Prognostic Meteorological Discussion
Issued by NWS

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FXUS01 KWBC 280642
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
242 AM EDT SUN MAY 28 2017

VALID 12Z SUN MAY 28 2017 - 12Z TUE MAY 30 2017

...SEVERE THUNDERSTORMS AND LOCALLY HEAVY RAIN POSSIBLE FROM THE
SOUTHERN PLAINS TO THE OHIO VALLEY AND MID-ATLANTIC...

...HOT CONDITIONS EXPECTED TO PERSIST FOR THE INTERIOR PACIFIC
NORTHWEST...

AN UPPER-LEVEL LOW IS FORECAST TO DEEPEN ACROSS THE GREAT LAKES
OVER THE NEXT COUPLE DAYS AS A SURFACE LOW PRESSURE SYSTEM BRINGS
SHOWERS AND THUNDERSTORMS TO MUCH OF THE CENTRAL AND EASTERN U.S.
SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY AND TONIGHT AHEAD OF
THE ASSOCIATED COLD FRONT, FROM THE SOUTHERN PLAINS TO THE LOWER
AND MID MISSISSIPPI VALLEY TO THE GREAT LAKES AND MID-ATLANTIC.
SOME THUNDERSTORMS COULD BE SEVERE ACROSS THESE AREAS. PLEASE
REFER TO PRODUCTS ISSUED BY THE STORM PREDICTION CENTER FOR
FURTHER DETAILS ON THE SEVERE WEATHER THREAT. LOCALLY HEAVY RAIN
IS ALSO POSSIBLE. ON MONDAY, THE FRONT WILL BRING NUMEROUS SHOWERS
AND THUNDERSTORMS TO THE NORTHEAST, WITH SCATTERED SHOWERS AND
STORMS FARTHER SOUTH ACROSS PORTIONS OF THE MID-ATLANTIC, THE
SOUTHEAST, AND THE SOUTHERN PLAINS.

HIGH PRESSURE ALOFT IS FORECAST TO PERSIST ACROSS THE WESTERN U.S.
PROMOTING CONTINUED WARM AND GENERALLY DRY CONDITIONS. A COLD
FRONT WILL MOVE INTO THE NORTHERN ROCKIES LATER TODAY THROUGH
MONDAY, WITH SCATTERED SHOWERS AND THUNDERSTORMS POSSIBLE. THE
HOTTEST CONDITIONS ARE EXPECTED ACROSS THE INTERIOR PACIFIC
NORTHWEST, WHERE HIGH TEMPERATURES TODAY AND MONDAY ARE FORECAST
TO BE 10 TO 20 DEGREES ABOVE AVERAGE. TEMPERATURES WILL RISE WELL
INTO THE 90S FOR PORTIONS OF INTERIOR WASHINGTON AND OREGON.

RYAN


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

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