Severe Weather Coordination Message #2 – Saturday 4/1/23 Severe Weather Potential

Hello to all…

..Isolated to Scattered Strong to Severe Thunderstorms are possible in interior Southern New England for late Saturday Afternoon and Evening as a strong cold front and storm system that has brought significant severe weather to the Midwest and Southeast United States sweeps through our region. Strong to damaging winds, hail and heavy downpours leading to brief urban and poor drainage flooding are the main threats..
..The Storm Prediction Center (SPC) has placed much of Connecticut, Western, and Central Massachusetts and portions of Rhode Island in a slight risk for severe weather with the rest of Southern New England in a marginal risk for severe weather. The current threat timeframe is adjusted slightly to between 7-11 PM EDT Saturday late afternoon and evening..
..SKYWARN Self-Activation will monitor the severe weather potential for later Saturday Afternoon and Evening..

A strong cold front and storm system responsible for the major severe weather outbreak in the Midwest and Southeast United States will have the potential to bring some isolated to scattered strong to severe thunderstorms to Southern New England. The headlines depict the current thinking. Key factors remain:

1.) The amount of clearing to allow for destabilization of the atmosphere to tap into other favorable instability parameters and very strong wind fields.
2.) Ability for strong wind fields and other favorable instability parameters to compensate if there is a lack of heating for destabilization or timing of the cold front past the time of peak heating.
3.) The timing of the cold front into Southern New England to act as a trigger for strong to severe thunderstorms in addition to factors 1 and 2.

SKYWARN Self-Activation will monitor the severe weather potential for later Saturday 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:
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
Home/Data #: (508) 997-4503
Email Address: rmacedo@rcn.com
https://ares.ema.arrl.org
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