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Severe Weather 2023

Interesting tidbit: 2023 has had 709 watches issued now. This is the most issued since 2019 (708). The other years to exceed 700 watches going back to 2000 are: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2019, and now 2023. The years to exceed 800 since 2000 are: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2008, 2009, and 2011. The top 4 years with the most watches ever issued: 2003 (977), 2008 (967), 2004 (921), and 2011 (900).

Grant Total (2000 thru 2019): 17,244 watches issued.
 
CheeselandSkies said:
So if watch count can be taken as a proxy for overall activity (assuming the number of "Atmospheric Anti-Climax" watches is relatively small and remains fairly consistent year to year); it wasn't my imagination that the 2000s were much more active for severe storms and tornadoes than the 2010s.
Click to expand...
Yep. As far as just PDS Watches:
2000: 17 PDS TOR/2 PDS SEV
2001: 21 PDS TOR/5 PDS SEV
2002: 13 PDS TOR/1 PDS SEV
2003: 49 PDS TOR/4 PDS SEV
2004: 25 PDS TOR/5 PDS SEV
2005: 18 PDS TOR/1 PDS SEV
2006: 18 PDS TOR/1 PDS SEV
2007: 17 PDS TOR/0 PDS SEV
2008: 22 PDS TOR/3 PDS SEV
2009: 6 PDS TOR/5 PDS SEV
2010: 12 PDS TOR/0 PDS SEV
2011: 18 PDS TOR/2 PDS SEV
2012: 9 PDS TOR/0 PDS SEV
2013: 5 PDS TOR/3 PDS SEV
2014: 4 PDS TOR/1 PDS SEV
2015: 1 PDS TOR/1 PDS SEV
2016: 2 PDS TOR/0 PDS SEV
2017: 10 PDS TOR/1 PDS SEV
2018: 2 PDS TOR/0 PDS SEV
2019: 4 PDS TOR/3 PDS SEV
2020: 3 PDS TOR/2 PDS SEV
2021: 5 PDS TOR/1 PDS SEV
2022: 4 PDS TOR/1 PDS SEV

Grand Total (2000-2022): 282 PDS TOR/42 PDS SEV

By Decade:

2000-2009: 206 PDS TOR/27 PDS SEV
2010-2019: 64 PDS TOR/11 PDS SEV

Most PDS Tornado Watches issued in a month: 34 in May 2003
2nd most PDS Tornado Watches issued in a month: 12 in April 2011
Most PDS Tornado Watches issued in one day: 9 on May 30th, 2004
 
JPWX said:
Yep. As far as just PDS Watches:
2000: 17 PDS TOR/2 PDS SEV
2001: 21 PDS TOR/5 PDS SEV
2002: 13 PDS TOR/1 PDS SEV
2003: 49 PDS TOR/4 PDS SEV
2004: 25 PDS TOR/5 PDS SEV
2005: 18 PDS TOR/1 PDS SEV
2006: 18 PDS TOR/1 PDS SEV
2007: 17 PDS TOR/0 PDS SEV
2008: 22 PDS TOR/3 PDS SEV
2009: 6 PDS TOR/5 PDS SEV
2010: 12 PDS TOR/0 PDS SEV
2011: 18 PDS TOR/2 PDS SEV
2012: 9 PDS TOR/0 PDS SEV
2013: 5 PDS TOR/3 PDS SEV
2014: 4 PDS TOR/1 PDS SEV
2015: 1 PDS TOR/1 PDS SEV
2016: 2 PDS TOR/0 PDS SEV
2017: 10 PDS TOR/1 PDS SEV
2018: 2 PDS TOR/0 PDS SEV
2019: 4 PDS TOR/3 PDS SEV
2020: 3 PDS TOR/2 PDS SEV
2021: 5 PDS TOR/1 PDS SEV
2022: 4 PDS TOR/1 PDS SEV

Grand Total (2000-2022): 282 PDS TOR/42 PDS SEV

By Decade:

2000-2009: 206 PDS TOR/27 PDS SEV
2010-2019: 64 PDS TOR/11 PDS SEV

Most PDS Tornado Watches issued in a month: 34 in May 2003
2nd most PDS Tornado Watches issued in a month: 12 in April 2011
Most PDS Tornado Watches issued in one day: 9 on May 30th, 2004
Click to expand...
Interesting that the number of PDS TOR watches dropped off after… you know… 2011.

I wonder why that could be? Did the SPC change the criteria for PDS WWs around that time or….???
 
