SOUTHLAND - (INT) - Summer is on its worst behavior. Flash flooding is likely as the heat mixes with tropical moisture creating afternoon and evening showers and thunderstorms.

The National Weather Service is maintaining a flash flood watch through Thursday as a heat wave reaches the half-way point.

Drier air will filter into Southern California beginning Saturday helping with a slow cool down.

The heat wave has sent temperatures to their highest marks of the year in some communities.

Tuesday marked the second day of the late summer heat wave.

Riverside 106
Ontario 106
Chino 107
San Bernardino 103
Lake Elsinore 107
Moreno Valley 103
Temecula 102
Palm Springs 110

Surf is rebuilding along the Southland coast, another indicator of Hurricane Linda off the coast of Baja California.

Story Date: September 9, 2015