textproduct: Milwaukee/Sullivan

KEY MESSAGES

- Below normal temperatures and periodic chances for light snow are expected through the coming week.

- Monday snow chances have increased but amounts are expected to remain limited with up to 2 inches possible. Highest amounts to the south toward the WI/IL border.

SHORT TERM

Issued 300 PM CST Sun Nov 30 2025

Tonight through Monday night:

The low will push out tonight with higher pressure following in behind it which will allow some level of clearing skies tonight. Although 1000-500mb thicknesses have come up to some degree overnight clearing of any level with a snowpack should allow us to cool off significantly tonight. Low expected to be in the mid to upper single digits. Clouds will push back in late tonight from the southwest as another weak system develops in lee of the Rockies.

This system is expected to push through Monday afternoon/evening bringing a quick hitting snow to southern WI. Overall this will be a light QPF event for us with limited forcing as 700mb WAA and some UL PVA push through the region. The best QPF will be further south toward the IL/WI state line with little to nothing toward central WI as the system tracks through central to northern IL. Total QPF on the high end will be between 0.1-0.15. While the DGZ may be fairly deep for a period, there will be limited forcing within the DGZ for most of the event and thus modeled SLRs have a bit on the high side with SLRs likely to be in the 13-15:1 range. Precip will end overnight with snow totals likely around a trace toward central WI to around 1-1.5inches in southern WI with highest amounts not more than 2 inches expected.

Kuroski

LONG TERM

Issued 300 PM CST Sun Nov 30 2025

Tuesday through Sunday:

Active, fast northwest flow pattern will continue through next weekend. This will maintain our temperature roller coaster ride and a few additional bouts of light snow.

The next, quick weather making front will zip through the region on Wednesday. The speed of the system and marginal moisture availability will result in light snow showers, but negligible accumulation potential, on the order of an inch or less. What this front will do, however, is deliver a shot of much colder air. As high pressure moves into the region Wednesday night, temperatures will plummet to around zero, with the risk of being colder. Highs on Thursday only look to rebound to around 10 degrees.

High pressure will shift to our east heading into next weekend, and temperatures will gradually warm back up, though still remain below average for early December. During the latter half of next weekend and beyond, we will be watching for a potential clipper system and another dose of colder air.

Gagan

AVIATION

Issued 300 PM CST Sun Nov 30 2025

Some patchy MVFR CIGS remain in the region but will push out over the next few hours with high pressure pushing in and clearing skies gradually over the region tonight. However clouds will push back in late tonight with MVFR/IFR CIGS pushing back in late Monday morning and overspreading southern WI by the mid to late afternoon. In addition, snow will push in just behind these lower CIGS in the afternoon with some lowers VSBYS expected at times primarily toward the WI/IL state line. Accumulations are largely expected to remain around an inch or less for most of southern WI but areas near the state line could see as much as 2 inches. Snow will push out late Monday night

Kuroski

MARINE

Issued 300 PM CST Sun Nov 30 2025

Low pressure located over southern Quebec/Ontario this afternoon will continue to rapidly move northeastward over the Quebec province tonight. A Gale Warning has been extended for Lake Michigan through 6 PM for continued gales. Small Craft remains until 9 PM but also may need to be extended. Winds will gradually ease tonight and Monday as high pressure builds across the Great Lakes. Another area of low pressure will quickly move across southern Canada Tuesday and Wednesday, bringing a cold front and a brief chance of light snow to the region. High pressure will then build into the Great Plains and Midwest during the mid to late week time frame.

Kuroski

MKX WATCHES/WARNINGS/ADVISORIES

WI...None. LM...Gale Warning...LMZ080-LMZ261-LMZ362-LMZ364-LMZ366-LMZ563- LMZ565-LMZ567-LMZ669-LMZ671-LMZ673-LMZ675-LMZ777-LMZ779- LMZ868-LMZ870-LMZ872-LMZ874-LMZ876-LMZ878 until 6 PM Sunday.

Small Craft Advisory...LMZ643-LMZ644-LMZ645-LMZ646 until 9 PM Sunday.