Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
436 AM EDT Fri Apr 24 2015
Valid 12Z Fri Apr 24 2015 - 12Z Sun Apr 26 2015
...There is a slight risk of severe thunderstorms for Central/Southern
Plains and the Lower Mississippi Valley...
...Heavy rain possible for parts of the Lower Mississippi Valley and the
...Temperatures will be 10 to 15 degrees below average over parts of the
Northeast into the Mid-Atlantic and over to the Upper Great Lakes...
A storm over the Central High Plains will move eastward to the Middle
Mississippi/Western Ohio Valley by Saturday evening. A plume of moisture
from the Gulf of Mexico will stream northward to the Plain and the
Mississippi Valley by Friday evening and move eastward to Mid-Atlantic by
Saturday evening. Showers and thunderstorms will develop over parts of
the Plains and Mississippi Valley that will move to part of the Ohio
Valley to the Southeast by Saturday. Rain will develop over parts of the
Upper Mississippi Valley/Northern Plains and move to the Ohio Valley by
Saturday morning moving to the Mid-Atlantic Coast by Saturday evening.
Meanwhile, a front over the Northern Rockies to the Great Basin/Northern
California along with associated upper-level energy will move eastward to
the Northern High Plains/Great Basin while dissipating. Upper-level
energy over the Pacific Northwest will be quasi-stationary through
Saturday while additional upper-level energy over the North Pacific will
move southeastward to Southern California by Saturday evening. The storms
will produce higher elevation snow and lower elevation rain over parts of
the Pacific Northwest to the Northern Rockies that will expand southward
into Central California and eastward into parts of the Central Rockies by
Saturday. In the meantime, showers and thunderstorms will develop over
parts of the Southern Rockies/Southwest that will expand in areal coverage
into parts of Central Rockies/Central High Plains by Saturday evening. In
addition, rain will develop over the Northern High Plains early Saturday
morning into Saturday evening.
Elsewhere, an upper-level low over North New England will slowly inch
eastward over the Gulf of Maine by Saturday. The energy will aid in
producing areas of rain and snow over parts of Northern New England
through Saturday evening.
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php