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Winter Weather Forecast Discussion
 
(Caution: Version displayed is not the latest version. - Issued 2023Z May 14, 2014)
 
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Geographic Boundaries -  Map 1: Color  Black/White       Map 2: Color  Black/White


PROBABILISTIC HEAVY SNOW AND ICING DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
423 PM EDT WED MAY 14 2014

VALID 00Z THU MAY 15 2014 - 00Z SUN MAY 18 2014


DAYS 1 THROUGH 3...

MICHIGAN...

A VERY SLIGHT THREAT OF HEAVY SNOW IS POSSIBLE ACROSS A PORTION OF
THE UPPER PENINSULA OF MICHIGAN THURS EVENING INTO FRI EVENING. A
PHASING NRN AND SRN STREAM AMPLIFIED UPPER TROUGH ACROSS THE EAST
WILL DRAW NORTH AND WEST A COPIOUS AMOUNT OF LOW LEVEL MOISTURE
CONTENT FROM THE GULF OF MEXICO/ATLANTIC. THE MAIN THREAT WILL BE
HEAVY TO POSSIBLY EXCESSIVE RAIN BUT UNDERNEATH A DEVELOPING
500-700MB LOW... A VERY MODEST DEFORMATION ZONE OF WET SNOW WILL
BE POSSIBLE. ACCUMULATIONS SHOULD ONLY BE ABOUT AN INCH OR TWO
ACROSS THE CENTRAL PORTION OF THE UP OF MI... AS THIS LOW IS
EXPECTED TO LIFT FROM NRN WI INTO ONTARIO DURING THE FCST PERIOD.
WPC LEANED HEAVILY TOWARD THE 12Z GFS/ECMWF ON THE LOW PROB FOR 4
INCHES.

THE PROBABILITY OF SIGNIFICANT ICING IS LESS THAN 10 PERCENT.

MUSHER