View source for Casebook 11 July 2001

==CSU-CHILL Casebook: 11 July, 2001==
An area of severe thunderstorms approached the city of Greeley from the southwest around 0200 UTC.  Strong, low level outflow winds developed as the storm began to affect the city.  Considerable roof and tree damage was incurred.  The vertical structure of the approaching gust front can be seen in the 0210 UTC RHI scans.  The thunderstorm outflow generated a well defined arcus cloud that was photographed from the CHILL radar site.  The radar was located between the gust front / fine line and the main precipitation core at 0225 UTC (see the first VCHILL link below).  By 0458 UTC, most of the convective activity had moved into the northeast azimuth quadrant and organized into a squall line.  (See the second VCHILL link below).  An RHI scan taken through the squall line at 0504 UTC intercepted the trailing stratiform rain area.

[http://chill.colostate.edu/java/vchill.php?sweep=xlab.chill.colostate.edu:2510*/dsk/dnf/data/2001/07/11/%20DIR*CHL20010711_022302%20GUSTSUR%20PPI*Sweep%2003&center=0.,0.&range=25.&plot=Vel example in VCHILL]

[http://chill.colostate.edu/java/vchill.php?sweep=xlab.chill.colostate.edu:2510*/dsk/dnf/data/2001/07/11/%20DIR*CHL20010711_045800%20DOP1%20PPI*Sweep%2002&center=55.,60.&range=100.&plot=dBZ example in VCHILL]

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[[Category:Casebook|20010711]]
[[Category:Gust Front|20010711]]
[[Category:Squall Line|20010711]]