SAN DIEGO (CBS 8) - On Tuesday, the hot and humid weather took numerous San Diegans by surprise.

Crews across San Diego came to the rescue of many who were taken back by the hot and humid weather.

Authorities reminded people, especially those who are exercising outdoors, to stay hydrated.

CBS News 8's Dominic Garcia reports from Cowles Mountain with more on what folks can do to prevent heat exhaustion in muggy conditions.