textproduct: Grand Forks

This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.

KEY MESSAGES

- Frost chance exists Monday night/early Tuesday for northwest MN.

- With the exception of Wednesday night, a dry period ahead.

..Next precipitation chances Wednesday night and Thursday

Shortwave trough moving into the western Dakotas Wednesday will progress quickly into the Great Lakes by Thursday. Instability is pretty weak at less than 500 J/kg, so severe is not expected although some thunderstorm activity is not completely out of the question. Main impacts look to be rain, with 40 to 60 percent probabilities of over a quarter of an inch in portions of our western and southern counties.

AVIATION /00Z TAFS THROUGH 00Z TUESDAY/

Issued at 655 PM CDT Sun Sep 20 2026

The main question overnight is if fog will form. There remains uncertainty on its coverage and exact location. Model guidance shows slightly higher probabilities for fog at KGFK and KBJI compared to elsewhere. With BR already introduced in previous TAF issuance's at these two terminals, maintained its inclusion in this set. However, predictability remains too low to introduce BR or FG at any other terminals at this time. Otherwise, conditions will remain VFR for Monday, with easterly wind of up to 10 knots during the afternoon.

FGF WATCHES/WARNINGS/ADVISORIES

ND...None. MN...None.

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