Severe Weather & Heat Coordination Message #1 – Wednesday 6/25/25 Heat & Severe Weather Potential

Hello to all…

..One more day of intense heat and humidity for Southern New England but not as brutal as what was experienced Monday into Tuesday. A summary of 100+ degree readings from Amateur Radio and non-Amateur Radio SKYWARN Spotters can be seen below..
..A cold front moving through the area may bring isolated strong to severe thunderstorms to the area during the mid-afternoon into early evening. Coverage is expected to be isolated and only a few areas may experience that activity. Strong to damaging winds, hail, frequent lightning and heavy rainfall with brief urban and poor drainage flooding are the main threats. This front will bring an end to the heat and humidity for the region..
..A Heat Advisory is in effect through 7 PM Wednesday Evening for Northern Connecticut, Rhode Island except for Block Island, Essex, Middlesex, Southern Worcester, Suffolk, Norfolk, Bristol and Plymouth Counties of Massachusetts for heat indices of around 100 degrees. Use caution if outdoors in the heat for any extended period of time, take frequent breaks going into Air Conditioning if working outdoors and stay hydrated..
..SKYWARN Self-Activation with Amateur Radio Call-Up Nets will be done as needed for any strong to severe thunderstorms that can develop this Wednesday Afternoon into early evening. Pictures and videos of storm damage, hail, and flooding can be sent as a reply to this email, via our WX1BOX Facebook, X and Bluesky feeds or to the email address pics@nsradio.org with credit given to the spotter unless otherwise indicated..

WX1BOX Amateur Radio/non-Amateur Radio Spotter Report Log of Reports:
https://wx1box.org/wp-content/uploads/2025/06/reports-100-degree-temps-6-24-25.pdf

NWS Boston/Norton Area Forecast Discussion:
https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=AFD&format=CI&version=1&glossary=1&highlight=off

NWS Boston/Norton Heat Advisory Statement:
https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=NPW&format=CI&version=1&glossary=1&highlight=off

NWS Boston/Norton Enhanced Hazardous Weather Outlook:
https://www.weather.gov/erh/ghwo?wfo=box

Respectfully Submitted,

Robert Macedo (KD1CY)
ARES SKYWARN Coordinator
Eastern Massachusetts ARES Section Emergency Coordinator
Home Phone #: (508) 994-1875 (After 6 PM)
Home/Data #: (508) 997-4503 (After 6 PM)
Email Address: rmacedo@rcn.com
https://ares.ema.arrl.org
https://www.wx1box.org
Like us on Facebook – https://www.facebook.com/wx1box
Follow us on Twitter – https://twitter.com/wx1box
Subscribe on YouTube – https://www.youtube.com/@wx1box-nwsboston-amateur-radio

Severe Weather & Heat Coordination Message #3 – Extreme Heat Sunday 6/22/25-Tuesday 6/24/25 & Severe Weather Potential Sunday 6/22/25 PM Thru Evening

Hello to all…

..Extreme heat is expected to setup over the region Sunday through Tuesday. The highest heat days are expected to be Monday and Tuesday. Sunday could have high heat potential as well but current shower activity from a remnant Mesoscale Convective System or (MCS) may keep temperatures a bit cooler for Sunday but it will still be hot and humid presuming sufficient clearing develops. The main severe weather impacts overnight from this MCS was felt in Central New York State with over 69,000 without power as of 730 AM this morning..
..Any severe weather potential for today has shifted to Sunday Afternoon and Evening, should be isolated in nature, and will be contingent on cloud cover clearing to allow for sufficient heating and destabilization and any boundaries or trigger to tap into a very unstable atmosphere presuming clearing develops. Greatest risk would be in Western and Central Massachusetts and Northern Connecticut..
..The Storm Prediction Center (SPC) has continued portions of Western and Central Massachusetts and Northern Connecticut in a Marginal Risk of Severe Weather this Sunday Afternoon through early evening. Strong to damaging winds, hail, frequent lightning and heavy downpours leading to urban and poor drainage flooding are the main threats. The threat again is likely to be isolated..
..An Extreme Heat Warning remains in effect from 11 AM Sunday to 8 PM Tuesday Evening for the entire NWS Norton Coverage area except for Cape Cod and the Islands and the East slopes of the Berkshires for heat indices of up to 110 degrees expected. A Heat Advisory remains in effect from 11 AM Sunday to 8 PM Tuesday for Western Franklin, Western Hampshire and Western Hampden Counties for heat indices up to 100 degrees expected. Use caution with any outdoor activities, drink plenty of liquids and take frequent breaks from the heat in Air Conditioning when possible..
..SKYWARN Self-Activation with Amateur Radio Call-Up Nets are possible Sunday Afternoon and Evening. Pictures and videos of storm damage, hail, and flooding can be sent as a reply to this email, via our WX1BOX Facebook, X and Bluesky feeds or to the email address pics@nsradio.org with credit given to the spotter unless otherwise indicated..

The headlines depict the current thinking on the Extreme Heat Warning and Heat Advisory. Sunday’s high temperature profile will be contingent on clearing from the remnant MCS that hit the Central New York area the hardest during the overnight hours. It will likely be cooler than originally thought for Sunday but still hot and humid. Monday and Tuesday are a high confidence on intense heat and humidity so use caution if doing any strenuous activities outdoors or in non-Air Conditioned environments, stay cool and drink plenty of liquids.

