074
FXUS63 KGRR 202001
AFDGRR
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
301 PM EST SAT DEC 20 2025
KEY MESSAGES
- NO MAJOR IMPACTS TO TRAVEL THIS WEEK
DISCUSSION
ISSUED AT 300 PM EST SAT DEC 20 2025
- NO MAJOR IMPACTS TO TRAVEL THIS WEEK
VERY LIGHT PRECIPITATION ALONG A COLD FRONT SHOULD BE CLEARING THE
SOUTHEAST ZONES EARLY THIS EVENING. TEMPERATURES ARE ABOVE
FREEZING AND ANY PRECIP WILL BE LIGHT. TEMPERATURES FALL BELOW
FREEZING THIS EVENING AND SOME SCATTERED LAKE EFFECT SNOW SHOWERS
ARE EXPECTED LATE THIS EVENING, WITH ANY MEASURABLE SNOW CONFINED
TO THE WESTERN FORECAST AREA AFTER MIDNIGHT. INVERSION HEIGHTS ARE
ONLY ABOUT 4 KFT SO ACCUMS GENERALLY A DUSTING TO AN INCH.
THE ONLY OTHER WEATHER OF NOTE COMES MONDAY MORNING. AN AREA OF
WARM ADVECTION COULD BRING LIGHT ACCUMS OF SNOW, GENERALLY AN
INCH OR TWO WITH SURFACE TEMPERATURES NEAR FREEZING. SOME
UNTREATED ROADS COULD BE SLIPPERY, OTHERWISE NO IMPACTS EXPECTED.
A THAW PERIOD WITH TEMPERATURES MOSTLY ABOVE FREEZING CAN BE
EXPECTED FOR MID-WEEK INCLUDING CHRISTMAS DAY. A TRANSITION TO
BELOW FREEZING TEMPERATURES OCCURS BY THE WEEKEND, BUT NO BIG
STORMS ARE IN THE OFFING DURING THE COOLING.
AVIATION /18Z TAFS THROUGH 18Z SUNDAY/
ISSUED AT 1224 PM EST SAT DEC 20 2025
VFR CONDITIONS EXPECTED THROUGH LATE TONIGHT, WITH A PERIOD OF
CIGS LOWERING TO AROUND 4KFT LIKELY AS A COLD FRONT CROSSES THE
TERMINALS. LOW CHANCE OF RAIN/SNOW SHOWERS AT MKG AND GRR OVER
THE NEXT FEW HOURS AND HAVE PROB30S AT THESE TERMINALS
ACCORDINGLY. MVFR CIGS SLIDE IN FROM THE NORTH AFTER 06Z
CONTINUING THROUGH THE END OF THE TAF PERIOD. SOUTHWEST WINDS
GUSTING TO 30 KNOTS SHIFT TO WESTERLY BEHIND THE FRONT WITH GUSTS
CONTINUING UNTIL DIMINISHING LATE SUNDAY MORNING.
GRR WATCHES/WARNINGS/ADVISORIES
MI...NONE.
MARINE...SMALL CRAFT ADVISORY UNTIL 2 PM EST SUNDAY FOR LMZ844>849.
DISCUSSION...OSTUNO
AVIATION...THOMAS
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