http://www.fpsguru.com/game/284/feat...t-SyndCon.html
"There will be a dynamic weather system that can affect warfare. Intense firefights causing a lot of smoke can affect the weather and they also spoke of volumetric clouds that can mask vehicles.
That may not be in at launch, but is definitely in the long term plan."
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http://www.reddit.com/r/Planetside/c..._the_creative/
"We've got a really cool weather system design,
I'm hoping we can squeeze it in for launch. Gameplay affecting things like volumetric fog/clouds shouldn't be able to be toggled."
...And I didn't even say they 'said or mentioned' that. Plz don't get me wrong here guys, will ya?