textproduct: Grand Forks

KEY MESSAGES

- Unsettled week ahead. Shower and t-storm chances spread east Tuesday late into Wednesday, then again Friday into Saturday.

- There is a level 2 out of 5 risk for severe thunderstorms Tuesday late afternoon and evening over the Devils Lake Basin. - There is a level 2 out of 5 risk for severe thunderstorms Wednesday afternoon and evening over eastern North Dakota and the Red River valley.

UPDATE

Issued at 651 AM CDT Mon Jun 1 2026

One main band of rain is lifting north-northwest thru the area now in far NE ND extending southeast to east of Grand Forks. Since 06z this rain band has put down upwards of 0.50 to 0.80 rainfall Langdon thru St Thomas to Alvarado to west of Fosston.

Other showers are south of this main band but more isolated.

Clearing is working northeast gradually thru central ND associated with a southwest wind shift and drier mid level airmass working in from the west and southwest. Anticipation is that main precip chances in NE ND and NW MN is this morning but cannot rule out some chances into the aftn.

Updated graphics for the day 2 (Tues) and day 3 (Wed) slight severe risk.

UPDATE Issued at 1154 PM CDT Sun May 31 2026

Areas of light rain showers continue to stream into the area from the southeast, with weak thunderstorms now starting to make their way into southeast North Dakota. This will continue to be the case through the overnight, with weak thunderstorms liable to spread elsewhere in our region, but still low in coverage (more isolated). Otherwise, light winds and cloudy skies dominate the forecast tonight into Monday morning.

..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 /12Z TAFS THROUGH 12Z TUESDAY/

Issued at 651 AM CDT Mon Jun 1 2026

Mix bag of conditions to start today with IFR vsbys and ceilings over northeast ND and parts of the northern RRV. VFR conditions elsehwere with mostly mid clouds. Light winds all areas south to southeast under 10 kts. The IFR conditions will mix out and become MVFR and then VFR going into the early afternoon in NE ND. Light winds all areas though into tonight, south to southeast 5 to 8 kts.

FGF WATCHES/WARNINGS/ADVISORIES

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