Prognostic Meteorological Discussion
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952
FXUS01 KWBC 301940
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
339 PM EDT SAT APR 30 2016

VALID 00Z SUN MAY 01 2016 - 00Z TUE MAY 03 2016

...SEVERE THUNDERSTORMS POSSIBLE OVER PARTS OF THE LOWER/MIDDLE
MISSISSIPPI VALLEY...

...HEAVY RAIN POSSIBLE OVER THE LOWER MISSISSIPPI VALLEY AND
CENTRAL APPALACHIANS...

...SNOW OVER PARTS OF THE CENTRAL ROCKIES AND CENTRAL HIGH PLAINS
...

A STABLE UPPER LEVEL PATTERN WILL LEAD TO SLOW EASTWARD
PROGRESSION OF THE LARGE STORM SYSTEM AFFECTING SEVERAL REGIONS OF
THE NATION. THE COLD FRONT ACROSS THE CENTRAL U.S. WILL LURCH
EASTWARD AND AND EVEN BECOME STATIONARY FOR A BRIEF TIME. AHEAD OF
THE FRONT, SOUTHWESTERLY FLOW IS TRANSPORTING A WARM AND MOIST AIR
MASS NORTHWARD FROM THE GULF COAST INTO THE OHIO VALLEY AND
EVENTUALLY INTO THE MID ATLANTIC. SHOWERS AND THUNDERSTORMS ARE
EXPECTED TO AFFECT AREAS ALONG AND AHEAD OF THE FRONT AS IT PUSHES
ACROSS THE EASTERN U.S. LOCALLY HEAVY RAINFALL COULD LEAD TO FLASH
FLOODING ACROSS PORTIONS OF THE LOWER MISSISSIPPI VALLEY, EASTERN
OHIO VALLEY, AND THE CENTRAL APPALACHIANS.  PORTIONS OF THE
CENTRAL AND LOWER MISSISSIPPI VALLEY COULD SEE SEVERE
THUNDERSTORMS TODAY.

FURTHER WEST, MOISTURE WRAPPING BACK AROUND THE SURFACE LOW OVER
THE CENTRAL PLAINS WILL BRING SNOW TO PORTIONS OF THE CENTRAL HIGH
PLAINS. AS THE SURFACE LOW PULLS OFF TO THE EAST THE SNOW WILL
TAPER OFF TOMORROW MORNING. AN UPPER LEVEL LOW DRIVING
SOUTHEASTWARD OVER THE SOUTHWEST TODAY WILL GENERATE RAIN SHOWERS
AND HIGHER ELEVATION SNOW.  AS THE UPPER LOW PUSHES TOWARD THE
SOUTHERN PLAINS SNOW WILL OVERSPREAD THE CENTRAL ROCKIES WITH
HEAVY SNOW POSSIBLE ACROSS THE HIGHER ELEVATIONS.


KREKELER


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





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