LOS ANGELES, June 14 (Xinhua) -- California braces for its first major heat wave of the year this week and the extreme drought conditions could cause more wildfires, the authority warned Monday.
"Tuesday through Thursday should be the hottest, when highs between 100 and 110 and minimum humidities between 5 and 15 percent will be common over most mountains and lower mountains," the NWS tweeted.
Temperatures would soar in the San Joaquin and Sacramento valleys in northern California by Thursday, the NWS Sacramento said. Highs were supposed to range from 100 degrees (about 37.8 degrees Celsius) to 113 degrees in the mountain area near the capital city of the state.
The heat wave would worsen the extreme drought hitting several areas in the Golden State. Last week, the National Oceanic and Atmospheric Administration warned of "extreme and exceptional drought" conditions in northern and central California, as well as along the central California coast.
Moreover, the heat wave and drought conditions could lead to more wildfires as hundreds of acres continued to burn across California on Monday.
There are currently four active wildfires of interest in the state, including the Beale Fire, the Goose Fire, the Flats Fire and the Farm Fire, according to the California Department of Forestry and Fire Protection, or Cal Fire.
As of Monday, Cal Fire reported that 17,273 acres (69.9 square km) had been scorched in 3,151 incidents so far this year.
Red flag warnings would be in effect Monday evening through Wednesday morning along the south Santa Barbara County coast and critical fire weather conditions were also expected in southeastern California.