Storm Coordination Message #2 – Wednesday Night 4/8/20-Friday 4/10/20 – Minor Coastal Flooding/Severe Weather/Strong Wind Potential

Hello to all…

..Several high tide cycles of minor coastal flooding expected over both south and east facing coastal areas late tonight through Friday Morning along with rain heavy at times and the potential for thunderstorms and possibly isolated to scattered strong to severe thunderstorms with hail and strong to damaging winds as the main threats for Thursday. Strong to damaging winds are then possible Thursday Night into Friday across much of Southern New England..
..The Storm Prediction Center (SPC) has placed portions of Southwest, South-Central and Southeast Massachusetts through Rhode Island and Connecticut in a marginal risk for severe weather Thursday. Timeframe is in the mid-morning to mid-afternoon timeframe..
..A Coastal Flood Advisory remains in effect through 8 AM Friday for Eastern Essex County, Suffolk, Eastern Norfolk Eastern Plymouth, Barnstable Counties of Massachusetts and Eastern Kent, Bristol, Washington and Newport Counties of Rhode Island for minor coastal flooding of shore roads and a few road closures at the time of multiple high tide cycles during the timeframes specified..
..SKYWARN Self-Activation will monitor conditions throughout the next 2-day period around the various high tide cycles for minor coastal flooding as well as for rainfall reports over the 2 day period, any strong to severe thunderstorms that develop on Thursday and general strong to damaging wind potential Thursday Night into Friday..

A coastal storm with a prolonged period of the unsettled weather including rainfall, several high tide cycles of minor coastal flooding over portions of the south and east facing coastal areas and the potential for stronger thunderstorms including isolated to scattered strong to severe thunderstorms for Thursday and strong to damaging winds Thursday Night into Friday. The headlines depict the current thinking. Key factors for this event include:

1.) Ability for stronger convection and thunderstorms to develop on Thursday in a low instability, high shear environment.
2.) Ability for thunderstorms if they develop and become strong enough to break the inversion and transport stronger winds down to the surface.
3.) How strong winds will be Thursday Night and Friday as the storm system moves out of the region.

SKYWARN Self-Activation will monitor conditions throughout the next 2-day period around the various high tide cycles for minor coastal flooding as well as for rainfall reports over the 2 day period and any strong to severe thunderstorms that develop particularly on Thursday. Another coordination message will be posted by 10 AM Thursday Morning. Below is the NWS Boston/Norton Coastal Flood Advisory Statement, Hazardous Weather Outlook, Enhanced Hazardous Weather Outlook and the Storm Prediction Center (SPC) Day-2 Convective Outlook:

NWS Boston/Norton Coastal Flood Advisory Statement:
https://kamala.cod.edu/ma/latest.whus41.KBOX.html

NWS Boston/Norton Hazardous Weather Outlook:
https://kamala.cod.edu/ma/latest.flus41.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/2020/day2otlk_20200408_1730.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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