WXlog/20080809 Thunderstorm RHI Vr: Difference between revisions

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An RHI scan was made through the core of a severe thunderstorm located southeast of the CHILL radar.  Maximum echo tops were ~16 km AGL (17.4 km / 57 kft MSL).  The unfolded radial velocity patterns imply the existence of a sloping updraft that connects low level convergence to strong divergence centered on the echo summit.  A positive Zdr column is suggested in the storm inflow area while a hail signature is seen in the echo core at near-ground heights.
An RHI scan was made through the core of a severe thunderstorm located southeast of the CHILL radar.  SPC storm reports show an observation of 0.75 inch hail, heavy rain and strong winds due to this storm at Wiggins at 0136 UTC.  Maximum echo tops were ~16 km AGL (17.4 km / 57 kft MSL).  The unfolded radial velocity pattern shows strong divergence centered on the echo summit.  This upper level divergence is driven by an intense, sloping updraft.  A Zdr hail signature is seen at ~53 km range in the echo core at near-ground heights.


[[Image:9aug2008 tstm updraft rhi z.png|center]]
[[Image:9aug2008 tstm updraft rhi z.png|center]]

Latest revision as of 07:00, 26 March 2020

An RHI scan was made through the core of a severe thunderstorm located southeast of the CHILL radar. SPC storm reports show an observation of 0.75 inch hail, heavy rain and strong winds due to this storm at Wiggins at 0136 UTC. Maximum echo tops were ~16 km AGL (17.4 km / 57 kft MSL). The unfolded radial velocity pattern shows strong divergence centered on the echo summit. This upper level divergence is driven by an intense, sloping updraft. A Zdr hail signature is seen at ~53 km range in the echo core at near-ground heights.