Storm Coordination Message #1 – Thursday 4/2/20-Friday 4/3/20 Ocean Storm Potential

Hello to all…

..Ocean Storm System will retrograde back to the 40 North/70 West Benchmark bringing with it rain heavy at times Thursday into Friday Morning, strong to damaging winds to East Coastal and Southeast Coastal New England Thursday Night into Friday Night and the potential for minor coastal flooding at the time of high tide, Thursday Morning for Nantucket Island and minor to moderate coastal flooding at the high tide Friday Morning for East Coastal Massachusetts, Cape Cod and the Islands..
..A High Wind Watch is now in effect from Friday Morning to late Friday Night for Cape Cod and the Islands for sustained winds of 25-35 MPH with gusts to 60 MPH and isolated higher gusts possible. Other parts of East and Southeast Coastal New England may require wind advisories in future updates. These winds will cause isolated to scattered pockets of tree and wire damage and isolated power outages..
..A Coastal Flood Advisory is in effect for Nantucket Island from 6 AM to 10 AM Thursday for minor coastal flooding of shore roads at the time of high tide..
..A Coastal Flood Watch is in effect for East Coastal Massachusetts, Cape Cod and Islands for Friday Morning for minor to moderate coastal flooding of shore roads at the time of high tide..
..SKYWARN Self-Activation will monitor for strong to damaging wind, coastal flood potential and for any rainfall amounts 1″ or more..

A strong ocean storm will track south and east of New England but then be blocked from passing complete out to sea and retrograde and loop around the 40 North/70 West benchmark. The headlines depict the current thinking. Key factors for this storm include:

1.) The track of the storm system and if gets near or inside the 40 North/70 West benchmark. That will determine the extent of the strong to damaging winds and coastal flooding in East Coastal and Southeast coastal Massachusetts.
2.) Predominantly rain is expected but some wet snow could mix in depending on how heavy the precipitation is and if it allows for the column to cool sufficiently for wet snow to occur. At this time, little to no snow accumulation is expected.
3.) Rainfall of 1″ or more could occur particularly in Eastern New England. Somewhat higher amounts could occur if the track is closer to the coast then current thinking.

SKYWARN Self-Activation will monitor for strong to damaging wind, coastal flood potential and for any rainfall amounts 1″ or more. Another coordination message will be posted by 10 AM Thursday Morning. Below is the NWS Boston/Norton High Wind Watch Statement, Coastal Flood Advisory/Watch Statement, Hazardous Weather Outlook and Enhanced Hazardous Weather Outlook:

NWS Boston/Norton High Wind Watch Statement:
https://kamala.cod.edu/ma/latest.wwus71.KBOX.html

NWS Boston/Norton Coastal Flood Advisory/Watch 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

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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