February 18, 2003: Northern Oklahoma Stratiform Event Author: Pam Heinselman, CIMMS/OU Contributors: Terry Schuur and Kevin Scharfenberg, CIMMS/OU Last Updated: 2 April 2003

Forecast/Weather:

Stratiform rain in northern Oklahoma with forecast for system to come through with heavier rains in eastern Oklahoma later this evening.

Radar Operations:

Start time: 18:41 2/18/2003 UTC (12:41 2/18/2003 local time)
Stop time: 20:30 2/18/2003 UTC (14:30 2/18/2003 local time)

Radar/Software Status:

Hydrometeor Classification Algorithm: Cold season
Radar: Short data collection period (~2 hours) owing to KOUN being down.

Operational Delivery:

KOUN was down.

Snapshots:

Figure 1: Reflectivity field at 19:33 UTC on 02/18/03.	Figure 2: Differential reflectivity at 19:33 UTC on 02/18/03.
Figure 3: Correlation coefficient at 19:33 UTC on 02/18/03.	Figure 4: The hydrometeor classification algorithm classifies snow consistently although this is a stratiform event.