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Enhanced Fujita Ratings Debate Thread

VultureDirge89 said:
So the warning for Diamondhead still says radar indicated but I heard someone on a stream say there's a confirmed tornado on the ground...Radarscope is glitching out for me so I can't tell, the storm isn't appearing at all on the map. What's going on here?
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We got a thread for that :) this is for ef ratings.

CheeselandSkies

Thread 'Severe Weather 3/9 - 3/12'

Given the notable nature and resulting extensive discussion of the activity Thursday evening through yesterday, a number of people expressed support for the idea that the next round of severe weather for early-mid next week should be split off into its own thread.

Perhaps the title for @Sharpy's thread could be changed to 3/4 - 3/8 (continuing through tomorrow) and we'll pick up the discussion for Monday and beyond in here.

Tuesday 3/10 has been the main day of interest for some time, with a broad 15% Day 4 contour now outlined by SPC from south-central Texas northeastward to...
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Kds86z said:
We got a thread for that :) this is for ef ratings.

CheeselandSkies

Thread 'Severe Weather 3/9 - 3/12'

Given the notable nature and resulting extensive discussion of the activity Thursday evening through yesterday, a number of people expressed support for the idea that the next round of severe weather for early-mid next week should be split off into its own thread.

Perhaps the title for @Sharpy's thread could be changed to 3/4 - 3/8 (continuing through tomorrow) and we'll pick up the discussion for Monday and beyond in here.

Tuesday 3/10 has been the main day of interest for some time, with a broad 15% Day 4 contour now outlined by SPC from south-central Texas northeastward to...
  • Like
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My bad. Overtired and stressed out from life and posted this in the wrong thread lol.
 
Grand Poo Bah said:
The fact the prelim rating is taking so long is making me optimistic. My guess is 180-190 mph EF4. There's a serious issue if they rate this the same as Kankakee. The difference in the severity of damage between the two is massive.
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I dunno about rating 190 MPH, its possible but not likely in my opinion (though I have no doubt in my mind it reached that at one point or another). But 170-185 MPH seems like a solid range, even if its at the lower end of said range. If they go 165 I wont get too upset but anything below that seems fishy to me.

If they rate it 150 (same as Kankakee/Aroma Park) then that's simply ludicrous. Hell I'd argue Aroma Park could be high end EF-3 (160 to 165)
 
Ozonelayer said:
I dunno about rating 190 MPH, its possible but not likely in my opinion (though I have no doubt in my mind it reached that at one point or another). But 170-185 MPH seems like a solid range, even if its at the lower end of said range. If they go 165 I wont get too upset but anything below that seems fishy to me.

If they rate it 150 (same as Kankakee/Aroma Park) then that's simply ludicrous. Hell I'd argue Aroma Park could be high end EF-3 (160 to 165)
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It almost points to the utility of switching to a finer-point scale (something like the UK's TORRO, which has 12 tiers), at least for research and climatology purposes. As far as the public is concerned there's no difference between a 140 MPH EF3 and a 165 MPH one. However, we here all know from how the DIs are actually applied in real surveys that there is quite a substantial difference in tornado intensity, and consequent risk to life and property, between those two ends of the same rating.
 
Grand Poo Bah said:
The fact the prelim rating is taking so long is making me optimistic. My guess is 180-190 mph EF4. There's a serious issue if they rate this the same as Kankakee. The difference in the severity of damage between the two is massive.
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Under the old scale, I believe both would be F4. As Nick Krasznavolgyi pointed out, the Aroma Park tornado did collapse a home - on S. Sandbar Rd - in a fashion technically corresponding to something like low-range revised EF4 while doing respectably strong contextual damage. But the Indiana tornado was certainly even stronger.
 
Now that the survey is on DAT, it seems the "we found EF2 max in Lake Village" was legit, and this is why:
1773357833312.png
They never added the DIs for a half of the tornado's width through town. EF4 is probably out of the question per above but meh.
 
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