Why don't tropical cyclones form in the Red Sea?

The Red Sea rarely experiences tropical storms, due to its narrow seabed, lower-than-desirable sea surface temperatures, strong transient winds, and a lack of the moisture needed to fuel tropical storms.

1-The small area of the Red Sea

• The Red Sea is narrow and long, which reduces the area needed for the winds to circulate in an orderly manner.
• Tropical conditions require a large area to form a stable low, which is not available here.

2- Sea surface temperatures are lower than required.

• Tropical storms typically require temperatures ≥26–27°C to feed clouds.
• The Red Sea, especially in the north, often does not reach this temperature year-round.

3- The effect of wind and weather conditions

• High wind shear prevents winds from organizing around the center of a tropical depression.
• Most of the time, stable weather reduces the chances of organized thunderstorms forming.

4-Limited humidity

• High humidity is necessary to feed tropical clouds.
• The Red Sea has less humidity than the Arabian Sea or the Indian Ocean, which reduces the likelihood of tropical conditions forming.

Conclusion

Tropical storms rarely form in the Red Sea because the climatic and marine conditions are not ideal, unlike the Arabian Sea and the Indian Ocean, which have the ideal space, heat, humidity, and winds for the birth of tropical storms.

Science Tip: Even if the Red Sea is warm, winds and humidity often limit the ability of any depression to develop into a tropical depression.