textproduct: Omaha/Valley

KEY MESSAGES

- Temperatures warming into the 60s and 70s today through Monday.

- Occasional spotty shower and storm chances (30-60%) Sunday night through Wednesday. Highest chance across southeast Nebraska/far southwest Iowa Monday night - early Tuesday.

- Some frost potential for Wednesday and Thursday mornings, especially across northeast Nebraska.

DISCUSSION

Issued at 1122 PM CDT Fri May 1 2026

Today through Sunday...

Clear skies and light winds allowed cold air to plunge into the region overnight. Morning temperatures plummeted into the upper 20s across parts of northeast Nebraska and western Iowa, with low to mid 30s closer to the Kansas and Missouri borders.

Westerly winds will continue to advect warmer air down from the High Plains this afternoon, as a surface high slips south into Kansas. By noon temperatures had rebounded into the upper 50s and low 60s.

Tonight, a weak, dry cold front will dip south through the region. While a handful of CAMs show spotty showers with the frontal passage overnight, forecast soundings indicate a notable amount of low level dry air that will likely eat any rain before it reaches the surface. If anything does somehow make it all the way to the ground, expect little more than trace amounts.

Temperatures will be more mild tonight, despite the northerly wind shift. Over night lows are only expected to fall into the mid and upper 40s, giving our plants a nice break from freezing temperatures. An upper ridge to our west will begin to break down, as a low pressure system moves into the west coast, and a northern trough begins to shift south out of Canada. Patchy cloud cover with the passing front could inhibit our warm-up potential slightly Sunday. Afternoon highs are forecast to reach the low 70s over northeast Nebraska, and into the mid 70s near the NE/KS border, as warm air advection prevails.

Monday and Beyond...

Slightly warmer temperatures are forecast for Monday, with highs reaching the mid to upper 70s and low 80s. Off-and-on rain chances (30-60%) will return to the forecast Monday through Thursday, as the cut off low near California attempts to phase with the longwave trough dropping into the nation's midsection. A boundary lying just to our south, across Kansas and Missouri, will be the focus point for precipitation. While widespread wetting rainfall looks to remain just south of our forecast area, we will still have a few showers dot the CWA. The greatest chance for precip within our borders currently looks to be Monday night into Tuesday across southeast Nebraska and southwest Iowa.

Temperatures will likely take a bit of a dip early to mid week, depending on the track of the main low to our north. Highs are currently expected to drop back into the 50s and 60s Tuesday and Wednesday, with at least some potential for a frosty morning or two across northeast Nebraska Wednesday and Thursday.

Temperatures will likely rebound Thursday afternoon and beyond as the trough shifts east and a ridge approaches from the west.

AVIATION /12Z TAFS THROUGH 12Z SUNDAY/

Issued at 532 AM CDT Sat May 2 2026

VFR conditions will prevail through the period. Light westerly winds will become southerly this evening, around 23Z. A few gusts up to 20- 25 kts will be possible overnight, as speeds increase ahead of a weak cold front. Winds behind the front will shift to the north by 11Z at KOFK, and closer to 12Z-14Z at KOMA and KLNK. LLWS will be possible at all three TAF sites between 06-12Z tonight.

OAX WATCHES/WARNINGS/ADVISORIES

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