Turning our attention to the severe weather potential, we are once again humbled on how modeling of MCS’ remains a low confidence forecast. Models were ranging from Northern to Southern New England on potential severe weather impacts and the impacts ended up being felt in Central New York with wind damage, large hail and flash flooding. Over 69,000 were without power centered in Central NY where the complex went through in the NWS Binghamton NY coverage area. The remnant MCS has brought showers to Southern New England and cloud cover. This cloud cover could preclude any later Sunday severe weather potential unless it clears out by early afternoon.

For the Sunday Afternoon and Evening timeframe, the severe weather potential will be based on the following key factors:
1.) Clearing for destabilization after the remnant MCS has moved through the area.
2.) Available boundaries or triggers in the atmosphere assuming clearing can develop to allow for high instability to break the cap in the atmosphere.
3.) Ability of factors 1 and 2 to take advantage of an Elevated Mixed Layer or EML that should remain over the region through this evening. At this time, activity is expected to be isolated or the cap may be too strong to break for the marginal risk area but bears watching as any thunderstorm development could quickly become severe if any activity can break the cap.

SKYWARN Self-Activation with Amateur Radio Call-Up Nets are possible Sunday Afternoon and Evening. Pictures and videos of storm damage, hail, and flooding can be sent as a reply to this email, via our WX1BOX Facebook, X and Bluesky feeds or to the email address pics@nsradio.org with credit given to the spotter unless otherwise indicated. This will be the last coordination message on the severe weather potential for Sunday as we move to a monitoring mode. Below is the NWS Boston/Norton Area Forecast Discussion, Enhanced Hazardous Weather Outlook and SPC Day-1 Convective Outlook:

NWS Boston/Norton Area Forecast Discussion:
https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=AFD&format=CI&version=1&glossary=1&highlight=off

NWS Boston/Norton Extreme Heat Warning/Heat Advisory Statement:
https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=NPW&format=CI&version=1&glossary=1&highlight=off

NWS Boston/Norton Enhanced Hazardous Weather Outlook:
https://www.weather.gov/erh/ghwo?wfo=box

SPC Day-1 Convective Outlook:
https://www.spc.noaa.gov/products/outlook/day1otlk.html

Respectfully Submitted,

Robert Macedo (KD1CY)
ARES SKYWARN Coordinator
Eastern Massachusetts ARES Section Emergency Coordinator
Home Phone #: (508) 994-1875 (After 6 PM)
Home/Data #: (508) 997-4503 (After 6 PM)
Email Address: rmacedo@rcn.com
https://ares.ema.arrl.org
https://www.wx1box.org
Like us on Facebook – https://www.facebook.com/wx1box
Follow us on Twitter – https://twitter.com/wx1box
Subscribe on YouTube – https://www.youtube.com/@wx1box-nwsboston-amateur-radio

Severe Weather & Heat Coordination Message #2 – Extreme Heat Sunday 6/22/25-Tuesday 6/24/25 & Severe Weather Potential Sunday 6/22/25 Early AM thru Evening

Hello to all…

**This coordination message is a small update to the morning message with some updates from SPC on the severe weather potential from their latest Day-2 Outlook and the latest NWS Boston/Norton Afternoon Area Forecast Discussion. It remains a lower confidence forecast on the severe weather potential.**

..After Friday’s strong to damaging wind event, attention turns to extreme heat Sunday to Tuesday and severe weather potential for overnight Saturday to Sunday Morning and possibly later Sunday Afternoon and Evening..
..Extreme heat is expected to setup over the region Sunday through Tuesday. The highest heat days are expected to be Monday and Tuesday. Sunday could have high heat potential as well but that will also be contingent on how a Mesoscale Convective System or (MCS) tracks and whether it affects Southern New England and lingers during the morning or tracks north of the region. This MCS will also have an impact on any severe weather potential that would occur during the overnight hours into Sunday Morning and any later Sunday Afternoon and Evening potential..
..The Storm Prediction Center (SPC) has continued portions of Western Massachusetts from roughly the CT Valley west in a marginal risk for severe weather today during the overnight period of the Day-1 Convective Outlook and has placed all of Southern New England in a marginal risk for severe weather for Sunday. The Sunday potential remains dependent on how the MCS tracks and whether its over or north of the region and how/if the atmosphere becomes favorable for severe weather later Sunday Afternoon. SPC has hinted depending on the MCS track and how things evolve that an upgrade to the marginal risk could occur for either Southern New England or the Mid-Atlantic..
..Confidence in severe weather potential overnight through Sunday remains lower than normal for this timeframe and there could be significant short term changes to the potential ranging from a very potent event to little or no activity. Trends will be monitored on this potential..
..Timeframe for severe weather potential would be from around 3 AM-11 AM Sunday Morning if the MCS tracks over the region and then mid-Sunday Afternoon to early evening for a possible second round of severe weather potential. Strong to damaging winds, hail, frequent lightning and heavy downpours leading to urban and poor drainage flooding are the main threats. Given the overnight timing, please have a way to alert yourself to severe weather during nocturnal hours if warnings are issued for your local area..
..An Extreme Heat Warning remains in effect from 11 AM Sunday to 8 PM Tuesday Evening for the entire NWS Norton Coverage area except for Cape Cod and the Islands and the East slopes of the Berkshires for heat indices of up to 110 degrees expected. A Heat Advisory remains in effect from 11 AM Sunday to 8 PM Tuesday for Western Franklin, Western Hampshire and Western Hampden Counties for heat indices up to 100 degrees expected. Use caution with any outdoor activities, drink plenty of liquids and take frequent breaks from the heat in Air Conditioning when possible..
..SKYWARN Self-Activation with Amateur Radio Call-Up Nets are possible overnight tonight to late Sunday Morning and possibly again Sunday Afternoon and Evening. Pictures and videos of storm damage, hail, and flooding can be sent as a reply to this email, via our WX1BOX Facebook, X and Bluesky feeds or to the email address pics@nsradio.org with credit given to the spotter unless otherwise indicated..

