textproduct: Grand Forks

KEY MESSAGES

- Temperatures dropping below 36 degrees will bring areas of frost to portions of northwestern and west central Minnesota tonight into Monday morning.

..Frosty temperatures tonight

Surface high pressure extending from Manitoba into the Dakotas will begin to shift eastward tonight. Cloud cover from the reinforcing shortwave currently digging into northeastern MN will also shift eastward, although can't completely rule out some more cirrus coming in from the west towards morning. Best chances of temps bottoming out below 36 degrees are in the Lake of the Wood region and in west central MN. NBM has probabilities of getting below 36 of 60 to 70 percent in some areas, but at this point 32 and below seems unlikely. Most of that area is boggy and unlikely to have impacts, but there are some areas in the western portions of the advisory area that have more population. Further west into the Red River Valley and eastern ND, there will be more wind as winds start to pick up from the southeast as the high pulls away. Not completely ruling out frost formation particularly near the Canadian border, but not confident enough to include quite yet.

AVIATION /00Z TAFS THROUGH 00Z MONDAY/

Issued at 624 PM CDT Sun Oct 4 2026

VFR conditions are expected through the TAF period across eastern ND and northwest MN. Surface high pressure will build east through the night, and winds are already decreasing with sunset (expected to become light and variable or even calm). Winds pick back up from the southeast Monday as low pressure builds to the west and daytime gusts 25-28kt are expected during peak mixing. There is a low chance for periodic gusts to 30kt in eastern ND. A weak mid level wave may bring some virga or sprinkles to southeast ND/west central MN Monday (15-03Z west to east).

FGF WATCHES/WARNINGS/ADVISORIES

ND...None. MN...Frost Advisory from 1 AM to 9 AM CDT Monday for MNZ005-006-008- 009-016-017-023-024-032.