5 Freeway through Grapevine is the focus of a dense fog advisory released at 7:40 p.m. on Monday by the National Weather Service. The advisory is in effect until Tuesday Dec. 9, at 11 a.m.
“Visibility one quarter mile or less in dense fog for elevations between 1000 and 2500 feet,” can be anticipated according to the NWS Hanford CA. “Mountain Highways included but not limited to: 41, 58, 152, 168, 198 and Interstate 5.”
“Sudden encounter of low visibility could make driving conditions hazardous,” the NWS said. “If driving, slow down, use your headlights, and leave plenty of distance ahead of you.”
The full list of affected locations includes:
- 5 freeway through Grapevine
- West Side Mountains north of 198
- Coalinga – Avenal
- West Side Mountains South of 198
- South End San Joaquin Valley
- Mariposa Madera Foothills
- Mariposa-Madera Lower Sierra
- Fresno-Tulare Foothills
- Fresno-Tulare Lower Sierra
- South End Sierra Foothills
- South End of the Lower Sierra
- Tehachapi
- Frazier Mountain Communities
- Buena Vista County
Guidance from the NWS for navigating foggy conditions
When a dense fog advisory is issued for your area, it means that widespread dense fog has developed and visibility can plummet to a quarter-mile or less. These conditions pose challenges for travel, so exercise extra caution on the road or consider postponing your trip if possible.
If you must drive in foggy conditions, keep the following safety tips in mind:
Reduce speed:
Slow down and allow extra travel time to reach your destination safely.
Visibility priority:
Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights. If available, employ your fog lights.
Avoid high-beams:
Refrain from using high-beam headlights, as they create glare that impairs your visibility on the road.
Keep a safe distance:
Maintain a generous following distance to account for abrupt stops or shifting traffic patterns.
Stay in your lane:
Use the road’s lane markings as a guide to staying in the correct lane.
Zero visibility protocol:
In situations of near-zero visibility due to dense fog, activate your hazard lights and seek a secure location, such as a nearby business’s parking lot, to pull over and come to a stop.
No parking options:
If there is no parking lot or driveway to pull into, pull your vehicle off to the side of the road as far as possible. Once you come to a stop, turn off all lights except your hazard flashing lights, set the emergency brake, and take your foot off of the brake pedal to be sure the tail lights are not illuminated so that other drivers don’t mistakenly run into you.
By adhering to these recommendations from the NWS, you can navigate foggy conditions with greater safety, mitigating the risk of accidents and prioritizing your well-being.
For more local weather alerts, visit our Weather Advisory page