Moore Oklahoma Tornado Rated EF5

May 21st, 2013 at 4:13 pm by under Bill's Blog, News, Weather

kfor hail    The Moore OklahoMoore tornado radarma tornado has been upgraded to a low end EF5 with peak winds of 200-210 mph.  Here’s the summary statement from the NWS in Norman.  The statement says:  “This information remains preliminary and the information here could change.”  The tornado was on the ground for 50 minutes and traveled 17 miles.  The maximum width was 1.3 miles.  KFOR picture gallery.   Picture of enormous hail that accompanied the storm from KFOR and radar image at the point it was at or near EF5.  Here’s more excellent pictures and video.  Here’s the 10 deadliest tornadoes in U.S. historyAerial pictures of the tornado damage.   More tornado and damage picturesMore incredible damage pictures.   Check out our special on the Hudsonville-Standale Tornado, the only F5/EF5 tornado ever to hit West Michigan.

18 Responses to “Moore Oklahoma Tornado Rated EF5”

  1. Mark (East Lansing) says:

    Nice pic. Hey Bobby, put your helmet on and get me one of them hailstones before it melts.

  2. Tonda Corbett says:

    just like the movie Twister with Helen Hunt, in the movie it was an F5, poor people, my heart and prayers go out to them… movies are eerie, almost telling our future.

  3. Dan says:

    Doesn’t suprise me that they finally determined this Tornado that hit Moore, Oklahoms to be an EF5!
    Did you see the damage? From what I understand, they still have several people that have not been accounted for. It sounds like that entire area is complete ruins.

  4. Dan says:

    * Oklahoma

  5. John (Holland) says:

    As an aside, why do reporters STILL use the (old) Fujita Scale nomenclature, such as “F5″, instead of “EF5″? Are they blind to the letter “E” or what?

  6. Nathan says:

    Quick question, how does an RFD form? I know it is a midlevel wind that wraps about 2/3rds around the tornado itself and moves toward the ground… But what triggers the RFD to actually come together and form?

    1. Cort S. says:

      Oh man, a simple question with a complicated answer. Keep in mind that the research community is still running very high-resolution computer models on supercomputer clusters to simulate individual supercells, in order to understand them better.

      That article is a little too technical (the picture is helpful though), but here is a simple answer: Dry mid-level air blows into the backside of the supercell. Since the air is dry, rain and hail falling through it can evaporate, which cools the air down, causing the air to become unstable in a downward way (the opposite of warm air being unstable in an upwards way). The air gets wrapped around because of its proximity to the rotating updraft, and it descends to the ground by the time it gets wrapped around to the rear of the storm.

  7. INDY says:

    Yesterdays Tornadoe Will go down as the BIGGEST AND BADDEST EVER!! Again thoughts with thee great state of Oklahoma…..INDYY..

    1. Cort S. says:

      Top 5 in certain categories, but it has competition from a number of other historic tornadoes… unfortunately.

  8. Holly says:

    An emergency room doctor who dealt with the aftermath of both EF5 tornadoes in Moore commented that there were far fewer head injuries this time around and wondered why. Compared to 1999, many more people now own protective head gear such as bicycle helmets. I would expect that a lot of those bicycle helmets were donned before people went to their best available shelter locations. Until proper shelters are installed in all schools, perhaps schools could keep helmets available for each child to reduce the chances of serious head injuries when future tornado strikes occur.

    1. Cort S. says:

      Absolutely! Good point. This is something that is being talked about more and more when it comes to tornado safety. Many injuries come from blunt trauma, so if you have a helmet, that greatly helps you. Also, something else that we are realizing: wear your shoes when you are taking shelter. You don’t want to cut up your feet when you climb from the rubble and walk around to help others.

      1. Holly says:

        Shoes, excellent point. When I lived in California, I always knew exactly where my slip-on shoes were before I went to bed so I could quickly put them on if the earth started shaking during the night….

  9. Holly says:

    Has anybody heard how above ground tornado shelters that meet FEMA standards held up in Moore this time around? Are the tornado shelter experts at Texas Tech happy with the results?

  10. I’ve pulled together a list of resources for victims. If everyone could share or let me know of anything that needs to be added please let me know.

  11. Sorry if this link has already been posted, but I found this page by the NWS Norman Office to have a lot of neat information about the Tornado: and within that page, if you have Google Earth, a fascinating interactive map showing the Tornado path with clickable site reports:

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