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Severe WX December 16-17 2019 Severe Weather Outbreak

Kory

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Trying to figure out if the supercells will run ahead of expanding warm sector into Alabama...lots of open space for these right now
The HRRR has nailed this across MS and LA so far. It has some supercells out ahead in the open warm sector later this afternoon and evening.
 

warneagle

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The storm near Atlanta, LA bears watching. Looks like it’s starting to rotate.
 

Kory

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1576518045202.png

SUMMARY...Based on recent radar and environmental data, a strong to
potentially intense tornado with potential peak winds of 110 to 155
mph (EF1-EF3) is likely ongoing.

DISCUSSION...Recent radar signatures from KPOE and KLCH as of 17:31z
reveal an intense supercell characterized by a 0.5-0.9 degree
rotational velocity between 61 and 70 kt. A tornadic debris
signature has also been noted on recent radar scans. These
signatures are occurring in an environment characterized by STP
between 4 and 5. Previous signatures within similar environments
produced tornado-damage-estimated wind speeds from 110 to 155 mph
and confidence is high for likely strong to potentially intense
tornado. A tornado is ongoing and may continue based on the
rotational velocity continuity and the storm moving within a
favorable downstream environment.
 

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Kory

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Looking like the beginnings of an outbreak across Louisiana. Multiple supercells with rotating mesocyclones and a few already producing tornadoes.
 
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