01/11/11 54 W, 1 I - + 1 - 1 Orange Smoke?

You probably saw this footage from Philly on the national news yesterday. Five alarms at a 90-unit condominium building. What's the deal with the orange smoke? Trick of the late-day light? (It's called the golden hour for a reason.) Particular type of burning materials? Below photo from Firegeezer posting.

NBC photo

That smoke looks more brown to me which means that the interior wood structural members are burning
Mike - 01/11/11 - 13:59

Looks brown to me too with a strong beam of sunlight hitting the smoke column, making it appear orange.
Silver - 01/11/11 - 14:22

Late stage heating prior to ignition of unfinished wood, structural, like Mike said.
Jake T. - 01/12/11 - 00:06

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