textproduct: Grand Forks

KEY MESSAGES

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

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

UPDATE

Issued at 411 AM CDT Sun Sep 20 2026

Patchy fog in parts of NW MN this morning and could expand some by sunrise. Typical ground fog and seems to be around Bemidji to Fosston to Mahnomen to Park Rapids areas and around Karlstad and Lancaster MN at 09z. So added that to the grids thru 13/14z.

..Light precipitation chances this evening

Light rain showers near the frontal boundary coming down have dissipated, but many of the CAMs, including the HRRR and RAP, have redevelopment between 00Z and 03Z a bit further south. Amounts and impacts will be minimal, a few hundredths at most, but can't rule out a few sprinkles before midnight. The main upper low still out over the Rockies starts to come east into the Plains, but ensemble members are in good agreement on impacts remaining to the south of our area. Only locations right near the SD border have any probability of 0.01 of rain, and less than 20 percent at that. Sunday and the first part of the work week look to remain dry, but a shortwave coming out late Wednesday into Thursday could bring some light precipitation. Decent probabilities of around 60 percent for at least 0.01 of rain, but very low chances for anything more than half an inch.

AVIATION /06Z TAFS THROUGH 06Z MONDAY/

Issued at 1146 PM CDT Sat Sep 19 2026

Overnight, periods of MVFR are forecasted at KBJI, otherwise terminals should remain VFR. Northerly/variable winds tonight of under 5 knots will give way to north/northeast winds on Sunday of up to 12 knots. Gusts are not expected. Winds will become light and variable again after sunset Sunday evening.

FGF WATCHES/WARNINGS/ADVISORIES

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