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Updated:May 12, 2026 4:45 pm PDT

Red Flag Warning RED FLAG WARNING  
Merced County

  Effective: Tue, 5/12 9:52am Severity:  Severe 
  Updated: May 12, 2026 4:45 pm Urgency: Expected
  Expires: Tue, 5/12 6:00pm Certainty: Likely

Areas Affected: Indian Wells Valley - Kern County Desert - West Side Hills - Tehachapi Area - Fort Tejon
 
Alert Details:
The National Weather Service in Hanford has issued a Red Flag
Warning, which is in effect until 10 PM PDT this evening.

* AFFECTED AREA...Fire weather zone 298 Indian Wells Valley. Fire
weather zone 299 Kern County Desert. Fire weather zone 579 West
Side Hills. Fire weather zone 596 Tehachapi Area. Fire weather
zone 597 Fort Tejon.

* WIND...GUSTING TO 35 MPH

* HUMIDITY...5-15%

* HIGHEST THREAT...is FAST-MOVING GRASS FIRES

* IMPACTS...Any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.

Information:
A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.
Heat Advisory HEAT ADVISORY  
Merced County

  Effective: Tue, 5/12 3:06pm Severity:  Moderate 
  Updated: May 12, 2026 4:45 pm Urgency: Expected
  Expires: Tue, 5/12 10:00pm Certainty: Likely

Areas Affected: Los Banos - Dos Palos - Merced - Madera - Mendota - Planada - Le Grand - Snelling - West Side of Fresno and Kings Counties - Caruthers - San Joaquin - Selma - Fresno-Clovis - Delano-Wasco-Shafter - Hanford - Corcoran - Lemoore - Visalia - Porterville - Reedley - Bakersfield - Southeast San Joaquin Valley - South End San Joaquin Valley - Mariposa Madera Foothills - Fresno-Tulare Foothills - South End Sierra Foothills
 
Alert Details:
* WHAT...High temperatures up to 96.

* WHERE...A portion of central California.

* WHEN...Until 10 PM PDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

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.

To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
Heat Advisory HEAT ADVISORY  
Merced County

  Effective: Tue, 5/12 3:06pm Severity:  Moderate 
  Updated: May 12, 2026 4:45 pm Urgency: Expected
  Expires: Tue, 5/12 11:15pm Certainty: Likely

Areas Affected: West Side Mountains north of 198
 
Alert Details:
* WHAT...For the Heat Advisory, high temperatures up to 102 degrees.
For the Wind Advisory, west winds 15 to 25 mph with gusts up to 40
mph expected.

* WHERE...West Side Mountains north of 198.

* WHEN...For the Heat Advisory, until 10 PM PDT this evening. For
the Wind Advisory, until 8 AM PDT Wednesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result. Hot
temperatures and high humidity may cause heat illnesses.

Information:
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

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.

To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
Wind Advisory WIND ADVISORY  
Merced County

  Effective: Tue, 5/12 3:06pm Severity:  Moderate 
  Updated: May 12, 2026 4:45 pm Urgency: Expected
  Expires: Tue, 5/12 11:15pm Certainty: Likely

Areas Affected: West Side Mountains north of 198
 
Alert Details:
* WHAT...For the Heat Advisory, high temperatures up to 102 degrees.
For the Wind Advisory, west winds 15 to 25 mph with gusts up to 40
mph expected.

* WHERE...West Side Mountains north of 198.

* WHEN...For the Heat Advisory, until 10 PM PDT this evening. For
the Wind Advisory, until 8 AM PDT Wednesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result. Hot
temperatures and high humidity may cause heat illnesses.

Information:
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

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.

To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.