textproduct: Grand Forks

KEY MESSAGES

- Scattered showers and thunderstorms are expected across much of the area Monday afternoon and evening. A few storms could become strong and produce hail and frequent lightning.

..Synopsis

The overall pattern across the Northern Plains and Upper Midwest continues to support cooler temperatures and continued chances for showers and thunderstorms for the next week. H5 height anomalies remain quite low north the Great Lakes through the end of next week, with shortwaves traversing northwest flow.

The first of these waves arrives Monday, bringing diurnally driven scattered showers and thunderstorms during the afternoon and evening. Low level lapse rates are expected to be nearly dry adiabatic, which will combine with low freezing heights to present a hail threat during the strongest storms. Most thunderstorm activity should remain sub severe; however, hail up to 1 inch in diameter cannot be ruled out.

Heading into Tuesday, another weak shortwave traverses a baroclinic boundary, bringing additional chances for showers and thunderstorms as the larger boundary lifts northeastward into the area. Reinforcing cooler air moves into the Northern Plains on Wednesday as highs struggle to reach 70 degrees in most places. Additional rain chances emerge on Thursday and Friday, but will be dependent on the timing of shortwave activity.

AVIATION /18Z TAFS THROUGH 18Z MONDAY/

Issued at 1225 PM CDT Sun Jun 14 2026

VFR conditions prevail through the period at all TAF sites. Winds this afternoon are expected to continue out of the northwest at 10-15 knots, with gusts ranging from 20-30 knots. Look for gusts to diminish late this evening at all TAF sites. Heading into Monday morning, winds shift to the west, then southwest at 10-15 knots.

FGF WATCHES/WARNINGS/ADVISORIES

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