With fully leaved out trees and wind gusts of 40-50 MPH and isolated higher gusts, pockets of tree and wire damage occurred particularly in interior Massachusetts, Rhode Island and Northeast Connecticut. Any pictures/videos etc. from Friday’s high wind event are still welcome. Below is a summary on the wind gusts and wind damage reports received:

WX1BOX Amateur Radio Log:
https://wx1box.org/wp-content/uploads/2025/06/reports_6_20_25.pdf

The headlines depict the current thinking on the Extreme Heat Warning and Heat Advisory. While Sunday’s high temperature profile will be contingent on a severe weather complex known as a MCS as highlighted in the headlines, Monday and Tuesday are a high confidence on intense heat and humidity so use caution if doing any strenuous activities outdoors or in non-Air Conditioned environments, stay cool and drink plenty of liquids.

Turning our attention to the severe weather potential, this remains a lower than normal confidence for an event that could occur in roughly 12-24 hours. The setup which could feature a MCS has varying model solutions from no impact and it staying far to the north to a very potent event affecting Southern New England. The MCS activity will be during the overnight hours into Sunday Morning further complicating any preparedness. Having a means to be alerted to any Severe Thunderstorm or other warnings during the overnight via NOAA Weather Radio Alert and WEA is suggested for this timeframe. If no warnings are issued, alerts won’t occur and if there is a warning posted you can prepare as needed for the severe weather potential.

Any activity Sunday Afternoon and Evening will be predicated on the MCS track. A MCS track over the area could result in little to no activity later Sunday and may also reduce temperatures a bit due to lingering clouds and shower and thunderstorm activity. If the MCS stays to the north, then there could be severe weather potential later Sunday Afternoon and Evening but it would need a trigger to break a cap despite extreme instability from intense heating. This is a bit of a “nowcasting” situation that will be updated.

The key factors in the severe weather potential and when it occurs;
1.) The track of the MCS which will determine a round of overnight into mid to late Sunday Morning activity and how it affects later day activity.
2.) The intensity of the MCS as it brings what is known as an Elevated Mixed Layer or EML that brings in extreme instability and there will be strong wind shear present.
3.) Later day activity is dependent on the MCS track and if any thunderstorm activity can break the Cap and take advantage of extreme instability presuming intense heating and destabilization depending on the track of the MCS and if the track is over the region, how quickly it clears out.

SKYWARN Self-Activation with Amateur Radio Call-Up Nets are possible overnight tonight to early Sunday Morning and possibly again Sunday Afternoon and Evening. Pictures and videos of storm damage, hail, and flooding can be sent as a reply to this email, via our WX1BOX Facebook, X and Bluesky feeds or to the email address pics@nsradio.org with credit given to the spotter unless otherwise indicated. The next coordination message will be posted by 9 AM Sunday Morning. Below is the NWS Boston/Norton Area Forecast Discussion, Enhanced Hazardous Weather Outlook and SPC Day-1 and Day-2 Convective Outlook:

NWS Boston/Norton Area Forecast Discussion:
https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=AFD&format=CI&version=1&glossary=1&highlight=off

NWS Boston/Norton Extreme Heat Warning/Heat Advisory Statement:
https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=NPW&format=CI&version=1&glossary=1&highlight=off

NWS Boston/Norton Enhanced Hazardous Weather Outlook:
https://www.weather.gov/erh/ghwo?wfo=box

SPC Day-1 Convective Outlook:
https://www.spc.noaa.gov/products/outlook/day1otlk.html

SPC Day-2 Convective Outlook:
https://www.spc.noaa.gov/products/outlook/archive/2025/day2otlk_20250621_1730.html

Respectfully Submitted,

Robert Macedo (KD1CY)
ARES SKYWARN Coordinator
Eastern Massachusetts ARES Section Emergency Coordinator
Home Phone #: (508) 994-1875 (After 6 PM)
Home/Data #: (508) 997-4503 (After 6 PM)
Email Address: rmacedo@rcn.com
https://ares.ema.arrl.org
https://www.wx1box.org
Like us on Facebook – https://www.facebook.com/wx1box
Follow us on Twitter – https://twitter.com/wx1box
Subscribe on YouTube – https://www.youtube.com/@wx1box-nwsboston-amateur-radio

