299
FXUS63 KMQT 301842
AFDMQT

Area Forecast Discussion
National Weather Service Marquette MI
242 PM EDT Wed Jul 30 2025

.KEY MESSAGES...

- Cooler to near normal temperatures and dry weather is expected
  Wednesday through the rest of the week. Temperatures are
  expected to warm to normal to above normal by this weekend.

&&

.SHORT TERM /THROUGH THURSDAY/...
Issued at 232 PM EDT Wed Jul 30 2025

As near-surface smoke continues to smother the area the rest of
today through Thursday, expect the air quality to continue being
Unhealthy for Sensitive Groups (Orange AQI) to Unhealthy (Red AQI),
with some spots such as Houghton and Munising already reporting Very
Unhealthy (Purple AQI) air conditions. Thus, avoid strenuous
activity the next couple of days as the high pressure building into
the region will arrive over the western Great Lakes Thursday,
continuing to pump smoke from the Canadian wildfires over us as it
does so. Because of the air quality hazards associated with the
smoke, the Michigan Department of Environment, Great Lakes, and
Energy (EGLE) has re-issued an Air Quality Advisory for today
through Thursday; read the Air Quality Advisory for additional
details.

Outside of the air quality/surface smoke concerns, the forecast
remains quiet, with the high pressure building in suppressing
convection across the region as cold air advection gradually
continues across the U.P. until Thursday. Thus, we can expect the
coolest temperatures of the week to occur today through Thursday,
with highs today and Thursday ranging from the upper 60s to mid 70s;
lows are still expected to drop down into the mid 40s across the
interior areas tonight, even despite the added insulation from the
near-surface smoke.

&&

.LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/...
Issued at 241 PM EDT Wed Jul 30 2025

Quiet and dry weather continues the rest of this week into early
next week as the high pressure, now over the western Great Lakes by
Thursday night and Friday, continues to keep ridging over the area
through the weekend while finally escaping to the Eastern Seaboard
on Sunday. Surface smoke looks to continue being a problem into
Thursday night, and could continue being a problem until sometime
this weekend; I wouldn`t be surprised if the air quality remains
poor for the next few days.

Otherwise, expect the temperatures to gradually increase to around
normal to potentially above normal for this weekend into the first
half of next week as some warmer air circulates around the high
pressure over our neck-of-the-woods. While we could see RHs drop
down into the mid 30 percents Friday and Saturday afternoons, with
leaves being green and the slight surplus of rainfall we`ve received
over the past month, no fire weather concerns are expected even as
we remain dry until potentially the middle of next week; in
addition, moisture from the Gulf is projected to begin advecting
back into the area around Sunday next week as the high`s center
leaves for the Eastern Seaboard, increasing surface moisture.

&&

.AVIATION /18Z TAFS THROUGH 18Z THURSDAY/...
Issued at 1253 PM EDT Wed Jul 30 2025

Near sfc smoke is expected to keep everyone at IFR to MVFR vis over
the next 24+ hours, although a bump-up to VFR from time-to-time
cannot be ruled out. TAF amendments may be needed later this
afternoon if vis stays more IFR than MVFR. Light northerly flow
continues the rest of today through Thursday as high pressure
continues to build in from the Canadian Prairies.

&&

.MARINE...
Issued at 241 PM EDT Wed Jul 30 2025

Light winds of 20 knots or less continues as high pressure ridging
remains across Lake Superior.

&&

.MQT WATCHES/WARNINGS/ADVISORIES...
Upper Michigan...
None.
Lake Superior...
None.
Lake Michigan...
None.

&&

$$

SHORT TERM...TAP
LONG TERM...TAP
AVIATION...TAP
MARINE...TAP