Thread: Analysis charts and the difficulty of telling the difference betweentornadoes and volcanoes
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Old August 24th 14, 03:48 PM posted to uk.sci.weather
David Mitchell[_4_] David Mitchell[_4_] is offline
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Default Analysis charts and the difficulty of telling the differencebetween tornadoes and volcanoes
On Sunday, August 24, 2014 2:49:14 PM UTC+1, Weatherlawyer wrote:
http://www.opc.ncep.noaa.gov/Loops/



You want the "Pacific Products" page and select the charts for the "North Pacific Surface Analysis". If you are running Linux you need to select the Javascript application.



Look at the blocked situation on the west coast of North America. When a Low pushes through two fairly far apart anticyclones, tornadoes tend to dominate.



When the anticyclones are virtually connected as is the case with the egg-timer shaped system off the coast on the 21st, the situation is relieved as volcanic events predominate.



http://weathercharts.wordpress.com/2...and-volcanoes/

I usually find the following chart helpful with identification.
Tornado = ˅
Volcano = ˄
The egg timer generally indicates a tornado sat on a volcano. :-)

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