Severe Weather and Flash Flood Coordination Message #1 – Sunday Afternoon and Evening 7/18/21 Severe Weather & Flash Flood Potential

Hello to all…

..Another round of thunderstorms with heavy rainfall and isolated strong to severe thunderstorms for this Sunday Afternoon and Evening across interior Southern New England. Severe Weather coverage will be a bit less than yesterday but flooding and flash flooding issues will be in pockets across Western and Central Massachusetts, Northern Connecticut and parts of North Central RI. Strong to damaging winds, hail, frequent lightning and urban, poor drainage, river and stream flooding are possible in thunderstorms..
..A Flash Flood Watch has been extended across Western and Central Massachusetts, Northern Connecticut and Providence County Rhode Island through Sunday Evening for the potential of another 1-3″ of rainfall with isolated higher amounts causing additional urban, poor drainage, river and stream flooding..
..SKYWARN Self-Activation will again monitor for the severe weather, flood and flash flood potential this Sunday Afternoon and Evening. Any additional rainfall reports, wind damage reports, pictures and videos of damage and flooding can be sent as a reply to this message via our WX1BOX Facebook and Twitter feeds and through the email address pics@nsradio.org with credit given to the spotter for the report unless otherwise indicated..

Another active severe weather and significant flood/flash flood event affected portions of Western and Central Massachusetts, Northern Connecticut and Northern Rhode Island yesterday. The latest Local Storm Report and Public Information Statement from NWS Boston/Norton can be seen at the following links:

NWS Boston/Norton Local Storm Report:
https://kamala.cod.edu/ma/latest.nwus51.KBOX.html

NWS Boston/Norton Public Information Statement:
https://kamala.cod.edu/ma/latest.nous41.KBOX.html

Any additional rainfall reports, wind damage reports, pictures and videos of damage and flooding can be sent as a reply to this message via our WX1BOX Facebook and Twitter feeds and through the email address pics@nsradio.org with credit given to the spotter for the report unless otherwise indicated.

Another round of thunderstorms with heavy rainfall is likely later this Sunday Afternoon and Evening across portions of western and central New England. The severe weather threat appears to be less than Saturday, however, if more sunshine develops than expected, the severe weather potential would increase. Satellite imagery does show clearing across portions of Connecticut, Rhode Island and Southeast Massachusetts and this area possibly into South-Central Massachusetts would be the primary severe weather potential area with the Flash Flood Watch area and areas close to that watch having the potential for pockets of flooding of rivers, streams, urban and poor drainage areas. Given the past 2-3 weeks of heavy rainfall and areas hard hit from yesterday’s severe weather and flooding, if the hardest hit areas yesterday are hit again, those areas could flood even more significantly and will be monitored carefully. The headlines depict the current thinking.

SKYWARN Self-Activation will again monitor for the severe weather, flood and flash flood potential. Again, any additional rainfall reports, wind damage reports, pictures and videos of damage and flooding can be sent as a reply to this message via our WX1BOX Facebook and Twitter feeds and through the email address pics@nsradio.org with credit given to the spotter for the report unless otherwise indicated. This will be the only coordination message as we shift back into operations mode. Below is the NWS Boston/Norton Area Forecast Discussion, Flash Flood Watch Statement, Flood Warning and Flood Statement listings summary where you can choose to review those statements and the Enhanced Hazardous Weather Outlook:

NWS Boston/Norton Area Forecast Discussion:
https://kamala.cod.edu/ma/latest.fxus61.KBOX.html

NWS Boston/Norton Flash Flood Watch Statement:
https://kamala.cod.edu/ma/latest.wgus61.KBOX.html

NWS Boston/Norton Flood Warning Statements Listings:
https://kamala.cod.edu/offs/KBOX/wgus41.chunk.html

NWS Boston/Norton Flood Statement Listings:
https://kamala.cod.edu/offs/KBOX/wgus81.chunk.html

NWS Boston/Norton Enhanced Hazardous Weather Outlook:
https://www.weather.gov/box/ehwo

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)
Work Phone #: 508-346-2929 (8 AM-5 PM)
Email Address: rmacedo@rcn.com
http://ares.ema.arrl.org
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