Severe Weather Coordination Message #1 – Tuesday 7/14/20 Severe Weather Potential

Hello to all…

..Isolated to Scattered Strong to Severe Thunderstorms are possible to likely today across much of Massachusetts, Rhode Island, and North-Central and Northeast Connecticut except for Cape Cod and the Islands for late this Tuesday Morning through Evening, strong to damaging winds, hail, frequent lightning and heavy rainfall with the potential for urban and poor drainage flooding are the main threats and the Storm Prediction Center (SPC) has placed the region in a marginal risk for severe weather for late Tuesday Morning through Evening..
..SKYWARN Self-Activation will monitor the severe weather potential for late Tuesday Morning through Evening..

A cold pool of air in the upper level of the atmosphere associated with an upper level low will swing through Southern New England late Tuesday Morning through Tuesday Evening. This will tap into sufficient instability and destabilization from daytime heating and marginally sufficient wind shear for the development of isolated to scattered strong to severe thunderstorms in the region. Key factors will be the cold pool and cooling aloft being able to compensate for weaker forcing and triggering in the atmosphere and marginally sufficient wind shear in the atmosphere.

SKYWARN Self-Activation will monitor the severe weather potential for late Tuesday Morning through Evening. This will be the only coordination message as we shift into operations and monitoring mode. Below is the NWS Boston/Norton Area Forecast Discussion, Special Weather Statement on Severe Weather Potential, Enhanced Hazardous Weather Outlook, and SPC Day-1 Convective Outlook:

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

NWS Boston/Norton Special Weather Statement on Severe Weather Potential:
https://kamala.cod.edu/offs/KBOX/2007141350.wwus81.html

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

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 (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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