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.

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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 https://t.co/cd3uH1oBzx to order book..654 figures.

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.

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

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

Recent April outbreaks: (almost in March) 04/2-3/2025 EF2 EF3 EF4 EF5 18 6 0 0 x2 x5 x10 x15 36 30 0 0 OIS 66 MAJOR ! Next Wednesday....a slight alteration may be needed in the OIS calculation.

VERY SORRY. There was NOT an OIS outbreak in March, 5 years in a row, 2021-2025. My count of the March 14, 2024 outbreak was wrong. That one was a little short. So sorry to mislead you. Very ashamed and embarrassed.