🧵
For the 6th time in the past 6 years US tornado counts through 22 April are below average (2005-2020)
I was curious ... does a quiet start suggest a quiet year?
Data: @NOAA @NWSSPC
For the 6th time in the past 6 years US tornado counts through 22 April are below average (2005-2020)
I was curious ... does a quiet start suggest a quiet year?
Data: @NOAA @NWSSPC
The answer is -- yes -- a quiet start does to some degree suggest a quiet year
Here is the relationship of tornadoes through April 22nd and the year's total
Counts through April 22nd average ~28% of the annual total & regression r^2 is ~0.39
Data: @NOAA @NWSSPC
Here is the relationship of tornadoes through April 22nd and the year's total
Counts through April 22nd average ~28% of the annual total & regression r^2 is ~0.39
Data: @NOAA @NWSSPC
Evidence suggests decreasing tornado incidence
Our work shows a long-term decline in normalized tornado losses (in fact the decline is so pronounced it is evidence in non-normalized data as well)
Data updated from: doi.org/10.1080/174778…
Our work shows a long-term decline in normalized tornado losses (in fact the decline is so pronounced it is evidence in non-normalized data as well)
Data updated from: doi.org/10.1080/174778…
In fact, violent tornadoes are down sharply in the US since 1950
Source: @washingtonpost via @NWSSPC
Source: @washingtonpost via @NWSSPC
Why are tornadoes apparently decreasing?
🤷♂️
I suppose it is climate change, but I'm not aware of any formal attribution studies
/END
🤷♂️
I suppose it is climate change, but I'm not aware of any formal attribution studies
/END
*6th time in past 9 years
[edit button, plz]
[edit button, plz]
• • •
Missing some Tweet in this thread? You can try to
force a refresh
