Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
331 AM EDT Tue Aug 19 2014
Valid 12Z Tue Aug 19 2014 - 12Z Thu Aug 21 2014
...Slight risk of severe thunderstorms over parts of the Western Ohio
Valley and the Great Lakes...
...Heavy rain possible over parts of the Western Ohio Valley and parts of
the Central/Northern Plains...
Upper-level low over the Upper Great Lakes will move to Michigan while
weakening by Wednesday evening. Showers and thunderstorms will develop
along and ahead of the associated front from the Upper Great Lakes to the
Middle Mississippi Valley that will slowly move to the Lower Great
Lakes/Mid-Atlantic and the Ohio Valley by Wednesday. In addition, an
upper-level impulse over the Southeast will move off the coast by
Wednesday morning. The energy will aid in the development of showers and
thunderstorms over parts of the Mid-Atlantic Coast and the Southeast on
Meanwhile, upper-level energy over the Northern Intermountain Region will
move eastward to the Northern Plains by Wednesday evening. The energy
will move into moist air over the Northern Plains on Wednesday producing
showers and thunderstorms over the Northern High Plains/Northern Plains.
Additionally, an upper-level low along the Central California Coast along
with monsoonal moisture will produce showers and thunderstorms over the
Southwest into the Central Rockies/Great Basin on Tuesday. The area of
showers and thunderstorms will decrease over the Southwest into the
Central Rockies on Wednesday.
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php