990
FXUS63 KGRR 052332
AFDGRR
Area Forecast Discussion
National Weather Service Grand Rapids MI
632 PM EST Thu Nov 5 2026
.KEY MESSAGES...
- Upper Low brings showers and even wet snow north tonight
- Northerly flow lake effect rain showers Friday
&&
.DISCUSSION...
Issued at 205 PM EST Thu Nov 5 2026
- Upper Low brings showers and even wet snow tonight
An upper low moves through followed by push of cold air tonight
which could bring the first snow to the northern forecast area
by Friday morning. Above freezing skin temperatures should prevent
accumulations except for the higher elevations of Osceola and
Clare Counties where a coating of slush is possible. No travel
impacts are expected.
- Northerly flow lake effect rain showers Friday
Lake effect rain showers in north-northwest flow on Friday will
affect areas close to Lake Michigan with the highest POPs in
southwest Allegan and western Van Buren Counties. The rain will be
diminishing and ending Friday night as shortwave ridging moves in.
Cyclonic flow returns over the weekend but fair weather continues
as a clipper passes far to the north of Lower Michigan.
&&
.AVIATION /00Z TAFS THROUGH 00Z SATURDAY/...
Issued at 629 PM EST Thu Nov 5 2026
A cold front moving across Lower MI will switch the winds from
west to NNW tonight. Radar shows light showers moving south across
the region and we`ll see some move across the terminals during the
next several hours.
Cold air flowing over the lake will generate some lake effect rain
showers Friday, especially closer to the lake shore. Otherwise,
generally MVFR conditions are expected, with spotty IFR vsbys in
showers this evening.
&&
.MARINE...
Issued at 1228 PM EST Thu Nov 5 2026
No changes to the marine hazards forecast for tonight with low end
northerly gales at times persisting into Friday afternoon. Wind
fields may be slightly too strong for waterspouts, but they are a
possibility Friday morning when the mid/upper cold pool moves
across the lake.
&&
.GRR WATCHES/WARNINGS/ADVISORIES...
MI...None.
MARINE...Small Craft Advisory until 7 PM EST Friday for LMZ844>847.
Gale Warning until 7 PM EST Friday for LMZ848-849.
&&
$$
DISCUSSION...Ostuno
AVIATION...04
MARINE...Ostuno
NWS GRR Office Area Forecast Discussion