Severe Weather & Heat Coordination Message #1 – Extreme Heat Sunday 6/22/25-Tuesday 6/24/25 & Severe Weather Potential Sunday 6/22/25 Early AM thru Evening

Hello to all…

..After Friday’s strong to damaging wind event, attention turns to extreme heat Sunday to Tuesday and severe weather potential for overnight Saturday to Sunday Morning and possibly later Sunday Afternoon and Evening..
..Extreme heat is expected to setup over the region Sunday through Tuesday. The highest heat days are expected to be Monday and Tuesday. Sunday could have high heat potential as well but that will also be contingent on how a Mesoscale Convective System or (MCS) tracks and whether it affects Southern New England and lingers during the morning or tracks north of the region. This MCS will also have an impact on any severe weather potential that would occur during the overnight hours into Sunday Morning..
..The Storm Prediction Center (SPC) has placed portions of Western Massachusetts from roughly the CT Valley west in a marginal risk for severe weather today during the overnight period of the Day-1 Convective Outlook and has placed all of Southern New England in a marginal risk for severe weather for Sunday. The Sunday potential will depend on how the MCS tracks and whether its over or north of the region and how/if the atmosphere becomes favorable for severe weather later Sunday Afternoon..
..Confidence in severe weather potential overnight through Sunday is lower than normal for this timeframe and there could be significant short term changes to the potential ranging from a very potent event to little or no activity. Trends will be monitored on this potential..
..Timeframe for severe weather potential would be from around 3 AM-8 AM Sunday Morning if the MCS tracks over the region and then mid-Sunday Afternoon to early evening for a possible second round of severe weather potential. Strong to damaging winds, hail, frequent lightning and heavy downpours leading to urban and poor drainage flooding are the main threats. Given the overnight timing, please have a way to alert yourself to severe weather during nocturnal hours if warnings are issued for your local area..
..An Extreme Heat Warning is now in effect from 11 AM Sunday to 8 PM Tuesday Evening for the entire NWS Norton Coverage area except for Cape Cod and the Islands and the East slopes of the Berkshires for heat indices of up to 110 degrees expected. A Heat Advisory is in effect from 11 AM Sunday to 8 PM Tuesday for Western Franklin, Western Hampshire and Western Hampden Counties for heat indices up to 100 degrees expected. Use caution with any outdoor activities, drink plenty of liquids and take frequent breaks from the heat in Air Conditioning when possible..
..SKYWARN Self-Activation with Amateur Radio Call-Up Nets are possible overnight tonight to early Sunday Morning and possibly again Sunday Afternoon and Evening. Pictures and videos of storm damage, hail, and flooding can be sent as a reply to this email, via our WX1BOX Facebook, X and Bluesky feeds or to the email address pics@nsradio.org with credit given to the spotter unless otherwise indicated..

With fully leaved out trees and wind gusts of 40-50 MPH and isolated higher gusts, pockets of tree and wire damage occurred particularly in interior Massachusetts, Rhode Island and Northeast Connecticut. Any pictures/videos etc. from Friday’s high wind event are still welcome. Below is a summary on the wind gusts and wind damage reports received:

WX1BOX Amateur Radio Log:
https://wx1box.org/wp-content/uploads/2025/06/reports_6_20_25.pdf

The headlines depict the current thinking on the Extreme Heat Warning and Heat Advisory. While Sunday’s high temperature profile will be contingent on a severe weather complex known as a MCS as highlighted in the headlines, Monday and Tuesday are a high confidence on intense heat and humidity so use caution if doing any strenuous activities outdoors or in non-Air Conditioned environments, stay cool and drink plenty of liquids.

Turning our attention to the severe weather potential, this is a lower than normal confidence for an event that could occur in roughly 18-30 hours. The setup which could feature a MCS has varying model solutions from no impact and it staying far to the north to a very potent event affecting Southern New England. The MCS activity will be during the overnight hours into Sunday Morning further complicating any preparedness. Having a means to be alerted to any Severe Thunderstorm or other warnings during the overnight via NOAA Weather Radio Alert and WEA is suggested for this timeframe. If no warnings are issued, alerts won’t occur and if there is a warning posted you can prepare as needed for the severe weather potential.

Any activity Sunday Afternoon and Evening will be predicated on the MCS track. A MCS track over the area could result in little to no activity later Sunday and may also reduce temperatures a bit due to lingering clouds and shower and thunderstorm activity. If the MCS stays to the north, then there could be severe weather potential later Sunday Afternoon and Evening but it would need a trigger to break a cap despite extreme instability from intense heating. This is a bit of a “nowcasting” situation that will be updated.

The key factors in the severe weather potential and when it occurs;
1.) The track of the MCS which will determine a round of overnight into early Sunday Morning activity and how it affects later day activity.
2.) The intensity of the MCS as it brings what is known as an Elevated Mixed Layer or EML that brings in extreme instability and there will be strong wind shear present.
3.) Later day activity is dependent on the MCS track and if any thunderstorm activity can break the Cap and take advantage of extreme instability presuming intense heating and destabilization depending on the track of the MCS and if the track is over the region, how quickly it clears out.

