Sep 3, 2012; 7:35 PM ET
The warm, late-summer fire weather pattern will continue over California this week.
Brush which has had all summer to dry out, combined with surging temperatures is increasing the risk of wildfires.
While winds will be relatively light and the humidity will hover in the moderate range during the night times and early morning hours, the dry brush and high temperatures during the day are enough to cause some problems.
High temperatures are forecast to run slightly above normal through the week over California and much of the Southwest in general.
The cause of the San Gabriel Canyon fire was still being investigated Monday.
Officials banned visitors in the region for safety concerns and firefighting efforts. Thousands of visitors typically visit the area during the holiday weekend.
The fire spread quickly up the sides of the canyon and rapidly grew to approximately 4,000 acres.
People are urged to be careful with outdoor power equipment, grills and campfires.
The weather pattern remains favorable for spotty afternoon and evening thunderstorm activity. The greatest risk of a drenching storm lies from Arizona to Colorado much of the week. However, there is a chance of tropical moisture enhancing thunderstorms over the mountains in California by Wednesday.
The circulation around John well to the south could pump moisture and spotty thunderstorms into the region during the second half of this week.
While far from the most dangerous weather conditions we have see, people still need to be careful with open flames and equipment outdoors this time of the year.
While a few of the storms over the Southwest can bring drenching downpours, many of the storms will bring little or no rainfall and the risk of lightning induced wildfires.