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

Hello to all…

..Ocean Storm System on track to 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 Night 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 Warning is now in effect from 5 AM Friday Morning to 8 PM 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. These winds will have the potential to bring scattered pockets of tree and wire damage and scattered power outages..
..A Wind Advisory is now in effect from 5 AM Friday Morning to 11 PM Friday Night for Eastern Essex, Eastern and Southern Plymouth Counties of Massachusetts for sustained winds of 20-30 MPH with gusts to 50 MPH and isolated higher gusts possible. These winds will have the potential to bring isolated to scattered pockets of tree and wire damage and isolated to scattered power outages.
..Areas of East Coastal and South Coastal Massachusetts and Blue Hill Milton, Mass could see wind gusts of 40-45 MPH from this storm system..
..A Coastal Flood Advisory is in effect for Nantucket Island through 10 PM Thursday Evening for minor coastal flooding of shore roads at the time of high tide..
..A Coastal Flood Warning is now in effect for East Coastal Massachusetts, Cape Cod and Islands from 6-10 AM 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 Thursday Night into Friday..

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. Right now, the track is going to be near or just southeast of the 40 North/70 West Benchmark which would support the current thinking.
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 but right now the current thinking is for 1″ or more along parts of East Coastal Massachusetts, Cape Cod and the Islands.

SKYWARN Self-Activation will monitor for strong to damaging wind, coastal flood potential and for any rainfall amounts 1″ or more. This will be the last coordination message as we shift into self-activation operations mode unless a significant change occurs and time allows for an update. Below is the NWS Boston/Norton High Wind Warning/Wind Advisory Statement, Coastal Flood Warning/Advisory Statement, Hazardous Weather Outlook and Enhanced Hazardous Weather Outlook:

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

NWS Boston/Norton Coastal Flood Warning/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

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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