086
FXUS63 KGRB 190848
AFDGRB
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREEN BAY WI
248 AM CST FRI DEC 19 2025
FORECAST DISCUSSION FOR ROUTINE MORNING FORECAST ISSUANCE
KEY MESSAGES
- LINGERING ICY SPOTS ARE POSSIBLE ACROSS AREA ROADS THIS MORNING,
BUT SNOW WILL LARGELY END FOR ALL BUT NORTH-CENTRAL WI
- LIGHT SNOW POSSIBLE LATE FRIDAY NIGHT INTO SATURDAY MORNING.
ACCUMULATIONS WILL LARGELY BE FOCUSED TOWARDS NORTH-CENTRAL WISCONSIN
BUT A FEW FLURRIES COULD GET INTO CENTRAL AND EAST- CENTRAL AS
WELL.
- WESTERLY GALES MAY RETURN TO THE MARINE AREAS SATURDAY EVENING.
DISCUSSION
ISSUED AT 247 AM CST FRI DEC 19 2025
THE LAST OF THE SNOW WILL BE ON ITS WAY THROUGH THE REGION THIS
MORNING. ADDITIONAL ACCUMULATIONS REMAIN LIGHT, AROUND A FEW
TENTHS, BUT SLIPPERY STRETCHES REMAIN, ESPECIALLY ON UNTREATED
ROADS ACROSS PORTIONS OF CENTRAL AND NORTH-CENTRAL WISCONSIN.
WINDS WILL REMAIN GUSTY FOR A FEW ADDITIONAL HOURS BEHIND THE
DEPARTING SNOW, WITH GUSTS UP TO 25 TO 30 MPH LIKELY TO LAST UNTIL
THE EARLY AFTERNOON.
ATTENTION THEN TURNS TO THE NEXT CLIPPER SYSTEM IN LINE, WHICH
WILL MOVE THROUGH THE REGION LATE TONIGHT. WINDS ALOFT WILL BE ON
THE INCREASE AGAIN THROUGH THE LOWER TO MID LEVELS AS A PUSH OF
WARMER AIR ARRIVES, BUT ONLY A FEW GUSTS SHOULD MIX DOWN THROUGH
AROUND MIDNIGHT. AS THE COLD AIR SWINGS THROUGH WITH THE MAIN
PORTION OF THE CLIPPER, FAIRLY DECENT FRONTOGENETIC FORCING SHOULD
BRING SNOW INTO NORTH-CENTRAL WISCONSIN. THIS FEATURE IS MAINLY
FOCUSED ACROSS THE BORDER ALONG THE UPPER PENINSULA, BUT COLD AIR
ADVECTION OVER THE REST OF THE REGION WILL LIKELY SUFFICE FOR AT
LEAST SOME FLURRIES OR LIGHT SNOW. STILL, SNOW AMOUNTS AROUND A
COUPLE INCHES WILL LARGELY BE FOCUSED TOWARDS VILAS COUNTY, WITH
AMOUNTS TAPERING TO AROUND AN INCH BY THE TIME YOU GET TO A LINE
FROM RHINELANDER TO IRON MOUNTAIN AND LESSER AMOUNTS FURTHER
SOUTH. PROBABILISTIC GUIDANCE SUGGEST AREAS SOUTH OF A LINE FROM
MERRILL TO MARINETTE MAINLY SEE 20% CHANCE OR LESS OF EXCEEDING AN
INCH OF SNOWFALL.
NEXT ROUND OF PRECIPITATION IS THEN IN THE FORECAST FOR MONDAY
NIGHT. ALTHOUGH AGAIN PRECIPITATION AMOUNTS WILL BE LIGHT, THIS
MAY YET BE ANOTHER PERIOD THAT BEARS WATCHING FOR MIXED
PRECIPITATION OR FREEZING DRIZZLE AS A WARM LAYER WILL BE IN THE
AREA WHICH MAY HAMPER ICE PRODUCTION TO A RELATIVELY COLDER
SURFACE. WHERE THE WARMER AIR LINES UP AS WE GET CLOSER WILL DRIVE
THE PRECIPITATION TYPE FOR THIS FEATURE AND THE IMPACTS.
TEMPERATURES FOR THE PERIOD WILL SEE A COUPLE SWINGS THROUGH THE
FIRST FEW DAYS OF THE FORECAST, WITH HIGHS MAINLY IN THE TEENS
TODAY AND SUNDAY, BUT IN THE UPPER 20S TO LOWER 30S ON SATURDAY.
THEN HIGHS STEADY OUT FOR MUCH OF THE MIDDLE OF NEXT WEEK, WITH
HIGHS MAINLY LINGERING IN THE UPPER 20S TO MIDDLE 30S.
AVIATION
FOR 06Z TAF ISSUANCE
ISSUED AT 955 PM CST THU DEC 18 2025
LATE THIS EVENING, TEMPERATURES HAVE FALLEN BELOW FREEZING AT MOST
LOCATIONS ACROSS THE REGION WITH THE EXCEPTION OF DOOR COUNTY.
BENEATH AN UPPER TROUGH, PERIODS OF LIGHT SNOW CAN BE EXPECTED FOR
THE REST OF THE NIGHT, TAPERING OFF TOWARDS SUNRISE. IN THE SNOW,
VISIBILITIES WILL DROP TO 1-2 SM AT TIMES. AT KRHI, LAKE- EFFECT
SNOW WILL MAINTAIN IFR/MVFR CONDITIONS THROUGH EARLY FRIDAY.
WINDS WILL BE A MAJOR FACTOR TONIGHT, GUSTING 25-35 KTS FROM THE
WEST- NORTHWEST. MINOR DRIFTING OF THE POWDERY SNOW IS POSSIBLE.
CONDITIONS WILL GRADUALLY IMPROVE LATE TONIGHT THROUGH FRIDAY
MORNING AS HIGH PRESSURE BUILDS IN, THOUGH BREEZY WINDS WILL
PERSIST. FLIGHT CONDITIONS WILL BECOME VFR IN THE AFTERNOON TO GO
ALONG WITH DIMINISHING WINDS.
CEILINGS WILL LOWER ONCE AGAIN ON FRIDAY NIGHT AHEAD OF THE NEXT
CLIPPER. LOW LEVEL WIND SHEAR WILL DEVELOP AT RHI BY THE END OF
THE TAF PERIOD.
MARINE
ISSUED AT 247 AM CST FRI DEC 19 2025
STRONG WINDS BEHIND THE DEPARTING SNOW WILL KEEP GALES IN PLACE
THROUGH THE MORNING BEFORE BEGINNING TO SETTLE THROUGH THE REST OF
THE DAY SATURDAY. WINDS ARE UNLIKELY TO MIX TO THE SURFACE
SATURDAY NIGHT AS WARMER AIR BUILDS UP ALOFT, BUT ADDITIONAL GALES
WILL BE POSSIBLE SATURDAY EVENING AS THE NEXT COLD FRONT ROLLS
THROUGH.
GRB WATCHES/WARNINGS/ADVISORIES
WINTER WEATHER ADVISORY UNTIL 6 AM CST EARLY THIS MORNING FOR
WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074.
DISCUSSION.....UHLMANN
AVIATION.......MPC
MARINE.........UHLMANN
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