4LastChance20July00

Date: 20 Jul 2000

Location: Last Chance, CO

Chase Partners: Scott Longmore and Patrice Kucera

Summary: Started the day near Watkins and after initiation headed toward Dear Trail. Looked like most of the action was east of my location so I headed north out of Dear Trail

and then east on Hwy 36. After arriving near the main updraft base I witnessed an incredible non rotating wall cloud near Linden, CO. It was sucking up alot of dust from the surrounding fields right into the updraft. You could actually hear the dirt being sucked up into it. After it dissipated we headed toward Limon down Hwy 71 and called it a day and had dinner there.

Looking East on Highway 36 North of Deer Trail

1 2 3 4

5 6 7 8

Life cycle of the wall cloud that formed near Lindon, CO, near where the updrafts in the above picture were going up. Sequence 1 to 8 took about 10 minutes. It was an amazing sight watching the inflow of dust in the field being consumed into this.

There is some debate amongst the chasers I was with when this event occurred. In my

opinion this was a large gustnado as it occurred on the outflow boundary and there was

no visible rotation anywhere near it above. It was brief and occurred about a mile to our

west, taken from the same spot that the wall cloud pictures were taken, about 15 minutes after

the wall cloud had dissipated.

Severe Weather Reports for 20 July 2000 from SPC.