Quantitative Precipitation Forecast
Issued by NWS

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FOUS11 KWBC 162109
QPFHSD

PROBABILISTIC HEAVY SNOW AND ICING DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
508 PM EDT THU APR 16 2015

VALID 00Z FRI APR 17 2015 - 00Z MON APR 20 2015

...CENTRAL ROCKIES...

A SPRING UPSLOPE SNOW EVENT WILL CONTINUE OVER THE CENTRAL ROCKIES
AS AN UPPER LOW MEANDERS OVER THE FOUR CORNERS REGION AND
PERSISTENT MOISTURE GETS DRAWN OUT OF THE GULF OF MEXICO AND INTO
THE TERRAIN.  THE HEAVIEST SNOW SHOULD FALL THURSDAY NIGHT INTO
FRIDAY ALONG THE EASTERN SLOPES OF THE TERRAIN OF NORTH CENTRAL
COLORADO.  SOME OF THE HIGHER PEAKS COULD SEE EVENT TOTALS OF 1 TO
2 FEET...BUT AMOUNTS WILL DECREASE SHARPLY HEADING EAST INTO THE
LOWER ELEVATIONS.  BY FRIDAY NIGHT INTO SATURDAY...SNOW SHOULD
BEGIN TO TAPER OFF AS THE UPPER LOW DRIFTS EAST INTO THE HIGH
PLAINS.

MODELS REMAINED IN GOOD AGREEMENT WITH SNOWFALL AMOUNTS...WHICH
MATCHED UP WELL WITH THE PREVIOUS FORECAST.  MINIMAL CHANGES WERE
MADE TO CONTINUITY.  PLEASE REFER TO THE LOCAL WFO`S FOR ALL
WINTER WEATHER HEADLINES.

THE PROBABILITY OF SIGNIFICANT ICING IS LESS THAN 10 PERCENT.


...MAINE...

SUFFICIENT COLD AIR AND MOISTURE WITH A SHORTWAVE CROSSING NEW
ENGLAND COULD SUPPORT LIGHT SNOW OVER NORTHERN MAINE ON SATURDAY.
THE WPC FORECAST USED A GENERAL MODEL COMPROMISE IN ORDER TO
ACCOUNT FOR THE CURRENT SPREAD.


THE PROBABILITY OF SIGNIFICANT ICING IS LESS THAN 10 PERCENT.

GERHARDT


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