Forecasters use cone of uncertainty to track center of Ana - Hawaii News Now - KGMB and KHNL

Forecasters use cone of uncertainty to track center of Ana

The shaded area represents the cone of uncertainty to track Ana. The shaded area represents the cone of uncertainty to track Ana.
HONOLULU (HawaiiNewsNow) - Ana was upgraded to a hurricane on Friday at 11 a.m. and its forecast track is south of Hawaii. Over the past few days, meteorologists have been using Ana's cone of uncertainty to see the track it's on. 

Contrary to popular belief, the cone of uncertainty does not show the effects of a system. Rather, forecasters use it as a margin of error tool, seeing where the center of the tropical cyclone may likely go. 

Hawaii News Now invited Robert Ballard of the National Weather Service to help clarify what the cone of uncertainty means. 

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