10/21/07 DISC: OK

[Jonathan Whitehead]

Yeah it was pretty interesting to watch those cells form last night even though they were elevated. Once again Norman was missed.
But if not for those severe storms I would have been in for a rude awakening this morning when I walked out the door. With all those storms going severe last night, it got me looking at forecasts and forecasts discusssion and I saw todays forecast with a high of 48.The AFD wording of RAW was pretty right on for today: cold, wet, & windy.
Gets me thinking of song I have in my head today:
"Rain drops keep falling on my head.....Crying's not for me b/c Im free..nothings worrying me"

 

[Mike Gibson]

This is a good example of how the single-radar 88D hail algorithms tend to overestimate, particularly when there is high reflectivity indicative of copious amounts of small, wet hail (as was actually reported with this cell). Not to brag, but our new NSSL multi-radar/multi-sensor hail algorithm was right on the money with a swath of 3/4" to 1" maximum hail size.

I'm not so sure about that. The location of the report was less than 40 miles from KTLX so the single radar had a good look at the cell. My guess is that the fast storm motion caused the integration line in the MR/MS hail algorithm to only partially intersect the cell, resulting in a lower MEHS.

Mike