Inquiring minds have asked so here is what Leon had to say...

1) Is using weapons in public considering a breach or the masquerade or is it just when you feed or use disciplines?

Using weapons in public (in a safe area) is a criminal act and will bring the police down on the player, but it's not a masquerade violation. Masquerade violations only occur when players display
vampiric powers or feed in view of normal humans.

2) What type of weather effects can we expect to see in this game?

Vampire: The Masquerade - Bloodlines has some really cool looking weather effects like wind and rain