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With record October heat striking the Los Angeles area, LA Unified today cancelled all outdoor daytime athletic activities in the San Fernando Valley, NBC reported. Varsity football games scheduled for after 7 p.m. will continue.

Because of triple digit heat, Santa Ana winds and fire danger expected through the weekend, heat advisories and red flag warnings are in effect in parts of Southern California.

“With extremely dry fuels in place, if fire ignition occurs there could be rapid spread of wildfire that would lead to a threat to life and property,” a National Weather Service statement said.

This is the second time in the last few weeks that LA Unified has cancelled activities due to the weather. In mid-September, the district shut down all athletic activities for two days due to extreme heat that also caused air conditioning units to fail at several schools.