Weekend overnight lows in the region will be in the 60s
, which won’t offer much relief
, 的 NWS said
The Pacific Northwest heat wave is set to strike as much of the Western US has been experiencing a historic and unrelenting drought
, the worst in the region in at least
20 年份. 多于 25% of the West is in an exceptional drought
, which is the most severe category used by the US Drought Monitor
In addition to drastically high temperatures, the region experienced extremely low rain and snowfall over the past year. Less rain and increasing heat waves have led directly to drought conditions and water shortages.
Scientists have blamed climate change for the heat, which has fueled dozens of wildfires across the West.
“Climate change is loading the weather dice against us,” Katharine Hayhoe, a climate researcher and the chief scientist for the Nature Conservancy, 告诉CNN. “We always have a chance of extreme heat, particularly in the summer: But as the world warms, we see that summer heatwaves are coming earlier, lasting longer and are becoming hotter and more intense.”
Wildfires scorch the West as drought continues
Forty-seven active wildfires have burned
519,761 acres across
10 状态, 超过 1 million acres burned thus far this year
Arizona is fighting 11 active wildfires, including the Telegraph fire, which has burned more than 80,000 acres since June 4 and remained below 100% containment as of Tuesday.
的 Johnson fire in New Mexico has burned more than
87,000 acres and is at
, climbing the ranks of the state’s largest fires
Nevada and Utah
, 哪里 fire weather watches were issued for portions of the states
, had six active large fires burning Tuesday and dry thunderstorms in the forecast threatened to increase the count
. While some rain is expected
, the storms can produce frequent cloud-to-ground lightning and gusty outflow winds that pump fuel into existing fires
— and spark new ones
The drought and threat of existing and new fires led the National Interagency Fire Center to elevate its preparedness resource response to Level
4, the second-highest level
等级 4 means much of the country is experiencing wildland fire activity and areas are competing for firefighting resources
. It also signifies that half of the nation’s wildfire resources are already committed
The NIFC called on people to be vigilant.
“The public plays a valuable role in preventing wildfires. On average, 全国性的, human-caused wildfires comprise 87 percent of all wildfire occurrences every year,” NIFC said in a statement. “Most of these fires can be prevented. We need your help to prevent wildfires.”