textproduct: Grand Forks

KEY MESSAGES

- There is a level 2 out of 5 risk for severe weather Friday afternoon and evening, with golf ball sized hail and 70 mph wind gusts the primary threats. Isolated tornadoes are possible. - Increasing temperatures this weekend with potential for heat impacts, especially on Sunday.

..Heat this weekend

Ridging and ensembles all point to a return to heat impacts Saturday and especially Sunday. Dew points will be in the 60s, bringing heat index values into the 90s for Saturday and above 100 for Sunday. While heat index values will be meeting criteria for advisory mainly Sunday, there are other indicators of high heat impacts. Wet bulb globe temperatures on Saturday will be well into the 80s, and mid 80s by Sunday. Heat risk should be well into the major category over the weekend, and there is a 30 to 50 percent probability of extreme heat risk for the southern Red River Valley on Sunday. Not quite ready for headlines, but will have to watch this weekend closely.

AVIATION /12Z TAFS THROUGH 12Z SATURDAY/

Issued at 633 AM CDT Fri Jul 24 2026

Low to mid level stratus moved into the area overnight, with MVFR ceilings prevailing at KFAR and KBJI. As the stratus continues moving northeast, KGFK, KDVL, and KTVF could see a period of MVFR ceilings prior to the layer diminishing later this morning. Winds are expected to increase out of the southwest by mid morning, with gusts upwards of 25-30 knots heading into midday. For this afternoon, scattered thunderstorm activity could bring aviation impacts to most locations; however, confidence in coverage and location remains low, thus went with PROB30 through most of the mid to late afternoon. If storms are able to form, they could become severe and produce large hail, damaging wind gusts, and isolated tornadoes.

FGF WATCHES/WARNINGS/ADVISORIES

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