Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
350 AM EDT Sun Apr 22 2018
Valid 12Z Sun Apr 22 2018 - 12Z Tue Apr 24 2018
...Heavy rain possible from parts of the Ohio/Tennessee Valleys into the
...Heavy snow possible over parts of the Northern Rockies/Northern High
A storm over the Lower Mississippi Valley will slowly move into the
Tennessee Valley/Southeast by Monday evening. Showers and thunderstorms
will develop along and ahead of the associated front over the Lower
Mississippi Valley that will move eastward to the Southeast Coast into the
Tennessee Valley by Monday evening into Tuesday. Rain will also develop
over parts of the Middle Mississippi Valley into parts of the Tennessee
Valley that will expand into parts of the Ohio Valley/Southern
Appalachians and parts of the Southern Mid-Atlantic by Sunday evening.
The rain will expand into parts of the Central Appalachians and the
Mid-Atlantic by Monday evening.
Meanwhile, upper-level energy over the Pacific Northwest will move
eastward to the Northern Rockies/Northern High Plains by Monday evening
into Tuesday. The energy will produce rain and higher elevation snow over
parts of the Northern/Central Rockies overnight Sunday that will expand
into parts of the Northern/Central High Plains by Monday evening.
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php