I have made spreadsheets on tropical activity from each basin, PDS Tornado/Severe Thunderstorm Watches, Tropical PowerPoints for each Atlantic tropical system since 2000, and hurricane/tornado activity based on ENSO since 2000.
 
KevinH said:
Interesting that the number of PDS TOR watches dropped off after… you know… 2011.

I wonder why that could be? Did the SPC change the criteria for PDS WWs around that time or….???
Click to expand...
Yeah. I don't think they've changed the criteria, but it's just been dead hyperactive tornado/severe wise since 2011 with the exception of brief ramp ups here and there. In fact, going back to 2000, there's been 13 years below average with just 11 years above average. Average is 1200 tornadoes per year.
2000 was ENSO La Nina with 1,075 (B)
2001 was ENSO Neutral with 1,215 (A)
2002 was ENSO El Nino with 934 (B)
2003 was ENSO La Nina with 1,374 (A)
2004 was ENSO Modoki El Nino with 1,817 (A) (Record Highest)
2005 was ENSO Neutral with 1,265 (A)
2006 was ENSO Neutral with 1,103 (B)
2007 was ENSO La Nina with 1,092 (B)
2008 was ENSO La Nina with 1,692 (A)
2009 was ENSO El Nino with 1,159 (B)
2010 was ENSO La Nina with 1,282 (A)
2011 was ENSO Neutral with 1,705 (A)
2012 was ENSO Neutral with 939 (B)
2013 was ENSO Neutral with 916 (B)
2014 was ENSO El Nino with 929 (B)
2015 was ENSO El Nino with 1,178 (B)
2016 was ENSO La Nina with 974 (B)
2017 was ENSO Neutral with 1,418 (A)
2018 was ENSO Neutral with 1,121 (B)
2019 was ENSO Weak El Nino with 1,529 (A)
2020 was ENSO La Nina with 1,086 (B)
2021 was ENSO La Nina with 1,313 (A)
2022 was ENSO La Nina with 1,152 (B)
2023 is ENSO El Nino with preliminary count of 1,661 (as of October 1st when I updated the spreadsheet) (A)
 
KevinH said:
Of COURSE you have lol
Click to expand...
Hey I love collecting data and especially that which can help with long range forecasting.
 
JPWX said:
Yep. As far as just PDS Watches:
2000: 17 PDS TOR/2 PDS SEV
2001: 21 PDS TOR/5 PDS SEV
2002: 13 PDS TOR/1 PDS SEV
2003: 49 PDS TOR/4 PDS SEV
2004: 25 PDS TOR/5 PDS SEV
2005: 18 PDS TOR/1 PDS SEV
2006: 18 PDS TOR/1 PDS SEV
2007: 17 PDS TOR/0 PDS SEV
2008: 22 PDS TOR/3 PDS SEV
2009: 6 PDS TOR/5 PDS SEV
2010: 12 PDS TOR/0 PDS SEV
2011: 18 PDS TOR/2 PDS SEV
2012: 9 PDS TOR/0 PDS SEV
2013: 5 PDS TOR/3 PDS SEV
2014: 4 PDS TOR/1 PDS SEV
2015: 1 PDS TOR/1 PDS SEV
2016: 2 PDS TOR/0 PDS SEV
2017: 10 PDS TOR/1 PDS SEV
2018: 2 PDS TOR/0 PDS SEV
2019: 4 PDS TOR/3 PDS SEV
2020: 3 PDS TOR/2 PDS SEV
2021: 5 PDS TOR/1 PDS SEV
2022: 4 PDS TOR/1 PDS SEV

Grand Total (2000-2022): 282 PDS TOR/42 PDS SEV

By Decade:

2000-2009: 206 PDS TOR/27 PDS SEV
2010-2019: 64 PDS TOR/11 PDS SEV

Most PDS Tornado Watches issued in a month: 34 in May 2003
2nd most PDS Tornado Watches issued in a month: 12 in April 2011
Most PDS Tornado Watches issued in one day: 9 on May 30th, 2004
Click to expand...
What happened in 2003? That's almost double any other yeat listed?
 
Tomcats Forever! said:
What happened in 2003? That's almost double any other yeat list
Click to expand...
As @CheeselandSkies just posted, May 2003 happened. That month accounted for the bulk of the PDS Tornado Watches for the entire year of 2003. I was surprised by just how active that May was when I was going back through the SPC archive.
 
Here's May 2003 PDS TOR Watches
 

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KevinH said:
Interesting that the number of PDS TOR watches dropped off after… you know… 2011.

I wonder why that could be? Did the SPC change the criteria for PDS WWs around that time or….???
Click to expand...

No. It just got a whole lot quieter LOL!
 
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