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 >

Weather History - May 9th

May 9th, 1999:

Torrential rains of two to five inches fell in Lyman County during the late evening hours, causing flash flooding on Medicine Creek. The KOA Campgrounds near Kennebec, including the main facility, were flooded. Several roads were also flooded and damaged along Medicine Creek. The storm's total rainfall in Kennebec was 3.40 inches. Also, a weak F0 tornado touched down briefly three miles south of Reliance, with no damage reported. Winds gusting to 70 mph knocked over a 4000-bushel holding bin near Revillo.

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

This Day in Weather History: May 9th