Prognostic Meteorological Discussion
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000
FXUS01 KWBC 242136
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
536 PM EDT THU APR 24 2014

VALID 00Z FRI APR 25 2014 - 00Z SUN APR 27 2014

***THUNDERSTORMS FROM THE MIDWEST TO THE EAST COAST THROUGH
FRIDAY***

***REMAINING COLDER THAN AVERAGE ACROSS THE NORTHERN TIER
STATES***

***ACTIVE WEATHER PATTERN FOR THE WESTERN U.S.***


THERE WILL BE TWO MAIN WEATHER SYSTEMS AFFECTING THE CONTINENTAL
U.S. THROUGH SATURDAY.  THE FIRST SYSTEM IS CURRENTLY AFFECTING
THE CENTRAL U.S. WITH SHOWERS AND THUNDERSTORMS EXTENDING FROM THE
UPPER MIDWEST TO THE DEEP SOUTH.  THIS SPRING-LIKE LOW PRESSURE
SYSTEM WILL HAVE A WARM SECTOR ASSOCIATED WITH IT, AND CONDITIONS
WILL BE FAVORABLE FOR THE DEVELOPMENT OF STRONG TO LOCALLY SEVERE
THUNDERSTORMS FROM MISSOURI TO THE CAROLINAS THROUGH FRIDAY
EVENING.  FARTHER TO THE NORTH ACROSS THE GREAT LAKES AND THE
UPPER MIDWEST, MAINLY LIGHT TO MODERATE RAINFALL IS EXPECTED ON
THE NORTH SIDE OF THE SURFACE LOW TRACKING ACROSS THE OHIO VALLEY.

AFTER THE DEPARTURE OF THE FIRST SYSTEM, IT WILL BECOME
INCREASINGLY WARMER AND MORE HUMID FOR THE SOUTHERN AND CENTRAL
PLAINS FOR THE END OF THE WEEK.  STRONG SOUTHERLY FLOW AHEAD OF
ANOTHER STORM SYSTEM CURRENTLY MOVING INTO THE WESTERN UNITED
STATES WILL MAKE IT FEEL MORE LIKE EARLY SUMMER WITH WIDESPREAD
80S AND EVEN LOW 90S.  FARTHER TO THE NORTH, A COLD FRONT SINKING
SOUTH FROM CANADA WILL KEEP COOL TEMPERATURES AROUND THROUGH THE
WEEKEND.

AN UPPER LEVEL TROUGH WILL AMPLIFY ACROSS THE WEST ON FRIDAY WHILE
A COLD FRONT SLOWLY MOVES THROUGH THE INTERMOUNTAIN REGION.
SCATTERED RAIN SHOWERS WILL CHANGE TO SNOW SHOWERS, MOSTLY ACROSS
THE HIGHER ELEVATIONS OF THE ROCKIES WHERE LOCALLY SIGNIFICANT
ACCUMULATIONS OF SNOW ARE POSSIBLE.  RAIN IS EXPECTED FOR THE
VALLEY LOCATIONS, WITH A RAIN/SNOW MIX POSSIBLE IN SOME AREAS AS
SNOW LEVELS GET LOWER.  AS THE UPPER LEVEL DISTURBANCE CONTINUES
EAST ON SATURDAY, SEVERE WEATHER IS EXPECTED FOR PARTS OF THE
GREAT PLAINS, AND THE STORM PREDICTION CENTER WILL HAVE MORE
INFORMATION REGARDING THIS.

HAMRICK


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




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