Wauwatosa, Wisconsin 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

970
FXUS63 KMKX 020305
AFDMKX

Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
1005 PM CDT Thu May 1 2025

.KEY MESSAGES...

- Widely scattered showers for the remainder of the afternoon
  and late tonight, with a lull likely this evening. Only
  slight (15-25%) chances for showers lingering into Friday.

- Dry weather likely for Saturday. Highs in the upper 40s along
  the shoreline, closer to 60 towards central WI.

- Temperatures climb several degrees Sunday, with chances for
  showers in eastern WI.

- Even warmer (upper 60s / low 70s inland) starting next
  Tuesday.

&&

.UPDATE...
Issued 1000 PM CDT Thu May 1 2025

Light rain/drizzle has finally begun to dissipate just ahead of
additional showers beginning to push in from the west this
evening. Associated with the upper shortwave this period of
showers looks likely to gradually dissipate and become more
scattered to isolated over the next several hours.

Kuroski

&&

.SHORT TERM...
Issued 340 PM CDT Thu May 1 2025

Tonight through Friday night:

Low pressure continues northeastward from central lower
Michigan this evening, leaving us with low clouds and rain
chances in its wake. Scattered showers continue this afternoon,
with a lull likely this evening. Additional showers may develop
late tonight into early Friday morning as a second shortwave
trough in the 500mb pattern provides PVA. Afterwards, only
15-25% chances for light rain showers to continue Friday and
Friday night. High temps in the 50s on Friday, warmest (closer
to 60 degrees) south of I-94 and inland from Lake Michigan.
Light and variable winds Friday, with an easterly lake breeze
holding the shoreline to a high around 50 degrees flat. Said
lake breeze will push decently far inland (past Fond du Lac and
Waukesha) by late Friday afternoon, aided by high pressure
building into the upper Great Lakes region and a weak surface
pressure trough in southwestern WI.

Sheppard

&&

.LONG TERM...
Issued 340 PM CDT Thu May 1 2025

Saturday through Thursday:

A 500mb trough passing Iowa late Friday evolves into a cutoff
low, which will spend the weekend wobbling around southern
Illinois / Indiana and western Kentucky. The corresponding sfc
low forms over the Appalachians, with weak surface high pressure
remaining dominant over the upper Great lakes and Wisconsin. Dry
and quiet weather expected for Saturday, with highs around 60
degrees in west-central WI, tapering into the 50s further south
and east, then to the upper 40s right along the shoreline due to
light northeast winds.

For Sunday, a plume of moisture wrapping around the occluding
low pressure over the Appalachians may develop some rain showers
(primarily in eastern WI and later in the day, 25-40% chances).
Other than that, the weather stays quiet and temperatures rise
to the low / mid 60s inland. A similar story for Monday,
widespread 20-35% rain chances and same temperatures. Any rain
Sunday / Monday (if applicable) is looking light.

For Tuesday and onwards, things are looking drier and warmer.
Early indications are highs around 70 inland, cooler by the
lake. High pressure remains dominant over the region.

Sheppard

&&

.AVIATION...
Issued 1005 PM CDT Thu May 1 2025

MVFR/IFR CIGS remain in place and will continue for much of the
TAF period. However the MVFR VSBYS and light rain/drizzle have
finally started to dissipate as additional showers start to push
in from the west. These showers will gradually dissipate as
they push east tonight with isolated showers expected across
southwest WI with better chances toward west central WI. Slight
chances for showers throughout much of the day Friday. Winds
will remain light and variable for the most part through the TAF
period.

Kuroski

&&

.MARINE...
Issued 340 PM CDT Thu May 1 2025

Nearshore:
The ongoing Small Craft Advisory remains in effect through this
evening due to lingering waves. Steady NNE winds Friday night
into Saturday morning may cause waves to approach Small Craft
Conditions, with waves around 4 ft forecast through the daytime
hours of Saturday.

Open Waters:
Low pressure around 29.6 inches will continue northeastward from
central lower-Michigan this evening. For the rest of today, modest
west winds over the southern half of the lake. Gusty north to
northeast winds for the north half, but remaining below gale force.
Winds decline as the low departs late tonight, leaving light
northwesterlies for the north half, with light and variable for the
south.

High pressure builds into the region from the north for the weekend,
with a low pressure system holding steady then occluding / decaying
over Kentucky / southern Indiana. This will lead to light northerly
winds throughout the weekend.

Sheppard

&&

.MKX WATCHES/WARNINGS/ADVISORIES...
WI...None.
LM...None.

&&

$$

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