932
FXUS63 KGRR 030804
AFDGRR
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
304 AM EST WED DEC 3 2025
KEY MESSAGES
- LIGHT SNOW TODAY
- CONTINUED COLD INTO NEXT WEEK, PERIODIC LIGHT SNOW
DISCUSSION
ISSUED AT 304 AM EST WED DEC 3 2025
- LIGHT SNOW TODAY
A WELL DEFINED COLD FRONT WAS LOCATED FROM IWD SOUTHWEST TO NEAR
OMA EARLY THIS MORNING, HEADING IN OUR DIRECTION. AHEAD OF THE
FRONT, RADAR SHOWED LIGHT SNOW COVERING NORTHEAST WISCONSIN AND
NORTHERN LAKE MICHIGAN. AS THE FRONT GETS CLOSER, CAMS SHOW LIGHT
SNOW DEVELOPING FARTHER SOUTH ACROSS THE LAKE AND WILL THEN SPREAD
INLAND. QPF AMOUNTS ARE AROUND A TENTH OF AN INCH ALONG THE
LAKESHORE COUNTIES AND HALF THAT INLAND. THIS WILL RESULT IN 1-2
INCHES OF SNOW WEST OF US-131 AND AROUND A HALF INCH ELSEWHERE.
MODELS SHOW THE LIGHT SNOW MOVING OVER THE NORTHWEST CWA AROUND
12Z AND THEN SPREADING SOUTH THE REMAINDER OF THE MORNING AND
EARLY AFTERNOON. WHILE HEAVY SNOW ISN'T EXPECTED, TRAVEL
CONDITIONS MAY BECOME SLIPPERY, SO KEEP THAT IN MIND IF TRAVELING
TODAY.
- CONTINUED COLD INTO NEXT WEEK, PERIODIC LIGHT SNOW
COLD AIR WILL POUR OVER THE CWA LATE TODAY AND TONIGHT BEHIND THE
COLD FRONT.H8 TEMPERATURES WILL FALL FROM -4C TO -18C BY 12Z
THURSDAY, SETTING THE STAGE FOR A VERY COLD DAY WITH HIGHS IN THE
LOWER 20S. VERY DRY AIR IS COMING IN BEHIND THE FRONT AND SO SNOW
SHOWERS WILL BE KEPT AT A MINIMUM.
THE CORE OF THE COLD AIR LIFTS OUT FRIDAY AND TEMPERATURES ON
SATURDAY WILL CLIMB TO AROUND 30. HOWEVER, ANOTHER COLD FRONT
MOVES THROUGH SATURDAY AND HIGHS SUNDAY AND MONDAY WILL BE IN THE
20S; NORMAL HIGHS ARE AROUND 40.
EACH ONE OF THESE COLD FRONTS WILL BRING A CHANCE OF SNOW.
HOWEVER, MODELS ARE SHOWING A CLIPPER SYSTEM AND ACCOMPANYING
SHORT WAVE MOVING ACROSS THE CWA NEXT MONDAY NIGHT. THIS WOULD
LIKELY RESULT IN SOME ACCUMULATION, SO WE'LL KEEP AN EYE ON IT.
AVIATION /06Z TAFS THROUGH 06Z THURSDAY/
ISSUED AT 1151 PM EST TUE DEC 2 2025
LOW CLOUDS CONTINUES TO FILTER INTO THE REGION. MVFR CIGS REMAIN
THROUGH CENTRAL MICHIGAN. WITH THE SKIES ALREADY CLEARED, CHANCES
FOR IFR ARE INCREASED ESPECIALLY SINCE AZO, BTL AND BIV HAVE GONE
IFR. THERE IS SOME CONCERN FOR PATCHY TO AREAS OF FOG TOWARDS
MORNING. HOWEVER, GIVEN THE PERSISTENT WINDS AND IFR CIGS THAT
COULD PRECLUDE FOG DEVELOPMENT.
CHANCES FOR LIGHT FZDZ AT AZO AND GRR TONIGHT BY 09Z ARE POSSIBLE
BUT THE DGZ LOOKS TO REMAIN SATURATED SO THAT SIGNAL REMAINS BELOW
20 PERCENT. SNOW LOOKS TO MOVE IN BY 13Z, WITH AN AREA OF LIGHT
SNOW MOVING FROM THE NORTHWEST TO THE SOUTHEAST BRINGING MVFR TO
PERIODS OF IR VISBYS FOR SEVERAL HOURS TO THE TERMINALS. THE SNOW
SHOULD CLEAR GRR AND MKG BY 00Z THURSDAY. GUSTS ARE UP TO 22 KNOTS
AT MKG THROUGH THIS AFTERNOON.
06Z GRR BRIEFING UPDATE....NO MAJOR CHANGES, PRIMARY PRECIP TYPE
IS SNOW WITH UP TO A 30% CHANCE OF FZDZ.
GRR WATCHES/WARNINGS/ADVISORIES
MI...NONE.
MARINE...SMALL CRAFT ADVISORY UNTIL 7 PM EST THURSDAY FOR LMZ844>849.
DISCUSSION...04
AVIATION...CERU/THOMAS
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