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Heat Advisory

Status

New Event Active alert

Start Time

Fri 09/11/2026 05:30 AM EDT

End Time

Fri 09/11/2026 11:00 PM EDT

Significance

Advisory

Impacts

Low impact

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service San Diego CA 230 AM PDT Fri Sep 11 2026 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM PDT THIS EVENING... * WHAT...High temperatures in the 90s to around 100 expected. * WHERE...San Diego County Valleys. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

Technical Header

CAZ050-120300- /O.NEW.KSGX.HT.Y.0013.260911T0930Z-260912T0300Z/ San Diego County Valleys- Including the cities of Escondido, Poway, El Cajon, La Mesa, San Marcos, and Santee 230 AM PDT Fri Sep 11 2026