Weather & Climate Background

For journalists, decision makers, and the public

Understanding Climate Change & Global Warming

El Niño, La Niña, and ENSO

Hurricanes, Typhoons, and Cyclones

Nitrogen in the Earth System

Thunderstorm Glossary

Weather-Maker Patterns Glossary (From Arctic Oscillation to Pineapple Express)

Wildfires and Fire Weather

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Hazardous Weather Fact Sheets

Free registration is required to view these Fact Sheets from UCAR's MetEd on the most common hazardous weather events likely to occur in the United States were prepared for online and classroom training of community managers and emergency responders by UCAR's COMET Program.

Each fact sheet includes:

  • definition of the hazard event
  • common characteristics, including contributing factors, stages of development, types, and associated hazards
  • examples of related products provided by the National Weather Service, such as outlooks, watches, advisories, and warnings

Hazards addressed: coastal floods, dust storms, excessive cold or heat, extratropical cyclones, fire weather, flash or riverine floods, fog, thunderstorms, tornadoes, tropical cyclones, tsunamis, windstorms, winter storms

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Related Links

Learn more about our research on weatherclimate, and more (NCAR)

Weather & Climate Learning Zone for students and educators

Current U.S. Hazards Assessment (NOAA/NWS Climate Prediction Center)



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The University Corporation for Atmospheric Research manages the National Center for Atmospheric Research under sponsorship by the National Science Foundation. Any opinions, findings and conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.