Prognostic Meteorological Discussion
Issued by NWS

Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6

000
FXUS01 KWBC 271816
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
216 PM EDT WED MAY 27 2015

VALID 00Z THU MAY 28 2015 - 00Z SAT MAY 30 2015

***STORMY WEATHER FOR PARTS OF THE DEEP SOUTH AND SOUTHERN
PLAINS***

***SCATTERED SHOWERS AND THUNDERSTORMS OVER THE WESTERN U.S.***

***WARM AND HUMID ACROSS MUCH OF THE EASTERN U.S.***

THE ATMOSPHERE WILL LIKELY ADD INSULT TO INJURY OVER THE SOUTHERN
PLAINS FOR THE NEXT COUPLE OF DAYS WITH ADDITIONAL HEAVY RAIN AND
STRONG THUNDERSTORMS.  CURRENT FORECASTS ARE CALLING FOR 1 TO 3
INCHES OF RAIN THROUGH FRIDAY OVER MUCH OF NORTHERN TEXAS AND
SOUTHERN OKLAHOMA, WITH ISOLATED HIGHER AMOUNTS POSSIBLE.  GIVEN
THE IMPRESSIVE RAINFALL OVER THE PAST WEEK, THE GROUND IS QUITE
SATURATED AND IT WON`T TAKE MUCH TO CAUSE FLOODING PROBLEMS.
PATCHY AREAS OF HEAVY RAIN ARE ALSO EXPECTED FOR THE DEEP SOUTH.

OVER THE WESTERN THIRD OF THE U.S., MAINLY DIURNALLY DRIVEN
SHOWERS AND THUNDERSTORMS CAN BE EXPECTED EACH AFTERNOON AND
EVENING FROM THE SIERRA NEVADA MOUNTAINS TO THE FRONT RANGE OF THE
ROCKY MOUNTAINS.  INSTABILITY
FROM A BROAD UPPER LEVEL TROUGH OVER THE REGION WILL PROMOTE THE
DEVELOPMENT OF THIS CONVECTION, AND THE GREATEST COVERAGE IS
EXPECTED FOR IDAHO AND MONTANA.  A COLD FRONT IS FORECAST TO DROP
SOUTHWARD FROM CANADA BY THE END OF THE WEEK AND BRING A
NOTICEABLE DROP IN TEMPERATURES FROM THE ROCKY MOUNTAINS TO THE
UPPER MIDWEST AS A QUALITY AIRMASS SETTLES BACK OVER THE NORTHERN
U.S.

THE BERMUDA HIGH OFF THE EAST COAST IS ALLOWING FOR BUILDING HEAT
AND HUMIDITY ACROSS MUCH OF THE EASTERN U.S. THIS WEEK.  SUSTAINED
SOUTHERLY FLOW AND RIDGING ALOFT WILL RESULT IN WIDESPREAD HIGHS
IN THE 80S TO LOWER 90S ALONG WITH DEWPOINTS WELL INTO THE 60S TO
AROUND 70 DEGREES, WHICH IS MORE TYPICAL OF LATE JUNE.  SCATTERED
SHOWERS AND STORMS WILL BE POSSIBLE EACH AFTERNOON, AND A FEW
SEVERE STORMS WILL BE POSSIBLE.  THERE IS A WEAKENING COLD FRONT
APPROACHING THE EAST COAST ON THURSDAY, BUT IT COOLING IMPACT WILL
BE MINIMAL.

HAMRICK


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




USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.