Mike Adams wrote:
(sniP)
Thursday we dried everything out,
re-staked the tent, added some additional guy lines and it rained all Thursday
night but no problems.

AHA! There you have it! Read any backpacking magazine, and they will
tell you to add additional guys to the fly at a distance (not in close)
to withstand heavy winds. The distance from the side of the tent creates
a lower angle on the guy, giving the stake more holding power (surface
area) against the force.