Quantitative Precipitation Forecast
Issued by NWS

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000
FOUS11 KWBC 302017
QPFHSD

PROBABILISTIC HEAVY SNOW AND ICING DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
416 PM EDT SAT APR 30 2016

VALID 00Z SUN MAY 01 2016 - 00Z WED MAY 04 2016

DAYS 1-3...

...CENTRAL/SOUTHERN ROCKIES...

THE UPPER LOW THAT HAS DELIVERED HEAVY SNOWS TO PORTIONS OF THE
CENTRAL ROCKIES AND HIGH PLAINS IS EXPECTED TO CONTINUE TO WEAKEN
AND TRACK STEADILY TO THE EAST...KICKED DOWNSTREAM BY A MID-UPPER
LOW DROPPING INTO THE SOUTHWEST SAT NIGHT INTO SUN.  UPPER LEVEL
DIVERGENCE COMBINED WITH LOW LEVEL CONVERGENCE AND UPSLOPE FLOW
ARE EXPECTED TO SUPPORT THE THREAT FOR HEAVY SNOW ACROSS PORTIONS
OF THE SAN JUAN AND SANGRE DE CRISTO MOUNTAINS -- WHERE FOR THE
24-HR PERIOD ENDING LATE SUN...ADDITIONAL ACCUMULATIONS OF
8-INCHES OR MORE ARE POSSIBLE.  THE HEAVY SNOW THREAT IS EXPECTED
TO DIMINISH THEREAFTER AS THE UPPER LOW SHEARS OUT TO THE
NORTHEAST.  HOWEVER...ADDITIONAL SNOW SHOWERS ARE EXPECTED TO
CONTINUE ACROSS THE REGION AS UPSTREAM ENERGY CONTINUES TO
UNDERCUT THE RIDGE.

THE PROBABILITY OF SIGNIFICANT ICING IS LESS THAN 10 PERCENT.

PEREIRA

$$





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