Rob Macedo

Severe Weather Coordination Message #1 – Friday 8/29/25 Strong Thunderstorm/Isolated Severe Thunderstorm Potential

August 29, 2025 Rob Macedo

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
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Storm Coordination Message #1 – Convective Shower/Isolated Thunderstorm Small Hail/Graupel/Brief Strong Wind Gust Potential

August 27, 2025 Rob Macedo

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,

Uncategorized

Storm Coordination Message #1 – Thursday Evening 8/21/25-Friday Evening 8/22/25 Rip Current/High Surf/Coastal Flooding/Strong Wind Gusts Potential

August 21, 2025 Rob Macedo

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,

Uncategorized

Severe Weather Coordination Message #2 – Sunday PM & Evening 8/17/25 Severe Weather Potential

August 17, 2025 Rob Macedo

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,

Uncategorized

Severe Weather Coordination Message #2 – Sunday PM & Evening 8/17/25 Severe Weather Potential

August 17, 2025 Rob Macedo

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,

Uncategorized

Severe Weather Coordination Message #1 – Thursday PM/Evening 8/14/25 – Flood/Severe Weather Potential

August 14, 2025 Rob Macedo

Hello to all…

..A second cold front will approach Southern New England Thursday Afternoon and Evening setting the stage for thunderstorms with frequent lightning and heavy rainfall leading to localized urban and poor drainage flooding as the main threats but can’t rule out Isolated Strong to Severe Thunderstorms with strong to damaging winds and hail as well with the main threat area across central and eastern parts of Southern New England. Timeframe is in the 2-9 PM ET Thursday Afternoon and Evening timeframe..
..SKYWARN Self-Activation with Amateur Radio Call-Up Nets are possible to likely for 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..

Wednesday 8/13/25 brought a round of isolated severe thunderstorms and localized flooding to the region. The complete log of reports can be seen here:
https://wx1box.org/wp-content/uploads/2025/08/reports_8_13_25.pdf

Heat and humidity though a bit cooler than Wednesday is expected today followed by a second cold front with the main threat being thunderstorms with heavy rainfall and localized flooding The headlines depict the current thinking. Key factors include:

1.) The timing and strength of the cold front into the area near the time of peak heating to take advantage of instability despite weak wind shear profiles.
2.) Cloud cover and amount of clearing to determine the level of instability. More clearing with higher instability increases the threat for thunderstorms with localized flooding and the isolated strong to severe thunderstorm risk.
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 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. 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 only coordination message on the Thursday severe weather/flood potential. 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,

Uncategorized

Severe Weather Coordination Message #1 – Wednesday PM/Evening 8/13/25 Severe Weather/Flood Potential

August 13, 2025 Rob Macedo

Hello to all…

..A cold front will approach Southern New England Wednesday 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 from roughly the I-95 corridor north and west in Massachusetts, much of Rhode Island and Connecticut. Timeframe for severe weather is between 2-10 PM ET Wednesday..
..Another round of thunderstorms with a second cold front Thursday Afternoon and Evening may produce heavy rainfall and potential urban and floor drainage flooding in portions of Eastern New England. The severe weather potential for Thursday is low at this time..
..SKYWARN Self-Activation with Amateur Radio Call-Up Nets are possible to likely for Wednesday Afternoon and Evening. SKYWARN Activation with Amateur Radio Call-Up Nets are also possible Thursday Afternoon/Evening for heavy rainfall/flood potential. 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 Wednesday Afternoon and Evening with a second cold front moving over Southern New England Thursday 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 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 Wednesday Afternoon and Evening. SKYWARN Activation with Amateur Radio Call-Up Nets are also possible Thursday Afternoon/Evening for heavy rainfall/flood potential. 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 only coordination message on the Wednesday severe weather potential and a coordination message on the Thursday PM/Evening heavy rainfall/flash flood potential will be posted either Wednesday Evening before 11 PM or Thursday Morning before 11 AM. 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,

Uncategorized

Special Announcement: 2025 Northeast HamXposition – 1 Degree Outside Presentation by Matt and Danielle Noyes/SKYWARN Training & Other SKYWARN/Weather Related Topics

August 8, 2025 Rob Macedo

Hello to all…

The 2025 Northeast HamXposition and ARRL New England Division Convention will be held from Thursday Evening 8/21/25-Sunday 8/24/25. There will be many interesting forums at this year’s convention. For complete information on this Amateur Radio Convention, please see the following link:
https://hamxposition.org/

The Convention is honored and privileged that Matt and Danielle Noyes will return and provide an update on their digital weather venture, 1Degree Outside. They will be presenting about their latest updates and ventures for their new company and have entered into a partnership with the WX1BOX Amateur Radio SKYWARN team on SKYWARN surface reporting during severe weather. They will discuss the new partnership and the vital role Amateur Radio & non-Amateur Radio SKYWARN Spotters play with surface reporting during severe weather events and how they incorporate the data into their operations.

We will also have a SKYWARN/ARES/RACES table at the Convention as we have had going back to the late 1990s. In addition, there will be several SKYWARN and weather related topics including SKYWARN Training and Advanced Topics in SKYWARN presentation with new material added for this year which will be taught by KD1CY-Rob Macedo, Eastern Mass ARES SEC & SKYWARN Coordinator.

