June 9, 2002: Convective Cells and Stratiform Precipitation Author: Pam Heinselman, CIMMS/OU Last Updated: 24 April 2003

Forecast/Weather:

During the evening on 9 June 2002, a west-to-east-oriented band of convective cells develops across central Oklahoma. The cells west of KOUN have high KDP and ZDR values, suggesting heavy rainfall (Figs. 4-9). These cells move northeastward and begin to decay between 3-4 UTC, with stratiform precipitation remaining through the rest of the period. Polarimetric variables indicate the presence of biological scatterers around KOUN from 1:57-9:59 UTC.

Radar Operations:

Start time: 00:23 6/9/02 UTC (19:23 6/8/02 local time)
Stop time: 15:26 6/9/02 UTC (10:26 6/9/02 local time)

Radar/Operational Status:

Hydrometeor Classification Algorithm: Cold season

Operational Delivery:

Not applicable.

Snapshots:

Figure 1: Reflectivity at 1:19 UTC 9 June 2002.

Figure 2: Reflectivity at 2:09 UTC 9 June 2002.

Figure 3: Reflectivity at 3:11 UTC 9 June 2002.

Figure 4: Differential reflectivity at 1:19 UTC 9 June 2002.

Figure 5: Differential reflectivity at 2:09 UTC 9 June 2002.

Figure 6: Differential reflectivity at 3:11 UTC 9 June 2002.

Figure 7: Specific differential phase at 1:19 UTC 9 June 2002.

Figure 8: Specific differential phase at 2:09 UTC 9 June 2002.

Figure 9: Specific differential phase at 3:11 UTC 9 June 2002.