textproduct: Grand Forks

KEY MESSAGES

- Showers and isolated thunderstorms are expected this evening and overnight, with lightning being the primary hazard.

- Several periods of showers and thunderstorms are expected Monday through Friday, bringing better chances for wetting rainfall over more of the region.

- There is a level 2 out of 5 risk for severe thunderstorms Tuesday afternoon over the Devils Lake Basin. There are low chances for severe thunderstorms Wednesday into Thursday.

..Showers and Thunderstorms Today into Next Week

Today through Monday: Western flank of the upper ridge remains in place just west of the CWA, but will move slowly east this evening and overnight. The best chance for isolated storms will be along an axis that stretches across southeast North Dakota and west central Minnesota.

Tuesday-Friday: Upper ridging gradually weakens through the week, with upper flow turning nearly zonal by mid week. Shortwave activity will allow for a mention of thunderstorms nearly each day, with isolated to scattered severe thunderstorms Tuesday into Wednesday. Looking at model soundings Tuesday afternoon, storm mode looks to start with supercells in central North Dakota, then transition to more of a hybrid cluster setup as it moves into eastern North Dakota.

AVIATION /00Z TAFS THROUGH 00Z TUESDAY/

Issued at 635 PM CDT Sun May 31 2026

MVFR to IFR ceilings are expected to develop through this evening and overnight from SW to NE, impacting KDVL around 01Z, then KGFK and KFAR during the overnight hours. Showers will become more widespread during that time as well. Winds remaining 5-10kts from the SE through the period.

FGF WATCHES/WARNINGS/ADVISORIES

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