227
FXUS63 KAPX 110334
AFDAPX

Area Forecast Discussion
National Weather Service Gaylord MI
1134 PM EDT Mon Aug 10 2026

.KEY MESSAGES...

- Sporadic shower/storm chances for a few days, highest / most
  widespread chances Wednesday.

- Somewhat cooler temps late this week and weekend.

- Next more widespread rain / storm chances builds Saturday
  into Sunday.

&&

.DISCUSSION...
Issued at 200 PM EDT Mon Aug 10 2026

Pattern / Forecast Synopsis:

Progressive WNW flow regime to prevail through the rest of the week,
with northern Michigan lying north of a stationary boundary
(analyzed from roughly Omaha to Cleveland to Philadelphia) that will
remain the focus of several convectively charged waves. Result is
much deeper moisture pooling well to our south, with modest moisture
remaining overhead... just enough for potential mesoscale
shenanigans. Disheveled surface high overhead will not exactly
dissuade the notion of convective development along the Lake Huron
breeze boundary along with eastern upper the next couple days before
a weak wave traverses the region, bringing scattered convection
potential to the entirety of the CWA. 500mb ridge axis builds after
midweek, with plume of monsoonal moisture coincides with a trough
building into the Plains. Guidance seems bullish on an associated
deepening surface low to make a pass at the upper Great Lakes over
the weekend. On paper, this should be sufficient enough to force the
aforementioned stationary front northward, and the combination of
monsoonal origin moisture coupled with return flow drawing Gulf
moisture northward conceptually should bring a more widespread and
appreciable rainfall chance across the region Saturday into Sunday.
Following the passage of this feature, the pattern shifts back into
progressive NW flow, which should lead to more quick-moving
convectively charged shortwaves making passes through the Great
Lakes, though it`s a bit far out to pinpoint where exactly any
convective complexes occur next week.

Details:

Today-Tuesday: Ongoing robust convective complexes over Ohio
showcase the barrier that the aforementioned stationary front
presents between deeper moisture and the modest moisture overhead.
Most of the convection that has wavered north of the front has
floundered considerably while activity south of the front (in the
deeper moisture) has been able to maintain itself quite well. As
such, anticipation is that convective responses will remain muted
overhead. Lack of overall synoptic forcing will leave coverage to an
isolated footprint today, limited to the Lake Huron lake breeze
area. Limited shear and instability will suppress severe potential.
Somewhat deeper moisture builds Tuesday, Light west to southwest
flow will maximize lake breeze convergence across northeast lower
and eastern upper, and thus, that will be where greatest storm
potential lies. Scattered downpours will be possible, but not
looking like a washout by any means.

Wednesday-Friday: Embedded shortwave passage coupled with continued
deeper moisture will drum up a much more widespread footprint of
shower and storm potential Wednesday. Timing of this feature might
actually be halfway decent to overlap "greatest" synoptic forcing
with peak heating, thus leading to the more "widespread" footprint
of convection that includes northwest lower too. Severe potential
looks limited Wednesday too, with downpours likely posing the
greatest hazard at this juncture. In the wake of this system, area
of Canadian surface high pressure intrudes from the northwest in
conjunction with a 500mb ridge axis, delivering a drier airmass to
the region (and perhaps a brief reprieve from the thick blanket of
Pacific NW wildfire smoke aloft). Temperatures trend near to below
normal Thursday and Friday (highs in the 70s), with cooler nights
(lows in the 40s and 50s likely).

Weekend-Next Week: Ridge overhead breaks down as SWerly flow brings
the next disturbance to the region. Guidance is all over the place
in regard to the evolution of this wave, and will likely be dictated
by convective evolution over the Plains. Bottom line- this system
looks to build a relatively deep moisture plume into the region,
which should support heavy rainfall potential. As is always the case
in this delightful little slice of planet earth, every little
intricate detail has to be perfect for us to get widespread heavier
rain with moderate to weak synoptic support. I`m convinced something
as simple as a fly getting swatted by a horse`s tail in Manton can
lead to a series of ludicrous domino effects that entirely derail a
convection / thunderstorm setup in northern Michigan, though I
should disclose that I have also been accused of being entirely too
pessimistic in this regard. Nonetheless, still a lot of detail to
unpack on this upcoming system, but the potential is there for
appreciable rainfall on a bit more widespread scale than what we
have seen the last couple weeks. If the timing is primed in regard
to our field of instability, perhaps even a severe storm element can
materialize. Following the passage of this system into next week, NW
flow returns, which, conceptually supports more rounds of rain and
thunder via convective complexes building upstream.

&&

.AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/...
Issued at 1134 PM EDT Mon Aug 10 2026

Conditions will continue to decrease as we head further into
tonight with MVFR to LIFR as fog/mist develops, especially MBL
and APN with fog/mist already observed in those areas...CIU
looks to drop slightly later than these two locations with
satellite beginning to indicate some lower conditions forming.
Conditions are expected to improve through the morning returning
to VFR by the afternoon. Winds look to remain generally light
with perhaps a few gusts to 15 knots in the afternoon Tuesday.

&&

.APX WATCHES/WARNINGS/ADVISORIES...
MI...None.
MARINE...None.

&&

$$

DISCUSSION...HAD
AVIATION...NSC