May 19, 2003: Biological Scatterers and AP w/ convective line over NW Oklahoma Author: Pam Heinselman, CIMMS/OU Last Updated: 21 May 2003

Forecast/Weather:

On 19 May 2003, data were collected during the night time and morning hours to observe birds and insects. The bloom of biological scatterers is most extensive between 3:28-8:35 UTC. Later, a line of convective cells develops over northwest OK, crossing the OK/KS border, and moving northeastward (9:27-10:39 UTC).

Radar Operations:

Start time: 00:32 5/19/03 UTC (19:32 5/18/03 local time)
Stop time: 10:39 5/19/03 UTC (05:39 5/19/03 local time)

Radar/Operational Status:

Hydrometeor Classification Algorithm: Warm season

Operational Delivery:

No operations.

Snapshots:

Example of polarimetric variables associated with biologocial scatterers and AP.

Figure 1: Radar reflectivity at 5:32 UTC 19 May 2003.

Figure 2: Differential reflectivity at 5:32 UTC 19 May 2003.

Figure 3: Correlation coefficient at 5:32 UTC 19 May 2003.

Example of polarimetric variables associated with biological scatterers around KOUN and a convective line of cells.

Figure 1: Radar reflectivity at 9:33 UTC 19 May 2003.

Figure 2: Differential reflectivity at 9:33 UTC 19 May 2003.

Figure 3: Correlation coefficient at 9:33 UTC 19 May 2003.