The ground disturbance was on north side of a line of trees along the river bank.   Riverside Reservoir sits just to the West of the ground rotation.

Doppler radar detected rotation so a tornado warning  was sounded on NOAA weather radio alerting area residents to take cover immediately. 

Of course not being of sound mind or having any common sense I sat in front of this very dangerous storm.

NWS warning

Detailed Weather Data

The ground disturbance was definitely rotating rapidly and formed a clear tube in the center.

Faster and faster it twisted as the tube grew larger and begin to attach to the base of the wall cloud.

A funnel shape begin to form at the base of the cloud and you could see it was going to form into a classic tornado.

The base begins to tighten up making the wall cloud shrink in around it.

Next it begins to form a cone shape from the center of the rotation.

Multiple vortices come out the side of the main tornado.  You can see at this point we have a second touchdown.

Talking to locals who were on the other side of this tornado they said that this second tornado was spinning fast and furious.  

It is at this point one family told me they headed for the basement. They had been watching the tornado form from their home, and then realized it was not safe to stay above ground anymore.

Their neighbors, shaken by this experience, decided they had better build a tornado shelter since they did not have a basement. Sounds like a great idea to me.. 

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