Quantitative Precipitation Forecast
Issued by NWS

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FOUS11 KWBC 100720
QPFHSD

PROBABILISTIC HEAVY SNOW AND ICING DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
319 AM EDT THU APR 10 2014

VALID 12Z THU APR 10 2014 - 12Z SUN APR 13 2014


DAYS 1 AND 2...

THE PROBABILITY OF SIGNIFICANT SNOW AND/OR ICING IS LESS THAN 10
PERCENT.

DAY 3...

THE MODELS SHOW A 700 MB WAVE TO MOVE PROGRESSIVELY ACROSS THE
NORTHERN ROCKIES AND PLAINS...WITH A COLD FRONT MOVING ACROSS THE
SAME AREAS IN ASSOCIATION WITH THE UPPER WAVE.  POST FRONTAL FLOW
TURNS UPSLOPE IN WINDWARD TERRAIN FROM GLACIER NATIONAL PARK DOWN
TO THE MOUNTAINS IN NORTHWEST AND NORTH CENTRAL WY WITH FAVORABLE
DIFLUENT FLOW ALOFT DOWNSTREAM FROM THE UPPER TROUGH. THE MODELS
REMAINED IN BETTER THAN AVERAGE AGREEMENT ON THE WAVE TIMING AND
QPF...SO THESE SOLUTIONS WERE GIVEN HIGH WEIGHTING IN THE FORECAST.

THE PROBABILITY OF SIGNIFICANT ICING IS LESS THAN 10 PERCENT.

BANN

$$





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