Severe Weather Coordination Message #1 – Wednesday 5/26/21 Severe Weather Potential

Hello to all…

..Isolated to Scattered Strong to Severe Thunderstorms are possible Wednesday Afternoon and Evening between 2-8 PM. Strong to damaging winds, hail, frequent lightning and heavy rainfall with urban and poor drainage flooding are the main threats. The Storm Prediction Center (SPC) has placed Western Massachusetts and Northwest Connecticut in a slight risk for severe weather and North-Central Connecticut, Northwest Rhode Island and Central and Northeast Massachusetts in a marginal risk for severe weather..
..SKYWARN Self-Activation will monitor the severe weather potential for Wednesday Afternoon and Evening..

Wednesday will feature warm and humid conditions as winds turn to the southwest with a pre-frontal trough and cold front moving into Southern New England Wednesday Afternoon and Wednesday Night. This will set the stage for isolated to scattered strong to severe thunderstorms in portions of Western and Central New England. The headlines depict the current thinking and conditions do look a bit more favorable than we saw on Sunday where no strong to severe thunderstorms developed. Key factors include:

1.) Timing of the cold front through portions of Southern New England.
2.) Amount of instability in the region with sunshine allowing for destabilization.
3.) Wind shear profiles will be favorable for some level of organization to any strong to severe thunderstorms that can develop with the possibility for rotating storms and this aspect will be monitored.

SKYWARN Self-Activation will monitor the severe weather potential for Wednesday Afternoon and Evening. Another coordination message will be posted by 11 PM Tuesday Evening. 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://kamala.cod.edu/ma/latest.fxus61.KBOX.html

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

SPC Day-2 Convective Outlook:
https://www.spc.noaa.gov/products/outlook/archive/2021/day2otlk_20210525_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)
Work Phone #: 508-346-2929 (8 AM-5 PM)
Email Address: rmacedo@rcn.com
http://ares.ema.arrl.org
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