textproduct: Omaha/Valley

KEY MESSAGES

- Dangerous heat is expected to continue through at least Monday, with heat index values reaching 105 to 110 degrees in some areas. Overnight minimum heat index values remain in the upper 70s.

- A few strong to severe storms are possible Monday and Tuesday evening, especially across northeast Nebraska.

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

LONGER RANGE

Finding ourselves in a possible 'ring of fire' along the edge of a heat dome leaves the area open to the threat of daily convection. Machine-learning forecasts based on the EC and GFS keep the daily threat of severe weather in the forecast area at 10-20% through Saturday. Expect occasional convective outlooks.

For this reason, the heat headlines (advisory/warning) have yet to be extended. Convective chances and a front in the area introduce too many variables for much certainty in temp forecasts. While there may be an occasional break in the heat due to unexpected cloud cover, rain, or thunderstorm outflow, the overall pattern will remain conducive to hot summer temperatures.

Temps will begin to climb again by the end of the week when western CONUS ridging is expected to redevelop.

Saturday night brings a good chance (35-50%) of precip as the remnants of tonight's western CONUS trof finally ejects east. Things will cool behind that trof. At least temporarily.

AVIATION /18Z TAFS THROUGH 18Z TUESDAY/

Issued at 1216 PM CDT Mon Jun 29 2026

VFR conditions persist at the terminals this afternoon. Expect a possibility for a few thunderstorms between 03Z and 07Z at KOFK; however, timing and location of storm development is still a little up in the air. KOMA and KLNK have a lower chance of thunderstorm impacts tonight. LLWS is expected to develop at KOMA and KLNK after 04Z, continuing through around 12Z.

OAX WATCHES/WARNINGS/ADVISORIES

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