Area Forecast Discussion
Issued by NWS Milwaukee/Sullivan, WI

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133
FXUS63 KMKX 280842
AFDMKX

Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
342 AM CDT SAT MAY 28 2016

.TODAY AND TONIGHT...Coming Soon...

.SUNDAY THROUGH MONDAY NIGHT...Forecast Confidence Is Medium.

Models are showing a trough moving east northeast through the
region Sunday morning, with gusty west winds lingering in the
afternoon in its wake. The associated 500 mb shortwave trough also
slides east northeast through the region in the morning, exiting
during the afternoon. There are some hints of a left front
quadrant of a jet streak developing over the area Sunday as well.

It appears that dew points will slowly fall with the trough
passage and mixing. Area forecast soundings still show tall skinny
CAPEs of up to 500 J/kg on the NAM, lower on the GFS.

Will continue to mention thunder in forecast, despite the lower
GFS CAPE values. Any convection would be scattered in nature.
Highs should rise into the upper 70s to around 80 across most of
the area, with gusty westerly winds.

Models then hint at a period of dry weather for Sunday night into
early Memorial Day, as a weak high moves into the region. Any
forcing for upward vertical motion remains weak at best. Kept dry
forecast going for Sunday night. Lower dew points should prevent
fog formation.

Models then show a warm front developing to the southwest of the
area to the southwest of the area on Memorial Day, then shifts it
northeast into the area Monday night. Several weak 500 mb
vorticity maxima shift northeast through the area, with the main
vorticity maximum moving into the region Monday night. Main low
level jet remains to the west of the area during this time.

Area forecast soundings show some mean layer CAPE Memorial Day,
with elevated CAPE Monday night. Again, higher on the NAM than the
GFS for the most part. Continued pops for this period in the
forecast. Warm temperatures will continue, with some lower 60s dew
points working into the southwest counties.

.TUESDAY THROUGH FRIDAY...Forecast Confidence Is Medium.

ECMWF and GFS continue to show moisture gradually streaming into
the area Tuesday into Wednesday. Both models show a cold front
moving east through the region Wednesday and Wednesday night, with
a trailing 500 mb shortwave trough. GFS forecast soundings do show
some decent amounts of mean layer CAPE Tuesday into Wednesday,
though deep layer shear is modest at best. Kept pops for this
period in forecast.

They appear to show high pressure moving into the area toward the
end of next week. This would bring cooler and less humid
conditions to the area. Left consensus blend of model pops and
temperatures as is for now. Still looks rather mild for most of
this period, with cooler temperatures near Lake Michigan with
onshore winds.

&&

.AVIATION/12Z TAFS/...Coming Soon...

&&

.MARINE...Coming Soon...

&&

.MKX Watches/Warnings/Advisories...
WI...None.
LM...DENSE FOG ADVISORY until 1 PM CDT this afternoon for LMZ643-644.

&&

$$

TODAY/TONIGHT AND AVIATION/MARINE...Gehring
Sunday THROUGH Friday...Wood



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