textproduct: Milwaukee/Sullivan

KEY MESSAGES

- Some chances (around 10-20 percent) for light rain to occur this afternoon. Cooler temperatures and gusty winds are expected, especially across southeast WI.

- Gale force gusts expected across southern third of Lake Michigan through the evening hours.

- Chances (mainly 20 to 30 percent) for precipitation returns to the area for middle to later portions of next week.

SHORT TERM

Issued 145 PM CDT Sun Mar 22 2026

Tonight through Tuesday night:

Shower chances have pushed out to the southeast with the exiting low pressure system. Winds remain breezy early this evening given the higher pressure gradient between the departing low and incoming high pressure. However winds will decline as the high pushes into the western Great Lakes region into Monday morning. Dry conditions are expected for Monday with no moisture or forcing in the region and thus skies are expected to be clear. High pressure will gradually push out into the day Tuesday possibly lingering long enough to impact the incoming front from a low in Ontario/Quebec. There will be moisture pushing with some WAA. Models generally keep us dry because of lower level dry air likely preventing precip from reach the surface, however, given high moisture from 700-500mb, some midlevel WAA and PVA aloft it remains possible that some precip can make it through, likely as rain given temperatures Tuesday though if precip can make it through the dry layer early Tuesday morning we could see some snowfall. By Tuesday night we will see the now warm front north of the region with any precip chances overnight remaining with the warm front in northern WI.

Kuroski

LONG TERM

Issued 145 PM CDT Sun Mar 22 2026

Wednesday through Sunday:

Broad warm frontogenesis will develop across northern Wisconsin Wednesday, with a few showers possible across southern Wisconsin within the WAA regime. Low pressure will eject from the Rockies Wednesday night, deepening across the Upper Mississippi Valley on Thursday and bringing rain and perhaps some thunderstorms across southern Wisconsin (20-30% chances, isolated to scattered in nature). With strong southerly winds in the morning, expecting highs in the 60s. Low pressure ejects into southeastern Ontario Thursday night, dragging a strong cold front through the area and bringing gusty northerly winds through the overnight hours. Expect lows in the upper 20s. Northerly winds will slowly diminish into Friday as high pressure builds into the central Plains, with highs in the upper 30s to low 40s.

An additional clipper system propagates through southern Canada Friday night through Saturday, turning winds to southwesterly and bringing a return to the upper 40s to low 50s. Sunday, winds remain out of the southwest as low pressure develops in the lee of the Colorado Rockies, bringing highs in the 50s.

MH

AVIATION

Issued 145 PM CDT Sun Mar 22 2026

VFR to MVFR conditions are expected through the period. MVFR ceilings around 1-3 kft are expected through the mid afternoon gradually becoming VFR to the west into the early evening. Patchy drizzle still possible through the early evening with best chances in the southeast. Rain has been kept out of the TAFs in large part due dry air concerns. More widespread ceiling improvement is expected later this evening as high pressure builds in. Lake MVFR CIGS however may hold a bit longer into the early overnight period before pushing out.

Breezy north to northeast winds continue today with very breezy conditions right near the lakeshore with gusts up to 40kts in far southeast parts of WI along the lakeshore.

Clearing skies into Monday with lighter winds as high pressure pushes overhead.

Kuroski

MARINE

Issued 145 PM CDT Sun Mar 22 2026

Low pressure around 29.5 inches will continue east across the southern Great Lakes region this afternoon. As this low pushes out, the pressure gradient remains strong for a period into tonight. Gales continue to be regularly seen in the nearshore areas. A Gale Warning remains through mid evening for the southern nearshore zones (Small Craft northern zones) and through the entire evening for the southern 3rd of the open waters for gusts from 35 to 40 kts, with a few isolated gusts to 45 kts possible.

High pressure around 30.4 inches will build into the Great Lakes Region from Canada tonight into Monday bringing decreasing winds with northerly gales falling later this evening. As this high exits Tuesday and a weak front passes, winds may pick up a bit from the south. Winds over the lake will remain largely from the south through Wednesday as broad low pressure approaches from the west. Chances for precipitation on Tuesday and again on Wednesday though primarily for northern parts of the lake.

Kuroski

MKX WATCHES/WARNINGS/ADVISORIES

WI...None. LM...Gale Warning...LMZ645-LMZ646 until 10 PM Sunday.

Gale Warning...LMZ080-LMZ671-LMZ673-LMZ675-LMZ777-LMZ779- LMZ872-LMZ874-LMZ876-LMZ878 until 1 AM Monday.

Small Craft Advisory...LMZ643-LMZ644 until 1 AM Monday.