MassEMA Update on Rain and Wind


The National Weather Service has issued an updated forecast for today’s storm (below and attached) which calls for rain (up to 3” in some areas) and potential for flooding, strong and potentially damaging winds (gusts to 65 MPH in the southeast), and pockets of minor coastal flooding along the south coast.



What / Where / When ... 
•    Periods of heavy rain, potential for flash flooding ... FLASH FLOOD WATCH in effect (through late tonight)
o    For all of S New England, especially S&E areas.
o    Rain continues to overspread this morning
o    Forecast 1 to 2 inches of rainfall, locally higher amounts. 
o    Lingering snow and ice melt will add to this issue, along with any clogged drains.  
o    Snow cover and/or hardened ground, any and all rain likely to runoff. 
o    Urban / poor drainage flooding, potential for flooded basements.
o    Minor river flooding possible.
•    Strong to damaging winds, potential for downed limbs, trees, power outages

o    HIGH WIND WARNING for SE-coastal MA & RI (9 am to 7 pm).
o    WIND ADVISORY for E-coastal MA & N RI (9 am to 5 pm).
o    Strongest mid morning into afternoon, gusts up to 60 mph.
o    For all of Southern New England especially S&E areas of MA & CT, as well as all of RI.
•    Gales winds and high seas ... GALE WARNINGS posted on all waters (1 am to 9 pm)
o    Strongest winds Thursday morning into Thursday afternoon; gusts up to 50 knots.
o    Highest seas Thursday afternoon; seas up to 20 feet.
•    Minor Coastal Flooding Possible
o    South Coastal RI and MA
o    Around time of high tide (10AM/11AM)
o    Pockets of minor coastal flooding/splashover possible.
o    Coastal Flood Statement issued for RI/S coastal MA.

Uncertainty ... 
•    We remain confident concerning the heavy rain and flooding threat.
•    However we have lower confidence concerning the exact strength of strong to damaging winds. 
o    Whether we see 40 to 50 mph gusts versus 50 to 60 mph gusts in those areas under wind-related headlines.   The risk increases in thunderstorms.


Watches, Warnings and Advisories:

High Wind Warning 
Issued: January 24 at 4:09AM EST 
Expiring: January 24 at 7:00PM EST 
Urgency: Expected
Status: Actual
Areas affected: Barnstable; Dukes; Eastern Plymouth; Nantucket; Southern Bristol; Southern Plymouth; Western Plymouth


Flash Flood Watch 
Issued: January 24 at 4:07AM EST 
Expiring: January 25 at 1:00AM EST 
Urgency: Expected
Status: Actual
Areas affected: Barnstable; Central Middlesex County; Eastern Essex; Eastern Franklin; Eastern Hampden; Eastern Hampshire; Eastern Norfolk; Eastern Plymouth; Northern Bristol; Northern Worcester; Northwest Middlesex County; Southeast Middlesex; Southern Bristol; Southern Plymouth; Southern Worcester; Suffolk; Western Essex; Western Franklin; Western Hampden; Western Hampshire; Western Norfolk; Western Plymouth


Coastal Flood Advisory 
Issued: January 24 at 4:03AM EST 
Expiring: January 24 at 2:00PM EST 
Urgency: Expected
Status: Actual
Areas affected: Barnstable; Southern Bristol; Southern Plymouth