ROTATE 2004
Selected radar images from DOW3 on 12 May 2004
Tornadic Supercell
Attica, KS - Harper, KS
Radar 7.5 km east of Attica, KS
00:47 - 01:05 UTC
Tornado #2
East is up and range rings are 1.6 km
0055 UTC
Genesis reflectivity at 1.0 degree elevation
Genesis reflectivity at 15.0 degrees elevation
East is up and range rings are 1.1 km
0057 UTC
Doppler velocity at 0.3 degree elevation
Reflectivity at 0.3 degree elevation
0101 UTC
Doppler velocity at 0.4 degree elevation
0105 UTC
RHI Doppler velocity through tornado in Attica
RHI Reflectivity through tornado in Attica
Radar 7.5 km east of Attica, KS
01:23 - 01:40 UTC
Tornado #4
East is up and range rings are 0.4 km
0123 UTC
Doppler velocity at 6.0 degrees elevation
Reflectivity at 6.0 degrees elevation
0127 UTC
Reflectivity at 6.0 degrees elevation
0134 UTC
Doppler velocity at 0.7 degrees elevation
0136 UTC
Doppler velocity at 9.0 degrees elevation
East is up and range rings are 0.3 km
0139 UTC
Reflectivity at 15.0 degrees elevation
0140 UTC
Reflectivity at 5.0 degrees elevation
Reflectivity at 7.0 degrees elevation
Doppler velocity at 11.0 degrees elevation
Reflectivity of concentric eyes at 11.0 degrees elevation
Radar 4.5 km south of Harper, KS
01:59 - 02:19 UTC
Tornado #4, #5, #6
North is up and range rings are 3.5 km
0159 UTC
Doppler velocity at 6.0 degrees elevation
Reflectivity at 6.0 degrees elevation
Tornado #5
North is up and range rings are 5.0 km
0156 UTC
Reflectivity at 7.0 degrees elevation
Tornado #6
North is up and range rings are 2.2 km
0202 UTC
Reflectivity at 4.0 degrees elevation
0215 UTC
Reflectivity at 0.6 degrees elevation
North is up and range rings are 0.2 km
0219 UTC
Doppler velocity at 0.3 degrees elevation
More radar images from a later time period including a tornado with Doppler velocities in excess of 100 m/s (F4 range) will be forthcoming.
Questions and/or Comments:
Curtis Alexander
Research Scientist
National Oceanic and Atmospheric Administration (NOAA)
curtis.alexander@noaa.gov
Dr. Joshua Wurman
Research Scientist
Center for Severe Weather Research
jwurman@cswr.org
Center for Severe Weather Research
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