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 /18Z TAFS THROUGH 18Z MONDAY/

Issued at 1225 PM CDT Sun Sep 20 2026

Some IFR ceilings hanging around KTVF, but that should scatter out in the next few hours and other TAF sites have already gone VFR. Biggest question is if we will get fog redeveloping late tonight into Monday morning. Models are not very favorable, but performed poorly last night. Best chances the HREF has for fog probability and visibility less than half a mile are at KGFK and KBJI at 20 to 30 percent. Think there will be fog somewhere with light east to southeast winds, but confidence is low on where. For now have 2-3SM visibility in the TAFs tomorrow morning at KGFK and KBJI, but will likely adjust as fog develops or does not overnight.

FGF WATCHES/WARNINGS/ADVISORIES

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

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