textproduct: Gaylord

KEY MESSAGES

- Frost/freeze tonight across the interior.

- On/off light rain showers and breezy conditions much of this upcoming week.

DISCUSSION

Issued at 221 AM EDT Mon Oct 5 2026

Large and energetic trough and upper low to the northeast will continue to move east with time today. Heights rise some in its wake, with cool high pressure sinking over northern Michigan, especially later this afternoon and evening. Thus, temperatures generally in the mid to upper 50s across much of the area with low 60s near Saginaw Bay. Northwest winds remain on the slightly breezy side today, gusts 15 to 25 mph at times. As high pressure oozes over northern Michigan this evening, winds will decrease and the atmosphere will decouple, resulting in efficient radiational cooling. Overnight low temps will drop into the 30s almost everywhere, near or below freezing across portions of the interior. High pressure slides to the east late during the overnight hours in response to the next piece of energy aloft and low pressure system in the Dakotas. This will likely introduce a little southern flow late tonight, outside of the sheltered areas and valleys, along with increasing cloud cover, especially across northwest lower Michigan. That being said, current forecast does suggest frost/freeze across a good chunk of interior northern lower Michigan.

Warm advection begins overspreading northern MI on Tuesday as winds shift to the south and southwest. Consequently, temperatures will be on the increase with most locations back into the 60s. Low pressure system across the Dakotas also marches eastward into Ontario, with the best potential for precipitation during the evening/early overnight hours with the better forcing and "slightly" deeper moisture. This will be especially true across the eastern UP & vicinity. The more noticeable feature will be the increasing winds, especially for northwest lower MI and out over the nearshore waters. Warm advection and the potential for a slightly messy boundary layer may limit some wind production, but it will be breezy to windy day nevertheless, whether on land or across the waters of Lake Michigan.

The rest of the work week will feature breezy conditions and on/off shower chances as energy scrapes the northern portions of the region and the lakes respond accordingly to the cooler temperatures aloft. Temperatures will fluctuate from milder on Wednesday (mid 60s) to a little cooler late week with overnight lows dipping back into the 30s for some.

Rising heights this weekend will result in increasing temperatures, especially the second half of the weekend (70s on Sunday?). Precipitation chances during this time appear to be low.

AVIATION /12Z TAFS THROUGH 12Z TUESDAY/

Issued at 557 AM EDT Mon Oct 5 2026

VFR conditions expected with SCT040-050 cumulus clouds today. Expect dry conditions with breezy northwest winds, 10-15G20KTs on average. Winds diminish late afternoon and into the overnight, becoming more southerly on Tuesday. Mid and high clouds push in late tonight as well.

APX WATCHES/WARNINGS/ADVISORIES

MI...None. MARINE...Small Craft Advisory until 7 PM EDT this evening for LHZ345>348. Small Craft Advisory until 11 AM EDT this morning for LMZ323- 341-342-344-345. Gale Watch from Tuesday afternoon through Tuesday evening for LMZ323-341-342-344>346. Small Craft Advisory until 8 AM EDT this morning for LMZ346. Small Craft Advisory until 11 AM EDT this morning for LSZ322. Small Craft Advisory until 5 PM EDT this afternoon for LSZ321.