Storm Coordination Message #1 – Friday Night 3/6/20-Saturday Morning 3/7/20 High Wind/Light Snow Ocean Storm Potential

Hello to all…

..Offshore Ocean Storm to bring strong to damaging winds to Southeast New England and the potential for light snowfall accumulations particularly over Cape Cod and the Islands Friday Night into Saturday Morning. Westward wobble in the guidance being monitored for further trends west and greater impact to the region..
..A High Wind Watch is in effect from Friday Evening through Saturday Morning for Cape Cod and the Islands for sustained winds of 30-40 MPH with gusts to 60 MPH possible. These winds would cause isolated to scattered pockets of tree and wire damage and isolated to scattered power outages..
..A Wind Advisory is in effect from 9 PM Friday Evening through 10 AM Saturday Morning for Southern and Eastern Plymouth Counties of Massachusetts for sustained winds of 20-30 MPH with gusts to 50 MPH and isolated higher gusts possible. These winds will cause isolated pockets of tree and wire damage and isolated power outages..
..At this time, snow accumulations are generally expected to be around 1″ over Cape Cod and 1-2″ over the Islands with a coating or trace of snow elsewhere in Southeast Massachusetts and Rhode Island but trends will be monitored for higher accumulations if the westward wobble in the guidance becomes a trend to monitor..
..SKYWARN Self-Activation will monitor the ocean storm strong to damaging wind and snow potential for Southeast New England Friday Night into Saturday Morning..

An offshore ocean storm will affect Southeast New England Friday Night into Saturday Morning with strong to damaging winds and some light snow. The headlines depict current thinking. There are some key factors to consider concerning the recent westward wobble in the model guidance over the last couple of model runs:

1.) If the western wobble continues, it would put Southeast New England at a greater risk for stronger and more damaging winds and higher accumulating snow. In particular, the Canadian model guidance is hinting at a heavier scenario and has not wavered from its solutions over the last several runs. This will bear watching.
2.) If the western trend in the guidance stops and stays roughly the same track, the current scenario in the weather headlines will be the outcomes for this storm.
3.) A trend further east would mean less wind and little to no snow in the region.

SKYWARN Self-Activation will monitor the ocean storm strong to damaging wind and snow potential for Southeast New England Friday Night into Saturday Morning. Another coordination message will be posted by 10 AM Friday Morning. Below is the NWS Boston/Norton High Wind Watch/Wind Advisory Statement, Hazardous Weather Outlok, Enhanced Hazardous Weather Outlook and snow and ice maps:

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

NWS Boston/Norton Snow and Ice Maps:
https://www.weather.gov/box/winter

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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