Rainfall amounts during upcoming storm
Cumulative rainfall amounts during the upcoming storm. Courtesy National Weather Service

Forecasters are warning of a “significant winter storm” beginning Tuesday night that will bring over an inch of rain to San Diego and deep snow that could disrupt travel on Interstate 8,

“A significant winter storm will impact Southern California Tuesday night through at least Thursday — potentially into Friday,” according to the National Weather Service office in San Diego. “Moderate to heavy rain, mountain snow and gusty winds are all likely.”

San Diego county is expected to bear the brunt of the storm, with 1 to 1.5 inches of rain and snow above 3,500 feet. Accumulations court reach a foot in some areas.

“Treacherous travel or delays possible at times through the mountain passes including on the I-15 and I-8 due to freezing conditions and reduced visibility in snow and fog,” the weather service warned.

Temperatures everywhere except along the coast will drop from 15 to 20 degrees below normal on Wednesday and Thursday, with only a slight warming on Friday.

Elevated surf is expected at local beaches throughout the period. Sets of 3 to 6 feet are likely, especially along west to northwest facing beaches.

A small craft advisory will be in effect due to rough seas and gusty winds reaching 25 knots.

Chris Jennewein

Chris Jennewein is Editor & Publisher of Times of San Diego.