textproduct: Grand Forks

KEY MESSAGES

- Level 2 out of 5 risk late afternoon and evening today for the Devils Lake area and a level 1 out of 5 risk tonight into the northern Red River valley. Hail and wind are the primary risk with any storms.

- Dangerous heat index values likely this weekend into Monday. The hottest temperatures are expected Sunday and Monday, with heat indices of 100 to 110 degrees likely.

..Dangerous Heat This Weekend into Monday

Strong ridging is in the process of strengthening over the Central Rockies, and is expected to build to the north and east through this weekend. Anomalous heights upwards of 600dM are being highlighted by the majority of ensemble members, allowing temps to climb well into the 90s on Saturday, then approach the 100 degree mark on Sunday and Monday. With dew points in the upper 60s to low 70s, heat index values are expected to reach 100 degrees or higher, especially Sunday and Monday as the ridge axis aligns atop the Northern Plains. Wet bulb globe temps will climb into the upper 80s Sunday and Monday, signifying high to extreme categorical heat risk both days.

AVIATION /00Z TAFS THROUGH 00Z SUNDAY/

Issued at 551 PM CDT Thu Jul 9 2026

An area of low pressure and its warm and cold front will slide east across North Dakota this evening giving a line a thunderstorms that will likely have IFR conditions in it with +TSRA. This line is expected to dive south and away from our terminals after 06Z. At that time, shower activity may remain overnight, but the thunderstorm threat decreases. Winds will be southerly overnight before the cold front passes and turn more northerly Friday after the cold front passes. Some chance for more shower activity late in the TAF period, but the chances are much lower.

FGF WATCHES/WARNINGS/ADVISORIES

ND...Extreme Heat Watch from Sunday morning through late Monday night for NDZ006>008-014>016-024-026>030-038-039-049- 052>054. MN...Extreme Heat Watch from Sunday morning through late Monday night for MNZ001>005-007-008-013>015-029-030-040.