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Mesoscale Discussion 413 |
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Mesoscale Discussion 0413
NWS Storm Prediction Center Norman OK
0742 PM CDT Sun Apr 19 2020
Areas affected...Portions of Southern Mississippi
Concerning...Tornado Watch 123...
Valid 200042Z - 200115Z
The severe weather threat for Tornado Watch 123 continues.
SUMMARY...Based on recent radar and environmental data, a strong to
potentially violent tornado with potential peak winds of 120 to 170
mph EF3+ is likely ongoing.
DISCUSSION...Recent radar signatures from KLIX as of 838 PM EDT
reveal an intense supercell characterized by a 0.5 degree rotational
velocity between 60 and 69 kt. A tornadic debris signature has also
been noted on recent radar scans. These signatures are occurring in
an environment characterized by STP between 3 and 4. Previous
signatures within similar environments produced
tornado-damage-estimated wind speeds from 120 to 170 mph and
confidence is high for a strong to potentially violent tornado. A
potential long-track tornado is ongoing and may continue based on
the rotational velocity duration and the storm moving within a
favorable downstream environment.
..Wendt/Guyer.. 04/20/2020
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...MOB...JAN...LIX...
LAT...LON 31448900 31458864 31358843 31158842 31028853 30958882
30948903 30938930 30998958 31198969 31418964 31438926
31448900
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