textproduct: Omaha/Valley

KEY MESSAGES

- A strong to severe storm possible overnight in far northeast Nebraska.

- Dangerous heat builds Sunday and Monday, with heat index values reaching 105 to 110 degrees in some areas.

- Hot and humid weather continues into next week, with occasional evening and overnight thunderstorm chances.

BEYOND

Current forecast has Wednesday cooling a couple of degrees before ridging reasserts its control over the Corn Belt for the holiday weekend, driving high temps and heat indices to dangerous levels once again. Predictability for severe weather and rain chances will be mostly dependent on subtle shortwaves, sfc boundaries, or influence from previous convection. I'm not sure which days it will be, but additional days of heat headlines are very likely.

AVIATION /06Z TAFS THROUGH 06Z MONDAY/

Issued at 1203 AM CDT Sun Jun 28 2026

MVFR cigs have developed at the terminals this evening. Expect them to clear from south to north overnight, clearing at KLNK fairly quickly in the next hour or two. LLWS potential will be greatly dependent on how well strong winds aloft can mix down to the surface. We're already seeing gusts to 22-23kt at KLNK so have removed LLWS from KLNK as I expect it will keep gusting overnight. KOFK has the best potential for seeing several hours of LLWS until around 11Z when winds should be weakening at this site. Expect gusty winds to persist through Sunday afternoon at KOMA and KLNK, with gusts 20 to 25kt out of the south. Skies become clear in the morning and stay mostly clear through the end of the TAF period.

OAX WATCHES/WARNINGS/ADVISORIES

NE...Heat Advisory from 1 PM Sunday to 9 PM CDT Tuesday for NEZ015- 034-044-045-050-051-065>068-078-088>093. Extreme Heat Warning from 1 PM Sunday to 9 PM CDT Tuesday for NEZ052-053. Heat Advisory from 1 PM to 9 PM CDT Sunday for NEZ011-012. IA...Heat Advisory from 1 PM Sunday to 9 PM CDT Tuesday for IAZ043- 055. Extreme Heat Warning from 1 PM Sunday to 9 PM CDT Tuesday for IAZ056-069-079-080-090-091.