Hey Noel,
Could have been related to the squall line that moved through here a few hours later on. Although it looked a bit less threatening in the radar image from around 1 pm shown below. Pays to avoid these like the plague. Glad you guys weren't caught out in it.
![](http://www.fksa.org/albums/album334/20080212_185729_black.sized.jpg)
X marks the spot