Prognostic Meteorological Discussion
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FXUS01 KWBC 260811
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
410 AM EDT SUN APR 26 2015

VALID 12Z SUN APR 26 2015 - 12Z TUE APR 28 2015

...THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS FOR PARTS OF
THE LOWER MISSISSIPPI VALLEY AND SOUTH PLAINS...

...HEAVY RAIN POSSIBLE FOR PARTS OF THE SOUTHERN/CENTRAL HIGH
PLAINS/SOUTHERN PLAINS AND THE LOWER MISSISSIPPI VALLEY...

...TEMPERATURES BE 10 TO 15 DEGREES BELOW AVERAGE FOR PARTS OF THE
MID-ATLANTIC WESTWARD TO THE MIDDLE MISSISSIPPI VALLEY AND OVER
PARTS OF THE ROCKIES...

LOW PRESSURE OVER THE CENTRAL ROCKIES WILL MOVE SOUTHEASTWARD TO
THE WESTERN GULF COAST BY MONDAY EVENING.  THE SYSTEM WILL PRODUCE
HIGHER ELEVATION SNOW AND LOWER ELEVATION RAIN OVER PARTS OF THE
NORTHERN/CENTRAL ROCKIES/GREAT BASIN THAT WILL BEGIN TO WANE BY
MONDAY MORNING, WHILE AREAS OF RAIN AND SNOW WILL LINGER OVER
PARTS OF THE CENTRAL/SOUTHERN ROCKIES BY MONDAY EVENING.  SHOWERS
AND THUNDERSTORMS WILL DEVELOP OVER PARTS OF THE CENTRAL/SOUTHERN
HIGH PLAINS AND THE SOUTHWEST/SOUTHERN ROCKIES THAT WILL MOVE
EASTWARD TO THE SOUTHERN PLAINS BY SUNDAY EVENING AND INTO THE
LOWER MISSISSIPPI VALLEY/WESTERN GULF COAST BY MONDAY EVENING.
RAIN WILL DEVELOP OVER PARTS OF THE SOUTHERN HIGH PLAINS ON MONDAY
MORNING MOVING EASTWARD TO THE SOUTHERN PLAINS BY MONDAY EVENING.

MEANWHILE, A QUASI-STATIONARY FRONT OVER THE CAROLINAS WESTWARD TO
THE SOUTHERN PLAINS HAS A WAVE OF LOW PRESSURE OVER THE SOUTHERN
APPALACHIANS THAT WILL MOVE OFF THE SOUTHEAST COAST BY LATE SUNDAY
NIGHT.  RAIN WILL DEVELOP OVER PARTS OF THE SOUTHERN
MID-ATLANTIC/SOUTHERN APPALACHIANS ON SUNDAY, MOVING OFF THE
SOUTHEAST COAST BY LATE SUNDAY NIGHT.  AN AREA OF SHOWERS AND
THUNDERSTORMS WILL ALSO DEVELOP OVER PARTS OF THE CAROLINAS THAT
WILL MOVE SOUTHEASTWARD OFF THE SOUTHEAST COAST BY LATE SUNDAY
NIGHT, TOO.  IN ADDITION, SHOWER AND THUNDERSTORMS WILL LINGER
NEAR THE FRONT OVER PARTS OF THE EASTERN GULF COAST/SOUTHEAST
COAST ON MONDAY.

A BOUNDARY OVER THE NORTHERN PLAINS WILL MOVE VERY SLOWLY EASTWARD
TO PARTS OF THE UPPER MISSISSIPPI VALLEY/NORTHERN PLAINS BY
MONDAY.  RAIN WILL DEVELOP WITH THE SYSTEM OVER PARTS OF THE
NORTHERN PLAINS ON SUNDAY THAT WILL ADVANCE TO PARTS OF THE UPPER
MISSISSIPPI VALLEY/NORTHERN PLAINS BY MONDAY EVENING.  ELSEWHERE,
FRONT NEAR THE PACIFIC NORTHWEST COAST WILL DISSIPATE AS THE
ENERGY MOVES INTO WESTERN CANADA.  RAIN WILL TOUCH THE NORTHWEST
COAST ON SUNDAY MOVING INTO CANADA BY MONDAY.


ZIEGENFELDER


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





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