Hi John and Capillatus,
Definitely microburst based on the fanned out pattern in the tree felling specifically in a few of the photographs. The path is also rather wide suddenly which indicates that it had to be a wedge touch down and lift.
John, microbursts have been known to exceed 170km/h. Even here in Australia, the January 21 1991 supercell that devastated the norther suburbs of Turrumurra and St Ives as well as the Kuringai National Park. The wind strengths were estimated to have varied between 180 to 230km/h although engineering estimates of toppled transmission power lines suggested based on the angle 180km/h wind strengths could have done such damage.
As to the embedded debris in walls, with such power winds, microbursts can also embed objects in walls. The wind strenths in this case are of the order of F2 damage - what was this damage rated at by the way?
As John suggested, the eddies created by micrubursts can give the appearance of rotation and it is not uncommon for tornadoes to be suspected in the case of severe microbursts not excluding the 21st January 1991 event referred to above.
Having said all this, one still cannot rule out brief tornadic spinups with this storm given the hook echo and pendant.
Regards,
Jimmy Deguara
