April 23, 2003: Convective Storms w/ Hail Author: Pam Heinselman, CIMMS/OU Last Updated: 30 April 2003

Forecast/Weather:

On 23 April 2002, several bands of convective cells formed over Oklahoma, some containing polarimetric signatures of hail (Figs. 1-4).

Radar Operations:

Start time: 00:40 4/23/03 UTC (19:40 4/22/03 local time)
Stop time: 23:51 4/23/03 UTC (18:51 4/23/03 local time)

Radar/Operational Status:

Hydrometeor Classification Algorithm: Warm season

Operational Delivery:

TBD.

Snapshots:

At 16:54 UTC, hail is indicated by the colocation of high reflectivity and minima in differential reflectivity in the convective cell located near the center of Figures 1-4.

Figure 1: Reflectivity at 16:54 UTC 23 April 2003.	Figure 2: Differential reflectivity at 16:54 UTC 23 April 2003.
Figure 3: Specific differential phase at 16:54 UTC 23 April 2003.	Figure 4: Correlation coefficient at 16:54 UTC 23 April 2003.