724
FXUS63 KGRB 112118
AFDGRB
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREEN BAY WI
318 PM CST SUN JAN 11 2026
FORECAST DISCUSSION FOR ROUTINE AFTERNOON FORECAST ISSUANCE
KEY MESSAGES
- THERE IS A CHANCE OF LIGHT SNOW ACCUMULATIONS ACROSS NORTHERN
WISCONSIN THIS EVENING.
- A LIGHT WINTRY MIX MAY RESULT IN LOCALLY HAZARDOUS TRAVEL LATE
MONDAY NIGHT INTO TUESDAY MORNING. ACCUMULATING LAKE-EFFECT SNOW
MAY CAUSE ADDITIONAL TRAVEL CONCERNS IN FAR NORTH CENTRAL WI
TUESDAY NIGHT INTO WEDNESDAY MORNING.
- TEMPERATURES WILL REBOUND TO ABOVE NORMAL EARLY THIS WEEK, THEN
TURN COLDER FROM MID-WEEK INTO THE WEEKEND.
DISCUSSION
ISSUED AT 318 PM CST SUN JAN 11 2026
LOW CLOUDS WERE SCATTERING OUT OVER THE FORECAST AREA THIS
AFTERNOON, BUT HIGH/MID CLOUDS WERE ALREADY INCREASING AHEAD OF
A CLIPPER SYSTEM APPROACHING FROM NORTHERN MN. THE REGIONAL RADAR
MOSAIC SHOWED AN AREA OF LIGHT PRECIPITATION ASSOCIATED WITH THIS
FEATURE. PARTIAL CLEARING IN THE WAKE OF THE SYSTEM WILL BRING
SOME SUNSHINE ON MONDAY, HELPING TO BOOST TEMPERATURES INTO THE
30S TO AROUND 40 RANGE.
A STRONGER CLIPPER LOW PRESSURE SYSTEM PASSES TO OUR NORTH
(THROUGH LAKE SUPERIOR) LATE MONDAY NIGHT INTO TUESDAY, THEN PULLS
A STRONG COLD FRONT THROUGH THE AREA TUESDAY NIGHT. MODELS SHOW A
WARM LAYER ALOFT IN PLACE AT THE BEGINNING OF THE EVENT, LEADING
TO POTENTIAL FOR A WINTRY MIX OF SNOW, SLEET, FREEZING RAIN AND
RAIN LATE MONDAY NIGHT INTO TUESDAY MORNING, BEFORE CHANGING TO
RAIN AND SNOW TUESDAY AFTERNOON. MUCH COLDER AIR ARRIVES ON GUSTY
NORTHWEST TO NORTH WINDS TUESDAY NIGHT, TURNING ANY PRECIPITATION
TO ALL SNOW. ACCUMULATING LAKE-EFFECT SNOW IS EXPECTED OVER NORTH
CENTRAL WI TUESDAY NIGHT INTO WEDNESDAY MORNING, WITH 1 TO 3
INCHES POSSIBLE IN VILAS COUNTY. GALE FORCE GUSTS WILL BE POSSIBLE
ON LAKE MICHIGAN LATER TUESDAY NIGHT INTO WEDNESDAY.
A DEEP UPPER LEVEL TROUGH MOVES INTO THE AREA THURSDAY NIGHT AND
FRIDAY AND SETS UP CAMP OVER THE WESTERN GREAT LAKES THROUGH THE
WEEKEND. PERIODIC SNOW SHOWERS CAN BE EXPECTED DURING THIS TIME
FRAME.
TEMPERATURES WILL WARM TO ABOVE NORMAL EARLY IN THE WEEK. A
DECENT SURGE OF COLDER AIR AND GUSTY NORTH WINDS FOLLOWS THE
MIDWEEK CLIPPER SYSTEM, LEADING TO COLDER TEMPERATURES FOR THE
LATTER HALF OF THE WEEK.
AVIATION
FOR 18Z TAF ISSUANCE
ISSUED AT 1127 AM CST SUN JAN 11 2026
LOWS CLOUDS HAVE BEEN MORE PERSISTENT THAN PREVIOUSLY THOUGHT, SO
HAVE MAINTAINED LOW CEILINGS THROUGH LATE AFTERNOON. A WEAK
CLIPPER SYSTEM WILL BRING A BRIEF PERIOD OF LIGHT SNOW (WITH
MVFR/IFR VSBYS) TO NORTHERN WI, WITH ACCUMULATIONS OF A HALF INCH
OR LESS EXPECTED. THE SNOW WILL SHIFT EAST OF THE FORECAST AREA
AFTER MIDNIGHT. ASIDE FROM SOME LINGERING MVFR CEILINGS IN FAR
NORTH CENTRAL WI LATE TONIGHT, VFR CONDITIONS ARE EXPECTED
TO PREVAIL INTO MONDAY.
MODERATE WESTERLY WINDS ARE ANTICIPATED THROUGH MUCH OF THE
TAF PERIOD.
GRB WATCHES/WARNINGS/ADVISORIES
NONE.
DISCUSSION.....KIECKBUSCH
AVIATION.......KIECKBUSCH
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