What determines the movement of tropical cyclones?

Tropical cyclones - to a first approximation - can be thought of as being steered by the surrounding environmental flow throughout the depth of the troposphere (from the surface to about 12 km or 8 mi). Dr. Neil Frank, former director of the U.S. read more

Contributed by Chris Landsea (NHC) Tropical cyclones - to a first approximation - can be thought of as being steered by the surrounding environmental flow throughout the depth of the troposphere (from the surface to about 12 km or 8 mi). read more

This technique, developed by Riehl, Haggard, and Sanborn, and issued as an NA publication Objective Prediction of 24-Hour Tropical Cyclone Movement uses this steering concept. The technique makes use of 500-hPa height averages alongside of a rectangular grid approximately centered on the storm. read more