UFO Tunnel Cloud Appears Over Huntington Beach, California On Sept 3, 2019, UFO Sighting News.

Date of sighting: Sept 3, 2019
Location of sighting: Huntington Beach Pier, California, USA
Source: https://www.reddit.com/r/orangecounty/comments/czt3u8/taken_from_the_hb_pier_this_strange_cloud_came/

Its a well known fact among UFO researchers that these long clouds with perfect dimensions are tunnels for UFOs to travel through safely and unseen by human eyes. The 1989 Rapid City, South Dakata event of four such clouds all starting over the city documented over 25 727 size glowing foreseen balls of light appearing at the beginning of each of the four tunnels, as if taking turns...as one began moving down the cloud tunnel...another would appear in a cloud tunnel two tunnels over and begin to pulse and then move slowly thought the tunnel, easily seen due to its powerful light hitting the edges of the tunnel from within. Each sat still for about 10 seconds, then began its journey slowly...increasing speed as it moved until it was moving at the speed of a jet as it disappeared over the horizon within the tunnels. 

This UFO tunnel cloud over Huntington, California is the same. It allows UFOs to rise up our of under ground and under water bases and to move across the sky unseen so that they can reach another alien base in a different location on Earth. 
Scott C. Waring

Eyewitness states: 
Taken from the HB pier. This strange cloud came from Newport, and was gone as quickly as it arrived. It brought a lot of wind with it. Was very pretty though! Never seen anything like it in my life. Rare occurrence?