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You can find many ham-related resources and groups on the internet.
Here are some we especially recommend:

National EmComm (Emergency Communications)
Regional/State/County EmComm
Local Area Clubs
Educational Sites on Various Topics

Amateur Radio Operators — especially ARES members —are encouraged to train in weather spotting:

Speaking of weather, SPACE weather is of particular interest due to its affect on wireless communications (and more):

As the ARES group does digital radio comms with FLDIGI and WinLink:

Other Reference