textproduct: Grand Forks

KEY MESSAGES

- Warmer temperatures today through Sunday before shower chances and cooler air move in Monday.

- Monitor fire weather conditions. RH values in the 28 to 35 percent each afternoon thru Sunday.

UPDATE

Issued at 636 AM CDT Fri May 1 2026

Updated 12z TAF aviation discussion. No changes to forecast.

UPDATE Issued at 416 AM CDT Fri May 1 2026

Sunnier and warmer conditions into the weekend before another cool down early next week. Fire weather conditions look to stay above critical conditions with RH values upper 20s and 30s each afternoon thru Sunday. But will need to monitor.

..Synopsis

Longwave troughing over eastern Ontario continues to bring N/NW flow aloft to the northern plains with embedded shortwave activity. As the Canadian low degrades over the next three days flow becomes slightly more NW with shortwave activity still percolating through the CWA. This will be mostly a cloud problem but a few stray showers may emerge at times though overall dry inverted V soundings will preclude surface observations of any precip. By Monday a more robust wave brings rain chances with a 30 to 60% chance for more than 0.10" depending on system track.

- Fire weather concerns (low)

With the inverted V soundings and thermal ridging to our west there will be minor fire weather concerns through the next week. Daily minimum RH looks to regularly be 30-40% with more sporadic instances as low as 25% in cases of stronger mixing days (Saturday/Sunday). Winds through the period will be northerly today and Friday at 10-15 mph (gusts to 20) with winds becoming S/SW Saturday at 10-15 mph. Winds varying anywhere from W to N from Saturday afternoon onwards through next week with the strongest winds Monday at 20-25 mph and gusts of 30-35mph. Overall Monday is probably the only day with real fire weather concerns but the prolonged low RH stretch may lead to lower end concerns even before then with daily highs this weekend in the mid to upper 60s for most.

AVIATION /12Z TAFS THROUGH 12Z SATURDAY/

Issued at 636 AM CDT Fri May 1 2026

For once, it should be a good day for flying with light winds today, predominately north or northwest under 10 kts, light and variable this evening before turning south to southeast by 12z Saturday. Mainly clear sky....some cirrus around.

FGF WATCHES/WARNINGS/ADVISORIES

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