It's not a Concrete Block Foundation DI. It's a DI for concrete block (CMU) and concrete construction. As in, the whole house was built with concrete.
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tornado examiner
Member
Oh. I'm guessing that could be a bit of weird Di for violent tornadoes.
It's very much worth noting the church was already observed by Tim Marshall, the ASCE, HAAG, SEI, and AMS and their consensus was 170 mph, so a re-rating would require some pretty monumental "going against the grain" by NWS Paducah.
Here's the full paper
Here's the full paper
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tornado examiner
Member
Ah…well…they’re using the wrong DI in retrospect. So, maybe it doesn’t count too much?
Very true. However, it's also unlikely any of these institutions will come back and amend their 170 mph estimate, so it'll be up to the meteorologists at NWS Paducah to override it. Will they do it?
I think it's safe to say, while I'm optimistic, I still have a healthy amount of skepticism about this whole situation. Is one small, mostly irrelevant office's decision to go against precedent and rate a tornado appropriately going to lead to a reversal of a whole decade's worth of terrible judgements? Not on its own I don't think. We still have a ways to go. The new EF scale is still years away as well. Vigilance is the key.
Union
Member
Im quite certain this is saying what the *minimum* windspeed of a religious building fully collapsed is, so what was at the time the LB max DOD. They said 170, the current (not 100% up to date but the most recent the public has), is 175mph. Still pretty accurate.
tornado examiner
Member
So no EF5 still…
Excellent point. This is how NWS Paducah should approach it if/when they upgrade as well. Again, seriously, well done.
This isn't the one with the rusted bolts is it @buckeye05?
Union
Member
The number that correlates with the *lowest* possible windspeed needed to completely destroy a CARB does not equal the windspeed needed to destroy a CARB with significantly better construction. Also with information known to us that is newer than the Marshall paper, First Presbyterian is a very solid EF5-plausible indicator.
Union
Member
Based on the imagery from Tim Marshall, yes some bolts did seem to be rusted but I'm not sure this significantly affected the building integrity
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Jacob Aden
Member
I understand why everybody is talking about Mayfield, but I think the much bigger offender getting underrated was that Bowling Green storm. Especially considering he dividing line between violent and strong on the EF scale. That is a tornado prime for re-evaluating