More than a third of Americans were under extreme heat advisories, watches, and warnings Thursday as a blistering heat wave that's been baking the nation spread further into California, forcing residents to seek out air conditioning or find other ways to stay cool in triple-digit temperatures. The sweltering conditions were expected to build Friday and through the weekend in Central and Southern California, where many residents should prepare for the hottest weather of the year, the National Weather Service warned. Highs in inland desert areas could top 120 degrees Fahrenheit during the day, and remain in the 80s overnight, offering little relief, the AP reports.
In Las Vegas, regional health officials launched a new database Thursday to report "heat-caused" and "heat-related" deaths in the city and surrounding Clark County from April to October. The Southern Nevada Health District said seven people have died since April 11, and a total of 152 deaths last year were determined to be heat-related. The tally includes deaths due to heat exposure or hyperthermia and cases with those reasons listed as "significant factors," district spokesperson Jennifer Sizemore said. Meanwhile, Phoenix hit 110 degrees for the 14th consecutive day Thursday, putting it on track for a possible new record next week. The longest measured stretch of 110 degree-plus temperatures for the city is 18 days, recorded in 1974. (Europe is also experiencing a dangerous heat wave.)