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View Diary: Free-Market Conservatism Kills-Oklahoma Buildings Don't Have Safe Rooms Because "Regulation Rankles" (220 comments)

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  •  I'm willing to believe you. (0+ / 0-)

    Could you provide a link for this info?

    "I'm gonna dance between the raindrops"

    by IB JOHN on Wed May 22, 2013 at 09:44:46 AM PDT

    [ Parent ]

    •  Here ya go. (3+ / 0-)
      Recommended by:
      jfromga, cassandracarolina, pistolSO


      This is classic F5 damage. The Bridge Creek/Moore, Oklahoma, tornado of 3 May 1999 leveled this house, swept the foundation almost completely clean, shredded the house remains into small pieces and scattered the debris downwind to the northeast (rear). The house was relatively well-contructed with slab-to-wall anchor bolts evenly spaced around the bottom plate. Some of those bolts can be seen in this photo, protruding upward from just inside the edges of the concrete slab.
      From NOAA.

      "You can never sink so low in life that you can't be a bad example for somebody." - my dad

      by briefer on Wed May 22, 2013 at 10:06:36 AM PDT

      [ Parent ]

    •  Thanks Briefer. (0+ / 0-)

      But my question was to the parent comment from jfromga. I was replying to his comment. I was hoping for a link regarding the actual definition of an F5 including concrete slab destruction.

      "I'm gonna dance between the raindrops"

      by IB JOHN on Wed May 22, 2013 at 10:32:41 AM PDT

      [ Parent ]

    •  I got it a little backwards (2+ / 0-)
      Recommended by:
      Ian Reifowitz, drmah

      I have slept since I read it, foundations are swept clean, and asphalt has been scoured from parking lots,  not quite as bad, but worse than I ever want to be in:

      I think the scale descrpitions were repeated in one of weatherdudes diaries.

      The long and the short of it, in an F5, no above ground structure tends to remain in place for a residence,  and even if you follow the links to particular tornadoes, even much heavier steel frame construction, etc., doesn't survive.  The photo examples of damage given in the Fujita scale articles show merely randomly piled debris for the F5.

      These storms are rare though, a few that are provable as F5, but I guess Moore must be right in the center of the most favorable conditions for their formation to be hit by two of them.

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