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NOAA
Noaa: Build Your Own Weather Station [Pdf]
Build six different instruments to collect meteorological data for the weather in your area.
NOAA
Noaa: Ncdc: Hurricane Katrina Information [Pdf]
Lots of information about the causes of Hurricane Katrina from a meteorology point of view is shared, as well as the data from the Hurricane and the impact the Hurricane had on the cities and towns that were affected.