The Weather Prediction Center

Short Range Forecast Discussion

[Abbreviations and acronyms used in this product]
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Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
415 AM EDT Wed May 25 2016

Valid 12Z Wed May 25 2016 - 12Z Fri May 27 2016

...There is a slight risk of severe thunderstorms from the
Southern Plains to the Upper/Middle Mississippi Valley and parts
of the Central/Northern Plains...

...Heavy rain possible over parts of the Southern Plains...

...Heavy rain possible over parts of the Central Plains/Middle
Mississippi Valley...

A deep upper-level trough over the western third of the country
will move eastward to the Plains/Rockies by Thursday evening. 
Under the upper-level trough, showers and thunderstorms will
develop from parts of California to the Northern Intermountain
Region/Great Basin and the Northern/Central Rockies by Wednesday
evening with daytime heating contributing to the areal extend of
the storms.  On Thursday, the showers and thunderstorms will
extend from the Northern/Central High Plains to the Great
Basin/Northern Intermountain Region with daytime heating
contributing to the areal extend.

Downstream from the upper-level trough, moisture from the Gulf of
Mexico will stream northward over the Southern Plains into the
Middle Mississippi Valley and the Upper Midwest that will extend
into the Great Lakes/Ohio Valley by Thursday evening.  Showers and
thunderstorms will develop over parts of the Plains and the
Mississippi Valley that will expand into parts of the Great
Lakes/Ohio Valley by Wednesday evening.  By Thursday morning, the
showers and thunderstorms will develop over parts of the Upper
Mississippi Valley/Upper Great Lakes southwestward into the
Southern Plains and over the Great Lakes/Ohio Valley will expand
eastward into parts of the Northern/Central Appalachians by
Thursday evening. 

In addition on Thursday, a front will develop over the Pacific
Northwest and move eastward to the Northern Intermountain Region
by Thursday evening as upper-level energy moves onshore over the
Northwest.  Rain will develop over parts of the Pacific Northwest
Coast on Thursday as the energy moves inland.  


Ziegenfelder


Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php




Last Updated: 415 AM EDT Wed May 25 2016