|Mesoscale Discussion 2206|
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Mesoscale Discussion 2206
NWS Storm Prediction Center Norman OK
1133 AM CST Mon Dec 16 2019
Areas affected...west-central Louisiana...specifically southern
Concerning...Tornado Watch 700...
Valid 161733Z - 161800Z
The severe weather threat for Tornado Watch 700 continues.
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.
...Please see www.spc.noaa.gov for graphic product...
LAT...LON 30969323 31099301 31019285 30879294 30829311 30849324
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