Weather

Pittsburgh Region

• Accuweather: Pittsburgh
  Current weather, forecast, radar.

• National Weather Service Forecast Office: Pittsburgh
  Forecast for the Pittsburgh area.
• National Weather Service Climate for Pittsburgh
  This new site provided by the US Government offers historical climate data for the Pittsburgh area.
• National Weather Service Climate Report for Pittsburgh
  Look here for today's, yesterday's, and previous days' weather data, including maximum and minimum temperatures, precipitation, and snowfall.
• Weather Channel: Pittsburgh and Vicinity
  yesterday's weather, current weather, 10 day forecast, monthly averages, airport & flight delays, pollen count, interstate traffic, and more

Pennsylvania

• National Weather Service: Eastern Regional Headquarters
  The Northeastern US is broken up into several larger subregions. Besides Pittsburgh, Pennsylvania is covered by:
  • Cleveland Ohio
    For western and northwestern counties of PA
  • Philadelphia
  • State College PA

United States

• Earth Observatory
  The purpose of NASA's Earth Observatory is to provide a freely-accessible publication on the Internet where the public can obtain new satellite imagery and scientific information about our home planet, particularly its climate and environmental change.
• Earthweek: A Diary of the Planet
  Earthweek is a weekly syndicated newspaper feature that highlights natural phenomenon and man-made events affecting the environment during the current week. It is available online for printing out. There are also links to current news articles from around the world related to the environment.
• NOAA: National Oceanic and Atmospheric Administration
  
  • National Climatic Data Center
    NCDC archives 99 percent of all NOAA () data and also collects data from around the globe. The Center has more than 150 years of data on hand with 55 gigabytes of new information added each day--that is equivalent to 18 million pages a day.
    • Extreme Weather and Climatic Events
    • Paleoclimatology
      The study of past climates.
    • PhotoLibrary
      The NOAA collection includes thousands of weather and space images, hundreds of images of our shores and coastal seas, and thousands of marine species images ranging from the great whales to the most minute plankton.
  • Weather.gov
    This short URL will take you to the National Weather Service (NOAA).
    • Glossary
      This glossary contains information on more then 2000 terms, phrases and abbreviations used by the NWS. You can search or browse alphabetically.

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  International

  • The Cloud Appreciation Society
    This is a great site for anyone interested in photos of clouds and their various forms. It is a companion to The Cloudspotter's Guide: the science, history, and culture of clouds by Gavin Pretor-Pinney. (Additional books on clouds.)