079
FXUS63 KGRR 121115
AFDGRR
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
715 AM EDT FRI SEP 12 2025
KEY MESSAGES
- CHANCE OF RAIN SATURDAY
DISCUSSION
ISSUED AT 137 AM EDT FRI SEP 12 2025
- CHANCE OF RAIN SATURDAY
OVERALL DRY PATTERN CONTINUES INTO NEXT WEEK WITH ONLY A CHANCE
OF SHOWERS SATURDAY MORNING. CONVECTION FORMS ON THE NOSE OF A LLJ
ACROSS WISCONSIN LATE FRIDAY NIGHT AND TRANSLATES SOUTHEAST
ACROSS LOWER MICHIGAN SATURDAY MORNING WHILE SLOWLY DISSIPATING
AS THE LLJ WEAKENS. QPF AND POPS ARE LOWERED A BIT FROM YESTERDAY.
INSTABILITY AND SHEAR PROFILES SUGGEST THUNDER CHANCES ARE
ISOLATED AT BEST.
THE MAJORITY OF THE NEXT SEVERAL DAYS WILL SEE SFC HIGH PRESSURE
EDGING DOWN FROM CANADA WITH DRY NORTH OR NORTHEAST FLOW. GULF
MOISTURE REMAINS EFFECTIVELY CUT OFF INTO NEXT WEEK. IT MAY BE THE
END OF NEXT WEEK BEFORE THE NEXT CHANCE OF ANY RAIN APPEARS.
AVIATION /12Z TAFS THROUGH 12Z SATURDAY/
ISSUED AT 715 AM EDT FRI SEP 12 2025
VFR CONDITIONS WILL CONTINUE THROUGH TONIGHT. LIGHT AND VARIABLE
WINDS THIS MORNING BECOMING SOUTHWEST AOB 10 KNOTS BY THIS
AFTERNOON.
MARINE
ISSUED AT 137 AM EDT FRI SEP 12 2025
WINDS AND WAVES WILL BE LIGHT INTO NEXT WEEK. LAKE BREEZES IN THE
AFTERNOON WILL SEE SOUTHWEST WINDS AOB 10 KNOTS, OTHERWISE LIGHT
OFFSHORE FLOW CAN BE EXPECTED.
GRR WATCHES/WARNINGS/ADVISORIES
MI...NONE.
MARINE...NONE.
DISCUSSION...OSTUNO
AVIATION...OSTUNO
MARINE...OSTUNO
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