Prognostic Meteorological Discussion
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000
FXUS01 KWBC 242003
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
403 PM EDT WED MAY 24 2017

VALID 00Z THU MAY 25 2017 - 00Z SAT MAY 27 2017

...THUNDERSTORMS EXPECTED ACROSS THE SOUTHEAST AND CAROLINAS...

...PRECIPITATION EXPECTED IN THE WEST AND CENTRAL PLAINS...

...COOLER TEMPERATURES WILL CONTINUE TO PREVAIL THE EASTERN U.S.
WITH WARMER WEATHER EXPECTED FOR THE WEST AND PLAINS...


AN UPPER LOW CONTINUES TO DIG OVER THE SOUTHEAST WHILE A STRONG
COLD FRONT WILL MOVE ACROSS THE SOUTHEAST, FLORIDA, AND THE
CAROLINAS.  COPIOUS AMOUNTS OF MOISTURE WILL STREAM OVER NORTHERN
FLORIDA AND SOUTHERN GEORGIA WHILE THE COLD FRONT WILL ACT AS A
FOCAL POINT TO SET OFF CONVECTION.  CONSEQUENTLY, HEAVY RAIN WILL
IMPACT THESE REGIONS AS THE COLD FRONT PUSHES SOUTH AND EAST.  BY
EARLY THURSDAY MORNING, HEAVY RAINFALL WILL SHIFT TOWARD CENTRAL
FLORIDA AHEAD OF THE COLD FRONT AND SLOWLY MOVES TOWARD SOUTH
FLORIDA. AS THE FRONT STALLS ON FRIDAY MORNING IN SOUTH FLORIDA,
SHOWERS AND THUNDERSTORMS WILL LINGER IN THIS REGION AND THE
FLORIDA KEYS.

THE PRIMARY LOW FOR THE AFOREMENTIONED COLD FRONT WILL PROGRESS
NORTHEAST IN THE OHIO VALLEY AND WILL APPROACH THE MID-ATLANTIC
AND NORTHEAST BY TONIGHT.  PRECIPITATION WILL INCREASE IN THESE
AREAS BY LATE TONIGHT AND CONTINUE FOR THURSDAY. ANOTHER LOW WILL
FORM IN DELMARVA ON THURSDAY MORNING AND TAKE OVER WHILE SLIDING
ALONG THE NEW ENGLAND COAST.  THIS WILL CAUSE HEAVY RAINFALL
THROUGHOUT THURSDAY AND FRIDAY THROUGHOUT THE NEW ENGLAND AREA;
EXPECT THE HEAVIER RAINFALL TO TAPER OFF BEGINNING FRIDAY NIGHT.
OVERALL, FLASH FLOODING WILL BE A CONCERN FOR THE CENTRAL AND
SOUTHERN APPALACHIANS AS OROGRAPHICS WILL ENHANCE PRECIPITATION
ALONG THESE MOUNTAINS.

ANOTHER UPPER LEVEL LOW WILL MOVE ACROSS THE INTERMOUNTAIN WEST
AND TOWARD THE PLAINS TONIGHT AND INTO THURSDAY.  A SURFACE FRONT
WILL MOVE THROUGH THE INTERMOUNTAIN WEST; HOWEVER, MOISTURE WILL
BE LIMITED SO NOT MUCH PRECIPITATION IS EXPECTED.  ONCE THE FRONT
MOVES INTO THE PLAINS, SHOWERS WILL MOVE ALONG AND AHEAD OF THE
BOUNDARY.  PRECIPITATION WILL BEGIN TO INCREASE IN THE CENTRAL
PLAINS AND INTO THE CENTRAL ROCKIES ON THURSDAY AND WILL LINGER IN
THE WEST AS THE FRONT STALLS FROM THE CENTRAL BASIN TO THE FRONT
RANGE OF COLORADO.  THE HEAVIEST RAINFALL IS EXPECTED ACROSS
NORTHWEST KANSAS INTO THE BEGINNING OF THE WEEKEND.

COOLER TEMPERATURES WILL CONTINUE ACROSS THE EAST COAST WITH
WARMER TEMPERATURES IN THE WESTERN U.S.  BY THURSDAY, COOLER
TEMPERATURES ARE EXPECTED IN THE INTERMOUNTAIN WEST/CENTRAL BASIN
AS PRECIPITATION INCREASES IN THIS AREA AND WARMER TEMPERATURES
WILL SHIFT TO THE SOUTHERN PLAINS.

REINHART


GRAPHICS AVAILABLE AT WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_WBG.PHP

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