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Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
402 PM EDT Thu Aug 06 2020

Valid Fri Aug 07 2020 - Sun Aug 09 2020

...Unsettled weather along much of the East Coast into Saturday with
locally heavy rain and flash flooding possible...

...Scattered thunderstorms in the central to northern Plains could become
severe Friday and Saturday...

...A wildfire risk remains elevated across portions of the western U.S...

A quasi-stationary front is forecast to linger across the Mid-Atlantic and
Southeast over the next couple of days, which will keep an increased risk
for thunderstorms which will obtain peak coverage during the afternoon and
evening hours. Some of the thunderstorms will be slow moving, capable of
producing very heavy rainfall over a short period of time, resulting in a
flash flood threat. The flash flood threat will be increased from portions
of the Carolinas into the northern Mid-Atlantic states where the soil
moisture is elevated due to recent heavy rainfall from Tropical Storm
Isaias.

An upper level disturbance will track eastward through southern Canada
Friday into Friday night, with a cold front following at the surface.
Ahead of the front, temperatures and dewpoints will rise into the
north-central U.S. helping to support thunderstorms, some of which could
be strong to severe. The Storm Prediction Center has a Slight Risk for
severe thunderstorms on Friday/Friday night across North Dakota into
northwestern Minnesota with immediately surrounding locations also seeing
increased risks for severe thunderstorms. Flash flooding could also occur
with these storms. The severe threat shifts southward for Saturday as the
cold front slowly advances south and east.

Across the western U.S., gusty winds and dry relative humidities will
continue conditions that are favorable for fire weather for portions of
the Intermountain West and Desert Southwest today. Fire weather risks will
remain on Friday for portions of Montana in the wake of the cold front
discussed above as well as into portions of Utah and Colorado. Meanwhile
across the Southwest, the monsoon season will remain rather inactive
through at least this upcoming weekend with the best moisture staying
south of the U.S. border.

Otto

Graphics available at:
NWS Weather Prediction Center Storm Prediction Center
United States 2 Day Forecast