|Mesoscale Discussion 229|
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Mesoscale Discussion 0229
NWS Storm Prediction Center Norman OK
0535 PM CDT Tue Mar 24 2020
Areas affected...northern AL and southern middle TN
Concerning...Tornado Watch 61...
Valid 242235Z - 250000Z
The severe weather threat for Tornado Watch 61 continues.
SUMMARY...Tornado potential will likely maximize through 8pm CDT
near the AL/TN border. A strong tornado is possible.
DISCUSSION...Trends in KHTX VAD data show a strengthening of the
wind field in the 2-3km layer during the past 1-2 hours. This trend
seemed to be necessary in order for more organized low-level
mesocyclone development. The intensification of flow is resulting
in around 300 m2/s2 0-1km SRH per observed storm motions. Surface
observations show temperature/dewpoint spreads around 10 deg F and
reduced mixing compared to areas farther south. It continues to
appear that the corridor for greatest tornado risk will focus near
the AL/TN border with the stronger updrafts/supercells through the
...Please see www.spc.noaa.gov for graphic product...
LAT...LON 35008807 35298740 35318629 35108604 34828598 34578616
34518795 34678819 35008807
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