Prognostic Meteorological Discussion
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FXUS01 KWBC 240751
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
350 AM EDT THU JUL 24 2014

VALID 12Z THU JUL 24 2014 - 12Z SAT JUL 26 2014

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
THE NORTHERN PLAINS...

...TEMPERATURES WILL BE 10 TO 15 DEGREES BELOW AVERAGE OVER THE
PACIFIC NORTHWEST...

A FRONT OVER THE NORTHERN ROCKIES TO THE GREAT BASIN WILL MOVE
SLOWLY EASTWARD TO THE UPPER MISSISSIPPI VALLEY BY FRIDAY EVENING.
 MOISTURE WILL BE POOLING AHEAD OF THE BOUNDARY OVER THE NORTHERN
PLAINS TO THE UPPER MISSISSIPPI VALLEY.  AREAS OF SHOWERS AND
THUNDERSTORMS WILL DEVELOP IN THE MOIST AIR OVER THE
CENTRAL/NORTHERN PLAINS THAT WILL MOVE TO THE GREAT LAKES BY
FRIDAY EVENING.  IN ADDITION, SHOWERS AND THUNDERSTORMS WILL
DEVELOP ALONG THE U. S./CANADIAN BORDER FROM THE NORTHERN HIGH
PLAINS ON WEDNESDAY TO THE UPPER MISSISSIPPI VALLEY ON FRIDAY
MORNING.  BY FRIDAY EVENING, THE SHOWERS AND THUNDERSTORMS WILL
EXPAND SOUTHWARD ALONG THE FRONT TO PARTS OF THE MIDDLE MISSOURI
VALLEY.  ADDITIONALLY, UPPER-LEVEL ENERGY MOVING OVER THE PACIFIC
NORTHWEST WILL PRODUCE LIGHT RAIN OVER PARTS OF THE AREA THROUGH
THURSDAY EVENING.

A SECOND FRONT WILL MOVE OFF THE NORTHEAST/MID-ATLANTIC COAST ON
THURSDAY WHILE THE SOUTHERN END OF THE BOUNDARY WILL LINGER OVER
PARTS OF THE CENTRAL GULF COAST AND THE SOUTHEAST THURSDAY
AFTERNOON INTO FRIDAY EVENING.  SHOWERS AND THUNDERSTORMS
DEVELOPING ALONG THE FRONT WILL MOVE OFF THE NEW ENGLAND COAST ON
THURSDAY MORNING.  ADDITIONAL SHOWERS AND THUNDERSTORMS WILL
DEVELOP ALONG THE BOUNDARY OVER THE TENNESSEE VALLEY INTO THE
MID-ATLANTIC ON THURSDAY MOVING OFF THE MID-ATLANTIC COAST ON
FRIDAY MORNING.  SHOWERS AND THUNDERSTORMS WILL ALSO DEVELOP OVER
PARTS OF THE SOUTHEAST ON FRIDAY EVENING.

ELSEWHERE, UPPER-LEVEL ENERGY OVER THE CENTRAL GULF COAST WILL
TRIGGER SHOWERS AND THUNDERSTORMS OVER PARTS OF TEXAS AND THE GULF
COAST THROUGH FRIDAY.  FURTHERMORE, MOISTURE TRAPPED UNDERNEATH AN
UPPER-LEVEL RIDGE OVER THE SOUTHWEST/SOUTHERN ROCKIES WILL PRODUCE
AREAS OF SHOWERS AND THUNDERSTORMS OVER THE AREA ON THURSDAY AND
FRIDAY.


ZIEGENFELDER


GRAPHICS AVAILABLE AT WWW.WPC.NCEP.NOAA.GOV
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