Quantitative Precipitation Forecast
Issued by NWS

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FOUS11 KWBC 051951
QPFHSD

PROBABILISTIC HEAVY SNOW AND ICING DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
350 PM EDT THU MAY 05 2016

VALID 00Z FRI MAY 06 2016 - 00Z MON MAY 09 2016


DAYS 1-3...

...SIERRA/NORTHERN ROCKIES...

A LUMBERING LARGE UPPER LOW WILL DRIFT ACROSS THE WEST OVER THE
NEXT 3 DAYS AND YIELD HIGH ELEVATION SNOW IN SOME OF THE USUAL
MOUNTAIN RANGES THAT OFTEN SEE SNOW IN MAY.

ONE IS THE SIERRA RANGE WHERE SOME SNOW COULD FALL DOWN TO AROUND
7500 TO 8000 FEET WITH AN INCREASING PROBABILITY OF WIDESPREAD 4
TO 8 INCH PLUS SNOW. SNOW WILL BEGIN ON DAY 1/THURSDAY AND
CONTINUE INTO DAY 3/SATURDAY.  AS THE TROUGH MOVES EAST...SNOW
BECOMES MORE WIDESPREAD ACROSS THE SIERRA...THE NEVADA HIGH
PEAKS...THE WASATCH/UINTA AND THE COLORADO AND WYOMING MOUNTAIN
PEAKS.  IN ALL OF THESE RANGES...THERE IS AT LEAST A LOW
PROBABILITY OF GREATER THAN 4 INCHES AS SNOW LEVELS DROP TO
BETWEEN 7500 AND 8000 FEET WITH THE GREATEST PROBABILITY FOR HEAVY
SNOW ESPECIALLY IN THE ABSAROKA/WIND RIVER/BIG HORN MOUNTAINS IN
WYOMING...WHERE GREATER THAN A FOOT OF SNOW IS POSSIBLE AT HIGH
ELEVATIONS.

THE PROBABILITY OF SIGNIFICANT ICING IS LESS THAN 10 PERCENT.

KOCIN

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