textproduct: Omaha/Valley

KEY MESSAGES

- Stretch of hot and dry weather will last through at least the upcoming week. Heat indices will be around 100 at times.

- Patchy fog may develop a few mornings this week.

DISCUSSION

Issued at 149 PM CDT Sat Jul 11 2026

Pretty quiet across the area today as a shortwave trough was pushing off to the southeast and large-scale upper level ridging was building in. While there were a few clouds around, they were showing signs of dissipating as the ridge was building in, with temperatures as of 1 PM mostly in the mid 80s.

As the ridge amplifies through the week, we'll continue a warming trend, with widespread highs in the 90s by Monday, with a few spots making a run at 100, especially near the NE/SD border where warmer air aloft will be present. While guidance keeps the primary plume of 70+ dewpoints mostly to our east, we all know what corn can do this time of year, so think we'll have at least mid to upper 60s dewpoints across a good chunk of the area most days. This will allow heat indices to climb toward 100. We'll see how things trend in the coming days, but if dewpoints end up being higher, we may see a day or two reaching heat advisory criteria.

By late in the week, guidance suggests the primary ridge axis will slide back west while the warmer air aloft pushes slightly southward as a shortwave trough rounds the top of the ridge. Consensus suggests we'll continue to warm with highs in the mid to upper 90s and few 100s, but given our proximity to the shortwave, not highly confident in that, as some clouds, or even precip could clip the area. For now, precip chances remain below 10%, but we'll definitely want to keep an eye on trends, as temperatures could be impacted.

Otherwise, another thing to keep an eye on will be patchy fog on some mornings given light winds and clear skies. At this time, model soundings suggest winds aloft will stay up a bit compared to this morning, so wouldn't expect widespread development. However, with the extra moisture from evapotranspiration, the potential for at least a little fog is definitely there.

AVIATION /00Z TAFS THROUGH 00Z MONDAY/

Issued at 620 PM CDT Sat Jul 11 2026

VFR conditions are in place to start the TAF period, with light winds at under 10 kts expected to decrease in speed further over the next 6-8 hours. Direction-wise, they'll stay out of the southeast and bottom out below 5 kts, which could favor fog development once again. Confidence is not high enough to include in the TAFs at this time, but if it were to occur, KOMA/KLNK would be most likely to see it from 10-12z. Otherwise, winds will increase tomorrow morning but remain in the 5-10 kt range in terms of speed with little-to-no cloud cover forecast for tomorrow.

OAX WATCHES/WARNINGS/ADVISORIES

NE...None. IA...None.