Archive · 24 Aug 2025
Western U.S. Swelters Under Intense Heat Wave
A heat wave caused dangerously high temperatures across the Western United States, putting millions at risk.
Places like Portland, Oregon, and Tucson, Arizona, saw the worst of it.
In Portland, a runner collapsed during a race due to the heat.
Emergency services saw more people needing help because of the heat.
This is a serious issue, as extreme heat can be very dangerous, as shown by the rise in hospital visits and calls.
A heat wave hit the Western U.S., with extreme risk warnings in effect.
1.2 million people faced extreme heat risk, and 18.6 million were under major heat risk.
Portland, Oregon, reported a record high temperature for August 22.
A long-distance runner in Portland's Hood to Coast relay race lost consciousness due to the heat.
Emergency services in Portland saw an increase in heat-related visits and calls.
- Who
- Residents of the Western U.S., particularly those in areas under extreme heat risk.
- What
- A heat wave caused record temperatures and health risks in the Western U.S.
- When
- On August 22nd and the following weekend.
- Where
- Western U.S., including Washington, Oregon, Southern California, Nevada, and Arizona.
- Why
- The extreme heat posed health risks due to the high temperatures.
- Extreme Heat Risk Area
- Tucson, Arizona
- High Temperature Forecast
- 102-107 degrees Fahrenheit (39-42 degrees Celsius) in Tucson, Arizona
- People under Extreme Heat Risk
- Approximately 1.2 million
- People under Major Heat Risk
- 18.6 million
- Portland Record High
- 102 degrees Fahrenheit (38.9 Celsius) on August 22
- Event
- Hood to Coast relay race