Tracking Late Season Winter Storms; Unusual Early-Season Heat Wave in the Southwest

Heavy snow and high winds continue in the Great Lakes and Northeast. A moderate atmospheric river will continue to bring heavy precipitation to the Pacific Northwest and northern Rockies. A major winter storm will develop across the northern High Plains tonight into Saturday and rapidly strengthen as it moves into the Great Lakes on Sunday. Above-average temperatures expected in the Southwest. Read More >

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Last Map Update: Fri, Mar 13, 2026 at 1:10:40 pm PDT

Watches, Warnings & Advisories

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Small Craft Advisory

Lake Wind Advisory

Wind Advisory

Windy conditions into the weekend

Mid-March Warm Temperatures

Cold Water Hazards

Cold Water Safety

Persisting zonal flow aloft will allow for windy conditions across northern California and southern Oregon through into the weekend. Lower elevation areas will see afternoon and evening breezes, with gusty winds developing along and east of the Cascades. Gusts of 25 to 30 mph are expected. Isolated gusts of 45 to 50 mph are possible, especially along Winter Rim and other east side terrain.

An expected stable pattern is expected to bring daytime highs 10 to 20 degrees above normal across northern California and southern Oregon through next week. Area valleys and basins are most likely to see the warmest temperatures. These temperatures present a Minor HeatRisk. Individuals who are extremely sensitive to heat may experience heat-related illnesses in this period.

With warmer weather ahead, many will try to cool off while exploring the outdoors. Area waters can be much colder than expected, which poses a number of health risks to sensitive or unprepared individuals. A swimmer risks experiencing cold shock, physical incapacitation, and hypothermia. Please be aware of these hazards while dipping into the Pacific Ocean or area lakes and rivers.

Warm temperatures may make swimming in area water especially enticing, but swimming in cold waters poses a number of health risks. These risks can be reduced by using the proper safety equipment, limiting time in cold water, and never swimming alone.