A life-threatening flash flood warning has been issued for multiple regions in California due to an atmospheric river hitting most parts of the state on Friday. Snowfall totals in the highest elevations could reach over 100 inches and rainfall totals of 4-9 inches through today. There are also reports of river levels rapidly rising.

Evacuation warnings have been issued amid concerns that powerful storms are likely to deliver severe rainfall and cause widespread flooding across the central and northern parts of the state. According to the Weather Prediction Center, nearly 70,000 people have been impacted along the central California coast, stretching from Salinas southward to San Luis Obispo and including parts of Ventura and Monterey counties.

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A Level 4 warning of excessive rainfall in the area has been issued, which is the highest form of warning. “Multiple rounds of rainfall in addition to melting snow will result in the potential for significant rises along streams and rivers, with widespread flooding impacts possible through early next week,” the National Water Center said Thursday.

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While California is in recovery mode from prior heavy snowfalls and deadly flooding in January, local officials have issued evacuation warnings and orders for some areas. Others have been warned to brace themselves for severely rough weather. Some of the main roads like Interstate 5 and Highway 1 are also closed.

NOAA’s Weather Prediction Center has issued an “extreme” risk of flash flooding for the southern Sierra Nevada and the Central California coastal range south of Monterey. For the lowlands, several inches of rain have prompted mudslide concerns in addition to flood alerts.