527
FXUS63 KMKX 012037
AFDMKX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
237 PM CST THU JAN 1 2026
KEY MESSAGES
- SNOW DIMINISHING FROM WEST TO EAST THIS AFTERNOON.
- A QUICK BURST OF SNOW WILL BE POSSIBLE OVER EAST CENTRAL WI
SUNDAY EVENING, BUT THIS AREA OF SNOW COULD EXPAND TO LARGER
PORTIONS OF SOUTHERN WI.
- POLAR AIR TO REMAIN OVER SOUTHERN WI THROUGH THE WEEKEND, THEN
RELATIVELY MILD TEMPERATURES FOR NEXT WEEK.
SHORT TERM
ISSUED 237 PM CST THU JAN 1 2026
TONIGHT THROUGH SUNDAY:
SNOW IS QUICKLY DIMINISHING FROM WEST TO EAST ACROSS S WI THIS
AFTERNOON AS THE VORTICITY MAXIMUM EXITS FAR SRN WI. THE LIGHT
SNOW OVER FAR SE WI AND EAST CENTRAL WI SHOULD END BY 22-23Z.
CLOUD COVER IS EXPECTED TO GRADUALLY THIN AND SCATTER THROUGH
THE EVENING, BUT THERE IS SOME UNCERTAINTY WITH THE SKY COVERAGE
GIVEN THE EXTENT OF CLOUDS EXTENDING WELL WEST OF THE MS RIVER.
PARTLY CLOUDY SKIES AND LGT WNWLY WINDS ARE EXPECTED FOR FRI AS
HIGH PRESSURE MOVES INTO MN AND PRESSURE TROUGHING CONTINUES
OVER THE NRN GREAT LAKES VIA DIABATIC HEATING. TEMPS WILL RISE
FROM THE SINGLE DIGITS FRI AM INTO THE UPPER TEENS TO LOWER
20S FOR THE AFTERNOON.
MID TO HIGH CLOUDS WILL THEN INCREASE FOR FRI NT-SAT DUE TO A
SHORTWAVE TROUGH TRACKING FROM NE TO THE SRN OHIO VALLEY, AND A
VORTICITY MAXIMUM TRACKING ACROSS NRN AND CENTRAL WI ON SAT. 20
PERCENT CHANCES FOR LIGHT SNOW ARE FORECAST TOWARD CENTRAL WI
ON SAT. HIGH PRESSURE WILL THEN SETTLE OVER WI LATE SAT NT INTO
SUN AM WITH DECREASING CLOUDS AND TEMPS REMAINING A BIT BELOW
NORMAL.
GEHRING
LONG TERM
ISSUED 237 PM CST THU JAN 1 2026
SUNDAY NIGHT THROUGH THURSDAY:
A WELL ORGANIZED SHORTWAVE TROUGH APPROACHING FROM THE WEST WILL
PASS SUNDAY EVENING. A SURGE OF LOW TO MID LEVEL WARM ADVECTION
AND PVA WILL LIKELY BRING A BURST OF SNOW TO EAST CENTRAL WI,
BUT THIS AREA OF SNOW COULD EXPAND TO LARGER PORTIONS OF SRN WI.
SNOW ACCUMS WOULD STILL LIKELY REMAIN ON THE LIGHT SIDE. A
QUASI-ZONAL JET STREAM AND RELATIVELY MILD TEMPERATURES ARE
THEN FORECAST FOR THE REMAINDER OF THE NEW WEEK. MOSTLY DRY
CONDITIONS ARE FORECAST, BUT CANNOT RULE OUT SMALL CHANCES FOR
PRECIPITATION AT TIMES DUE TO WEAK SHORTWAVE TROUGHS WITHIN THE
ZONAL FLOW.
GEHRING
AVIATION
ISSUED 237 PM CST THU JAN 1 2026
SNOW IS QUICKLY DIMINISHING FROM WEST TO EAST ACROSS S WI THIS
AFTERNOON. VFR CONDITIONS HAVE RETURNED TO SOUTH CENTRAL WI AND
WILL RETURN TO SE WI AND EAST CENTRAL WI BY 23-00Z. UNTIL THEN,
VSBYS OF 1-3SM WITH LIGHT SNOW WILL CONTINUE OVER EAST CENTRAL
AND SE WI WITH MVFR CIGS. VFR CONDITIONS WILL THEN PREVAIL TNT-
FRI.
GEHRING
MARINE
ISSUED 237 PM CST THU JAN 1 2026
MODEST TO BRISK WEST TO NORTHWEST WINDS WILL CONTINUE OVER LAKE
MI TONIGHT AND FRIDAY, THEN LIGHTER WINDS TAKE HOLD FOR THE
WEEKEND. THIS WILL OCCUR AS DEEP LOW PRESSURE CONTINUES TO
GRADUALLY WEAKEN OVER HUDSON BAY, WHILE A RIDGE OF HIGH PRESSURE
AROUND 30.1 INCHES EXTENDS FROM MINNESOTA INTO THE OHIO VALLEY.
MODERATE FREEZING SPRAY WILL CONTINUE OVER EASTERN PORTIONS OF
THE LAKE INTO FRIDAY MORNING. EXPECT A SOUTHERLY WIND SHIFT INTO
THE START OF NEXT WEEK AS HIGH PRESSURE SLIDES EAST OF THE
GREAT LAKES, AND A WAVE OF LOW PRESSURE APPROACHES FROM THE
WEST.
GEHRING
MKX WATCHES/WARNINGS/ADVISORIES
WI...NONE.
LM...NONE.
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