I took off at 1430 ish.
The planned departure from 26L involved a right turn a couple of mile off the end of the runway onto reciprocal track (LAM 4M SID).
There was a v big CB sitting right on the turning point, drifting very slowly ESE.
So we, and many others, were offered alternative routing via a left turn after take off (TIGER SID).
No big deal.................just airmanship