October 3, 2002: Flying Creatures ahead of Squall Line Author: Pam Heinselman, CIMMS/OU Last Updated: 30 April 2003

Forecast/Weather:

On 3 October 2002, a squall line develops over northwestern Oklahoma in association with a surface cold front, and moves slowly southeastward toward central Oklahoma. Ahead of the squall line, their is evidence of flying creatures moving toward KOUN (north to south) and then remaining in the vicinity (2:48-10:38; see first set of Figs.) As the line approaches KOUN, polarimetric signatures indicate flying creatures moving away from KOUN and toward the convective cells (12:27-12:54 UTC; second set of Figs.) A line of flying creatures is also appears behind the line from 12:54-14:34 UTC.

Radar Operations:

Start time: 02:48 10/03/02 UTC (21:48 10/02/02 local time)
Stop time: 15:07 10/03/02 UTC (11:07 10/03/02 local time)

Radar/Operational Status:

Hydrometeor Classification Algorithm: (Warm or Cold season?)

Operational Delivery:

Not applicable.

Snapshots:

Figure 1: Reflectivity at 2:48 UTC 3 October 2002.

Figure 2: Reflectivity at 6:00 UTC 3 October 2002.

Figure 3: Reflectivity at 10:38 UTC 3 October 2002.

Figure 4: Differential reflectivity at 2:48 UTC 3 October 2002.

Figure 5: Differential reflectivity at 6:00 UTC 3 October 2002.

Figure 6: Differential reflectivity at 10:38 UTC 3 October 2002.

Figure 7: Correlation coefficient at 2:48 UTC 3 October 2002.

Figure 8: Correlation coefficient at 6:00 UTC 3 October 2002.

Figure 9: Correlation coefficient at 10:38 UTC 3 October 2002.

Figure 10: Specific differential phase at 2:48 UTC 3 October 2002.

Figure 11: Specific differential phase at 6:00 UTC 3 October 2002.

Figure 12: Specific differential phase at 10:38 UTC 3 October 2002.

Figure 1: Reflectivity at 12:27 UTC 3 October 2002.	Figure 2: Reflecitivity at 12:54 UTC 3 October 2002.
Figure 3: Differential reflectivity at 12:27 UTC 3 October 2002.	Figure 4: Differential reflecitivity at 12:54 UTC 3 October 2002.
Figure 5: Correlation coefficient at 12:27 UTC 3 October 2002.	Figure 6: Correlation coefficient at 12:54 UTC 3 October 2002.
Figure 7: Specific differential phase at 12:27 UTC 3 October 2002.	Figure 8: Specific differential phase at 12:54 UTC 3 October 2002.