Wednesday, May 8, 2013

PGLM Flash Extent Density Unusually Low for Severe Supercells

Below is a 4 panel image of Flash Extent Density, Composite Reflectivity, and MESH. With two supercells indicating large hail via MESH, one would expect larger values of FED, which have only maxed out around 5 flashes/min. However, this may have something to do with distance from the LMA centroids. We will continue to monitor. In any case, the PGLM products are very useful for aviation and public safety interests for points downstream.



**Update 2107 UTC**
Monitoring the storm following Flash Extent Density Trace Tool, it appears many of the storms have entered a period of decreasing lightning activity. This is also apparent in the plan view of FED. This would suggest a downward trend in storm severity, but will monitor to see if this comes to fruition.


Austin/Hampshire

1 comment:

  1. I had the chance to check the raw data going into the PGLM production. Unfortunately, the OKLMA has been running with 10 of its 19 sensors. The result is that detections are decreased, which is likely weakening our PGLM output. We should see some storms move closer to the network later this afternoon to gives us some more opportunities with the PGLM.

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