Hello to all…

..Significant severe weather outbreak across Western, Central and Northeast Massachusetts and Northern Connecticut Saturday Afternoon and Evening with 5 EF1 Tornadoes confirmed in the communities of Paxton, Holden, Berlin and Stow MA (2 separate touchdowns were determined in Paxton). Full tornado path width and length information has now been provided. Also hard hit with wind damage is the Holyoke/Easthampton/Southampton MA area..
..NWS/MEMA Storm Surveys were conducted in the above communities based on the preliminary damage reports received by Amateur Radio and non-Amateur Radio SKYWARN Spotters including efforts from Amateur Radio and non-Amateur Radio SKYWARN Spotters who helped photograph and video storm damage in Paxton, Holden, Berlin and Stow MA. Many thanks to all involved in this effort as it helps the damage survey process..
..Additional reports, pictures and videos of wind damage, hail, flooding, lightning damage, rain gauge reports 1″ or more and measured wind gusts of 40 MPH or greater will be helpful as NWS completes documentation of this severe weather outbreak. They can be sent as a reply to this message, via our WX1BOX Facebook/X/Bluesky feeds or to the email address pics@nsradio.org with credit to the spotter unless otherwise indicated..
..A final post severe weather coordination message will be posted by the end of this week as our national Amateur Radio Association publishes a story on this event. A WX1BOX Facebook Photo Album of damage photos has been added to this update along with an updated Amateur Radio Log of reports..
..Below are the NWS Local Storm Report and Public Information Statement updates on the 5 EF1 tornadoes, the prior NWS Boston/Norton Local Storm Reports/Public Information Statements, updated WX1BOX Amateur Radio Report Log and WX1BOX Facebook Photo Album and a short write-up on some facts around having the 5 EF1 Tornadoes on Saturday 9/6/25..

5 EF1 Tornadoes across parts of Central Massachusetts in the communities of Paxton, Holden, Berlin and Stow MA. One of the tornado touchdowns was twice in the area of Paxton and Holden. These multiple tornado touchdowns were from the same parent severe thunderstorm cell where the tornado lifted for a greater than 2 mile range which by NWS definition consitutes a new tornado touchdown. This is explained in the NWS Storm Data Preparation Directive and can be found in this large document by searching “2 mile” in the document.

This is the first time since the June 1st, 2011 Massachusetts Tornado Outbreak that 5 tornadoes were logged on the same day in the commonwealth of Massachusetts since June 1st 2011 and prior to that, the previous time this happened was July 3rd, 1997. The various reports and statements on the Saturday 9/6/25 severe weather outbreak is listed below:

NWS Boston/Norton Public Information Statement/Local Storm Report – EF1 Tornado Information:
https://wx1box.org/wp-content/uploads/2025/09/PNS_LSR_9_6_25_Tornadoes-Full-Summary.pdf
https://wx1box.org/wp-content/uploads/2025/09/PNS-9-6-25-EF1-Tornadoes-Prelim.pdf

NWS Storm Data Preparation Directive – How Tornado Touchdown Paths are Determined Reference Document:
https://www.weather.gov/media/directives/010_pdfs_archived/pd01016005c.pdf

NWS Boston/Norton Local Storm Reports (Reports prior to Tornado Classifications):
https://wx1box.org/wp-content/uploads/2025/09/LSR-9-6-25.pdf
https://wx1box.org/wp-content/uploads/2025/09/LSR-9-6-25-Sunday-Evening-Monday-Updates.pdf

NWS Boston/Norton Public Information Statement – Hail & Wind Gust Info:
https://wx1box.org/wp-content/uploads/2025/09/PNS-9-6-25-Hail-Wind-Gust-Reports.pdf

WX1BOX Amateur Radio Report Log:
https://wx1box.org/wp-content/uploads/2025/09/reports-9-6-25-rev-3.pdf

WX1BOX Facebook Photo Album:
https://www.facebook.com/media/set?vanity=wx1box&set=a.1196494649179017