SKYWARN Self-Activation with Amateur Radio Call-Up Nets are possible overnight tonight to early Sunday Morning and possibly again Sunday Afternoon and Evening. Pictures and videos of storm damage, hail, and flooding can be sent as a reply to this email, via our WX1BOX Facebook, X and Bluesky feeds or to the email address pics@nsradio.org with credit given to the spotter unless otherwise indicated. Another coordination message will be posted by 11 PM Saturday Evening with an update. Below is the NWS Boston/Norton Area Forecast Discussion, Enhanced Hazardous Weather Outlook and SPC Day-1 and Day-2 Convective Outlook:

NWS Boston/Norton Area Forecast Discussion:
https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=AFD&format=CI&version=1&glossary=1&highlight=off

NWS Boston/Norton Extreme Heat Warning/Heat Advisory Statement:
https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=NPW&format=CI&version=1&glossary=1&highlight=off

NWS Boston/Norton Enhanced Hazardous Weather Outlook:
https://www.weather.gov/erh/ghwo?wfo=box

SPC Day-1 Convective Outlook:
https://www.spc.noaa.gov/products/outlook/day1otlk.html

SPC Day-2 Convective Outlook:
https://www.spc.noaa.gov/products/outlook/archive/2025/day2otlk_20250621_0600.html

Respectfully Submitted,

Robert Macedo (KD1CY)
ARES SKYWARN Coordinator
Eastern Massachusetts ARES Section Emergency Coordinator
Home Phone #: (508) 994-1875 (After 6 PM)
Home/Data #: (508) 997-4503 (After 6 PM)
Email Address: rmacedo@rcn.com
https://ares.ema.arrl.org
https://www.wx1box.org
Like us on Facebook – https://www.facebook.com/wx1box
Follow us on Twitter – https://twitter.com/wx1box
Subscribe on YouTube – https://www.youtube.com/@wx1box-nwsboston-amateur-radio

Wind Coordination Message #1 – Friday 6/20/25 Strong Wind Gust Potential

Hello to all…

..Strong Wind Gusts Expected today in much of Southern New England with the strongest wind gusts in Western, Central and Northeast Massachusetts this Friday Morning through early Friday Evening. A Wind Advisory is now in effect through 6 PM Friday Evening for Franklin, Hampden, Hampshire, Worcester, Middlesex, Suffolk and Norfolk Counties for sustained West winds of 15-25 MPH with gusts to 50 MPH. Areas outside of the Wind Advisory area could see wind gusts of 40 MPH with isolated higher gusts..
..These winds could cause isolated pockets of tree and wire damage and power outages with fully leafed out trees..
..Yesterday’s severe weather event was far more localized to Hartford County with wind damage in Burlington and Canton CT and hail up to 1/2″ in Bristol and Unionville, CT. This was due to the upper level energy splitting between Northern New England and the New York City area south through New Jersey and Eastern Pennsylvania and the front not arriving until after Midnight which precluded a more widespread severe weather event..
..SKYWARN Self-Activation will monitor for wind gusts 40 MPH or greater and wind damage reports. Pictures and videos of wind damage can be sent as a reply to this email, via our WX1BOX Facebook, X and Bluesky feeds or to the email address pics@nsradio.org with credit given to the spotter unless otherwise indicated. This will be the only coordination message as we move into operations mode. Below is the NWS Boston/Norton Wind Advisory Statement, Area Forecast Discussion and Enhanced Hazardous Weather Outlook..

NWS Boston/Norton Area Forecast Discussion:
https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=AFD&format=CI&version=1&glossary=1&highlight=off

NWS Boston/Norton Wind Advisory Statement:
https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=NPW&format=CI&version=1&glossary=1&highlight=off

NWS Boston/Norton Enhanced Hazardous Weather Outlook:
https://www.weather.gov/erh/ghwo?wfo=box

Respectfully Submitted,

Robert Macedo (KD1CY)
ARES SKYWARN Coordinator
Eastern Massachusetts ARES Section Emergency Coordinator
Home Phone #: (508) 994-1875 (After 6 PM)
Home/Data #: (508) 997-4503 (After 6 PM)
Email Address: rmacedo@rcn.com
https://ares.ema.arrl.org
https://www.wx1box.org
Like us on Facebook – https://www.facebook.com/wx1box
Follow us on Twitter – https://twitter.com/wx1box
Subscribe on YouTube – https://www.youtube.com/@wx1box-nwsboston-amateur-radio

Severe Weather Coordination Message #2 – Thursday PM/Evening 6/19/25 Severe Weather Potential

Hello to all…

..Scattered Strong to Severe Thunderstorms likely Thursday Afternoon and Evening across much of interior Southern New England with strong to damaging winds, hail, frequent lightning and torrential rainfall leading to urban and poor drainage flooding to flash flooding as the main threats with an isolated tornado as a secondary threat for portions of the region..
..The Storm Prediction Center (SPC) continues a slight risk for severe weather for Western and Central Massachusetts and North-Central Connecticut with a marginal risk for severe weather for North-Central Rhode Island and the rest of Eastern Massachusetts along and west of the I-95 corridor. Timeframe for severe weather is between 2-10 PM Thursday Afternoon and Evening..
..SPC has issued a Mesoscale Convective Discussion (MCD) stating there is an 80% chance of a Severe Thunderstorm Watch this afternoon..
..A Heat Advisory remains in effect through 8 PM Thursday for Northern Connecticut, Providence County RI, Eastern Franklin, Eastern Hampshire, Eastern Hampden, Worcester, Central and Southwest Middlesex, Essex, Suffolk, Norfolk, North-Central Bristol and North-Central Plymouth Counties of Massachusetts for heat indices of 101 degrees. Use caution with outdoor activities, take frequent breaks in cooler areas and drink plenty of liquids to stay hydrated..
..SKYWARN Self-Activation with Amateur Radio Call-Up Nets will monitor any severe thunderstorm potential Thursday Afternoon and Evening. Pictures and videos of storm damage, hail, and flooding can be sent as a reply to this email, via our WX1BOX Facebook, X and Bluesky feeds or to the email address pics@nsradio.org with credit given to the spotter unless otherwise indicated..

