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Mesoscale Discussion 1543
NWS Storm Prediction Center Norman OK
0635 PM CDT Thu Jul 21 2022

Areas affected...Parts of Maine

Concerning...Severe Thunderstorm Watch 479...

Valid 212335Z - 220030Z

The severe weather threat for Severe Thunderstorm Watch 479
continues.

SUMMARY...A localized risk of damaging gusts continues across parts
of Severe Thunderstorm Watch 479. A one hour extension of the watch
may be warranted over parts of northern Maine.

DISCUSSION...Latest radar and IR satellite data shows an overall
decrease in convective intensity across Severe Thunderstorm Watch
479, though a few loosely organized clusters/line segments capable
of damaging gusts continue spreading northeastward across parts of
Maine ahead of a cold front. Regional VWP data shows nearly 35 kt of
0-6 km bulk shear and modestly curved low-level hodographs, which
should continue to maintain this activity despite a gradual increase
in nocturnal boundary-layer stability. A local one hour extension of
Severe Thunderstorm Watch 479 could be warranted over parts of
northern Maine.

..Weinman.. 07/21/2022

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...CAR...GYX...

LAT...LON   44667033 44797089 45397084 46337031 47476944 47526878
            47246779 46626768 45816818 44976931 44667033