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Severe Weather 2023

One thing I'm noticing with all these tornadoes today is a noticeable lack of debris signatures on CC. Hell even the velocity signature didn't look that impressive over Matador proper but the damage coming out is telling a VERY different story. I wonder if there is any rhyme or reason?
 
TH2002 said:
One thing I'm noticing with all these tornadoes today is a noticeable lack of debris signatures on CC. Hell even the velocity signature didn't look that impressive over Matador proper but the damage coming out is telling a VERY different story. I wonder if there is any rhyme or reason?
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That is something that I'm always curious about. Sometimes you'll get a huge CC drop from an EF1, then we see incidents like this where a strong/violent tornado strikes a populated area, and there's no real distinct TDS.

I remember the Arabi, LA EF3, the Fredericktown, MO EF3, and the Elon, VA EF3 all had lackluster CC presentations, despite them being very destructive events. I have noticed that some HP/rain-wrapped tornadoes tend to be a little less apparent on CC. Fredericktown and Elon were both rain-wrapped, and today's tornado in Matador was also largely rain-wrapped.
 
buckeye05 said:
That is something that I'm always curious about. Sometimes you'll get a huge CC drop from an EF1, then we see incidents like this where a strong/violent tornado strikes a populated area, and there's no real distinct TDS.

I remember the Arabi, LA EF3, the Fredericktown, MO EF3, and the Elon, VA EF3 all had lackluster CC presentations, despite them being very destructive events. I have noticed that some HP/rain-wrapped tornadoes tend to be a little less apparent on CC. Fredericktown and Elon were both rain-wrapped, and today's tornado in Matador was also largely rain-wrapped.
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Because correlation coefficient is a bin-averaged quantity, if there is a lot of precipitation mixing in with the debris (i.e. values around 1), it will be harder to get significantly lowered correlation coefficient.
 
andyhb said:
Because correlation coefficient is a bin-averaged quantity, if there is a lot of precipitation mixing in with the debris (i.e. values around 1), it will be harder to get significantly lowered correlation coefficient.
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That makes sense. I figured there was some sort of correlation like that but I didn't know the actual science behind it until now.

Another think I've noticed is that lofted sheet metal seems to intensify a TDS. Over the years I've noticed really intense CC drops when structures like chicken houses and industrial metal buildings get hit, even if the tornado isn't particularly strong.
 
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