textproduct: Grand Forks

KEY MESSAGES

- Isolated thunderstorms in eastern North Dakota into Minnesota Wednesday overnight into Thursday. No severe weather anticipated.

UPDATE

Issued at 345 AM CDT Wed Aug 19 2026

Weak high pressure over the area early this Wednesday morning giving a clear to partly cloudy sky with patches of cirrus. Light winds allowing temps to drop into the 40s to low 50s. Patchy ground may well make its appearance as we get toward sunrise but anticipate it to be patchy and low lying like what we saw on the past few mornings.

..Showers and Storms Wednesday into Thursday

As a shortwave tracks southeastward out of Canada on Wednesday, showers and a few thunderstorms will develop Wednesday west of this FA, tracking into southeastern ND during the evening. Instability is meager (up to about 500 J/Kg of MUCAPE), which looks to be the major limiting factor for severe storms. The latest SPC day 2 convective outlook has removed this FA from the level 1 out 5 marginal risk, which conceptually makes sense based the poor instability parameter space. Showers and storms will translate eastward Wednesday night. A few more storms may develop Thursday afternoon in MN, but again instability looks to be lacking. Lightning will be the primary threat with any storm that develops.

AVIATION /12Z TAFS THROUGH 12Z THURSDAY/

Issued at 637 AM CDT Wed Aug 19 2026

Today will see a light and variable wind. I left VRB as I couldnt pick on main direction. Speeds 5 kts or less predominate. Cirrus scattered to broken with some higher level CU or AC thrown in today. BKN sky cover tonight of mid clouds. Predominate southeast wind tonight less than 10 kts.

FGF WATCHES/WARNINGS/ADVISORIES

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