Jacksonville Residents Prepare for December’s Frequent Foggy Conditions

Jacksonville Fog: December’s Frequent Visitor

Jacksonville, Fla. — December is known as the foggiest month on the First Coast, averaging six foggy days throughout the month. Residents may remember extended stretches of fog, including a notable nine-day period of dense fog back in 1944. Understanding the reasons behind this fog can help residents navigate the challenges it brings.

What Causes Fog in the First Coast?

The First Coast experiences two primary types of fog during December: radiation fog and sea fog. Each type has distinct characteristics shaped mainly by weather conditions.

Radiation Fog

Radiation fog often forms on clear nights when light winds create a perfect setting. As the sun sets, the ground cools down, which causes the air near the surface to drop in temperature. This cooling brings the air to its dew point, leading to moisture condensing into tiny droplets, resulting in a low cloud that settles close to the ground. Residents experiencing this type of fog may notice it disappearing shortly after sunrise, as the ground begins to warm.

Sea Fog

In contrast, sea fog, a type of advection fog, is more common in December. This phenomenon occurs when warm, moist air from the Gulf of Mexico moves over the cooler coastal waters. The interaction cools the air enough for condensation to occur, creating persistent fog. Unlike radiation fog, sea fog can linger for much longer, only clearing up once changing wind patterns or weather conditions arise.

Driving Hazards

Driving through fog presents significant dangers, particularly when visibility drops below 100 yards. This limited sight can drastically reduce reaction time; for example, at 60 mph, drivers only have about three seconds to respond to any potential hazards. To navigate safely through foggy conditions, it is essential to:

• Slow down significantly.
• Use low-beam headlights for better visibility.
• Maintain a safe following distance from other vehicles.

Community Engagement

Residents are encouraged to engage with their community by sharing experiences related to this seasonal phenomenon. If anyone has captured a foggy scene in their neighborhood, they are invited to post their photos on local community platforms, fostering connections and shared experiences.

Conclusion

As December continues, Jacksonville residents should prepare for the recurring presence of fog. By understanding the causes and characteristics of both radiation fog and sea fog, citizens can approach this atmospheric condition with greater awareness and caution. With a commitment to safety, everyone can navigate through this misty month with confidence.