Quantitative Precipitation Forecast
Issued by NWS

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000
FOUS30 KWBC 170646
QPFERD

EXCESSIVE RAINFALL DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
146 AM EST WED DEC 17 2014

...VALID 06Z WED DEC 17 2014 - 12Z THU DEC 18 2014...
...REFERENCE AWIPS GRAPHIC UNDER...DAY 1 EXCESSIVE RAINFALL...



SOUTHERN CA...

THE SEE TEXT FOR SRN CA IS IN RESPONSE TO WPC MPD #433 AND SHOULD
BE VALID FOR THE NEXT FEW HRS. AN ELONGATED UPPER SHEAR AXIS WITH
AN ASSOCIATED OCCLUDED SURFACE COLD FRONT IS SLICING THROUGH
CENTRAL CA AND BEGINNING TO PUSH ONSHORE INTO PARTS OF SRN CA
EARLY THIS MORNING. THE CONSTANT ONSHORE FLOW AND PAC MOISTURE
TRANSPORT INTO THE STATE ALONG WITH STRONG FORCING AND RELATIVELY
COLD MID TO UPPER LEVEL TEMPS HAVE ALLOWED SEVERAL CELLS AND LINE
SEGMENTS OF THUNDERSTORM ACTIVITY TO FORM JUST OFFSHORE OF SBA.
THE RAP SUGGESTS ENOUGH CAPE INVOF SRN CA THAT THESE INTENSE RAIN
CLUSTERS COULD MOVE ONSHORE AND JUST EXACERBATE THE SATURATED
AREA. FOR MORE ON THIS SHORT TERM ISSUE... PLEASE REFER TO WPC MPD
433.

MUSHER
$$




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