Casebook 20 May 2004: Difference between revisions
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During the early evening hours of 20 May, 2004 (21 May on UTC), an isolated thunderstorm developed approximately 35 km south-southwest of the CSU-CHILL radar. This storm rapidly intensified; 1.5 inch diameter hail was reported at 0031 UTC. As the storm moved eastward into Morgan County, a weak echo region (WER) was evident in association with main updraft. (The locally encircled reflectivity minimum visible on PPI sweep 2 (azmiuth 101 degrees / range 76 km) was surmounted by a high reflectivity area on sweep 7. See the first two VCHILL example images below.) A thunderstorm RHI scan through the WER at 0230 UTC is shown in the third VCHILL example image. (Note: severe weather spotters reported a tornado 1 mile northwest of the city of Fort Morgan at 0229 UTC.) | During the early evening hours of 20 May, 2004 (21 May on UTC), an isolated thunderstorm developed approximately 35 km south-southwest of the CSU-CHILL radar. This storm rapidly intensified; 1.5 inch diameter hail was reported at 0031 UTC. As the storm moved eastward into Morgan County, a weak echo region (WER) was evident in association with main updraft. (The locally encircled reflectivity minimum visible on PPI sweep 2 (azmiuth 101 degrees / range 76 km) was surmounted by a high reflectivity area on sweep 7. See the first two VCHILL example images below.) A thunderstorm RHI scan through the WER at 0230 UTC is shown in the third VCHILL example image. (Note: severe weather spotters reported a tornado 1 mile northwest of the city of Fort Morgan at 0229 UTC.) | ||
[http://chill.colostate.edu/java/vchill.php?sweep=xlab.chill.colostate.edu:2510*/dsk/dnf/data/2004/05/21/%20DIR*CHL20040521_022732%20DOP1%20PPI*Sweep%2003¢er= | [http://chill.colostate.edu/java/vchill.php?sweep=xlab.chill.colostate.edu:2510*/dsk/dnf/data/2004/05/21/%20DIR*CHL20040521_022732%20DOP1%20PPI*Sweep%2003¢er=45.,-10.&range=50.&plot=dBZ example in VCHILL] | ||
[http://chill.colostate.edu/java/vchill.php?sweep=xlab.chill.colostate.edu:2510*/dsk/dnf/data/2004/05/21/%20DIR*CHL20040521_022732%20DOP1%20PPI*Sweep%2007¢er= | [http://chill.colostate.edu/java/vchill.php?sweep=xlab.chill.colostate.edu:2510*/dsk/dnf/data/2004/05/21/%20DIR*CHL20040521_022732%20DOP1%20PPI*Sweep%2007¢er=45.,-10.&range=50.&plot=dBZ example in VCHILL] | ||
[http://chill.colostate.edu/java/vchill.php?sweep=xlab.chill.colostate.edu:2510*/dsk/dnf/data/2004/05/21/%20DIR*CHL20040521_023028%20MPRHI1%20RHI*Sweep%2004¢er=0.,0.&range=90.&plot=dBZ example in VCHILL] | |||
[[Casebook 29 October 2003|prev]] [[Casebook 27 June 2004|next]] | [[Casebook 29 October 2003|prev]] [[Casebook 27 June 2004|next]] | ||
[[Category:Casebook|20040520]] | [[Category:Casebook|20040520]] | ||
[[Category:Weak Echo Region|20040520]] | [[Category:Weak Echo Region|20040520]] | ||
Revision as of 08:18, 29 December 2007
CSU-CHILL Casebook: 20 May, 2004
During the early evening hours of 20 May, 2004 (21 May on UTC), an isolated thunderstorm developed approximately 35 km south-southwest of the CSU-CHILL radar. This storm rapidly intensified; 1.5 inch diameter hail was reported at 0031 UTC. As the storm moved eastward into Morgan County, a weak echo region (WER) was evident in association with main updraft. (The locally encircled reflectivity minimum visible on PPI sweep 2 (azmiuth 101 degrees / range 76 km) was surmounted by a high reflectivity area on sweep 7. See the first two VCHILL example images below.) A thunderstorm RHI scan through the WER at 0230 UTC is shown in the third VCHILL example image. (Note: severe weather spotters reported a tornado 1 mile northwest of the city of Fort Morgan at 0229 UTC.)