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

Hello to all…

..Significant severe weather event across Western, Central and Northeast Massachusetts and Northern Connecticut Saturday Afternoon and Evening with 3-4 EF1 Tornadoes confirmed in the communities of Paxton, Holden, Berlin and Stow MA. The info is preliminary and full path and width info on the tornadoes will follow later on Tuesday. Also hard hit with wind damage is the Holyoke/Easthampton/Southampton MA area..
..NWS/MEMA Storm Surveys were conducted in the above communities based on the preliminary damage reports received by Amateur Radio and non-Amateur Radio SKYWARN Spotters including efforts from Amateur Radio and non-Amateur Radio SKYWARN Spotters who helped photograph and video storm damage in Paxton, Holden, Berlin and Stow MA. Many thanks to all involved in this effort as it helps the damage survey process..
..Additional reports, pictures and videos of wind damage, hail, flooding, lightning damage, rain gauge reports 1″ or more and measured wind gusts of 40 MPH or greater will be helpful as NWS continues the process of reviewing any other areas of damage. They can be sent as a reply to this message, via our WX1BOX Facebook/X/Bluesky feeds or to the email address pics@nsradio.org with credit to the spotter unless otherwise indicated..
..A final post severe weather coordination message will be posted later Tuesday with a WX1BOX Facebook Photo Album of damage photos and a final update to the Amateur Radio Log of reports along with NWS Local Storm Report and Public Information Statement updates. Below is the NWS Boston/Norton Local Storm Reports, Public Information Statements including preliminary EF1 Tornado information and updated WX1BOX Amateur Radio Report Log..

NWS Boston/Norton Public Information Statement – Preliminary EF1 Tornado Information:
https://wx1box.org/wp-content/uploads/2025/09/PNS-9-6-25-EF1-Tornadoes-Prelim.pdf

NWS Boston/Norton Local Storm Reports:
https://wx1box.org/wp-content/uploads/2025/09/LSR-9-6-25.pdf
https://wx1box.org/wp-content/uploads/2025/09/LSR-9-6-25-Sunday-Evening-Monday-Updates.pdf

NWS Boston/Norton Public Information Statement – Hail & Wind Gust Info:
https://wx1box.org/wp-content/uploads/2025/09/PNS-9-6-25-Hail-Wind-Gust-Reports.pdf

WX1BOX Amateur Radio Report Log:
https://wx1box.org/wp-content/uploads/2025/09/reports-9-6-25-rev-2.pdf

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

Hello to all…

..Significant severe weather event across Western, Central and Northeast Massachusetts and Northern Connecticut Saturday Afternoon and Evening with a “radar confirmed” Tornado and significant tree/wire/utility pole damage noted by Amateur Radio and non-Amateur Radio SKYWARN Spotters in Holden, MA and another area of significant tree/wire/pole damage in Berlin, MA. Also hard hit with wind damage is the Holyoke/Easthampton/Southampton MA area..
..Damage surveys in Holden and Berlin, MA will take place on Monday due to the rain today and the continued receipt of reports and review of additional data as its received..
..Additional reports, pictures and videos of wind damage, hail, flooding, lightning damage, rain gauge reports 1″ or more and measured wind gusts of 40 MPH or greater will be helpful as NWS continues the process of reviewing any other areas of damage.They can be sent as a reply to this message, via our WX1BOX Facebook/X/Bluesky feeds or to the email address pics@nsradio.org with credit to the spotter unless otherwise indicated..
..Another post severe weather coordination message will be posted later today/Monday Morning with a WX1BOX Facebook Photo Album of damage photos and an update to the Amateur Radio Log of reports along with any other NWS Local Storm Report and Public Information Statement updates. Below is the NWS Boston/Norton Local Storm Report, Public Information Statement and WX1BOX Amateur Radio Report Log..

NWS Boston/Norton Local Storm Report:
https://wx1box.org/wp-content/uploads/2025/09/LSR-9-6-25.pdf

NWS Boston/Norton Public Information Statement:
https://wx1box.org/wp-content/uploads/2025/09/PNS-9-6-25-Hail-Wind-Gust-Reports.pdf

WX1BOX Amateur Radio Report Log:
https://wx1box.org/wp-content/uploads/2025/09/reports-9-6-25.pdf

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

Hello to all…

..A cold front will approach Southern New England Saturday Afternoon and Evening setting the stage for Scattered to potentially numerous Strong to Severe Thunderstorms with strong to damaging winds, hail, frequent lightning and heavy rainfall leading to urban and poor drainage flooding as the main threats and even isolated tornadoes as a secondary threat..
..The Storm Prediction Center (SPC) has continued Northwest, North-Central Connecticut, Western and North-Central Massachusetts in a slight risk for severe weather with a marginal risk of severe weather through Northeast Connecticut, Northwest Rhode Island, south-central and Northeast Massachusetts. Timeframe for severe weather is between 12-10 PM ET Saturday..
..SKYWARN Self-Activation with Amateur Radio Call-Up Nets are likely for Saturday 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..

