Area Forecast Discussion
Issued by NWS Green Bay, WI

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FXUS63 KGRB 110934
AFDGRB

Area Forecast Discussion
National Weather Service Green Bay WI
334 AM CST Wed Jan 11 2017

Forecast discussion for routine morning forecast issuance

.SHORT TERM...Today...Tonight...and Thursday
Issued at 333 AM CST Wed Jan 11 2017

Will be posting a Winter Weather Advisory for the north for today.
Coding is below. Discussion for this portion of the forecast will
follow a little later.

.LONG TERM...Thursday Night Through Tuesday
Issued at 333 AM CST Wed Jan 11 2017

Main focus for this period will be the bitterly cold temperatures
Thursday night into Friday morning, then a moderation in temperatures
this weekend with above normal temperatures expected early next
week. In addition, a system will affect the area bringing another
round of mixed precipitation.

For Thursday night into Friday morning, bitterly cold temperatures
are in the forecast with lows in the single digits below zero east
and in the teens below zero west. A northwest wind of 5 to 10 mph
will produce wind chill readings of 20 below to 30 below zero
north and west of the Fox Valley. A wind chill advisory is
anticipated for this area late Thursday night and Friday morning.
Another cold day is expected on Friday with highs from 5 above to
12 above zero. Minimum temperatures tricky Friday night as a weak
upper level disturbance passes to the south of the area. This
feature will bring an increase in cloudiness and a chance of light
snow mainly south of highway 29. Minimum temperatures across the
far north will need to be monitored as they may need to be lowered
depending on how thick cloud cover is in this region.

A gradual moderation in temperatures is expected this weekend with
above normal temperatures expected for the first half of next
week. The next weather maker will bring a wintry mix to the region
Monday into Tuesday. Some differences noted between the Canadian
and ECMWF with the amount of warm air spreading northward into the
region. Will also need to contend with pavement temperatures which
may be slower to respond due to the expected cold weather late
this week. Later shifts will be able to sort out the details.
&&

.AVIATION...for 06Z TAF Issuance
Issued at 1025 PM CST Tue Jan 10 2017

Gusty west winds and associated blowing snow will diminish
overnight. Lingering MVFR ceilings should erode, with flight
conditions briefly returning to VFR at the TAF sites.

Another round of snow is expected to develop over parts of central
and north central WI early Wednesday morning, and spread southeast
across the rest of the forecast area by early afternoon. Conditions
should quickly drop to IFR once the steadier snow develops.
Improving visibilities will arrive in north central WI in the
afternoon, and across the rest of the forecast area in the
evening, as the snow tapers off.
&&

.GRB WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory until 3 PM CST this afternoon for WIZ005-
010>013-018-019-021-073.
&&

$$

SHORT TERM.....Skowronski
LONG TERM......Eckberg
AVIATION.......Kieckbusch



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