CALWIRE Weather Roundup (Saturday, August 22, 2026)

8 active weather alerts statewide today, led by a red flag warning for Siskiyou County from the Cascade Mountains East and South to Mt Shasta, plus coverage for Surprise Valley California, Lassen-Eastern Plumas-Eastern Sierra Counties.

RED FLAG WARNING — Siskiyou County from the Cascade Mountains East and South to Mt Shasta

Red Flag Warning issued August 22 at 4:16AM PDT until August 22 at 9:00PM PDT by NWS Medford OR

RED FLAG WARNING — Surprise Valley California

Red Flag Warning issued August 22 at 1:05AM PDT until August 22 at 11:00PM PDT by NWS Reno NV

LAKE WIND ADVISORY — Lassen-Eastern Plumas-Eastern Sierra Counties

Lake Wind Advisory issued August 21 at 11:22AM PDT until August 22 at 11:00PM PDT by NWS Reno NV

HEAT ADVISORY — San Bernardino and Riverside County Valleys-The Inland Empire

Heat Advisory issued August 22 at 2:56AM PDT until August 24 at 8:00PM PDT by NWS San Diego CA

HEAT ADVISORY — San Bernardino County Mountains

Heat Advisory issued August 22 at 2:56AM PDT until August 24 at 8:00PM PDT by NWS San Diego CA

EXTREME HEAT WARNING — Coachella Valley

Extreme Heat Warning issued August 22 at 2:56AM PDT until August 28 at 8:00PM PDT by NWS San Diego CA

EXTREME HEAT WARNING — Imperial County Southwest

Extreme Heat Warning issued August 22 at 12:45AM MST until August 28 at 8:00PM MST by NWS Phoenix AZ

EXTREME HEAT WARNING — Death Valley National Park

Read more articles similar to this one...

Filed Under: Weather CALWIRE Weather Roundup Saturday