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KF5JRV > WX 21.05.17 15:03l 45 Lines 2183 Bytes #999 (0) @ USA
BID : 16048_KF5JRV
Read: GUEST
Subj: NWS USA WX Forecast 5/21
Path: IW8PGT<CX2SA<N9PMO<NS2B<KF5JRV
Sent: 170521/1356Z 16048@KF5JRV.#NWAR.AR.USA.NA BPQK6.0.13
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
433 AM EDT Sun May 21 2017
Valid 12Z Sun May 21 2017 - 12Z Tue May 23 2017
...There is a slight risk of severe thunderstorms over parts of the Lower
Rio Grande Valley...
...Heavy rain possible from portions of the Southeast to the
Central/Western Gulf Coast...
Low pressure over the Upper Mississippi Valley/Upper Great Lakes will
slowly move northward into Ontario on Monday. The associated front will
become quasi-stationary from the Lower Great Lakes to Central
Appalachians/Tennessee Valley to the Western Gulf Coast through Monday.
The system will produce showers and thunderstorms from the Upper Great
Lakes to the Ohio/Tennessee Valleys into the Lower Mississippi Valley and
Southern Plains that will move eastward to the Mid-Atlantic/Southeast to
the Central/Western Gulf Coast by Monday evening into Tuesday. An area of
showers and thunderstorms will develop over parts of the Southeast through
Monday morning. Rain will also develop over parts of the Upper
Mississippi Valley that will move into parts of the Upper Great Lakes
overnight Sunday into Monday evening.
Meanwhile, upper-level energy the Great Basin/Northern Intermountain
Region will move southeastward to the Southern Rockies by Monday evening.
Additional upper-level energy will move southward out of West-Central
Canada on Sunday evening moving to the Central Plains by Monday evening.
The energy coming out of Canada will begin to induce a front over parts of
the Middle Missouri Valley to the Southern High Plains by Monday evening.
The first area of energy will produce rain with embedded thunderstorms
over parts of the Great Basin that will expand eastward to the Central
Rockies and northward into the Northern High Plains by Sunday evening.
The rain with embedded showers/thunderstorms will extend into the Southern
High Plains overnight Sunday. Showers and thunderstorms will develop
along the developing boundary from parts of the Middle Mississippi Valley
southwestward to the Southern High Plains by Monday evening.
Ziegenfelder
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
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