Severe Storm Risk - Bismarck, ND

• Severe Storm Risk

  Sun 08:00 PM - Mon 07:00 AM

  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 CENTRAL AND NORTHERN PLAINS SUMMARY Thunderstorms capable of producing isolated severe gusts and hail may occur this evening across parts of the central and northern Plains. Central and Northern Plains Southwest mid-level flow is evident on water vapor imagery over the western U.S., with a subtle shortwave trough moving through the central Rockies. Ahead of the trough, a moist airmass is located over much of the central and northern Plains, where surface dewpoints are generally in the lower to mid 60s F. Due to surface heating, most of the airmass has become moderately unstable. Scattered thunderstorms are ongoing along the western edge of the moist airmass from eastern Colorado into southwest Nebraska and eastern Wyoming. This activity will continue to move northeastward across the central and northern High Plains this evening, with a gradual expansion in coverage expected. WSR-88D VWPs near the instability axis have supercell wind profiles, with veering winds in the low-levels and 0-6 km shear in the 35 to 40 knot range. In addition, forecast soundings have low to mid-level lapse rates around 8 C/km, which is also evident on the 00Z Rapid City sounding. This environment will support an isolated severe threat this evening. Hail and marginally severe wind gusts will be the primary threats.