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 /18Z TAFS THROUGH 18Z MONDAY/

Issued at 1144 AM CDT Sun Jun 28 2026

VFR conditions are expected to prevail throughout the forecast period, with the winds being the primary concern. Southerly winds will continue at 14-18 kts will gusts of 20-30 kts, occasionally up to 35 kts. The strongest winds are expected towards southeast Nebraska. LLWS will work into the terminals later this evening as a 45-55 kt LLJ moves in around FL018. LLWS will diminish later Monday morning, with southerly wind gusts continuing through the forecast period.

OAX WATCHES/WARNINGS/ADVISORIES

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