Storm Coordination Message #1 – Two Potential Storm Systems – Thursday 2/6/20-Friday 2/7/20

Hello to all…

..Two storm systems to affect Southern New England over the next 2-2.5 days. One storm system to affect the region late Tonight into Thursday Afternoon and another stronger system will affect the region Thursday Night into Friday. The first storm system will bring a light wintry mix and a slippery Thursday Morning commute to much of the region and the second storm system will bring heavy rain to much of Southern New England but portions of Northern Massachusetts especially in the higher elevations could see icing from freezing rain if the temperature remains below freezing followed by a changeover to snow before the storm moves out of the region..
..A Winter Weather Advisory is in effect from 1 AM to 10 PM Thursday for Western Franklin and Western Hampshire Counties of Massachusetts for up to 3 inches of snow and up to one tenth of an inch of ice with isolated higher icing amounts possible in the higher elevations..
..A Winter Weather Advisory is in effect from 1 AM to 7 PM Thursday for Eastern Franklin, Northern Worcester and Northern Middlesex Counties of Massachusetts for up to 2 inches of snow and up to one tenth inch of ice with isolated higher icing amounts possible in the higher elevations..
..A Winter Weather Advisory is in effect from 1 AM to 1 PM Thursday for Northern Connecticut, Central and Southeast Middlesex, Essex, Eastern Hampshire, Hampden, Southern Worcester, Southern Worcester Norfolk and Suffolk Counties of Massachusetts and Providence and Kent Counties of Rhode Island for up to 1″ of snow except up to 2″ of snow in northern and western most parts of the advisory areas and up to one tenth inch of ice..
..A Winter Weather Advisory is in effect from 1 AM to 9 AM Thursday for North-Central Bristol and North-Central Plymouth Counties of Massachusetts for up to 1 inch of snow and a light glaze of ice..
..Heavy rain of 1.5-2.5″ with isolated amounts to 3″ is expected with the second storm system Thursday Night into Friday across central and eastern New England. Across Northern Massachusetts, this area will need to be monitored for freezing rain and icing potential if temperatures stay at or below freezing. Strong winds may occur over the marine areas with wind gusts possibly up to 40 MPH along the immediate coast..
..SKYWARN Self-Activation will monitor the two storm systems for Thursday and Friday. Ops at NWS will most likely not be needed but will monitor closely for the second storm system..

Two storm systems will be affecting the region over the next 2 days. One will bring a wintry mix and slower morning commute on Thursday Morning. The second storm system will be a stronger system with heavy rain and the possibility of icing and a changeover to snow in Northern Massachusetts and perhaps wind gusts to 40 MPH at the coast line. The headlines cover the current thinking well. Key factors include:

1.) The precipitation type during the morning commute for the Winter Weather Advisory area as even light accumulations of sleet and freezing rain will cause slick conditions. The morning commute could be slow especially across interior Southern New England.
2.) The precipitation type for later Thursday Night and Friday across Northern Massachusetts. If temperatures remain below freezing, this could increase the icing potential during this second storm. This will be monitored closely.
3.) Heavy rainfall and any urban/poor drainage flooding concerns across Southern New England with the second storm system.
4.) Strong winds at the coastline and any thunderstorms that could bring strong winds down to the surface.

SKYWARN Self-Activation will monitor the two storm systems for Thursday and Friday. Ops at NWS will most likely not be needed but will monitor closely for the second storm system. Another coordination message will be posted by 11 AM Thursday Morning and it will likely be more focused on the second storm system for Thursday Night into Friday. Below is the NWS Boston/Norton Winter Advisory Statement, Hazardous Weather Outlook, Enhanced Hazardous Weather Outlook and snow and ice maps:

NWS Boston/Norton Winter Weather Advisory Statement:
https://kamala.cod.edu/ma/latest.wwus41.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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