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Helping Business Weather the Storm

National Weather Summary for Tuesday, January 15, 2019

by David Moran, on Jan 15, 2019 11:14:29 AM

Snow will continue across the Sierra Nevadas through Friday as a series of low pressure systems move across the region. These systems will also produce a potential for excessive rainfall along the California coast, as well as a few thunderstorms.

  • Snow for the Sierra Nevadas through Friday
  • Excessive Rainfall through Thursday along the California Coast

US Hazards Tuesday, January 15, 2019
US Hazards

Snow for the Sierra Nevadas through Friday
Several rounds of precipitation and below freezing temperatures are expected to produce significant snowfall across the Sierra Nevadas, including the lower elevations near Lake Tahoe. The initial round of snowfall on Tuesday and Wednesday will bring 5-7 inches of snow to the lower elevations and 10-16 inches above 7,000 feet. A break in the snow is forecast Wednesday evening before a second round of snowfall Thursday morning through Friday morning. An additional 9-12 inches of snow is expected for the lower elevations; above 7,000 feet, 15-24 inches are forecast. Total snowfall of 19-23 inches are expected in the lower elevations; in the higher elevations, accumulations greater than 3 feet are forecast.

Major Cities in Region: South Lake Tahoe, CA

Snow Accumulation for January 15-18, 2018
Snow Accumulation through Friday

Excessive Rainfall through Thursday along the California Coast
A series of low pressure systems is forecast to move onshore the California coast, leading to the potential for heavy to excessive rainfall to the coast. A system just to the west of Los Angeles will track northeastward and move onshore today. This system will bring the heaviest rainfall to southern California where rainfall amounts will range 1.00-1.50 inches. The second round will impact northern California Wednesday afternoon with accumulations of 1.50-2.00 inches expected. An additional 2-3 inches of rainfall are expected along the entire coast on Thursday. A few thunderstorms capable of gusty winds and isolated tornadoes may develop along the coast of southern California Tuesday afternoon.

Major Cities in Region: San Francisco, CA, Los Angeles, CA

Rainfall Accumulation for January 15-17, 2019
Rainfall Accumulation through Thursday

A Look Ahead
Snow will move across the Northern and Central Plains on Friday as an area of low pressure intensifies and progresses eastward. As this system continues to move eastward on Saturday, snow will extend from the Missouri Valley into the Great Lakes. Showers and thunderstorms may develop from the Tennessee Valley into the Lower Mississippi Valley. By Sunday, freezing rain and snow are expected from the Appalachians into the Northeast. Light snow may develop across the Upper Midwest on Monday.

Topics:Nowcast/Forecast

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