166
FXUS63 KGRR 030549
AFDGRR
Area Forecast Discussion
National Weather Service Grand Rapids MI
1249 AM EST Tue Nov 3 2026
.KEY MESSAGES...
- Rain chances Wednesday then turning cooler
&&
.DISCUSSION...
Issued at 152 PM EST Mon Nov 2 2026
- Rain chances Wednesday then turning cooler
Moisture increases in southerly flow through Wednesday with height
falls as upper low approaches, but chances for rain remain low
through Tuesday. The better chance for measurable rain is not
until Wednesday and even then it looks like heavy rain is unlikely
with convection remaining south of the forecast area and dry
slotting occurring rather quickly.
Wraparound, lake-enhanced showers, along with cooler temperatures
can be expected through the end of the week as upper troughing
remains and is eventually reloaded this weekend by a vigorous
northern stream shortwave trough. Current slight chance POPs for
the weekend may eventually trend higher given decent ensemble
support got the timing and location of this trough.
&&
.AVIATION /06Z TAFS THROUGH 06Z WEDNESDAY/...
Issued at 1243 AM EST Tue Nov 3 2026
Low stratus continues to impact all local terminals at the start
of the 06Z TAF period, ranging from MVFR to IFR. This will persist
for several hours, but ceilings should progressively lift from
south to north near or just prior to sunrise this morning. While
some MVFR cloud cover (and other mid/high level clouds) may
persist near the lakeshore for a few more hours, VFR ceilings are
expected the remainder of the period.
Meanwhile, some low level wind shear is also expected at the
start of the period, but should diminish after sunrise as mixing
occurs and surface winds increase. Gusty southerly winds will
persist through the day, with slightly reduced gust speeds this
evening and overnight.
&&
.GRR WATCHES/WARNINGS/ADVISORIES...
MI...None.
MARINE...Small Craft Advisory until 7 PM EST this evening for LMZ844>849.
&&
$$
DISCUSSION...Ostuno
AVIATION...BRC
NWS GRR Office Area Forecast Discussion
