[Diddle E. Squat]

One thing the article does not point out is that the prevailing wind in this part of Texas most of the time is out of the west, south or north and would keep most of a gas release in less populated areas.We do get the occasional east or south easterly breezes but not all that often.

Wrong.

Houston... Prevailing winds are from the southeast and south, except in January, when frequent passages of high pressure areas bring invasions of polar air and prevailing northerly winds.

[eastforker]

More from the south and south south east and that would not carry a gas cloud into downtown Houston. I know, I work outside in a chem plant and monitor the wind socks all day long and very rarely do we get a wind that would carry a cloud downtown. These same meteorologist are the same ones that tell you the sun is shining when you are running for your raincoat.