A list of the key SKYWARN and weather related presentations for Northeast HamXposition are listed below:

Friday 8/22/25:
100 PM: SKYWARN Spotter training by KD1CY-Rob Macedo

Saturday 8/23/25:
200 PM: Advanced Topics in SKYWARN – Doppler Radar Fundamentals & How You Can Help with Severe Weather Reporting Situational Awareness by KD1CY-Rob Macedo
300 PM: 1DegreeOutside: Their Digital-First Weather Approach One Year Later & Vital Partnership with the WX1BOX Amateur Radio SKYWARN Team by Matt and Danielle Noyes
There are many other topics related to ARES and Emergency Communications at the convention. The full schedule of presentations can be seen here:
https://registration.hamxposition.org/Schedule/

The Convention also features a full Amateur Radio Flea Market and Amateur Radio vendors. For those that maybe interested in getting their Amateur Radio license, the convention has a “Tech in a Day” class on Saturday 8/23/25 and several Volunteer Examiner (VE) test sessions as listed on the schedule.

We hope many from the Amateur Radio community and even those outside of the Amateur Radio community can attend and see the SKYWARN/Weather related presentations and for those that might be interested in getting their Amateur Radio license, use the convention as an opportunity to get licensed by preparing ahead of time or take advantage of the Tech-In-A-Day licensing class offered. Thanks to all for their support!

Respectfully Submitted,

Uncategorized

Severe Weather Coordination Message #2 – Wednesday PM & Evening 7/30/25 Severe Weather Potential

July 30, 2025 Rob Macedo

Hello to all…

..A cold front will approach Southern New England Wednesday 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 threat maybe more isolated than what was being seen in models yesterday but marginal risk for severe weather has been maintained for the region..
..The Storm Prediction Center (SPC) has placed all of Southern New England in a marginal risk for severe weather so this means an expansion through Southeast Coastal New England. Timeframe for severe weather is between 2-10 PM ET Wednesday..
..A Heat Advisory is in effect through 8 PM Wednesday for all of Southern New England except for the east slopes of the Berkshires, Cape Cod and the Islands with heat indices up to 101 degrees. Use caution in working outdoors, take frequent breaks, spend time in cooler areas and stay hydrated..
..Heavy rainfall including from thunderstorms is possible Thursday into early Friday potentially resulting in flooding issues as the cold front stalls over Southern New England before moving south of the region Friday bringing pleasant weekend weather. Further details on this heavy rainfall for Thursday into early Friday will follow after the severe weather potential for Wednesday has passed..
..SKYWARN Self-Activation with Amateur Radio Call-Up Nets are possible to likely for Wednesday Afternoon and Evening. SKYWARN Activation with Amateur Radio Call-Up Nets are also possible Thursday into Friday AM for heavy rainfall/flood potential. 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 Wednesday Afternoon and Evening and stall over Southern New England Friday then shifts south of the area during the day Friday. 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 strong wind shear profiles.
2.) Frontal forcing, instability and wind shear to offset some unfavorable severe weather parameters.
3.) Mid-level drying during the day Wednesday if that occurs and whether moisture returns in the mid-levels during the time of peak heating.
4.) Cooling temperatures aloft and how this could offset unfavorable severe weather parameters particularly the mid-level drying
5.) 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.

Heavy rainfall including from thunderstorms is possible Thursday into early Friday potentially resulting in flooding issues as the cold front stalls over Southern New England before moving south of the region Friday bringing pleasant weekend weather. Further details on this heavy rainfall for Thursday into early Friday will follow after the severe weather potential for Wednesday has passed.

SKYWARN Self-Activation with Amateur Radio Call-Up Nets are possible to likely for Wednesday Afternoon and Evening. SKYWARN Activation with Amateur Radio Call-Up Nets are also possible Thursday into early Friday for heavy rainfall/flood potential. 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 this event and a coordination message on the Thursday PM to Friday AM heavy rainfall/flash flood potential will be posted either Wednesday Evening before 11 PM or Thursday Morning before 11 AM. Below is the NWS Boston/Norton Heat Advisory Statement, Area Forecast Discussion, Enhanced Hazardous Weather Outlook and SPC Day-1 Convective Outlook:

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 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,

Uncategorized

Severe Weather Coordination Message #1 – Wednesday PM/Evening 7/30/25 Severe Weather Potential

July 29, 2025 Rob Macedo

Hello to all…

..A cold front will approach Southern New England Wednesday 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 Southern New England from essentially the Rte-24 corridor north and west through North-Central Rhode Island, Connecticut, Western, Central and Eastern Massachusetts in a marginal risk for severe weather. Timeframe for severe weather is between 2-10 PM ET Wednesday..
..A Heat Advisory is in effect through 8 PM Wednesday for all of Southern New England except for the east slopes of the Berkshires, Cape Cod and the Islands with heat indices up to 101 degrees. Use caution in working outdoors, take frequent breaks, spend time in cooler areas and stay hydrated..
..Heavy rainfall including from thunderstorms is possible Thursday into early Friday potentially resulting in flooding issues as the cold front stalls over Southern New England before moving south of the region Friday bringing pleasant weekend weather. Further details on this heavy rainfall for Thursday into early Friday will follow after the severe weather potential for Wednesday has passed..
..SKYWARN Self-Activation with Amateur Radio Call-Up Nets are possible to likely for Wednesday Afternoon and Evening. SKYWARN Activation with Amateur Radio Call-Up Nets are also possible Thursday into early Friday for heavy rainfall/flood potential. 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..

1.) The timing of the cold front into the area near the time of peak heating to take advantage of strong wind shear profiles.
2.) Frontal forcing, instability and wind shear to offset some unfavorable severe weather parameters.
3.) Mid-level drying during the day Wednesday if that occurs and whether moisture returns in the mid-levels during the time of peak heating.
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 Wednesday Afternoon and Evening. SKYWARN Activation with Amateur Radio Call-Up Nets are also possible Thursday into early Friday for heavy rainfall/flood potential. 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 AM Wednesday Morning. Below is the NWS Boston/Norton Heat Advisory Statement, Area Forecast Discussion, Enhanced Hazardous Weather Outlook and SPC Day-2 Convective Outlook:

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 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_20250729_1730.html

Respectfully Submitted,

Uncategorized

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