Land based generation of severe storms from single vortex.

June 13, 2017
1430.18z
UNISYS Water Vapor Satellite of north and west hemisphere (click here - thank you)

For the past 48 hours a vortex spanning southern Canada and three states, including Idaho and Montana has sent out storms with wind guts of 20 mph.


June 13, 2017
0330.10z
UNISYS Water Vapor Satellite of north and west hemisphere (see above for 12 hour loop - thank you)

The region involved spans the continent and is located at 45 degrees north latitude. The western vortex is a reverse circulation system and very similarly found with Superstorms.

Instead of moving east, it is stationary. It accumulates water vapor and at some point will send storms that deliver high winds and torrential rain that sustains for hours at a time.

Additionally, Tropicl Storm Calvin manifested in the east Pacific at the same time the 45 degree vortex formed.

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