textproduct: Milwaukee/Sullivan

KEY MESSAGES

- Another round of accumulating snowfall is expected this morning, with generally up to an inch possible. Some freezing drizzle will be possible as the snow is moving in. Northerly winds gusting to 35 mph are expected as a cold front drops through. The morning commute will likely be impacted by the lingering wintry weather. A Winter Weather Advisory remains in effect for much of the forecast area until 9 am.

- Additional rounds of light snowfall are then possible at times later Thursday through the weekend.

- Below normal temperatures continue through next weekend, with wind chills -15 to -30 degrees Friday night and Saturday night.

SHORT TERM

Issued 406 AM CST Wed Dec 10 2025

Today and Tonight:

A final round of accumulating snow will drop through southern Wisconsin this morning on the back side of low pressure. Up to an inch of additional accumulation is possible. Not out of the question to see a little freezing drizzle ahead of the snow before better saturation aloft occurs in the ice growth region. Northerly winds will pick up this morning as well as colder air wraps in behind the low. Given the wintry weather and blustery winds expected during the morning commute, opted to extend the Winter Weather Advisory for western areas until 9 am, keeping the 9 am expiration for eastern counties.

Snow will come to an end by late morning, with dry weather expected into the afternoon. Could see a little light snow in southern and western portions of the forecast area late afternoon into early evening as a weak shortwave rolls through. Will see a dusting at best with this round. Colder air will continue to push in tonight, with temperatures dropping into the single digits by daybreak. Light winds and clearing skies are also expected, so could see temps even dip below zero by morning.

DDV

LONG TERM

Issued 406 AM CST Wed Dec 10 2025

Thursday through Tuesday:

Dry weather and well below normal temps are expected under high pressure Thursday. It still looks like light snow may clip the southwest forecast area Thursday night, as a shortwave zips through the region. Will have to keep an eye on model trends with this system, as a wobble north could bring a couple inches of accumulation into at least the southwest.

Another shortwave is expected to move through Friday, with models suggesting a little light snow possible. Even colder temps will move in behind this wave, with highs likely not getting out of the single digits over the weekend. Lows will be below zero at night, with wind chills of 15 to 30 below. Cold weather headlines will be possible both Friday night and Saturday night, with the coldest wind chills expected Saturday night into early Sunday. Another wave may clip the area on Saturday, with more snow chances possible.

Winds will become southerly Monday into Tuesday on the back side of high pressure and as a trough of low pressure approaches from the west. This should result in warming temps early next week, with highs back around normal by Tuesday.

DDV

AVIATION

Issued 406 AM CST Wed Dec 10 2025

A final round of accumulating snow will drop through southern Wisconsin this morning on the back side of low pressure. Up to an inch of additional accumulation is possible. Not out of the question to see a little freezing drizzle ahead of the snow. Northerly winds will pick up this morning as well, with gusts to 30 knots possible. Snow will come to an end by late morning, with dry weather expected into the afternoon. Could see a little light snow in southern and western portions of the forecast area late afternoon into early evening as a weak shortwave rolls through. Will see a dusting at best with this round. Winds will become lighter later today into tonight as well.

Lower ceilings will hang around throughout the day today, with improvement from the north this evening into tonight as the drier and colder airmass pushes in. Visibilities will improve behind the precip this morning.

DDV

MARINE

Issued 406 AM CST Wed Dec 10 2025

Northerly gales will continues to develop this morning across the southern two-thirds of Lake Michigan behind departing low pressure. The brisk winds will then gradually diminish tonight, as high pressure of 30.1 inches approaches from the west. A period of northwesterly gales may then return Friday night into Saturday as a strong arctic front moves through the Great Lakes region. Heavy freezing spray may also develop late week into the weekend as the colder airmass moves in.

DDV

MKX WATCHES/WARNINGS/ADVISORIES

WI...Winter Weather Advisory...WIZ046-WIZ047-WIZ051-WIZ052-WIZ056- WIZ057-WIZ058-WIZ059-WIZ060-WIZ062-WIZ063-WIZ064-WIZ065- WIZ066-WIZ067-WIZ068-WIZ069 until 9 AM Wednesday.

LM...Gale Warning...LMZ080-LMZ673-LMZ675-LMZ777-LMZ779-LMZ874- LMZ876-LMZ878 until 6 PM Wednesday.

Gale Warning...LMZ366-LMZ565-LMZ567-LMZ669-LMZ671-LMZ868- LMZ870-LMZ872 until 6 PM Wednesday.

Gale Warning...LMZ643-LMZ644-LMZ645-LMZ646 until noon Wednesday.

Small Craft Advisory...LMZ643-LMZ644-LMZ645-LMZ646 until 5 AM Wednesday.