Weather Alerts For South Omaha, NE

Closest strike: 27.23 miles Monitor Storms You are not at immediate risk, but frequently check WeatherBug to see if storms are moving towards you. Be aware that new storms can also form with little notice.

There is a Marginal Severe Storm Risk for your location. Continue reading for today's outlook from the National Weather Service's Storm Prediction Center. -------------------- National Severe Storm Outlook THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE MID MISSOURI VALLEY...CENTRAL HIGH PLAINS AND INTERMOUNTAIN WEST SUMMARY Thunderstorms with isolated severe wind gusts will be possible this evening across parts of the mid Missouri Valley and Central High Plains. A few severe wind gusts and hail may occur in parts of the Intermountain West. Mid Missouri Valley An upper-level ridge is currently present in the central U.S, with a 30 to 40 knot low-level jet located near the ridge in the mid Missouri Valley. Isolated thunderstorms have developed early this evening in eastern Nebraska, near the axis of the low-level jet. Surface dewpoints in eastern Nebraska are in the lower to mid 70s F, with the RAP showing MLCAPE in the 1000 to 2000 J/kg range. While the 00Z Omaha sounding has 0-6 km shear of 20 to 25 knots, deep-layer shear is likely a bit stronger southward in the vicinity of the low-level jet. This could be enough for an isolated wind-damage threat. The threat may develop northeastward into western and central Iowa this evening as low-level flow and convective coverage both increase. Central Plains An anti-cyclonic flow pattern is present over much of the north-central U.S. The eastern extension of a mid-level shortwave trough, evident on water vapor imagery, is located over east-central Colorado. Scattered thunderstorms are ongoing just ahead of the trough from northeast Colorado into southwest Nebraska, where the RAP has MLCAPE in the 1000 to 2000 J/kg range. The WSR-88D VWPs at Goodland and Cheyenne have 0-6 km shear in the 30 to 40 knot range, suggesting that an isolated severe threat will be possible early this evening. Severe wind gusts will be the primary threat. Intermountain West On water vapor imagery, southwesterly mid-level flow is present from the central Rockies into the central High Plains. A mid-level shortwave trough appears to be located from near the Unita Mountains in northeast Utah eastward into the central Rockies of Colorado. Large-scale ascent associated with the trough is supporting scattered thunderstorm development. The RAP shows the strongest instability across northeast Utah and northwest Colorado, where moderate deep-layer shear and modestly steep lapse rates are evident on RAP analysis. This could be enough for an isolated potential for severe wind gusts and hail over the next few hours.

Pollen Index: 9.2 Pollen Level: medium-high Predominant Pollen: Ragweed, Chenopods and Nettle. The quantity of pollen grains in the air for Saturday will be falling in the moderate range. This lower level is caused by falling temperatures, rising humidity, and expected precipitation in the morning, afternoon and evening which tends to wash pollen out of the air. Relief is in sight.