Prognostic Meteorological Discussion
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000
FXUS01 KWBC 042036
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
435 PM EDT MON MAY 4 2015

VALID 00Z TUE MAY 5 2015 - 00Z THU MAY 7 2015

***WEATHER PATTERN BECOME INCREASINGLY ACTIVE ACROSS THE CENTRAL
U.S.***

***SHOWERS AND MOUNTAIN SNOW FOR THE ROCKIES AND PACIFIC
NORTHWEST***

***WARM WEATHER ACROSS MUCH OF THE COUNTRY THROUGH MID-WEEK***


NUMEROUS SHOWERS AND THUNDERSTORMS ARE IN THE FORECAST FOR MUCH OF
THE GREAT PLAINS AND MIDWEST AS THE OVERALL WEATHER PATTERN
BECOMES MORE ACTIVE.  THE COMBINATION OF AN UPPER LEVEL LOW MOVING
EASTWARD FROM THE SOUTHWESTERN U.S. TOWARDS THE SOUTHERN PLAINS,
COMBINED WITH A SLOW-MOVING FRONTAL BOUNDARY, WILL SET THE STAGE
FOR MULTIPLE COMPLEXES OF THUNDERSTORMS FROM TEXAS TO THE OHIO
VALLEY.  MOISTURE FLOWING NORTHWARD FROM THE WESTERN GULF OF
MEXICO WILL INTERSECT AND OVERRUN THE FRONT, WHILE THE UPPER LEVEL
IMPULSES PROVIDE ADDITIONAL FORCING FOR ASCENT.  LOCALLY HEAVY
RAINFALL AND SEVERE THUNDERSTORMS ARE LIKELY EACH DAY, AND THE
STORM PREDICTION CENTER HAS ADDITIONAL INFORMATION REGARDING THE
SEVERE WEATHER SPECIFICS.

FOR THE EASTERN U.S., A COLD FRONT MOVING SOUTHEASTWARD FROM THE
GREAT LAKES REGION IS FORECAST TO REACH THE MID-ATLANTIC STATES BY
WEDNESDAY MORNING BEFORE STALLING AND GRADUALLY DISSIPATING.  THIS
FRONT WILL LIKELY PROVIDE A SMALL REDUCTION IN THE RECENT WARM
TEMPERATURES AS WINDS TURN MORE NORTHERLY AND EASTERLY FROM
VIRGINIA AND EXTENDING INTO THE NORTHEAST U.S.  HIGHS NORTH OF THE
FRONT ARE EXPECTED TO BE FROM THE MID 60S TO THE 70S, AND
CONTINUED 80+ DEGREE WEATHER SOUTH OF THE FRONT.  SCATTERED
SHOWERS AND STORMS ARE ALSO EXPECTED IN THE VICINITY OF SAID FRONT.

ELSEWHERE ACROSS THE NATION, ADDITIONAL RAIN AND MOUNTAIN SNOW
SHOWERS ARE EXPECTED FOR THE PACIFIC NORTHWEST BY TUESDAY AS
ANOTHER WEATHER DISTURBANCE MOVES THROUGH.  SCATTERED SHOWERS AND
STORMS ARE ALSO LIKELY FOR MUCH OF THE INTERMOUNTAIN WEST THROUGH
MIDWEEK AS A FRONT AND UPPER LEVEL SHORTWAVES AFFECT THE AREA.
FOR THE SOUTHEAST U.S. COAST, A DEVELOPING TROUGH OF LOW PRESSURE
OFFSHORE IS BEING MONITORED FOR POTENTIAL SURFACE LOW DEVELOPMENT,
AND SHOWERS ARE LIKELY TO AFFECT PARTS OF THE FLORIDA PENINSULA
THROUGH WEDNESDAY.

HAMRICK


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





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