Fog Safety: Driving, Boating, Flying

Whether you’re driving, boating or flying, fog can cause serious issues when traveling. Check out some of these tips to stay safe the next time you have to cut through a dense fog while operating a vehicle.

Fog can be thought of as a low cloud that has significant impacts on visibility. Additionally, in freezing temperatures, fog can ice over any surface, roads and planes. Be sure that your vehicle is equipped with the necessary equipment needed to keep all operations running smoothly.

When driving, use your lights! By turning on your low beams (even in daylight), you will activate your taillights, alerting drivers behind you to your position. Never use your high beams, as they will reflect off the dense fog, causing a glare and worsening visibility.

Leave extra space between you and the vehicle in front of you, to give more time to react to any sudden stops. Try to avoid suddenly stopping if you can, so that drivers behind you have time to react. If you have to pull over to the side of the road, make sure to pull as far off to the side as possible, and turn on your hazards so everyone on the road knows where you are.

Don’t drive with your hazards on, as it makes it harder for other drivers to predict your movements. You always have to be aware of everyone else on the road, but in the fog, it becomes imperative for safety.

On the water, fog can form quickly and catch mariners off guard. The classifications for visibility in a marine environment are different than that on land, and are as follows:

• Very poor: Visibility reduced to less than 0.5 nautical miles
• Poor: Visibility reduced to less than 2 nautical miles
• Moderate: Visibility between 2 and 5 nautical miles
• Good: Visibility greater than 5 miles

When boating in the fog, be sure to slow down to avoid collisions. It can take time to stop or turn a boat, so this allows extra time to react to a situation. Turn on all your running lights, even in the daytime. Use your ears to listen for other boats or fog horns or bells from nearby buoys.

If you have an on-board radar, use it to locate dangers around you. If you are unable to get your bearings, make sure you’re in a safe space then sit still until the fog lifts or becomes more manageable. Have a compass available to determine your direction, and make sure to stay out of shipping lanes! Large ships won’t be able to see you, and a collision could mean disaster.

Flying in the fog is challenging for even the most experienced pilots. Before flying, be sure you are up-to-date on the latest weather forecasts, advisories and observations. It may be worth changing your plans to avoid flying in the fog, but if you must take off, make sure you are very familiar with the airport you are arriving at and/or departing from, including the length and orientation of the runways.

There are different rules mandated by the Federal Aviation Administration based on visibility and ceiling height. Flight categories are as follows:

• Instrument Flight Rules (IFR) or Instrument Meteorological Conditions (IMC): Ceilings below 1,000 feet above ground level (AGL), and/or visibility less than three miles.
• Marginal Visual Flight Rules (MVFR): Ceilings between 1,000 and 3,000 feet AGL, and/or visibility between three to five miles.
• Visual Flight Rules (VFR) or Meteorological Conditions (VMC): Ceilings greater than 3,000 feet AGL and visibility greater than five miles

The ability to operate in fog depends on the instrument rating, aircraft capability and airport capability. Be sure you are closely following all guidelines set out by the FAA, and be sure to always file a flight plan.

Credit: NWS

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Story Image: Fog over a forest via Wikimedia Commons