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Updated:March 19, 2026 2:15 pm PDT

Extreme Heat Warning EXTREME HEAT WARNING  
Santa Barbara County

  Effective: Wed, 3/18 1:06pm Severity:  Severe 
  Updated: March 19, 2026 2:15 pm Urgency: Expected
  Expires: Fri, 3/20 8:00pm Certainty: Likely

Areas Affected: Santa Lucia Mountains - San Luis Obispo County Mountains - Santa Ynez Mountains Western Range - Santa Ynez Mountains Eastern Range - Santa Barbara County Interior Mountains
 
Alert Details:
* WHAT...Dangerously hot conditions with temperatures in the 90s to
near 100 expected.

* WHERE...San Luis Obispo County Mountains, Santa Barbara County
Interior Mountains, Santa Lucia Mountains, Santa Ynez Mountains
Eastern Range, and Santa Ynez Mountains Western Range.

* WHEN...Until 8 PM PDT Friday.

* IMPACTS...There is a high risk for dangerous heat illness for
anyone, especially for the very young, the very old, those without
air conditioning, and those active outdoors.

* ADDITIONAL DETAILS...Warm overnight low temperatures will
contribute to the heat risk, especially in the mountain and
foothill locations.

Information:
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.
Heat Advisory HEAT ADVISORY  
Santa Barbara County

  Effective: Wed, 3/18 1:06pm Severity:  Moderate 
  Updated: March 19, 2026 2:15 pm Urgency: Expected
  Expires: Fri, 3/20 8:00pm Certainty: Likely

Areas Affected: Cuyama Valley - Southern Salinas Valley - San Luis Obispo County Interior Valleys
 
Alert Details:
* WHAT...Hot conditions with high temperatures in the 80s and 90s
expected.

* WHERE...Cuyama Valley, San Luis Obispo County Interior Valleys,
and Southern Salinas Valley.

* WHEN...Until 8 PM PDT Friday.

* IMPACTS...There is a high risk for heat illness for sensitive
populations including the very young, the very old, those without
air conditioning, and those active outdoors.

* ADDITIONAL DETAILS...Warm overnight low temperatures will
contribute to the heat risk, especially in the mountain and
foothill locations.

Information:
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.
Heat Advisory HEAT ADVISORY  
Santa Barbara County

  Effective: Wed, 3/18 1:06pm Severity:  Moderate 
  Updated: March 19, 2026 2:15 pm Urgency: Expected
  Expires: Fri, 3/20 8:00pm Certainty: Likely

Areas Affected: San Luis Obispo County Beaches - San Luis Obispo County Inland Central Coast - Santa Barbara County Central Coast Beaches - Santa Barbara County Inland Central Coast - Santa Ynez Valley - Santa Barbara County Southwestern Coast - Santa Barbara County Southeastern Coast
 
Alert Details:
* WHAT...Hot conditions with high temperatures in the 80s and 90s
expected.

* WHERE...San Luis Obispo County Beaches, San Luis Obispo County
Inland Central Coast, Santa Barbara County Central Coast Beaches,
Santa Barbara County Inland Central Coast, Santa Barbara County
Southeastern Coast, Santa Barbara County Southwestern Coast, and
Santa Ynez Valley.

* WHEN...Until 8 PM PDT Friday.

* IMPACTS...There is a high risk for heat illness for sensitive
populations including the very young, the very old, those without
air conditioning, and those active outdoors.

* ADDITIONAL DETAILS...Warm overnight low temperatures will
contribute to the heat risk, especially in the mountain and
foothill locations.

Information:
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.
Heat Advisory HEAT ADVISORY  
Santa Barbara County

  Effective: Wed, 3/18 1:06pm Severity:  Moderate 
  Updated: March 19, 2026 2:15 pm Urgency: Expected
  Expires: Fri, 3/20 8:00pm Certainty: Likely

Areas Affected: San Miguel and Santa Rosa Islands - Santa Cruz and Anacapa Islands
 
Alert Details:
* WHAT...Hot conditions with high temperatures between 80 and 90
expected.

* WHERE...San Miguel and Santa Rosa Islands and Santa Cruz and
Anacapa Islands.

* WHEN...Until 8 PM PDT Friday.

* IMPACTS...There is a high risk for heat illness for sensitive
populations including the very young, the very old, those without
air conditioning, and those active outdoors.

* ADDITIONAL DETAILS...Warm overnight low temperatures will
contribute to the heat risk, especially in the mountain and
foothill locations.

Information:
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.