Southern California is under a fire weather warning, the National Weather Service said Wednesday.
The red flag warning will take effect from 9 a.m. to 6p .m. Thursday in the valleys of San Bernardino and Riverside counties as well as the coastal and inland areas of Orange County.
The lowest humidity is expected to be in the range of 10 to 15 percent.
Any fires that develop will likely spread rapidly. Outdoor burning is not recommended, the NWS said.
A wind advisory is in effect for San Diego County from 2 p.m. to 10 p.m. with southwest to west winds 20 to 30 mph and gusts to 50 mph in the forecast.
The winds are expected from mountain ridges and along deserts slopes of the mountains into adjacent desert areas and in the northern Coachella Valley below the San Gorgonio Pass.
The communities of Julian, Borrego Springs and Desert Hot Springs may be affected.
This could mean hazardous travel for high profile vehicles due to blowing sand and dust.
There is a small craft advisory also in effect from 6 p.m. Wednesday to 6 p.m. Thursday for areas from San Mateo to the Mexico border with northwest 15 to 25 knots and choppy combined seas of 6 to 8 feet.