http://www.thunderbolts.info/forum/phpBB3/viewtopic.php?f=10&t=16329&start=360#p123034

The sheath of a tornado is a form of surface tension. It is a plasma of spinning, churning H2O molecules. It has structural strength and a surface—common characteristics of plasmas. But the origin of this strength doesn’t involve the forces associated with ionic bonds, as is the case with most plasmas. Instead this is a kind of plasma that involves the forces associated with hydrogen bonds. I thought of it as surface tension that is expressed in three dimensions—surface tension on steroids!

 conjectured that hydrogen bonds must be distinctive from covalent or ionic bonds in that with hydrogen bonds the force that creates the bond must be deactivated by the bond itself. And so, whereas with a covalent bond or an ionic bond the force that brings them together remains, with hydrogen bonds the force that brings them together is deactivated--neutralized. Accordingly, the fewer bonds that an H2O molecule shares with other H2O molecules the stronger are these bonds. Conversely, the greater were the number of bonds an H2O molecule shared with other H2O molecules the weaker were these bonds—all the way down to having zero strength when fully bonded.