A cold front will approach Southern New England as warm and humid conditions for September cover the region. Things are continuing to line up for a rather active severe weather day for the region and NWS Norton has issued a Special Weather Statement highlighting the severe weather potential. The headlines depict the current thinking. Key factors include:

1.) The timing of the cold front and frontal forcing into the area near the time of peak heating to take advantage of strong wind shear profiles and expected high instability and this is lining up well currently.
2.) Amount of clearing for heating and destabilization to produce the expected high instability. Models have a sufficient window of clearing by late Saturday morning to mid-afternoon and this is key to expected severe weather potential. Low clouds are burning off in the marginal and slight risk areas to allow for heating.
3.) As always with severe/non-severe thunderstorm events, not all locations will receive a severe/non-severe thunderstorm. For today, they will be scattered and possibly numerous but not every area will see one. There will be scattered to numerous pockets of wind damage, hail and urban/poor drainage flooding in those isolated to scattered locations.

SKYWARN Self-Activation with Amateur Radio Call-Up Nets are likely for Saturday 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 as we shift into operations mode. Below is the NWS Boston/Norton Special Weather Statement, Area Forecast Discussion, Enhanced Hazardous Weather Outlook and SPC Day-1 Convective Outlook:

NWS Boston/Norton Special Weather Statement – Severe Thunderstorm Potential:
https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=SPS&format=CI&version=1&glossary=1&highlight=off

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

Hello to all…

..A cold front will approach Southern New England Saturday Afternoon and Evening setting the stage for Isolated to Scattered Strong to Severe Thunderstorms with strong to damaging winds, hail, frequent lightning and heavy rainfall leading to urban and poor drainage flooding as the main threats and even an isolated tornado as a secondary threat..
..The Storm Prediction Center (SPC) has placed Northwest, North-Central Connecticut, Western and North-Central Massachusetts in a slight risk for severe weather with a marginal risk of severe weather through Northeast Connecticut, Northwest Rhode Island, south-central and Northeast Massachusetts. Timeframe for severe weather is between 1-10 PM ET Saturday..
..SKYWARN Self-Activation with Amateur Radio Call-Up Nets are likely for Saturday 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..

A cold front will approach Southern New England as warm and humid conditions for September cover the region. The headlines depict the current thinking. Key factors include:

1.) The timing of the cold front and frontal forcing into the area near the time of peak heating to take advantage of strong wind shear profiles and expected high instability.
2.) Amount of clearing for heating and destabilization to produce the expected high instability. Models have a sufficient window of clearing by late Saturday morning to mid-afternoon and this is key to expected severe weather potential.
3.) As always with severe/non-severe thunderstorm events, not all locations will receive a severe/non-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 with Amateur Radio Call-Up Nets are likely for Saturday 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 10 AM Saturday Morning. Below is the NWS Boston/Norton Area Forecast Discussion, 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 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_20250905_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

Hello to all…

..Scattered Strong thunderstorms with an isolated severe thunderstorm or two are possible to likely during the day Friday particularly during the afternoon and evening. Strong to damaging winds, hail, frequent lighting and heavy rainfall leading to urban and poor drainage flooding are the main threats. While a strong thunderstorm cannot be ruled out during the morning hours, the main threat for this activity is between 12-9 PM Friday Afternoon and Evening as a cold front sweeps through the area..
..SKYWARN Self-Activation is likely with Amateur Radio Call-Up Nets possible to monitor the strong to isolated severe thunderstorm potential for Friday. This will be the only message on today’s potential unless a significant update to the situation occurs and time allows for an update. Below is the NWS Boston/Norton 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 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

Hello to all…

..Convective Showers and Isolated Thunderstorms will be capable of small hail/graupel and perhaps some brief strong wind gusts this Wednesday afternoon and evening in Southern New England as cooling temperatures aloft allow for conditions that may allow for some of this activity. The severe weather potential is low but reportable SKYWARN reporting conditions are possible this afternoon and evening in western areas through around 4 PM and in eastern areas mid-PM through 7 PM this evening..
..SKYWARN Self-Activation will monitor for any hail and strong wind gusts/isolated wind damage reports this Wednesday Afternoon and Evening with Amateur Radio call-up nets possible. Pictures of any storm damage and hail can be sent as a reply to this message, via our WX1BOX Facebook/X/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 for this event unless a significant upgrade to the situation occurs and time allows for an update. Below is the NWS Boston/Norton 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 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

