Gaia
1st July 2011, 00:15
When a TV meteorologist says "Temperatures will be ten degrees above normal" The word "Normal" Has a specific meaning. Every 10 years NOAA re-calculates the "Normal" temps for the USA based on the prior 30-year averages. The new normals have just been released, based on the 30 year period 1980-2010. Hotter is the new normal. With hotter weather comes more extreme weather. They have a climate tab which demonstrates this trend quite starkly. If you've never used weatherspark, I can't recommend it enough (Though it is flash-only) Makes all the other weather sites look like relics from another era.
Gaia
http://weatherspark.com/climatetrends
http://www.ncdc.noaa.gov/oa/climate/normals/newnormals.html
Gaia
http://weatherspark.com/climatetrends
http://www.ncdc.noaa.gov/oa/climate/normals/newnormals.html