Beaufort Scale at Sea - Force 4

Vocabulary flashcards detailing the wind speeds, wave characteristics, and maritime adjustments required for Beaufort Force 4 (Moderate Breeze).

Beaufort 4 is a sea state condition classified as a

Moderate Breeze.

Wind Speed (Beaufort 4)

Wind speeds ranging from $11-16\,\text{knots}$.

Wave Height (Beaufort 4)

Waves reaching heights between $1-2\,\text{meters}$.

White Horses

Fairly frequent white caps that appear on waves as they become longer during a Beaufort 4 breeze.

Reefed Jib (Headsail)

The configuration of a yacht's headsail when navigating in Beaufort 4 conditions.

Moderate Breeze Sea Appearance

Sea waves appearing as a cloudy blue with wind motion visible in cloud patterns and small waves becoming longer.

Slamming

The physical impact experienced by a motorboat at high speed in Beaufort 4 conditions, which can be stopped by reducing speed to pitching.