Tyler Heard

ALT The Climate Prediction Center 8 to 14 Day Precipitation Outlook issued November 9, 2026, and valid for November 17 to November 23, 2026. Chances for above-normal precipitation are indicated across the majority of the country, including California, the Southwest, the Great Basin/Intermountain West, the Rockies, the Plains, the Mississippi Valleys, the Great Lakes, and the Southeast. The highest probabilities (60 to 70 percent) are centered over the Central and Southern Plains. Near-normal precipitation is forecast for the northernmost parts of the Northwest Pacific, Northern Great Basin, and Northern Rockies, along with a secondary band stretching across parts of the Ohio Valley, Tennessee Valley, and southern Middle Atlantic. Below-normal precipitation is forecast for the Northeast and the northern Middle Atlantic with probabilities reaching 40 to 50 percent over northernmost parts of New England, and 33 to 40 percent chances over the rest of the Northeast and Middle Atlantic.

ALT Potential atmospheric river activity could bring enhanced moisture to much of the West Coast during mid-November. Strong surface low pressure just north of the region could also likely drive high winds along the immediate coastline. A fair amount of uncertainty continues regarding the exact timing and magnitude of rainfall and winds. Moderate risk (40 to 60%) of heavy precipitation shown for Nov 14 to 15 across parts of southwestern OR and northern/central CA, while a slight risk (20 to 40%) extends to Nov 17 across the West Coast into the Southwest, Great Basin, and Southern Rockies. A moderate risk of high winds shown for the immediate West Coast Nov 14 to 15 and broader slight risk across the West until Nov 17. Moderate risk of heavy snow for higher elevations of the Klamath and Sierra Nevada Nov 14 to 15. Slight risks of heavy snow to Nov 17 for high elevations of the Cascades, Klamath, and Sierra Nevada, Northern Intermountain, Great Basin, and Central and Northern Rockies.