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CALWIRE Weather Roundup (Tuesday, July 28, 2026)
By Cal Wire Weather Desk
EXTREME HEAT WARNING — San Diego County Inland Valleys
Extreme Heat Warning issued July 28 at 1:56AM PDT until August 2 at 8:00PM PDT by NWS San Diego CA
HEAT ADVISORY — Orange County Coastal
Heat Advisory issued July 28 at 1:56AM PDT until August 2 at 8:00PM PDT by NWS San Diego CA
EXTREME HEAT WARNING — Santa Ana Mountains and Foothills
Extreme Heat Warning issued July 28 at 1:56AM PDT until August 2 at 8:00PM PDT by NWS San Diego CA
HEAT ADVISORY — San Diego County Coastal Areas
Heat Advisory issued July 28 at 1:56AM PDT until August 2 at 8:00PM PDT by NWS San Diego CA
EXTREME HEAT WARNING — Orange County Inland
Extreme Heat Warning issued July 28 at 1:56AM PDT until August 2 at 8:00PM PDT by NWS San Diego CA
EXTREME HEAT WARNING — San Diego County Mountains
Extreme Heat Warning issued July 28 at 1:56AM PDT until August 2 at 8:00PM PDT by NWS San Diego CA
EXTREME HEAT WARNING — Apple and Lucerne Valleys
Extreme Heat Warning issued July 28 at 1:56AM PDT until August 2 at 8:00PM PDT by NWS San Diego CA
EXTREME HEAT WARNING — Coachella Valley
Extreme Heat Warning issued July 28 at 1:56AM PDT until August 2 at 8:00PM PDT by NWS San Diego CA
EXTREME HEAT WARNING — San Bernardino and Riverside County Valleys-The Inland Empire
Extreme Heat Warning issued July 28 at 1:56AM PDT until August 2 at 8:00PM PDT by NWS San Diego CA
EXTREME HEAT WARNING — Riverside County Mountains
Extreme Heat Warning issued July 28 at 1:56AM PDT until August 2 at 8:00PM PDT by NWS San Diego CA
HEAT ADVISORY — San Bernardino County Mountains
Heat Advisory issued July 28 at 1:56AM PDT until August 2 at 8:00PM PDT by NWS San Diego CA
EXTREME HEAT WARNING — Northwest Plateau
Extreme Heat Warning issued July 28 at 1:00AM PDT until August 2 at 8:00PM PDT by NWS Las Vegas NV
HEAT ADVISORY — Eastern Sierra Slopes of Inyo County
Heat Advisory issued July 28 at 1:00AM PDT until August 2 at 8:00PM PDT by NWS Las Vegas NV
EXTREME HEAT WARNING — Kofa
Extreme Heat Warning issued July 27 at 11:12PM MST until August 2 at 8:00PM MST by NWS Phoenix AZ
HIGH SURF ADVISORY — San Diego County Coastal Areas
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