Tim, as you would probably agree, you would have to be very keen to go for a drive given the distances involved.
LAPS looks very hot and dry over SA for the most part, and given that GFS performance has been the worst I have ever seen it this year, especially regarding boundary layer moisture, I would expect that to be the case. Both models develop surface low pressure in WA through weds, but 12z GFS progs an elongated low thurs with a reasonably impressive isallobaric response with deep and solid NNE infeed, around 20 knots, and moisture advection contributing up to and around 2000j/kg convective energy during the late morning (of course GFS is most probably pulling those numbers out of its backside).
With LAps moisture basically does not get in to SA except western border. Whatever model you choose, through the afternoon though, intense heating and mixing come into play and makes the situation worsen.
I think there will be some interesting storms around, and it is worth watching. Incidentally, going by mesolaps just now, the best chance for tornadoes would be in the strongly backed flow near the coast around Eucla, or thereabouts. The LAPS shear profiles progged for that area are very impressive during the morning and afternoon, although moist sfc parcels have a cool marine origin.
Still looking ok for further east across NSW at this stage for Thursday and Friday.
