Weather overview a.m. Monday 25 October 2021

  • A strong storm off the Pacific Northwest will continue producing heavy rain, high elevation snow and strong to high winds over much of central and northern California, the Sierra Nevadas and the Great Basin today.
  • Coastal Southern New England will see high winds and flooding rains Tuesday and Wednesday.
  • Large hail, wind damage and an isolated tornado threat are expected across parts of the southern and central Plains from late Tuesday afternoon into the overnight.

— Coastal WA along the Pacific Coast, Strait of Juan de Fuca, and northwards: High Wind Warning through this evening. Gusts to 70 mph.

— Most of the CA Sierra Nevada Range and the valleys to the east of the mountains: A combination of Flood Warnings, Advisories and Watches remain in effect today. As of early Monday morning 4-9 inches of rain have fallen in this region. I-5, I-80, US-101 impacted.

— CA Central and Southern Sierra Nevada Range above 6000 feet: Winter Storm Warning through this evening. 1-2 feet of snow likely with amounts exceeding 3 feet above 7000 feet. I-80, US-50 impacted.

— Portions of southern and southeast CA, northwest AZ, central and southern NV, western and northern UT: High Wind Warnings and Wind Advisories through this evening. Gusts. 50-70 mph. Strongest winds over western UT. Winds will abate starting this afternoon from west to east. I-5, I-8, I-10, I-15, I-40, I-80, CA-58 impacted.

— North-central MT: High Wind Watch Wednesday. Gusts to 60 mph. I-15 potentially impacted.

— Central ID: Winter Storm Warning Sunday through midday. Total accumulations 3-12 inches above 7000 feet.

— West-central WY: Winter Weather Advisories this evening and Tuesday for the Teton, Gros Ventre, and Wind River Ranges. 4-12 inches snow expected with greatest amounts at higher elevations.

— South-central and central WY: High Wind Warnings today. Gusts 60-70 mph. I-25, I-80 impacted.

— Southwest CO San Juan Mountains: Winter Weather Advisory tonight through Monday night above 9500 feet. 4-8 inches of snow with gusts 40-55 mph.

— Southeast NM, extreme west TX: High Wind Warning Tuesday and Tuesday night. Gust to 60 mph. I-10 impacted.

— Western ND: Wind Advisory today. Gusts to 45 mph. I-94 impacted.

— South-central KS, central OK, north-central TX: Significant severe weather outbreak possible Tuesday and Tuesday night. Large hail, damaging winds and a few tornadoes all possible. I-20, I-35, I-40, I-70 potentially impacted.

— Western LA coast, upper TX Gulf Coast: Dense Fog Advisories through mid-morning. I-10 impacted.

— Northeast IL: Wind Advisory through early afternoon. Gusts 45-50 mph. Major highways impacted include I-39, I-55, I-57, I-80, I-88, I-90.

— Northeast and central IL: Flash Flood Watches through midmorning. Total accumulation of 2-4 inches of rain. Major highways impacted include I-39, I-55, I-57, I-74, I-80, I-90.

— East-central MI: Wind Advisory today and tonight. Gusts to 45 mph. I-69, I-75 impacted.

— Southeast WV, most of VA, northern NC: Slight risk of severe thunderstorms with damaging wind gusts this afternoon and evening. I-64, I-77, I-81, I-95 potentially impacted.

— NJ except extreme south, southern NY including New York City and Long Island, CT, RI, MA except extreme west: Flash Flood Watches tonight through Wednesday. 2-4 inches of rain expected. Major highways impacted include NJTP, NY Thruway, Mass Pike, I-84, I-90, I-95.

— Eastern MA, RI, southeast CT, eastern Long Island: High Wind Watches Tuesday and Wednesday. Gusts to 55 mph. Mass Pike, I-95 impacted.

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