Quantitative Precipitation Forecast
Issued by NWS

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FOUS11 KWBC 181937
QPFHSD

PROBABILISTIC HEAVY SNOW AND ICING DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
336 PM EDT SAT APR 18 2015

VALID 00Z SUN APR 19 2015 - 00Z WED APR 22 2015


DAYS 1-2...

...NORTHERN-CENTRAL ROCKIES...

THE ONGOING HEAVY SNOW THREAT ACROSS THE CENTRAL ROCKIES IS
EXPECTED TO WANE TONIGHT INTO TOMORROW AS THE UPPER LOW CURRENTLY
CENTERED OVER THE HIGH PLAINS CONTINUES TO WEAKEN AND DRIFT EAST.
AS THE EVENT WINDS DOWN...EXPECT ANY ADDITIONAL ACCUMULATIONS OF
4-INCHES OR MORE TO BE LIMITED TO THE SOUTHEASTERN WY AND
NORTH-CENTRAL CO RANGES.

IN THE WAKE OF THIS SYSTEM...LOW-MID LEVEL FRONTOGENESIS AND
UPSLOPE FLOW ON THE BACKSIDE OF A RIDGE EXTENDING SOUTH ALONG THE
ROCKIES-HIGH PLAINS IS EXPECTED TO PROMOTE MAINLY LIGHT
SNOWS...WITH SOME 4-INCH OR MORE ACCUMULATIONS POSSIBLE ALONG THE
EASTERN FRONT OF THE NORTHWESTERN WY RANGES SUN-MON...SHIFTING
SOUTHEAST INTO THE CO RANGES BY LATE MON.  WIDESPREAD
ACCUMULATIONS OF 8-INCHES OR MORE ARE NOT EXPECTED EITHER DAY.

THE PROBABILITY OF SIGNIFICANT ICING IS LESS THAN 10 PERCENT.

DAY 3...

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

PEREIRA

$$





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