Cutlerville, Michigan Weather Forecast Discussion

872
FXUS63 KGRR 250736
AFDGRR
Area Forecast Discussion
National Weather Service Grand Rapids MI
336 AM EDT Thu Sep 25 2025
.KEY MESSAGES...
- Fog expected this morning
- Rain possible this afternoon
- Drier and warmer weather ahead
&&
.DISCUSSION...
Issued at 330 AM EDT Thu Sep 25 2025
- Fog expected this morning
Latest satellite continues to show some mid to high level clouds
clearing to the north as low level clouds continue to thicken over
central and southern lower Michigan. While Low clouds and fog
remain likely this morning, there are a few caveats. The first is
the remaining winds. As of now, winds at many locations remain
around 5 kts. This will dampen fog development. The other issue is
the building high clouds from the south. While this is less of a
concern due to low clouds, it will still trap heat and reduce
temperatures from decreasing. Low clouds and any fog will linger
through the morning and slowly lifting and dissipating this
afternoon.
- Rain possible this afternoon
A large upper level low remains overhead an will slowly move
southward today. That low will shift to the south today. Latest
models have backed off on precipitation chances. The question
remains on amount of moisture and whether there is is enough
through the mid levels. Model soundings show quite a bit of dry
air which should reduce potential for rain. So can`t rule out
isolated showers but not expecting widespread rain.
- Drier and warmer weather ahead
While there remains low level moisture, and not strong enough
flow to scour it out, another round of low clouds and patchy fog
is expected Friday morning.
 However, a building ridge will bring warmer and drier air
through the weekend and into next week. Expect another break from
wet weather along with temps creeping back into the 80s. Max
temperatures are expected to be 10 to 15 degrees above normal by
Sunday and through Tuesday.
&&
.AVIATION /00Z TAFS THROUGH 00Z FRIDAY/...
Issued at 201 AM EDT Thu Sep 25 2025
Conditions and vsbys continue to drop as most TAF sites have
dropped to MVFR with many already at IFR. Latest satellite shows
clearing mid levels and increasing clouds at the low levels. Have
adjusted timing for fog but widespread IFR/LIFR fog and low
stratus are still expected by 09Z. Some areas of dense fog are
likely but timing and placement is uncertain enough to cap minimum
visibilities at 1/2 mile. LAN, AZO, and BTL are the most likely
terminals to see dense fog.
There are a few factors that could reduce the ability for fog to
become dense. One is increase in high clouds from the south. The
other is the persistent winds. That wind and high clouds could
decrease moisture from settling and temps dropping.
 Fog should likely begin lifting and dissipating after daybreak
with the low- cloud deck climbing to VFR by Thursday afternoon.
 After the fog lifts, there remains the potential for scattered
showers tomorrow afternoon into early evening. Mainly affecting
the eastern TAF sites.
&&
.MARINE...
Issued at 334 AM EDT Thu Sep 25 2025
Winds have decreased and lighter wind and waves are expected
Friday into the weekend.
&&
.GRR WATCHES/WARNINGS/ADVISORIES...
MI...None.
MARINE...None.
&&
$$
DISCUSSION...Ceru
AVIATION...Ceru
MARINE...Ceru

NWS GRR Office Area Forecast Discussion