Severe Weather Coordination Message #2 – Sunday PM & Evening 7/25/21 Severe Weather Potential

Hello to all…

..Isolated to Scattered Strong to Severe Thunderstorms remain possible over Western Massachusetts and Western Connecticut Sunday Afternoon and Evening. Strong to damaging winds, hail, frequent lightning and heavy downpours with urban and poor drainage flooding are the main threats. The Storm Prediction Center (SPC) has continued Western Massachusetts and Western Connecticut in a marginal risk for severe weather with the timeframe between 3-8 PM Sunday..
..SKYWARN Self-Activation will monitor the severe weather potential for this Sunday Afternoon and Evening..

Another round of isolated to scattered strong to severe thunderstorms are possible for Sunday Afternoon and Evening as a warm front moves through Sunday Morning with the cold front sweeping into the area late Sunday Afternoon and Evening. The headlines depict the current thinking which is little changed from yesterday. Key factors include:

1.) Clearing after morning to early afternoon showers
2.) Frontal position and timing to the area presuming sufficient clearing for destabilization
3.) Amount of drying in the atmosphere as too much drying in the atmosphere could limit thunderstorm development and strength but if the drying is not too significant, the drying could enhance the strong wind potential

SKYWARN Self-Activation will monitor the severe weather potential for this Sunday 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:

NWS Boston/Norton Enhanced Hazardous Weather Outlook:

SPC Day-1 Convective Outlook:

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:
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