textproduct: Omaha/Valley

KEY MESSAGES

- Areas of fog developing overnight, some of which could be dense, limiting visibilities to less than half a mile.

- Periodic, low precipitation chances (15-30%) Monday night through Tuesday night. A wintry mix could fall at times, but is currently favored to remain light with little to no impact.

- Mild temperatures stick around this week, with highs in the 30s and 40s through Wednesday and 40s and 50s from Thursday through Saturday. These warmer temperatures could allow river ice to break up and move, increasing the risk of ice jams.

DISCUSSION

Issued at 224 PM CST Sun Feb 1 2026

Tonight and Monday:

Overnight snowfall is quickly disappearing this afternoon as temperatures have warmed into the 40s as of 2 PM. A shield of low clouds is gradually overspreading northeast NE and western IA with latest model data suggesting the clouds will remain in the same general vicinity overnight. To the south of the clouds and in locations of recent snow melt, decreasing winds will allow for fog formation late tonight into Monday morning with visibilities falling below a half mile at some locations.

The morning fog and lingering clouds will slow heating Monday with highs topping out in the 30s to low 40s.

Monday night through Wednesday:

The 12z global models remain in good agreement in the progression of a shortwave trough through the mid-MO Valley Monday night into Tuesday morning, followed by additional vorticity maxima from Tuesday into Wednesday. Associated QPF fields remain light and spotty in our area, which is consistent with the low PoPs of 15-30% indicated in the forecast. Forecast soundings show periods of deepening saturation in the lowest 5-10 kft, but below the level of ice introduction. As such, the potential will exist for a wintry mix to fall during periods when boundary-layer temperatures remain below freezing. However, any precipitation is expected to remain light and not cause an impact to travel.

Daytime highs could be limited by cloud cover in some areas with readings in the 30s Tuesday, and 30s to low 40s and Wednesday.

Thursday through Saturday:

An amplified mid-level ridge positioned over the western U.S. Thursday morning is forecast to weaken while shifting into the central U.S. this weekend. In the low levels, westerly, downslope winds Thursday will contribute to considerably warmer temperatures with highs in the 50s forecast at many locations. The models indicate a front moving through the area Friday with highs mainly in the 40s. Similar conditions are expected Saturday.

The warmer daytime temperatures will begin to affect ice cover/depth on area rivers. However, with overnight lows remaining below freezing and no rain in the forecast, the ice break up could be a gradual process.

AVIATION /00Z TAFS THROUGH 00Z TUESDAY/

Issued at 519 PM CST Sun Feb 1 2026

VFR to MVFR ceilings are expected at the terminals this evening into tonight as some lower clouds move in from the northwest. Models are showing potential for some fog development at KOFK. KLNK may also have some fog issues heading into daybreak tomorrow as light winds, recent snow melt, and fewer clouds will allow for its development. Expect light and variable winds overnight, gradually becoming easterly/southeasterly Monday morning.

OAX WATCHES/WARNINGS/ADVISORIES

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