The fact that a small to moderate tornado outbreak occurred shows that there clearly was a risk. The Outlooks issued by the Storm Prediction Center reflected that possibility.
Moore, Oklahoma has been struck by a number of significant tornadoes. The two most well-known and most destructive were an F5 on May 3, 1999 and an EF5 on May 20, 2013. Moore was also hit by an F3 tornado on November 19, 1973 and an F4 tornado on May 8, 2003. The last tornado to hit Moore was an EF2 on March 25, 2015.
As with all weather forecasts, there is always some uncertainty in severe weather outlooks. In the case of the storms that occurred in late May 2016, conditions favored supercells with strong rotation more than was expected. Forecasts are based heavily on computerized models, which are imperfect but are often tweaked and improved.
There were at least 59 tornadoes on Oklahoma on May 3, 1999, with more tornadoes affecting other states.
Such an outlook is categoriezed as a slight risk. Tornado activty in such an instance can vary quite a bit as such outlooks come with a high degree of uncertainty. To a large degree what is likely to happen depends on the area covered. Such outlooks often indicate a few tornadoes, some of which may be strong, can occur, especially if there is a hatched area included. In some cases a moderate tornado outbreak may occur. Sometimes there is potential for one or two violent tornadoes. Again, though, as there is a high degree of undertainy in many cases, sometimes the forecast tornadoes fail to develop.
It is possible that a high-risk outlook will be issued. The SPC has issued a moderate-risk area on that date in their day 3 outlook, which is unusual.
The Enigma tornado outbreak occurred on May 23-25, 2008 and produced over 235 tornadoes across the central United States. The outbreak lasted for approximately three days before dissipating.
The last time a tornado hit Oklahoma City was on May 6, 2015, as part of a severe weather outbreak in the region. The tornado caused damage in various parts of the city but no fatalities were reported.
The Plains tornado outbreak happened. It was a tornado that had a duration of 3 days. The May 1957 Central Plains tornado outbreak was a tornado outbreak that took place across the US Central Plains from May 19 to May 21, 1957. The F5 tornado that was included in this outbreak and the most significant, is often called the Ruskin Heights Tornado according to people in the Kansas City area as the worst of the damage occurred in the Ruskin Heights area, a suburb and housing development south of Kansas City. Fifty-seven tornadoes were reported from Colorado to the Mississippi Valley and 59 people were killed during the outbreak including 44 from the Ruskin Heights tornado.
The most recent tornado in the world is the outbreak (so far) is in the USA in most of May.
This time of year it is always possible that there could be another tornado outbreak. At this point, the Storm Prediction Center is mentioning the potential for many tornadoes, some of which may be strong. This suggest farily strong potential for a tornado outbreak.
The largest tornado outbreak to impact Oklahoma was the outbreak of May 3, 1999. On this day Oklahoma was hit by 58 tornadoes, including an extremely destructive F5 that moved through the Oklahoma City area.
As of May 13, 2015 the last tornado to hit Texas this month was the second of two EF0 tornadoes near Jefferson on the night of May 10. It was at least four tornadoes to hit Texas on that day. This will likely not be the last tornado to hit Texas in May 2015.
That depends on which tornado record you are referring to. Here are a few records:Largest tornado: the El Reno, Oklahoma tornado of May 31, 2013 (2.6 miles wide)Longest lived tornado: the Tri-State tornado of March 18, 1925 (3 hours, 29 minutes)Longest damage path: the Tri-State tornado of March 18, 1925 (219 miles)Costliest tornado: the Joplin, Missouri tornado of May 22, 2011 ($2.8 billion)Deadliest tornado: The Daulatpur-Saturia, Bangladesh tornado of April 26, 1989 (1,300 dead)Fastest winds: the Oklahoma City tornado of May 3, 1999 (302 mph)Largest tornado outbreak: the Super Outbreak April 25-28, 2011 (351 tornadoes)Costliest tornado outbreak: the Super Outbreak April 25-28, 2011 (~ $5 billion)Most tornadoes in 24 hours: April 27, 2011 (208 tornadoes)Most violent tornadoes in an outbreak: the Super Outbreak of April 3-4, 1974 (24 F4, 6 F5)
As of February 13, 2015 the last recorded EF5 tornado struck Moore, Oklahoma on May 20, 2013.
If the tornado causes major damage or is part of a major outbreak the government may provide relief funding. FEMA and the National Guard may bring in supplies and temporary housing.
Forest Park was hit by an F2 tornado on May 8, 1978 and an F0 tornado on January 19, 2001.
As of May 2, 2015 the last tornado in Wichita was an EF3 on April 14, 2012. Additionally, an EF2 on May 19, 2013 an EF2 tornado dissipated just before it would have entered Wichita.