Scattered strong to severe thunderstorms remain a concern for much of interior Southern New England for this Thursday Afternoon and Evening between 2-10 PM. The headlines depict the current thinking. Key factors remain:

1.) Timing of forcing and triggering of the atmosphere for the later afternoon/evening or earlier which is currently lined up appropriately for isolated to scattered strong to severe thunderstorm development. This timing will also effect how far east the severe weather potential will reach. Timing has trended maybe slightly earlier which may mean more coverage and a slightly further east coverage of severe thunderstorms.
2.) Level of forcing lining up with the heating and destabilization along the pre-frontal trough and front versus being behind the front. This will dictate how widespread the strong to severe thunderstorm potential will be in the region. This appears to be lining up with the heating and destabilization potentially increase the severe weather coverage in the region.
3.) As always with severe thunderstorm events, not all locations will receive a severe thunderstorm. They will be isolated to scattered with pockets of wind damage, hail and urban/poor drainage flooding in those isolated to scattered locations.

SKYWARN Self-Activation will monitor any severe thunderstorm potential Thursday Afternoon and Evening. This will be the last coordination message as we shift into operations mode. Below is the NWS Boston/Norton Area Forecast Discussion, Heat Advisory Statement, Enhanced Hazardous Weather Outlook, SPC Mesoscale Convective Discussion and SPC Day-1 Convective Outlook.

NWS Boston/Norton Area Forecast Discussion:
https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=AFD&format=CI&version=1&glossary=1&highlight=off

NWS Boston/Norton Heat Advisory Statement:
https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=NPW&format=CI&version=1&glossary=1&highlight=off

NWS Boston/Norton Enhanced Hazardous Weather Outlook:
https://www.weather.gov/erh/ghwo?wfo=box

SPC Mesoscale Convective Discussion:
https://www.spc.noaa.gov/products/md/md1363.html

SPC Day-1 Convective Outlook:
https://www.spc.noaa.gov/products/outlook/day1otlk.html

Respectfully Submitted,

Robert Macedo (KD1CY)
ARES SKYWARN Coordinator
Eastern Massachusetts ARES Section Emergency Coordinator
Home Phone #: (508) 994-1875 (After 6 PM)
Home/Data #: (508) 997-4503 (After 6 PM)
Email Address: rmacedo@rcn.com
https://ares.ema.arrl.org
https://www.wx1box.org
Like us on Facebook – https://www.facebook.com/wx1box
Follow us on Twitter – https://twitter.com/wx1box
Subscribe on YouTube – https://www.youtube.com/@wx1box-nwsboston-amateur-radio

Severe Weather Coordination Message #1 – Thursday PM/Evening 6/18/25 – Severe Weather Potential

Hello to all…

..Isolated to Scattered Strong to Severe Thunderstorms likely Thursday Afternoon and Evening across much of interior Southern New England with strong to damaging winds, hail, frequent lightning and torrential rainfall leading to urban and poor drainage flooding to flash flooding as the main threats for portions of the region..
..The Storm Prediction Center (SPC) continues a slight risk for severe weather for Western and Central Massachusetts and North-Central Connecticut with a marginal risk for severe weather for North-Central Rhode Island and the rest of Eastern Massachusetts along and west of the I-95 corridor. Timeframe for severe weather is between 3-10 PM Thursday Afternoon and Evening..
..A Heat Advisory is now in effect from 11 AM to 8 PM Thursday for Northern Connecticut, Providence County RI, Eastern Franklin, Eastern Hampshire, Eastern Hampden, Worcester, Central and Southwest Middlesex, Essex, Suffolk, Norfolk, North-Central Bristol and North-Central Plymouth Counties of Massachusetts for heat indices of 101 degrees. Use caution with outdoor activities, take frequent breaks in cooler areas and drink plenty of liquids to stay hydrated..
..SKYWARN Self-Activation will monitor any severe thunderstorm potential Thursday Afternoon and Evening. Pictures and videos of storm damage, hail, and flooding can be sent as a reply to this email, via our WX1BOX Facebook, X and Bluesky feeds or to the email address pics@nsradio.org with credit given to the spotter unless otherwise indicated..