Hello to all…

..Hurricane Erin will pass well south and east of Southern New England but its large size coupled with high pressure to the north will lead to strong to damaging wind gusts over the Cape and Islands, minor to low-end moderate coastal flooding in South Coastal Massachusetts/Rhode Island including Cape & Islands with some very minor splashover/coastal flooding in East Coastal Mass and high surf and rip currents across all East and South Coastal areas..
..A Wind Advisory is in effect from 5 PM Thursday Evening through 2 PM Friday Afternoon for Cape Cod and the Islands for sustained winds of 20-30 MPH with gusts to 50 MPH and isolated higher gusts possible. Wind Gusts across the rest of East and South Coastal Massachusetts could see wind gusts around 40 MPH with isolated higher gusts. These winds could cause isolated to pockets of tree and wire damage and isolated power outages..
..A Coastal Flood Advisory is in effect from 6 AM to 10 AM Friday Morning and 6 PM to 10 PM Friday Evening for Southern Bristol County Massachusetts, Newport, Washington, Southeast Providence, Eastern Kent and Bristol Counties of Rhode Island and from 10 PM Thursday Evening through 2 AM Friday Morning and 10 PM Friday Evening through 2 AM Saturday Morning for Martha’s Vineyard and Nantucket Islands for minor to low-end moderate coastal flooding at the time of these high tide cycles..
..A Coastal Flood Statement is in effect from late Thursday Evening to late Friday Night for East Coastal Massachusetts including Cape Cod and the Islands for minor splashover and minor coastal flooding at the time of high tide cycles in these areas..
..A High Surf Advisory is in effect through 8 PM Saturday for South Coastal Massachusetts and Rhode Island and Eastern Essex and Eastern Plymouth Counties of Massachusetts due to rip currents and high surf hazardous to swimmers..
..SKYWARN Self-Activation will monitor for measured wind gusts 40 MPH or greater, wind damage, coastal flooding/high surf/rip current reports. Pictures and videos of any wind damage, high surf, coastal flooding can be sent as a reply to this email, via the WX1BOX Facebook/X/Bluesky feeds and to the email address of pics@nsradio.org with credit to the spotter unless otherwise indicated. This will be the only coordination message on this event unless a significant update to the situation occurs and time allows for an update. Below is a summary of the rainfall reports from the Wednesday 8/20/25 to Thursday AM 8/21/25 rain event, NWS Boston/Norton Wind Advisory Statement, Coastal Flood Advisory/Statement/High Surf Advisory Statement, Area Forecast Discussion and Enhanced Hazardous Weather Outlook..

WX1BOX Amateur Radio/non-Amateur Radio Spotter Log of Rain Gauge Reports – Wednesday 8/20/25 to Thursday AM 8/21/25:
https://wx1box.org/wp-content/uploads/2025/08/reports_8_20_25.pdf

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 Coastal Flood Advisory/Statement/High Surf Advisory Statement:
https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=CFW&format=CI&version=1&glossary=1&highlight=off

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

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

Hello to all…

..A cold front will approach Southern New England Sunday Afternoon and Evening setting the stage for Isolated to Scattered Strong to Severe Thunderstorms with strong to damaging winds, hail, frequent lightning and heavy rainfall leading to urban and poor drainage flooding as the main threats..
..The Storm Prediction Center (SPC) has continued much of Southern New England in a marginal risk for severe weather. Timeframe for severe weather is between 3-10 PM ET Sunday..
..SKYWARN Self-Activation with Amateur Radio Call-Up Nets are possible to likely for 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..

Little to no change to the previous thinking from Sunday. One more day of heat and humidity before a cold front moves into the area Sunday Afternoon and Evening. The headlines depict the current thinking. Key factors include:

1.) The timing of the cold front into the area near the time of peak heating to take advantage of high instability despite weak wind shear profiles.
2.) Frontal forcing and instability to offset weaker wind shear, though wind shear is slightly stronger than the severe weather events earlier in the week, and a few other unfavorable severe weather parameters.
3.) As always with severe/non-severe thunderstorm events, not all locations will receive a severe/non-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 with Amateur Radio Call-Up Nets are possible to likely for 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 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

Hello to all…

..A cold front will approach Southern New England Sunday Afternoon and Evening setting the stage for Isolated to Scattered Strong to Severe Thunderstorms with strong to damaging winds, hail, frequent lightning and heavy rainfall leading to urban and poor drainage flooding as the main threats..
..The Storm Prediction Center (SPC) has placed much of Southern New England in a marginal risk for severe weather. Timeframe for severe weather is between 3-10 PM ET Sunday..
..SKYWARN Self-Activation with Amateur Radio Call-Up Nets are possible to likely for 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..

One more day of heat and humidity before a cold front moves into the area Sunday Afternoon and Evening. The headlines depict the current thinking. Key factors include:

1.) The timing of the cold front into the area near the time of peak heating to take advantage of high instability despite weak wind shear profiles.
2.) Frontal forcing and instability to offset weaker wind wind shear, though wind shear is slightly stronger than the severe weather events earlier in the week, and a few other unfavorable severe weather parameters.
3.) As always with severe/non-severe thunderstorm events, not all locations will receive a severe/non-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 with Amateur Radio Call-Up Nets are possible to likely for 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 11 AM Sunday Morning. Below is the NWS Boston/Norton Area Forecast Discussion, 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 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_20250816_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