Prognostic Meteorological Discussion
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000
FXUS01 KWBC 011939
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
339 PM EDT SUN MAY 01 2016

VALID 00Z MON MAY 02 2016 - 00Z WED MAY 04 2016

...HEAVY RAIN AND FLASH FLOODING POSSIBLE FROM PARTS OF THE LOWER
MISSISSIPPI VALLEY TO THE CENTRAL APPALACHIANS...

...SEVERE THUNDERSTORMS POSSIBLE ACROSS PORTIONS OF THE OHIO
VALLEY...

BROAD SOUTHWESTERLY FLOW AHEAD OF A COLD FRONT WILL TRANSPORT A
WARM AND HUMID AIR MASS NORTHWARD ACROSS THE EASTERN U.S. SHOWERS
AND THUNDERSTORMS ARE EXPECTED ALONG AND AHEAD OF THE FRONT AS IT
SLOWLY TRAVERSES THE REGION.  LOCALLY HEAVY RAINFALL COULD LEAD TO
FLASH FLOODING ACROSS THE LOWER MISSISSIPPI VALLEY TODAY AND THEN
THE LOWER MISSISSIPPI VALLEY TO CENTRAL APPALACHIANS TOMORROW.
PORTIONS OF THE OHIO VALLEY COULD SEE THE DEVELOPMENT OF STRONG TO
SEVERE THUNDERSTORMS THIS AFTERNOON.

IN THE WEST, AN UPPER LEVEL LOW OVER THE SOUTHWEST WILL BRING
SHOWERS TO PARTS OF THE SOUTHWEST AND SOUTHERN HIGH PLAINS. SNOW
IS EXPECTED ACROSS THE HIGHEST ELEVATIONS WITH SOME LIGHT
ACCUMULATIONS POSSIBLE IN SOUTHERN COLORADO. THE UPPER LOW IS
REPLACED BY A STRONG RIDGE BUILDING OVER THE WESTERN U.S. BY
MONDAY. MUCH ABOVE NORMAL TEMPERATURE ARE EXPECTED ACROSS MUCH OF
THE PACIFIC NORTHWEST TO NORTHERN HIGH PLAINS.

KREKELER


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