671
FXUS63 KGRB 300456
AFDGRB
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREEN BAY WI
1056 PM CST THU JAN 29 2026
UPDATED AVIATION PORTION FOR 06Z TAF ISSUANCE
KEY MESSAGES
- WIND CHILLS NEAR 10 BELOW TO 25 BELOW LATE TONIGHT AND FRIDAY
MORNING. TEMPERATURES TREND TOWARDS NORMAL NEXT WEEK.
- BESIDES NON-IMPACTFUL LIGHT SNOW SHOWERS OR FLURRIES AT TIMES
THROUGH FRIDAY, THE NEXT CHANCE FOR WIDESPREAD SNOW (20-50%)
ARRIVES SUNDAY AFTERNOON INTO EARLY MONDAY.
DISCUSSION
ISSUED AT 310 PM CST THU JAN 29 2026
TEMPERATURES...AIR TEMPERATURES ONCE AGAIN FALL BELOW ZERO
TONIGHT, WITH LOWS RANGING FROM ABOUT 0 TO 10 BELOW. NORTH WINDS
AROUND 5 TO 10 MPH WILL MAKE FOR WIND CHILLS OF 10 TO 25 BELOW
LATE TONIGHT INTO FRIDAY MORNING. FORECAST STAYS ABOVE CRITERIA
FOR ANY COLD WEATHER HEADLINES, SO THERE ARE NO PLANS FOR
ISSUANCE. THE COLDEST OF THIS ARCTIC AIR DEPARTS FRIDAY, LEADING
TO MODERATING TEMPERATURES FOR THE REST OF THE FORECAST PERIOD.
READINGS WILL BE NEAR NORMAL FOR MOST OF NEXT WEEK, WITH HIGHS IN
THE 20S, AND LOWS IN THE SINGLE DIGITS AND TEENS.
SNOW...LIGHT SNOW AND FLURRIES HAVE BEEN FALLING OUT OF LOW
CLOUDS ACROSS NORTHERN WISCONSIN THIS AFTERNOON. ACCUMULATIONS UP
TO A COUPLE TENTHS EXPECTED FROM THIS SNOW, MAINLY IN FAR NORTH-
CENTRAL WI. OBS SHOW SOME BRIEF VISIBILITY REDUCTIONS TO 3 TO 5
MILES AT TIMES, OTHERWISE IMPACTS WILL BE MINIMAL.
THE OTHER SNOW CONCERN FOR TONIGHT IS A LAKE EFFECT SNOW BAND OVER
LAKE MICHIGAN. STILL HIGH UNCERTAINTY IN EXACTLY WHERE AND IF THIS
BAND WILL MOVE ON SHORE, BUT CAMS SHOWING A FEW HOURS OF EASTERLY
WINDS OVER THE LAKE, SO CONTINUE TO KEEP POPS ACROSS MAINLY
KEWAUNEE AND MANITOWOC COUNTIES LATE TONIGHT INTO FRIDAY MORNING.
SNOW AMOUNTS AROUND 1 INCH OR LESS ARE THE MOST LIKELY OUTCOME,
BUT SOME PLACE RIGHT NEAR THE SHORE COULD SEE UP TO 2 INCHES. AN
ONSHORE SNOW BAND WILL CLEAR OUT BY MID TO LATE MORNING FRIDAY AS
WINDS RETURN TO THE N/NW.
DRY WEATHER AND SUNSHINE ARE EXPECTED FOR SATURDAY, FOLLOWED BY
INCREASING CLOUDS SUNDAY MORNING AHEAD OF A CLIPPER SYSTEM. THE
NEXT OPPORTUNITY FOR SNOW IS SUNDAY AFTERNOON THROUGH SUNDAY NIGHT
FROM THIS CLIPPER, WITH AN ~30% PROBABILITY TO GET 1 INCH OF
SNOW.
AVIATION
FOR 06Z TAF ISSUANCE
ISSUED AT 1056 PM CST THU JAN 29 2026
OVERALL, EXPECT SCT-BKN VFR CIGS THE REST OF THE NIGHT, WITH A
FEW FLURRIES OVER NORTHERN WI AS A SURFACE TROUGH DROPS ACROSS THE
REGION.
ON FRIDAY, A LAKE EFFECT SNOW BAND IS EXPECTED TO COME ONSHORE
NEAR MTW IN THE MORNING, AT LEAST BRIEFLY, BEFORE DROPPING TO THE
SOUTH IN THE AFTERNOON. CONTINUE TO FRAME OUT THE MOST FAVORED
TIME TO SEE IFR CONDITIONS (VSBY REDUCTIONS). CONFIDENCE IS STILL
ON THE LOWER SIDE AS SOME GUIDANCE STILL KEEPS BULK OF THE BAND
OFFSHORE, JUST GRAZING MTW. OTHERWISE, SCT-BKN VFR CLOUDS IN THE
MORNING WILL TREND TOWARD BKN MVFR FROM THE AFTERNOON INTO THE
EVENING. A FEW FLURRIES MAY COME OUT OF THE LOWER CLOUD DECK AS
WELL.
LIGHT NORTHWEST WINDS SHIFT NORTH LATE TONIGHT. NORTHERLY WINDS
WILL THEN TURN GUSTY FOR MOST OF THE DAY ON FRIDAY, ESPECIALLY AT
MTW ONCE THE LAKE EFFECT SHIFTS BY. NORTHWEST WINDS WILL DIMINISH
AGAIN ON FRIDAY EVENING.
GRB WATCHES/WARNINGS/ADVISORIES
NONE.
DISCUSSION.....KLJ
AVIATION.......JLA
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