Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
358 PM EDT Fri Jun 22 2018

Valid Sat Jun 23 2018 - Mon Jun 25 2018

...Severe thunderstorm potential will be greatest across portions of the
central and southern Plains throughout the weekend...

...Flash flooding concerns will lessen across the East beginning Saturday
while they remain across portions of the Plains and lower Mississippi

...Abundant heat in store for California and the Desert Southwest while
fire weather concerns loom over the Four Corners region...

A long-standing frontal boundary extending from the Mid-Atlantic region
into the southern Plains will be a significant factor in the weather
across much of the lower 48 through the upcoming weekend. The front will
separate hot and humid conditions to the south from cooler than average to
average temperatures to its north.

Flash flood potential will linger across northern Indiana, central Ohio
into eastern Virginia through late tonight. This region is out ahead of an
upper level disturbance over the Ohio valley with scattered showers and
thunderstorms forecast to spread east-northeastward into the northeast for
Saturday, but with a reduced flash flood and severe thunderstorm risk. The
greater potential for severe storms...via the Storm Prediction
Center...will be across the southern and central High Plains this evening,
and into northern Texas/eastern Oklahoma and the Ozarks for Saturday, out
ahead of an upper level disturbance. It is here across the Plains and
South that a better combination of wind shear and instability will be
present to help support severe weather potential. Yet another upper level
wave will move into the central Plains on Sunday possibly helping set the
stage for another round of severe storms. Any severe storms that develop
will have the possibility of producing torrential downpours with flash
flooding, focused generally from eastern Colorado and Kansas into the
lower Mississippi valley over the weekend.

Across the West, upper level ridging will keep the region hot and dry with
no rain in the forecast. Excessive Heat Warnings and Heat Advisories are
in effect from the Sacramento/San Joaquin valley of California into the
Desert Southwest, while Red Flag Warnings in the vicinity of the Four
Corners will keep the focus on increased threats of wildfires given the
added factor of gusty winds.


Graphics available at
Storm Prediction Center United States 2 Day Forecast