A strong storm system moves from the Pacific Ocean to the west coast from late Saturday to Sunday, producing the most heavy rainfall in the region since late October.
The potential impact zone extends from Oregon to the region of Southern California. Truck drivers should expect heavy rains at low elevations and valleys in the Cascade Range and Sierra Nevada Mountains, heavy snowfall at high altitudes, and strong winds everywhere.
Major cities in this zone include Portland, Oregon, San Francisco, California and Sacramento. The major interstates in this zone are Interstate 5 between Oregon and California, Interstate 80 in the Sierra Nevada Mountains, and Interstate 84 along the Oregon-Washington border. It is included.
Total rainfall can exceed 6 inches in some places until early next week, with a total of up to 4 feet of rainfall at the highest peaks. These snows have a significant impact on drivers crossing high passes in the Sierra Nevada Mountains, such as the Scott Mountain Pass, Donner Pass, and Carson Pass, to name just a few.
Gusts range from 25 to 50 mph, with the strongest gusts occurring in coastal areas and high altitude areas. Dazzling rain and whiteout conditions can limit visibility. This stormy weather can cause disruption of ground and air transport, delays of intermodal transport, and severe regional disruptions to the supply chain.
Main lanes of concern
• Interstate 5 from Seattle to Portland and Sacramento.
• Interstate 80 from Reno, Nevada to San Francisco.
• Interstate 84 from Portland, Oregon to Zadales.
• US Highway 101 from Tillamook, Oregon to San Luis Obispo, California
Other notable weekend weather
Look for thunderstorms from the lower Mississippi River basin to the Ohio River basin on Friday afternoons and Friday nights. Some of these storms generate intense straight winds and tornadoes above 60 mph. Tornadoes can be strong. Some cities on the potential road include Shreveport, Louisiana. Little Rock, Arkansas; Jackson, Mississippi; Memphis, Tennessee and Nashville. St. Louis; Lexington and Louisville, Kentucky. Evansville, Indiana and Indianapolis. Like Cincinnati.
Heavy snowfall and strong winds continue to spread over the Central Plains and the Great Lakes on Fridays, followed by the Great Lakes on Saturdays. The largest accumulation can build up from eastern Wyoming to the Upper Peninsula of Michigan.
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