Casebook 21 June 2001
From CSU-CHILL
CSU-CHILL Casebook: 21 June, 2001
The CSU-CHILL radar started to scan a hailstorm in the greater Platteville area at 0040 UTC. The storm continued to intensify as it moved south-southeastward towards Denver International Airport. The storm reached the northern end of the KDEN runway complex at 0123 UTC, and it crossed I-70 near the town of Watkins at 0150 UTC. The weather observers at KDEN reported maximum hailstone diameters of 2 inches. Considerable damage due to a combination of large hail and high winds took place at KDEN, KFTG (Front Range Airport), and in Watkins. The radial velocity patterns indicated the development of a mesocyclone as the storm moved south of I-70. RHI scans through the storm's reflectivity core were made at fairly frequent intervals.
