Heat dome drives record heat, alerts and power shutoffs

Timeline

1. about 19 hours ago

   [HEALTH] 7 sources

   United States records extreme heat and cold month rankings across multiple states

   A July 2026 heat dome set all‑time highs in the northern Rockies, while historic rankings show record coldest Mays in Missouri and Arizona and hottest Junes in California and Colorado, reflecting ongoing US‑wid

2. about 21 hours ago

   [HEALTH] 2 sources

   Los Angeles County Issues Bacteria Warnings for Multiple Southern California Beaches

   LA County health officials warned that bacterial levels at several Southern California beaches exceed state standards, urging the public to avoid swimming amid a regional heatwave.

3. about 23 hours ago

   [HEALTH] 7 sources

   Southern California Heatwave Triggers Red Flag Warning, Power Shutoffs and Cooling Center Alerts

   July 15‑16 heatwave in Southern and Central California triggers Red Flag warnings, possible power shutoffs, cooling‑center alerts and farmworker safety measures.

4. 1 day ago

   [BUSINESS] 10 sources

   PG&E warns of power shutoffs in Bay Area, Central Coast amid heat and wind

   PG&E warns of PSPS power outages for thousands of Bay Area and Central Coast customers on July 15‑16 due to heat, wind and wildfire risk, affecting multiple counties and setting up resource centers.

5. 1 day ago

   [HEALTH] 17 sources

   U.S. record‑breaking heat wave sweeps West to East

   A heat dome drives a record‑breaking U.S. heat wave, shattering western temperature records and putting nearly 100 million people on heat alert as it moves east, with climate change and El Niño cited as amplif​

6. 3 days ago

   [HEALTH] 5 sources

   Southern California Heat Wave and Monsoon Threat

   Heat warnings across Southern California call for precautions as temperatures hit 90‑110 °F, fire risk rises, and monsoonal moisture brings flood and thunderstorm threats.

7. 4 days ago

   [HEALTH] 30 sources

   U.S. heat wave triggers record temperatures and widespread alerts

   A U.S. heat dome drives record temperatures, heat‑index up to 115 °F, affects 40 M people, sparks warnings in 23 states, worsens wildfire risk and threatens vulnerable populations.

8. 7 days ago

   [HEALTH] 2 sources

   California heat wave spurs air pollution alerts and beach water warnings

   A California heat wave drives ozone spikes and dust in the Central Valley and prompts Los Angeles County to issue beach water warnings for elevated bacteria at several sites.

9. 13 days ago

   [HEALTH] 2 sources

   California heat forecast raises fire and health risks for July 4

   California’s July 4 forecast shows near‑normal coastal temps, hotter inland heat up to 115 °F, and increased fire and health risks.

10. 24 days ago

    [HEALTH] 2 sources

    Southern California heat spell brings soaring temperatures and high humidity

    Southern California faces a heat wave with mid‑to‑upper 90s °F temperatures, high humidity, and a heat advisory through Thursday, urging residents to stay cool and hydrated.

11. 25 days ago

    [INTERNATIONAL] 2 sources

    Southern California heat forecast peaks at 110°F under high‑pressure ridge

    Southern California will experience clear skies and extreme heat through late June 2026, with highs up to 110°F inland and minimal rain, while occasional early‑morning marine clouds affect coastal valleys.