URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 600
NWS Storm Prediction Center Norman OK
220 PM EDT Mon Aug 19 2019
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northeastern Connecticut
Much of Massachusetts
Extreme southern Maine
Southeastern New Hampshire
Rhode Island
Coastal Waters
* Effective this Monday afternoon and evening from 220 PM until
800 PM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1 inch in diameter possible
SUMMARY...Scattered thunderstorms will form and spread eastward
through the afternoon in advance of a surface cold front. The storm
environment ahead of the front will favor multicell clusters capable
of producing damaging winds and marginally severe hail through the
afternoon.
The severe thunderstorm watch area is approximately along and 45
statute miles east and west of a line from 20 miles west northwest
of Portland ME to 25 miles southeast of Windsor Locks CT. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU0).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.
&&
AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
27025.