The National Weather Service in Burlington released a timelapse video on Friday, January 12, in an effort to show how quickly ice jams build up on rivers. On January 17, the weather service said the river rose 7.75 feet in approximately 14 minutes.
This video shows an ice jam forming on the Ausable River in Au Sable Forks, in northern New York, on Friday. The service said it was shot over three hours, from 12 pm to 3 pm.
Responding to a viewer, the service said: “Ice jams like this are caused when ice breaks up on rivers and the chunks of ice then jam up somewhere downstream on the river. This causes the regular flow of the river to be disrupted, leading to rapid rises (like this) until the ice jam breaks up and the regular flow resumes.” Credit: NWS Burlington via Storyful