Area Forecast Discussion
Issued by NWS Green Bay, WI

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FXUS63 KGRB 172340

Area Forecast Discussion
National Weather Service Green Bay WI
640 PM CDT Sun Sep 17 2017

Updated aviation portion for 00Z TAF issuance

.SHORT TERM...Tonight and Monday
Issued at 308 PM CDT Sun Sep 17 2017

Showers exited Wisconsin as a cold front pushed east of the state.
Much of the forecast area only had some thin clouds by mid
afternoon. Surface high pressure is expected to build into the
area overnight. This should allow for at least patchy fog in the
north but will have to monitor fog trends this evening to
determine whether an advisory may be necessary. Other than that,
temperatures are forecast to bottom out in the 40s to lower 50s at
most locations. Any fog should dissipate shortly after sunrise
Monday. Skies will start out partly cloudy but return flow
combined with a mid level short wave will bring showers to the
area during the afternoon. High temperatures are expected to be
near or a little above normal despite increasing clouds and

.LONG TERM...Monday Night Through Sunday
Issued at 308 PM CDT Sun Sep 17 2017

Temperatures will warm through the work week with mid level
ridging and height rises bring warmer temperatures to the western
Great Lakes. By the middle to end of the work week and into the
early part of next weekend highs will be around 80 degrees, which
will be a good 10 degrees or more above normal for this time of
year. By next Sunday showers and thunderstorms will limit highs to
the 70s. During this stretch several shortwaves will ride along
the periphery of the mid level ridge and bring chances of showers
and thunderstorms at times across the region.

.AVIATION...for 00Z TAF Issuance
Issued at 637 PM CDT Sun Sep 17 2017

Mainly VFR for much of the area. However, IFR/LIFR fog is
possible over parts of northern Wisconsin late tonight into early
Monday morning with light winds and lingering low-level moisture.
VFR conditions prevail across the area by midday.

Weak wave will bring scattered mvfr cigs and showers by late
Monday afternoon and evening from W to E.




LONG TERM......Kurimski
AVIATION.......JKL is the U.S. government's official web portal to all federal, state and local government web resources and services.