Came across a weather office (3)

I believe the answer is:

met

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'came across' is the definition.
(to come across is to meet or encounter)

I don't understand the rest of the clue.

(Other definitions for met that I've seen before include "Encountered or touched" , "Encountered by chance or arrangement" , "Made a connection" , "Encountered, came into contact" , "London police (abbr) - New York Museum of Art (abbr)" .)

I've seen this clue in The Times.

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