National Weather Service United States Department of Commerce

Locally Heavy Rainfall for the Carolinas; Thunderstorms and Fire Weather Concerns for Intermountain West

Heavy rainfall from scattered thunderstorms is expected across the Southwest, Intermountain West, and Plains. Isolated dry thunderstorms may initiate additional fires across the west. The coastal Carolinas may experience flash floods in the coming days due to repeated thunderstorms. Additionally, a wave of intense summer heat will hit the Southern Plains and central Gulf Coast States this week. Read More >

Overview

A very warm and humid airmass developed across the region during the late afternoon hours of Tuesday, June 13. A cold front moving through the Plains ahead of a very large upper level disturbance was the driving force for scattered thunderstorm development over the Missouri River valley region of central South Dakota and north central Nebraska.

Supercell thunderstorms, some of which would routinely split into two storms, quickly developed producing large hail, damaging winds, and a few very weak tornadoes/gustnadoes. These scattered storms quickly merged into a linear band of storms as they move eastward through South Dakota. As they reached the Interstate 29 corridor, rapid intensification once again took place, producing a large area of high winds as high as 60 and 70 mph as the storms moved through western Minnesota and northwest Iowa before finally weakening below severe limits.

Image Image Image
Storm Reports All Warnings Issued Beautiful Pictures of Mammatus
nws logo Media use of NWS Web News Stories is encouraged!
Please acknowledge the NWS as the source of any news information accessed from this site.
nws logo