Thomas Grazulis

THIS BOOK IS NOT READY, YET, but note the line after the dates...." WITH 2023-2026+ UPDATE". The update will go to the mid-April 2027 completion date of the new volume, and be included as part of the bigger book. Thank you for your patience.

The tornado season looks a lot like 2014, so far.

56

OIS MAJOR MISTAKE at the bottom of page 655. F2 F3 F4 F5 x2 x5 x10 x15 Mistake: 5-21-1962 1 3 0 0 OIS 2 15 0 0 17 WHAT? NOT 17! Correction: 5-21-1962 4 4 2 0 OIS 8 20 20 0 48 YES 48!

Minor ERROR in SIGTOR 1974-2022....MY BAD...page 530, the caption to figure 510. Hardeman County is in TEXAS ..not Oklahoma. There is a MAJOR error in the book. I'll need more space next Wednesday to deal with that. See tornadoproject.com to order book..654 figures.

No OIS message today...bulldozer is in the river moving rocks to reinforce the foundation of the bridge...which we almost lost...big flood last year, to the day. If you have the BLUE book 1974-2022, you could search for the MAJOR mistake..next Wed I'll let you know where it is.

EF2 EF3 EF4 EF5 13 2 0 0 26 10 0 0 OIS=36 OIS= 36 ? NO, that’s not for one day, that’s the ENTIRE MONTH OF JUNE, 2025. 11 years in a row with no MAJOR OIS outbreaks in June .. all-time record (back to 1873). More next Wed.

ROBERT J. MILLER’S first (by anyone, ever) tornado forecast hit Tinker AFB on 3/25/1948 (OIS-72). 100y from the 3/20/1948 hit. 14 people were killed in Oklahoma (near F5 with gruesome deaths). 20k in Indiana. Next Wednesday: plans for a full color SIGTOR UPDATE 2023-2026.

Robert J. Miller dropped out of college and joined the Army Air Force in 1942. In 1948, at Tinker AFB, he was part of the most incredible (supernatural) meteorological coincidences of all time (IMHO). Still waiting for a MAJOR JUNE OIS outbreak. NEXT WED details on 3/25-27/1948

I adjusted the OIS criteria by starting at “25" points instead of 30 for MAJOR outbreaks. This added 43 new outbreaks, and brought the total for 1873-1949 to over 210. WW-II saw many of new weather officers in the military, improving tornado documentation. More next Wednesday. Joining up in 1942 was an excellent college physics student. He was to change the direction of tornado forecasting.

There hasn’t been a MAJOR OIS outbreak in June since Pilger, NE in 2014. That’s probably an all-time record low going back to 1873, the start of official documentation. I have identified about 215 OIS MAJOR outbreaks from 1873 from 1949. How? More next Wednesday.

EF2 EF3 EF4 EF5 x2 x5 x10 x15 May 18, 2025 (Revised up from OIS=34) 9 8 0 0 18 40 0 0 OIS=58 June could be a record breaking month, if it has no MAJOR OIS outbreaks. More on this next Wednesday.

I was too quick to post. Could be that staff cuts are delaying surveys. Will re-post OIS lists next Wednesday. Last outbreak will get a boost of at least 20 OIS points.

May 2025 MAJOR outbreaks EF2 EF3 EF4 EF5 x2 x5 x10 x15 May 16, 2025 7 3 2 0 14 15 20 0 OIS=49 May 18, 2025 7 4 0 0 14 20 0 0 OIS=34

I am still waiting for GLOBAL WARMING/CLIMATE CHANGE to make up it’s mind on OIS MAJOR tornado outbreaks in May. By next Wednesday the picture might be much clearer,

Looking beyond the national media HYPE about so much damage done by tornadoes in late April, I am waiting for the OIS outbreak in May, or is global warming going to take its eventual toll on chasers. What if a MAJOR outbreak was set at OIS 25.

Go to my home page to see the rest of the list. Thomas Grazulis @sigtor2019

Go to my home page to see the rest of the post.

Top 12 OIS, 1873-1949 EF2 EF3 EF4 EF5 x2 x5 x10 x15 May 25-28, 1917 OIS 30 50 100 15 195 100 dead in a tornado family across central IL May 8, 1927 OIS 36 40 9 15 171 83 dead across Polar Bluff, MO 21 died in a single hotel May 20-21, 1949 OIS 56 65 30 0 151 13 killer tornadoes with 23 fatalities at Cape Girardeau, MO March 28, 1920 OIS 30 40 80 0 150 20 different killer tornadoes (kt) with 3 having 20+ deaths March 16, 1942 OIS 14 55 60 15 144 18 different kt with 63 fatalities in MS May 30-June 1, 1917 OIS 32 45 50 0 137 Same week as top outbreak February 19, 1884 OIS 48 55 40 0 133 27 kt in AL, GA, SC, NC March 21, 1932 OIS 20 40 70 0 130 30+ deaths in 5 different kt in AL May 5-6, 1930 OIS 34 25 70 0 129 22 recorded dead in Frost, TX with 50+ still hospitalized April 24, 1908 OIS 38 20 50 15 123 55 fatalities at Purvis, MS April 29, 1909 OIS 46 35 40 0 121 29 dead in each of 2 kt in MS and TN. April 27, 1912 OIS 12 25 80 0 117 27 fatalities, mostly in OK May 18, 1883 OIS 14 40 60 0 114 16 kt, mostly in IL and WI Actual OIS totals are larger for each one. Actual (true) totals will probably NEVER be known.

2025 MAJOR outbreaks EF2 EF3 EF4 EF5 March 14-15, 2025 31 11 3 0 OIS 62 55 30 0 147 April 2-3, 2025 22 6 0 0 OIS 44 30 0 0 74 NEXT WEDNESDAY: OUTBREAKS 1873-1949 INTRODUCTORY VERSION- NOT ON WIKI