The Cone of Uncertainty, officially named the Tropical Cyclone Track Forecast Cone, is a graphic issued by the National Hurricane Center once a region of interest becomes a tropical storm.

The cone is designed to convey uncertainty in the forecast of the storm's center not necessarily the areas that will experience impacts, In the figure above, it is clear that over time forecasts ...

The National Hurricane Center’s cone of uncertainty turns 20 this year, and the iconic map keeps getting smaller as forecasts get more accurate. But most storm risk is still outside the cone.

After a storm gets a name, it also gets a track. Over the years, the official hurricane track from the National Hurricane Center has earned the nickname the “cone of uncertainty.” It’s full ...

Each of the cone's circles use 67% of the center’s forecast errors over the previous five years. For this season, the resulting window is less than 39 nautical miles in any direction at 24 hours ...

This year, the "cone of uncertainty" seen on storm maps will be a bit narrower than in years past due to more accurate forecasting. Skip to content. All Sections. Subscribe Now. 82°F.