textproduct: Omaha/Valley

KEY MESSAGES

- Temperatures fall this evening into the overnight and winds diminish. Most see frigid lows ranging from 0 to -10F by Thursday morning. Wind chills of -10 to -20F are expected north of Interstate 80 Thursday morning as wind speeds increase again.

- Dry and cold conditions expected for Thursday. Highs warm to the low to mid 30s for Friday.

- Cold temperatures return Saturday and Sunday. A 20-40% chance of snow exists on Saturday. Highs warm to the upper 30s to mid 40s Monday and Tuesday

LONG TERM

/FRIDAY THROUGH TUESDAY/

H5 northwest flow continues on Friday as a weak shortwave trof rounding the base of more potent longwave over northern Manitoba into western Ontario ejects southeast. Current model guidance shows the best Q-vector convergence and implied forcing for ascent primarily north and east of the area. Moisture appears limited too, so have kept latest NBM solution which keeps the area dry. With the aforementioned H8 baroclinic zone moving northeast on Thursday, Friday should be warmer with most seeing highs in the low to mid 30s and maybe pushing 40F across our far western fringes.

The parent H5 longwave trof should help induce cyclogenesis across northern Ontario, and the sfc cold front from said feature should extend well southeast into the Northern Plains Friday. The front should be at our doorstep by Friday night, crossing the area early Saturday. With more H8 cold air advection funneling in, expect temperatures to dip on Saturday with highs in the mid 20s to low 30s north of Interstate 80, and mid 30s near the Nebraska/Kansas border.

A shortwave will eject from the Wyoming/Montana area toward the Nebraska Panhandle/northeast Colorado on Saturday morning. Ensemble and deterministic guidance keys in on a developing sfc low with the feature, but quite a bit of spread exists with where the sfc low will track. Notably, the EPS ensemble shows the most spread with the sfc low track, potentially taking the low into eastern Nebraska, while the majority of GEFS and CMC ensembles keep the sfc low well west of the area. Regardless of the low track, H7-H5 Q-vector convergence and implied lift should overspread a good chunk of the forecast area on Saturday. The mid level wave and sfc feature should have some moisture to work with resulting in a 20 to 40% chance for snow across the forecast area. Deterministic and ensemble guidance shows varying locations in where the snow band will develop at this time as expected, likely within the deformation zone of said low. Regarding snowfall amounts, latest LREF suite suggests most areas seeing less than a half inch at best, primarily across northeast Nebraska. Details regarding this disturbance track and snowfall amounts are likely to change in the coming days, so please stay tuned to the forecast for updates.

Chilly temperatures return for Sunday as we'll be behind the front, with most seeing highs in the mid teens to mid 20s. Lows Saturday night and Sunday night will be frigid in the single digits to low teens. Temperatures are expected to warm again to the upper 30s to mid 40s by Monday and Tuesday as 1000-500mb thicknesses increase and overspread much of the Central Plains.

AVIATION /06Z TAFS THROUGH 06Z FRIDAY/

Issued at 1058 PM CST Wed Dec 3 2025

Wind speeds continue to weaken as surface high pressure settles into the region. VFR conditions are expected to prevail, but a thin band of MVFR ceilings is passing over LNK currently. This should quickly move out of the TAF site. Overnight, winds become light and variable with clearing skies. As surface high pressure moves east of the area during the morning, southerly winds return. Wind speeds gradually increase by afternoon with a few gusts possible.

OAX WATCHES/WARNINGS/ADVISORIES

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