Area Forecast Discussion
Issued by NWS Milwaukee/Sullivan, WI

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FXUS63 KMKX 211911

Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
211 PM CDT Sat Apr 21 2018


Tonight through Monday...Forecast confidence is High:

High pressure centered over the Great Lakes will move slowly
eastward over the weekend and into Monday, with the west end of
the ridge remaining across southern Wisconsin.

This high will bring dry weather to the forecast area through
this period. Temperatures will be around normal. However east
winds off Lake Michigan will bring cooling to east areas.

The band of altostratus across mainly southwest areas will
gradually thin. Most of the area will likely see some cirrus
due to an upper low moving across the Lower Mississippi River


Tuesday Through Friday...Forecast Confidence Is Medium.

Models are now more in line with trends during this period. A cut
off mid level low lifts northeast into the Ohio River Valley and
weakens, as an upstream trough moves across the Upper Mississippi
valley and Wisconsin Tuesday night and Wednesday. An accompanying
surface trough approaches southern Wisconsin, but weakens as high
pressure builds into southern Wisconsin.

For now, lower end PoPs for Tuesday night. Temperatures will be
near or a little above normal until a cold front moves in
Thursday.morning, moving southeast through the area during the
afternoon or evening hours. There is a 500 mb trough that moves
through the region either Thursday night or Friday. There seems
to be enough moisture with this system, so kept PoPs going for
Thursday into Friday morning. Temperatures look to cool later in
the week.



VFR conditions are expected through the TAF period. High pressure
centered over the Great lakes. Mid/high clouds across southern



High pressure centered over the Great Lakes.  Winds and waves will
remain low across the nearshore waters into early next week.




Tonight/Sunday and Aviation/Marine...Hentz
Sunday Night through Saturday...Hentz is the U.S. government's official web portal to all federal, state and local government web resources and services.