National Weather Service United States Department of Commerce

Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Overview

June 12, 2017 - During the evening, thunderstorms developed and moved into northeastern Wyoming and western South Dakota ahead of a strong low pressure system. Some of the storms produced wind gusts to 75 mph, and hail to 1.5 inches in diameter. A brief tornado was observed 4 miles WNW of Swett in Bennett County, but no damage was reported. Strong wind gusts tipped over a semi truck on I-90 near Kadoka. 

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