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Written by Reed Timmer
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Thursday, 29 October 2009 12:38 |
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A powerful late fall season storm system is plowing across the Central U.S. at this time with not only winter storm conditions across the Central Plains to the northwest of the surface low, but also dangerous severe weather this afternoon and overnight in the warm sector. An incredible low level jet resides over eastern Oklahoma and Texas east to Arkansas and Louisiana, with 70 knot 850 mb flow common to the east of the cold front currently surging across central Texas. CAPE values are in the 2000-3000 J/kg, which is huge for this time of year and the relatively low sun angle, and in combination with the intense low-level jet, 0-1 km EHI values are exceeding 7-8, especially over East Texas into Louisiana where clearing has occurred this afternoon. As of around 1:30 pm CDT, tornado warnings have already been issued for two supercells in northern Louisiana exhibiting very strong low-level rotation. I'm thinking this will be a long night for people to the east of the cold front, especially over East Texas, southern Arkansas, and Louisiana, with several tornado reports likely by morning. If I wasn't being dominated by the Swine Flu here in Michigan, I would definitely be chasing this event. For the rest of you who aren't chasing, be sure to check out the Live Weather page by clicking the "Live" tab above!
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