Weather Alerts For Shasta Lake, CA

# HEADLINE -------------------- WIND ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 8 PM PDT SUNDAY # DETAILS -------------------- WHAT North winds 20 to 30 mph with gusts up to 50 mph expected. WHERE Portions of the Sacramento Valley and Delta. Strongest in the Sacramento Valley along and west of I-5. WHEN From 11 PM this evening to 8 PM PDT Sunday. IMPACTS Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. ISSUED AT Saturday, May 16, 2026 at 6:52 AM PDT ISSUED BY National Weather Service Sacramento CA HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. # AREAS AFFECTED -------------------- Central Colusa County Incl. I, 5, 505, Butte County Below 1000 ft, C. Solano County including Fairfield, C. Yolo/NE Solano including Woodland, Central Glenn Co & Interstate 5, Eastern Colusa County, Eastern Glenn County, N. Sac Valley in Tehama County, Sacramento County Delta, San Joaquin County Delta, Shasta Metro, Sutter/Yuba counties below 1000 ft, SW Solano County including Vallejo, W. Yolo County including Capay/I Including the cities of Colusa, Willows, Orland, Walnut Grove, Chico, Oroville, Gridley, Esparto, Winters, Redding, Anderson, Fairfield, Vacaville, Red Bluff, Vallejo, Benicia, Williams, Yuba City, Beale AFB, Woodland, and Dixon

# HEADLINE -------------------- RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT MONDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONES 124,142,144,145,146,148,149,150,152,153,154,155,156, 157,158,159,160,161,163 AND 164 # SUMMARY -------------------- - Winds...North winds 20 to 30 mph. Gusts 35 to 45 mph, locally up to 50 mph around the Delta and the western Sacramento Valley. - Humidity...Daytime minimum humidities of 7 to 15%. Overnight maximum relative humidities of 20 to 55%. - Highest Threat...Along and west of the Interstate 5 corridor in the Sacramento Valley. Strongest winds are expected tonight through Sunday. - Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity. Outdoor burning is not recommended. # DETAILS -------------------- ISSUED AT Saturday, May 16, 2026 at 11:44 AM PDT ISSUED BY National Weather Service Sacramento CA HEADER URGENT - FIRE WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. # AREAS AFFECTED -------------------- Butte County Below 1000 ft, C. Solano County including Fairfield, C. Stanislaus County including Modesto, C. Yolo/NE Solano including Woodland, Central Glenn Co & Interstate 5, Eastern Colusa County, Sac Metro/W. El Dorado/Amador County, San Joaquin County Delta, SW Solano County including Vallejo, Tracy Triangle Below 1000 ft, W. Stanislaus County Above 1000 ft & I, W. Yolo County including Capay/I, 5, 5, 505, C. San Joaquin County including Stockton, Central Colusa County Incl. I, Eastern Glenn County, N. Sac Valley in Tehama County, NE San Joaquin Valley Below 1000 ft, Sacramento County Delta, Shasta Metro, Sutter/Yuba counties below 1000 ft

Pollen Index: 8.4 Pollen Level: medium-high Predominant Pollen: Mulberry, Walnut and Grass. The quantity of pollen grains in the air for Sunday will be on the increase in the high range. The cause for the rising pollen levels is strong winds and decreasing humidity.