896
FXUS63 KGRR 162340
AFDGRR
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
740 PM EDT MON MAR 16 2026
KEY MESSAGES
- WINDY WITH LAKE EFFECT SNOW INTO TUESDAY
- LIGHT BURST OF SNOW WEDNESDAY MORNING
DISCUSSION
ISSUED AT 233 PM EDT MON MAR 16 2026
- WINDY WITH LAKE EFFECT SNOW INTO TUESDAY
SURFACE LOW CENTER MOVES NORTHEAST AND OUT OF SOUTHWEST LOWER
MICHIGAN WITH A WEAKENING DEFORMATION AXIS AND AREA OF MID-LEVEL
FRONTOGENESIS SWINGING THROUGH THE NEXT FEW HOURS, AUGMENTED BY
LAKE ENHANCEMENT. CYCLONIC FLOW CONTINUES THROUGH TUESDAY MORNING
WITH LAKE EFFECT BANDING BECOMING LESS CELLULAR AFTER SUNSET. LAKE
SUPERIOR CONNECTION AND INVERSION HEIGHTS AROUND 8 KFT SHOULD
ALLOW FOR FOR SOME HEAVIER BANDS WITH INCH AN HOUR SNOWFALL RATES
ACROSS THE WARNING AREA OCCASIONALLY AFFECTING THE ADVISORY AREA.
SHORTWAVE TROUGH AXIS MOVES EAST TUESDAY MORNING WITH HEIGHT
RISES AND SUBSIDENCE/DRYING THROUGH THE AFTERNOON. INVERSION
HEIGHTS PROGGED TO LOWER TO AROUND 4 KFT BY TUESDAY EVENING WITH
SNOW SHOWERS TAPERING OFF AND ENDING.
- LIGHT BURST OF SNOW WEDNESDAY MORNING
WE WILL HAVE TO WATCH FOR THE POSSIBILITY OF MINOR TRAVEL IMPACTS
WEDNESDAY MORNING AS AN AREA OF WAA/ISENTROPIC ASCENT COULD BRING
A QUICK BURST OF SNOW. ACCUMULATIONS AT THIS TIME EXPECTED TO BE
LESS THAN AN INCH FOR ROUGHLY THE WESTERN HALF OF THE FORECAST
AREA BUT TEMPERATURES WILL BE BELOW FREEZING AND UNTREATED ROADS
MAY BE SLIPPERY.
AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/
ISSUED AT 734 PM EDT MON MAR 16 2026
NO SIGNIFICANT CHANGES TO THE TAFS. LAKE EFFECT SNOW WILL CONTINUE
OVERNIGHT AND DIMINISH BY TUESDAY AFTERNOON. WIND GUSTS WILL
DIMINISH AFTER MIDNIGHT. AS IS TYPICAL WITH LAKE EFFECT SNOW
SHOWERS, THERE WILL BE WIDE VARIABILITY IN VISIBILITIES BETWEEN
SNOW SHOWERS...VFR TO IFR. AFTER 18Z, VFR CONDITIONS ARE EXPECTED.
MARINE
ISSUED AT 233 PM EDT MON MAR 16 2026
NO CHANGES TO THE HEADLINES. WINDS ARE GUSTING TO 45 KNOTS AT
MUSKEGON AT 2 PM AND WE EXPECT GUSTS TO 50 KNOTS THROUGH EARLY
EVENING FROM THERE TO LUDINGTON.
GRR WATCHES/WARNINGS/ADVISORIES
MI...WIND ADVISORY UNTIL 11 PM EDT THIS EVENING FOR MIZ037>040-
043>046-050>052-056>059-064>067-071>074.
WINTER STORM WARNING UNTIL 11 AM EDT TUESDAY FOR MIZ037-038-043.
WINTER WEATHER ADVISORY UNTIL 11 AM EDT TUESDAY FOR MIZ039-044-
045-050-056-057-064-065-071>073.
MARINE...GALE WARNING UNTIL 5 AM EDT TUESDAY FOR LMZ844>846.
HEAVY FREEZING SPRAY WARNING UNTIL NOON EDT TUESDAY FOR
LMZ844>849.
STORM WARNING UNTIL 8 PM EDT THIS EVENING FOR LMZ847>849.
DISCUSSION...OSTUNO
AVIATION...04
MARINE...OSTUNO
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