Isolated to scattered strong to severe thunderstorms remain a concern for much of interior Southern New England for this Thursday Afternoon and Evening between 3-10 PM. The headlines depict the current thinking. Key factors include:

1.) Timing of forcing and triggering of the atmosphere for the later afternoon/evening or earlier which is currently lined up appropriately for isolated to scattered strong to severe thunderstorm development. This timing will also effect how far east the severe weather potential will reach.
2.) Level of forcing lining up with the heating and destabilization along the pre-frontal trough and front versus being behind the front. This will dictate how widespread the strong to severe thunderstorm potential will be in the region. If this lines up with the heating and destabilization, it would increase the severe weather coverage in the region.
3.) As always with severe thunderstorm events, not all locations will receive a severe thunderstorm. They will be isolated to scattered with pockets of wind damage, hail and urban/poor drainage flooding in those isolated to scattered locations.

SKYWARN Self-Activation will monitor any severe thunderstorm potential Thursday Afternoon and Evening. The next coordination message will be posted by 11 AM Thursday Morning. Below is the NWS Boston/Norton Area Forecast Discussion, Heat Advisory Statement, Enhanced Hazardous Weather Outlook and SPC Day-2 Convective Outlook.

NWS Boston/Norton Area Forecast Discussion:
https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=AFD&format=CI&version=1&glossary=1&highlight=off

NWS Boston/Norton Heat Advisory Statement:
https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=NPW&format=CI&version=1&glossary=1&highlight=off

NWS Boston/Norton Enhanced Hazardous Weather Outlook:
https://www.weather.gov/erh/ghwo?wfo=box

SPC Day-2 Convective Outlook:
https://www.spc.noaa.gov/products/outlook/archive/2025/day2otlk_20250618_1730.html

Respectfully Submitted,

Robert Macedo (KD1CY)
ARES SKYWARN Coordinator
Eastern Massachusetts ARES Section Emergency Coordinator
Home Phone #: (508) 994-1875 (After 6 PM)
Home/Data #: (508) 997-4503 (After 6 PM)
Email Address: rmacedo@rcn.com
https://ares.ema.arrl.org
https://www.wx1box.org
Like us on Facebook – https://www.facebook.com/wx1box
Follow us on Twitter – https://twitter.com/wx1box
Subscribe on YouTube – https://www.youtube.com/@wx1box-nwsboston-amateur-radio

 

SKYWARN Training Classes – Wednesday Evening 6/18/25 and Sunday AM 6/22/25

Hello to all…

This week, we have one class in West Warwick, RI that still has open seats available. In addition, we have added a class at the Southeast Massachusetts Amateur Radio Association in South Dartmouth, MA for Sunday 6/22/25 – 930 AM-1130 AM. Details on each class is listed below and also posted on our web site:

Wednesday June 18th, 2025 – 600-800 PM EDT:
Rhode Island Medical Reserve Corps
297 Cowesett Ave
West Warwick RI, 02893
Taught by: NWS Forecaster
Registration Required: https://docs.google.com/forms/d/e/1FAIpQLScALHz6PuPZwaPnSeLXXe3RZYl-QJnDiC1zStTxu_Nbs2gsNg/viewform

Sunday June 22nd, 2025 – 930 AM-1130 AM EDT:
SEMARA – Southeast Massachusetts Amateur Radio Association
54 Donald Street
South Dartmouth, MA 02748
Sponsored by: SEMARA – Southeast Massachusetts Amateur Radio Association
Taught by: Amateur Radio Coordinator
Registration Required: https://docs.google.com/forms/d/e/1FAIpQLSfsZMjRBA8y7RKfsJlFQVMKAghWHzCAzRPebG0-Yuhz4H_cqA/viewform

We hope more folks can attend the classes scheduled above. Additional classes may be scheduled sponsored by Amateur Radio groups during the summer/fall as well. Please spread the word about these classes and thanks to all for their support!

Respectfully Submitted,

Robert Macedo (KD1CY)
ARES SKYWARN Coordinator
Eastern Massachusetts ARES Section Emergency Coordinator
Home Phone #: (508) 994-1875
Home/Data #: (508) 997-4503
Email Address: rmacedo@rcn.com
https://ares.ema.arrl.org
https://www.wx1box.org
Like us on Facebook: https://www.facebook.com/wx1box
Follow us on Twitter: https://www.twitter.com/wx1box
Subscribe on Youtube – https://www.youtube.com/@wx1box-nwsboston-amateur-radio

Severe Weather Coordination Message #1 – Late Tuesday PM/Evening 6/10/25 Severe Weather Potential

Hello to all…

..Isolated to Scattered Strong to Severe Thunderstorms are possible in Western and Central Massachusetts and Northwest/North-Central Connecticut between 4-9 PM ET Tuesday Afternoon and Evening if sufficient clearing for destabilization occurs behind initial area of showers and the timing of the cold front can be overlapped sufficiently with any heating from clearing in the late afternoon/early evening..
..The Storm Prediction Center (SPC) has placed Western and Central Massachusetts and Northwest and North-Central Connecticut in a marginal risk for severe weather. Strong to damaging winds, hail, frequent lightning and heavy downpours with potential urban and poor drainage flooding are the main threats..
..SKYWARN Self-Activation with Amateur Radio Call-Up Nets possible for any isolated to scattered strong to severe thunderstorm potential after 4 PM Tuesday. Pictures and videos of wind damage, hail, flooding etc. can be sent as a reply to this email, via our Facebook/X/Bluesky feeds or the email address pics@nsradio.org with credit given to the spotter unless otherwise indicated. This will be the only coordination message as we shift into an operations/monitoring mode. Below is the NWS Boston/Norton Area Forecast Discussion, Enhanced Hazardous Weather Outlook and SPC Day-1 Convective Outlook..

