textproduct: Omaha/Valley

KEY MESSAGES

- Hot temperatures in the upper 80s and low 90s with dry conditions are expected Today and Thursday.

- A shift in the weather pattern marks the return of daily shower and thunderstorm chances beginning Thursday evening and lasting through this weekend.

- Dry weather and near normal temperatures are anticipated to develop by early next week.

DISCUSSION

Issued at 1233 PM CDT Wed May 27 2026

A slow pattern shift is beginning to take shape across the CONUS. At the moment, a large upper-level low pressure is located over the Sierras, with a shortwave extending out into the southern Plains, a second trough is located over eastern Canada, and a split-ridge is sitting over the northern Plains and Southeast. Under this split ridge, our temperatures remain hot today into tomorrow with highs reaching the upper 80s and lower 90s areawide. These temperatures are around 10 degrees above normal for the end of May. Under the influence of the split-ridge, any convection is likely to be suppressed and conditions remain dry as a result.

Our hot and dry weather begins to loosen its grip by Thursday evening. As the upper-low over the Sierras begins to weaken, lobes of enhanced lift will swing out across the Plains into this weekend. These will help to foster daily shower and thunderstorm chances. Initially, rain chances will be focused across southwestern portions of the area. Rain chances expand into eastern Nebraska on Friday, and the remainder of the area by this weekend. The overall probability of precipitation remains modest with most locations expecting a low (15-40%) chance each afternoon and evening. The best chance of precipitation remain west of the area over central Nebraska. Thankfully, mid-level ridging will limit wind shear keeping the threat of organized severe weather to a minimum. Temperatures will become milder as we return to the lower 80s across the area.

Heading into next week, a blocking pattern may take shape. A trough over the western CONUS, a building ridge over the Plains, and another trough over the eastern CONUS sets the stage for stagnant weather. In this scenario, temperatures are anticipated to be near- normal in the lower 80s with the worst of the heat displaced to the north and west of the region. Dry conditions are almost inevitable with convection becoming suppressed under the ridge. Hopefully, this stagnant patter does not stick around too long.

AVIATION /18Z TAFS THROUGH 18Z THURSDAY/

Issued at 1210 PM CDT Wed May 27 2026

VFR conditions continue through the TAF period. Light southeast winds this afternoon with a few cumulus based around 7-9 kft. Winds should become light and a bit variable tonight. Increasing upper-level clouds overspread the region also.

OAX WATCHES/WARNINGS/ADVISORIES

NE...None. IA...None.