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To: Don Green who wrote (11)7/28/2021 8:49:06 AM
From: Don Green  Read Replies (1) | Respond to of 942
 
Cone of Uncertainty: Facts and Myths About This Tropical Forecasting Tool

At a Glance Each tropical system is given a forecast cone to help the public better understand where it's headed.The cone is designed to show increasing forecast uncertainty over time.

It's a staple of every hurricane season: the "cone of uncertainty," which extends out from the storm on forecasting maps to warn the public of the projected path of a tropical system. But there are some things you might not know about the cone that you need to know.

Every year, mainly during the hurricane season, the National Hurricane Center issues various information and forecast products for current tropical cyclones. The forecast track of the storm is represented by a white "cone" on their graphic.

The NHC's forecast cone isn't used by all weather forecasters; some will vary, although the cone is universally accepted as the format for projecting a storm's path.

(MORE: Why Tropical Waves Are Important During Hurricane Season)

There can also be variations in the color of the cone for media outlets that are not affiliated with the NHC. The Weather Channel and weather.com, for example, present their forecast cone in a dark red color. Time stamps can also vary across various media and track point positions are not always depicted.

weather.com