NWS Boston/Norton Area Forecast Discussion:
https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=AFD&format=CI&version=1&glossary=1&highlight=off

NWS Boston/Norton Enhanced Hazardous Weather Outlook:
https://www.weather.gov/erh/ghwo?wfo=box

SPC Day-1 Convective Outlook:
https://www.spc.noaa.gov/products/outlook/day1otlk.html

Respectfully Submitted,

Robert Macedo (KD1CY)
ARES SKYWARN Coordinator
Eastern Massachusetts ARES Section Emergency Coordinator
Home Phone #: (508) 994-1875 (After 6 PM)
Home/Data #: (508) 997-4503 (After 6 PM)
Email Address: rmacedo@rcn.com
https://ares.ema.arrl.org
https://www.wx1box.org
Like us on Facebook – https://www.facebook.com/wx1box
Follow us on Twitter – https://twitter.com/wx1box
Subscribe on YouTube – https://www.youtube.com/@wx1box-nwsboston-amateur-radio

Severe Weather Coordination Message #2 – Friday Afternoon and Evening 6/6/25 Severe Weather/Flash Flood Potential

Hello to all…

..Isolated Severe Thunderstorm this morning caused significant wind damage and large hail in Ayer/Shirley MA and to a lesser extent in Leominster MA between 650 to 730 AM Friday Morning. Additional Isolated to Scattered Strong to Severe Thunderstorms likely this Friday Afternoon and Evening across much of interior Southern New England with strong to damaging winds, hail, frequent lightning and torrential rainfall leading to urban and poor drainage flooding to flash flooding for portions of the region..
..The Storm Prediction Center (SPC) continues a slight risk for severe weather with a marginal risk for severe weather for North-Central Rhode Island and the rest of Eastern Massachusetts away from the south coast. Timeframe for severe weather is between 2-10 PM this Friday Afternoon and Evening..
..A Flood Watch is now in effect through late Friday Evening for Franklin, Hampshire, Hampden, Worcester, Middlesex, and Western Essex Counties of Massachusetts for localized flooding of 2-3″ of rain causing localized urban and poor drainage flooding to flash flooding..
..SKYWARN Self-Activation will monitor any severe thunderstorm potential Friday Afternoon and Evening. Pictures and videos of storm damage, hail, and flooding can be sent as a reply to this email, via our WX1BOX Facebook, X and Bluesky feeds or to the email address pics@nsradio.org with credit given to the spotter unless otherwise indicated. .

This morning an isolated severe thunderstorm caused significant wind damage and large hail in the communities of Ayer and Shirley and to a lesser extent Leominster, MA. The current log of that storm activity can be seen below:

WX1BOX Amateur Radio/non-Amateur Radio reports log:
https://wx1box.org/wp-content/uploads/2025/06/reports_6_6_25.pdf

Isolarted to scattered strong to severe thunderstorms remain a concern for much of interior Southern New England for this Friday Afternoon after 2 PM through 10 PM. The headlines depict the current thinking. Key factors include:

1.) Sufficient heating and destabilization for strong to severe thunderstorm development. This has occurred despite some of the overnight and early Friday Morning strong to severe thunderstorm activity.
2.) Timing of forcing and triggering of the atmosphere at the time of peak heating which is currently lined up appropriately for isolated to scattered strong to severe thunderstorm development. While wind fields are marginally sufficient for severe thunderstorm development, other instability parameters are favorable and it also appears wind shear values are a bit stronger than indicated based on earlier this morning severe thunderstorm activity.
3.) As always with severe thunderstorm events, not all locations will receive a severe thunderstorm. They will be isolated to scattered with pockets of wind damage, hail and urban/poor drainage flooding in those isolated to scattered locations.

SKYWARN Self-Activation will monitor any severe thunderstorm potential Friday Afternoon and Evening. This will be the last coordination message as we shift into operations mode. Below is the NWS Boston/Norton Area Forecast Discussion, Enhanced Hazardous Weather Outlook and SPC Day-1 Convective Outlook.

NWS Boston/Norton Area Forecast Discussion:
https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=AFD&format=CI&version=1&glossary=1&highlight=off

NWS Boston/Norton Enhanced Hazardous Weather Outlook:
https://www.weather.gov/erh/ghwo?wfo=box

SPC Day-1 Convective Outlook:
https://www.spc.noaa.gov/products/outlook/day1otlk.html

Respectfully Submitted,

Robert Macedo (KD1CY)
ARES SKYWARN Coordinator
Eastern Massachusetts ARES Section Emergency Coordinator
Home Phone #: (508) 994-1875 (After 6 PM)
Home/Data #: (508) 997-4503 (After 6 PM)
Email Address: rmacedo@rcn.com
https://ares.ema.arrl.org
https://www.wx1box.org
Like us on Facebook – https://www.facebook.com/wx1box
Follow us on Twitter – https://twitter.com/wx1box
Subscribe on YouTube – https://www.youtube.com/@wx1box-nwsboston-amateur-radio

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