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Updated:January 30, 2026 8:45 pm PST

Dense Fog Advisory DENSE FOG ADVISORY  
Mariposa County

  Effective: Fri, 1/30 8:37pm Severity:  Moderate 
  Updated: January 30, 2026 8:45 pm Urgency: Expected
  Expires: Sat, 1/31 8:00am Certainty: Likely

Areas Affected: Los Banos - Dos Palos - Merced - Madera - Mendota - Planada - Le Grand - Snelling - Coalinga - Avenal - West Side of Fresno and Kings Counties - Caruthers - San Joaquin - Selma - Fresno-Clovis - Buttonwillow - Lost Hills - I5 - Delano-Wasco-Shafter - Hanford - Corcoran - Lemoore - Visalia - Porterville - Reedley - Buena Vista - Bakersfield - Southeast San Joaquin Valley - South End San Joaquin Valley
 
Alert Details:
* WHAT...Visibility one quarter mile or less in dense fog.  Worst
case scenario, visibilities down to zero.

* WHERE...San Joaquin Valley.

* WHEN...Until noon PST Saturday.

* IMPACTS...Low visibility could make driving conditions hazardous.

* ADDITIONAL DETAILS...Highways include, but are not limited to
Interstate 5, State Routes 99, 41, 43, 46, 58, 59, 140, 152, 165,
180 and 198.

Information:
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.