The National Weather Service issued a weather alert at 4:28 a.m. on Sunday for dense fog until 8 a.m. for Marshall, Jackson and DeKalb counties.

“Patchy Dense Fog has developed across portions of NE Alabama and in Franklin county, TN, with visibilities dropping to 1/4 mile or less in isolated areas. Motorists are urged to drive with extreme caution, as visibilities will vary significantly given the patchy nature of the fog. Use low beams, reduce driving speed, and allow for plenty of room between you and other cars. The fog should begin to burn off around 8 a.m. Stay tuned to NOAA Weather Radio, or a favorite local media outlet, for further statements or updates from the National Weather Service in Huntsville,” according to the weather service.

Navigating fog: Safety tips by the weather service

If you need to drive through fog, remember these safety guidelines:

Reduce speed:

• Slow down and allocate extra travel time to reach your destination safely.

Visibility matters:

• Ensure your vehicle is visible to others by using low-beam headlights, which automatically activate your taillights. Utilize fog lights if your vehicle is equipped with them.

Avoid high-beams:

• Refrain from using high-beam headlights, as they create glare that impairs your visibility on the road.

Maintain safe gaps:

• 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 remaining in the correct lane.

Visibility near zero:

• 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 no designated parking area is available, pull your vehicle as far off the road as possible. Once stationary, deactivate all lights except the hazard flashers, engage the emergency brake, and release the brake pedal to ensure your tail lights remain unlit, minimizing the chance of other drivers colliding with your stationary vehicle.

By adhering to these weather service recommendations, you can navigate foggy conditions more safely, reducing the risk of accidents and ensuring your well-being.

Advance Local Weather Alerts is a service provided by United Robots, which uses machine learning to compile the latest data from the National Weather Service.