Area Forecast Discussion
Issued by NWS Green Bay, WI

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428
FXUS63 KGRB 160953
AFDGRB

Area Forecast Discussion
National Weather Service Green Bay WI
353 AM CST Mon Jan 16 2017

Forecast discussion for routine morning forecast issuance

.SHORT TERM...Today...Tonight...and Tuesday
Issued at 352 AM CST Mon Jan 16 2017

Will be converting Winter Storm Watch plus another tier of
counties to the north to a Winter Weather Advisory. Timing is as
coded below. The advisory will be for a mix of snow, sleet, and
freezing rain. Full discussion for this portion of the forecast
will follow a little later.

.LONG TERM...Tuesday Night Through Sunday
Issued at 352 AM CST Mon Jan 16 2017

Main story for this period will be the January thaw as temperatures
for most of the period will run 10 to 20 degrees above normal.
Night time low temperatures a little tricker as most of the area
will still have snow cover on the ground. The only exception may
be right near Lake Michigan. If we should get some clear and
calm nights, low temperatures will need to be lowered by at least
several degrees.

Tranquil period expected Tuesday night through Thursday night as
high pressure dominates the weather pattern. Low confidence in
the chances for rain Friday due to model differences between
the gfs/ECMWF. Higher confidence in the chances for mainly rain
Friday night into Saturday and again later in the weekend.
&&

.AVIATION...for 06Z TAF Issuance
Issued at 1141 PM CST Sun Jan 15 2017

Mostly VFR weather expected tonight through early
Monday with some MVFR ground fog possible. Winter precipitation
will move into central and east central Wisconsin Monday afternoon
and continue through Tuesday morning. Significant snow or ice is
possible, especially west of the lake and bay. There is uncertainty
as to how far north the precipitation will get. Areas north of a
Tomahawk to Iron Mountain line could remain dry.
&&

.GRB WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory from 3 PM this afternoon to noon CST
Tuesday for WIZ035>040-045-048>050.

Winter Weather Advisory from 5 PM this afternoon to noon CST
Tuesday for WIZ020-022-030-031-074.

Winter Weather Advisory from 7 PM this evening to noon CST
Tuesday for WIZ013-018-019-021-073.
&&

$$

SHORT TERM.....Skowronski
LONG TERM......Eckberg
AVIATION.......RDM



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