textproduct: Omaha/Valley

KEY MESSAGES

- Conditional threat for severe storms this afternoon through 9 pm. If storms can form, they'd likely be severe with damaging winds and a tornado or two.

- Heavy rain will accompany storms this afternoon through 9 pm. Rainfall rates of 2-3 inches per hour will result in flash flooding over areas that received heavy rainfall the past 3 days.

- Periodic chances for showers and thunderstorms will continue through Saturday morning and again after Tuesday, with a few storms potentially becoming strong to severe.

LONG TERM /SUNDAY THROUGH THURSDAY/

Cooler temperatures arrive behind the front Sunday and Monday with highs in the 70s and 80s. High pressure moves in for those days too which should help keep us mostly dry until late Monday when more rain chances arrive (30-50% in northeast Nebraska) as another H5 wave approaches the area. Continued waves approaching from the northwest will lead to continued storm chances through the rest of the extended period. Tuesday night into Wednesday appears to be the best chance areawide (50-70%) as a more powerful wave rides the northwesterly flow into the area. These storms could be strong to severe as highlighted by the various machine learning algorithms. Highs cool to the 70s and 80s by Wednesday and Thursday.

AVIATION /18Z TAFS THROUGH 18Z SATURDAY/

Issued at 1242 PM CDT Fri Aug 14 2026

Scattered to overcast ceilings continue to flirt with MVFR and VFR range this afternoon as a widely scattered area of showers and some thunderstorms moves east. Have continued mentions through TEMPO groups of -SHRA at KOMA and KLNK through 20z. There could be more redevelopment of scattered thunderstorms after 19z which could be strong to severe, but these will likely stay away from KOMA. Mist/fog will likely develop after 06z tonight and affect KOFK, bringing visibilities and ceilings to IFR/LIFR. Uncertainty exists on how far south the fog will make it, so have not included mentions at KOMA and KLNK with this issuance, but should still see ceilings in the MVFR range. Ceilings and visibilities will slowly improve by mid to late morning. Finally, could see some redevelopment of storms after 12z at terminals but chances remain less than 50% for inclusion at this time.

OAX WATCHES/WARNINGS/ADVISORIES

NE...Flood Watch until 9 PM CDT this evening for NEZ015-033-034-044- 045. IA...Flood Watch until 9 PM CDT this evening for IAZ043-055-056-069.