Three and Five Day Cones

 

The National Hurricane Center (NHC) issues several forecast products and advisories aimed at the general public, but none is as familiar as the three and five-day cones.  This product takes the current position of a tropical cyclone and projects its path over the stated forecast period.  Although familiar, undue focus is frequently placed on the center line instead of the wider danger area intended by the NHC.  Although accuracy has improved, forecasting the exact path of a hurricane is an extremely difficult task.  The widening of the cone over time visualizes the increased uncertainty of the storm's path over time.  People who live either within or near the highlighted area of the cone should take the necessary precautions.