Quantitative Precipitation Forecast
Issued by NWS

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000 FOUS30 KWBC 251822 QPFERD EXCESSIVE RAINFALL DISCUSSION NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 222 PM EDT SAT APR 25 2015 ...VALID 18Z SAT APR 25 2015 - 00Z MON APR 27 2015... ...REFERENCE AWIPS GRAPHIC UNDER...DAY 1 EXCESSIVE RAINFALL... CNTL HI PLAINS... S/WV LIFTING NEWD THRU ERN MT THIS EVENING WHILE HELP SHOVE PAC COLD FRONT EWD INTO THE WRN DAKOTAS THOUGH DOWNSTREAM BLOCKING PATRN WILL KEEP FRONT FROM MAKING MUCH FURTHER EWD PROGRESS THRU THE NEXT 24 HRS. INCREASING SEWD FLOW ON THE WEST SIDE OF HIGH PRES BUILDING SWD THRU THE NCNTL STATES WILL INCREASE MSTR FLUX INTO THE STALLED FRONT THIS EVENING WHICH ALONG WITH AN INCREASE IN WEAK INSTABILITY/CAPE DVLPG FROM ERN CO NWD INTO WRN SD... POTNL WILL EXIST FOR MDT CONVECTIVE RAINS TO DVLP AND PERHAPS SOME HEAVIER ISOLD AMOUNTS GIVEN EXPECTED SLOW MOVEMENT OF THE LOW LEVEL CONVERGENCE AXIS. THE HI RES NAM IS QUITE HEAVY WITH AMOUNTS HERE AND WHILE CAN`T COMPLETE RULE OUT POTNL FOR HEAVIER CONVECTIVE CELLS...EXPECT ANY RUNOFF CONCERNS TO BE RATHER ISOLD GIVEN PWS ARE NOT EXCEPTIONALLY HIGH. SULLIVAN $$

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