textproduct: Omaha/Valley

KEY MESSAGES

- Hot and humid conditions continue today with a Heat Advisory in effect for most of the area.

- A non-zero chance for a severe storm exists this afternoon over the area. Better chances (50-70%) for storms are expected for primarily areas northwest of a line from Columbus to Decatur, Nebraska after 7 pm. These will likely become severe with damaging winds the main threat.

- More showers and storms develop late Wednesday night into Thursday morning, and may be strong to severe with large hail, strong winds, and heavy rain.

LONG TERM /THURSDAY THROUGH MONDAY/

Early Thursday morning, there will likely be more redevelopment of showers and storms along the nose of an H8 LLJ. In addition to some large hail and strong wind gusts, likely will see some heavy rain/flash flooding concerns play out. Warm cloud depths approaching 4000m with PWAT values of 2 inches (well above the 90th percentile) should lead to efficient rainfall producers. Some uncertainty exists on where exactly the best forcing/location for storm development will occur so expect further adjustments made to the forecast. PoPs gradually increase in coverage in the morning, peaking at 60 to 80% by 09z and tapering off by the noon hour. Temperatures cool to the upper 70s to mid 80s for highs.

Sfc high pressure moves into the area for Friday with largely dry conditions and highs in the mid 80s to low 90s. Storm chances (50- 70%) return to the forecast for Saturday, and a few of these could become strong to severe with the Day 5 SPC outlook showing a 15% chance for severe weather. The active pattern continues for Sunday and Monday as another H5 trof ejects from MT/WY southeast. PoPs remain at 15 to 30% these days. Expect cooler highs in the mid to upper 70s.

AVIATION /00Z TAFS THROUGH 00Z THURSDAY/

Issued at 636 PM CDT Tue Jun 9 2026

KOFK: The latest models are showing a potential line of thunderstorms moving through the vicinity of the terminal, mainly between 03Z and 06Z. Through that time, strong wind gusts and maybe some hail is expected. Once that line moves through, a few isolated showers or storms will continue to be possible through around 12Z, with potentially a second line moving through closer to 09Z. Ceilings are expected to improve after 06Z with skies clearing out after sunrise. Southerly winds become westerly by 14Z. There will be some LLWS south of the terminal toward KLNK and KOMA, but KOFK is not currently expected to have that develop.

KOMA: Expect a chance of showers/storms this evening, with the greatest potential between 03Z and 06Z. Models continue to show a potential line of storms which could develop strong wind gusts and some hail. Additional showers/storms may be possible between 09Z and 12Z; however, confidence is lower in potential impacts to the terminal as coverage will be more spotty in nature. LLWS is expected to develop overnight, with impacts between 09Z and 11Z. Additional impacts due to LLWS are anticipated south toward KLNK.

KLNK: Expect a chance of a few showers/storms between 02Z and 05Z in the vicinity of the terminal. A few of these may become strong to severe if they are able to develop. There is still some uncertainty over whether these will materialize and impact KLNK. After 04Z, LLWS is expected to develop, impacting the terminal through around 13Z. A few spotty showers/storms may be possible around 12Z; however, coverage is expected to be limited, so this was omitted from prevailing conditions for now. South winds become southwesterly by 13Z and westerly after 17Z.

OAX WATCHES/WARNINGS/ADVISORIES

NE...Heat Advisory until 9 PM CDT this evening for NEZ011-012-015- 017-018-031>034-042>045-050>053-065>068-078-088>093. IA...Heat Advisory until 9 PM CDT this evening for IAZ043-055-056- 069-079-080-090-091.