809
FXUS63 KGRB 270455
AFDGRB
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREEN BAY WI
1055 PM CST MON JAN 26 2026
UPDATED AVIATION PORTION FOR 06Z TAF ISSUANCE
KEY MESSAGES
- A BRIEF PERIOD OF LIGHT SNOW (40-80% CHANCE) THIS EVENING MAY
LEAD TO SLICK ROADS, BUT ACCUMULATIONS WILL BE MAINLY AROUND
1/2 INCH OR LESS.
- UNSEASONABLY COLD WEATHER WILL PERSIST THROUGH THE WORK WEEK
BEFORE TEMPERATURES SLOWLY MODERATE LATE IN THE WEEK AND INTO
THE WEEKEND.
DISCUSSION
ISSUED AT 128 PM CST MON JAN 26 2026
COLD WEATHER CONTINUES MUCH OF THIS WEEK:
THE LARGE SCALE WEATHER PATTERN WILL CONTINUE TO FAVOR REPEATED
INTRUSIONS OF COLD AIR THROUGH THE WEEK OVER THE AREA. ANOTHER
SURGE OF COLD AIR WILL DROP SOUTH OVERNIGHT INTO TUESDAY IN
ASSOCIATION WITH A STRONG SHORTWAVE TROUGH ROTATING ALONG THE
PERIPHERY OF THE PARENT TROUGH OVER EASTERN CANADA. BREEZY WEST
WINDS WILL RESULT IN WIND CHILLS DROPPING INTO THE 15 TO 25 BELOW
ZERO RANGE OVERNIGHT WITH 20-40% CHANCES FOR WIND CHILLS BELOW 25
BELOW ZERO ACROSS CENTRAL AND NORTH-CENTRAL WISCONSIN. GIVEN THESE
LOW CHANCES OF HITTING ADVISORY CRITERIA AND THE RECENT STRETCH OF
COLD WEATHER, WILL NOT ISSUE ANOTHER ADVISORY TONIGHT AS ANY
FORAYS INTO ADVISORY CRITERIA WILL BE BRIEF.
TUESDAY WILL REMAIN BLUSTERY WITH GUSTY NORTHWEST WINDS AND HIGHS
STRUGGLING TO TOP THE SINGLE DIGITS. HIGHS WILL REMAIN MOSTLY IN
THE SINGLE DIGITS TO LOW TEENS THROUGH THURSDAY WITH LOW TO MEDIUM
(20-60%) CHANCES OF WIND CHILLS FALLING UNDER 25 BELOW ZERO
DURING THE COLDER OVERNIGHT HOURS, ESPECIALLY OVER CENTRAL
WISCONSIN.
BY FRIDAY AND INTO EARLY THE FOLLOWING WEEK, RIDGING WILL GRADUALLY
SPREAD EASTWARD FROM THE ROCKIES WITH GRADUALLY MODERATING
TEMPERATURES BACK CLOSER TO SEASONAL AVERAGES.
BRIEF LIGHT SNOW TONIGHT, MAINLY DRY LATER THIS WEEK:
A STRONG MID-LEVEL TROUGH WILL PIVOT SOUTHEAST TONIGHT ACROSS THE
WESTERN GREAT LAKES. ALTHOUGH MOISTURE WILL BE QUITE LIMITED, A
BRIEF PERIOD OF SNOW IS EXPECTED (40-80% CHANCE) THIS EVENING.
EVEN THOUGH PRECIPITATION AMOUNTS WILL BE LIMITED TO FEW
HUNDREDTHS OF AN INCH AT MOST, MEAN HREF SOUNDINGS DEPICT A DEEP
SNOW GROWTH LAYER COINCIDENT WITH DEEP LAYER ASCENT, SUPPORTING
LIGHT, FLUFFY SNOW ACCUMULATIONS UP TO AROUND 1/2 INCH WITH SNOW
RATIOS IN THE MIDDLE TO UPPER TEENS. GUSTY WINDS AND REDUCED
VISIBILITY IN SNOW SHOWERS MAY LEAD TO MINOR TRAVEL IMPACTS.
BEYOND TONIGHT, IMPACTFUL SNOW CHANCES ARE QUITE LOW THROUGH THE
WEEK AS DRY SURFACE HIGH PRESSURE DOMINATES MUCH OF THE CENTRAL
CONUS. SNOW SNOW SHOWERS MAY OCCUR AT TIMES ACROSS FAR NORTH-
CENTRAL WISCONSIN WITH NORTHWEST LOW-LEVEL FLOW DOWNSTREAM FROM
LAKE SUPERIOR.
20-30% SNOW CHANCES RETURN LATE THIS WEEKEND AS WARM ADVECTION
INCREASES OVER THE REGION; HOWEVER, OVERALL PREDICTABILITY IS ON
THE LOW SIDE AT THIS TIME RANGE.
AVIATION
FOR 06Z TAF ISSUANCE
ISSUED AT 1049 PM CST MON JAN 26 2026
THE MAIN BAND OF SNOW IS SHIFTING EAST OF THE AREA LATE IN THE
EVENING. SOME LINGERING FLURRIES CONTINUED ACROSS MUCH OF THE AREA
WHICH SHOULD CONTINUE INTO THE OVERNIGHT HOURS. THE MAIN CHANGE
TO THE FORECAST IS WINDS HAVE DIMINISHED LATE THIS EVENING,
BUT SHOULD PICK BACK UP AGAIN AROUND 09Z AT THE KGRB/KATW/KMW
TAF SITES AND BY 06-07Z AT KAUW/KCWA/KRHI. WIND GUSTS FROM
THE WEST TO NORTHWEST AROUND 25 KNOTS CAN BE EXPECTED THEN
THROUGH MID AFTERNOON BEFORE WINDS GRADUALLY SUBSIDE TOWARDS
SUNSET. AREAS OF MVFR CIGS ARE POSSIBLE NORTH AND WEST OF THE FOX
VALLEY TUESDAY MORNING BEFORE RISING INTO THE VFR CATEGORY.
GRB WATCHES/WARNINGS/ADVISORIES
NONE.
DISCUSSION.....KURIMSKI
AVIATION.......ECKBERG
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