553
FXUS63 KAPX 031017
AFDAPX

Area Forecast Discussion
National Weather Service Gaylord MI
617 AM EDT Sun May 3 2026

.KEY MESSAGES...

-Ideal fire weather conditions build this Monday.

-Active weather remains in the forecast through next week with
periodic rain and frost chances. Low end probabilities for localized
mixed precipitation towards the end of the week.

&&

.DISCUSSION...
Issued at 233 AM EDT Sun May 3 2026

Pattern Synopsis:

Midlevel closed low pressure system remains positioned over
Ontario/Quebec today and will continue to pivot around Hudson Bay
for the next several days. After a brief warm-up today and Monday
from a low-amplitude shortwave ridge, Canadian air mass influence
will form a blocking pattern across the Great Lakes region next
week. This will result in 850mb temperatures near freezing and
seasonably cool temperatures for early May. Periods of precipitation
will continue through the rest of the week as embedded height waves
from the aforementioned low track through the Great Lakes Region.
The majority of active weather remains rainfall, but cool
temperatures aloft and the potential timing of precipitation will
keep low probabilities of mixed precipitation in the forecast
towards the end of the work week.

Forecast Details:

Favorable wildfire conditions this Monday... The previously
mentioned shortwave centered over Northern Ontario will create a
weak frontal boundary to sweep across the Great Lakes Region Monday
night. Model soundings depict a shallow low-level saturated layer
with conditionally unstable lapse rates and a small inverted v
profile. Enough instability should produce some isolated convection
with 30-35kt low level winds mixing to the surface. Even with
precipitation ranging from a general trace to a tenth of an inch for
most areas, dry atmospheric conditions and gusty winds ahead of the
line should continue favorable fire weather conditions Monday
afternoon.

Periodic chances of rain and frost chances continue through the
midweek...Aforementioned midlevel low pressure will pivot around
Hudson Bay with shortwave troughs dipping into the northwoods
bringing seasonably cool cP air and sensible weather with it. With
850mb temperatures below freezing, high temperatures beyond Tuesday
will remain in the 40s and 50s for most areas with overnight
temperatures near or below freezing. Additional frost/freeze
warnings will likely need to be reissued as we head closer to
midweek next week. Low-level lingering moisture behind Monday
night`s front will continue light precipitation chances as well,
along with low probabilities of some mixed precipitation returning
to the forecast. Best timing for this feature remains around the
Thursday/Friday timeframe as another wave digs through the Great
Lakes region.

&&

.AVIATION /12Z TAFS THROUGH 12Z MONDAY/...
Issued at 616 AM EDT Sun May 3 2026

A weak disturbance will cross northern MI today, bringing scattered
light rain showers to much of the area at times into early evening.
Best potential for sub-VFR CIGs at CIU/PLN/APN with low VFR favored
at TVC/MBL. VFR expected to return area-wide this evening. Southwest
winds turn gusty today, especially northern lower, before dimishing
this evening/early overnight.

&&

.APX WATCHES/WARNINGS/ADVISORIES...
MI...Freeze Warning until 8 AM EDT this morning for MIZ016>018-
     021>024-027>030-033>036-041-042-099.
     Frost Advisory until 8 AM EDT this morning for MIZ026-032.
MARINE...Small Craft Advisory from 11 AM this morning to 8 PM EDT this
     evening for LHZ345.
     Small Craft Advisory from 2 PM this afternoon to 8 PM EDT this
     evening for LHZ346-347.
     Small Craft Advisory from 11 AM this morning to 11 PM EDT this
     evening for LHZ349.
     Small Craft Advisory from 11 AM this morning to 8 PM EDT this
     evening for LMZ323-341-342-344>346.

&&

$$

DISCUSSION...SJC
AVIATION...MJG

NWS APX Office Area Forecast Discussion