All Atmospheric Hazards

World Meteorological Organization - Severe Weather Information Centre (world warnings)
severe.worldweather.org/index.html

Australia - Bureau of Meteorology - Weather and Warnings Information
www.bom.gov.au/weather/

Canada - Meteorological Service of Canada - Weather Warnings
www.weatheroffice.gc.ca/warnings/warnings_e.html

Europe - European Meteorological Services - MeteoAlarm
www.meteoalarm.eu/

Hong Kong - Hong Kong Observatory
www.hko.gov.hk/contente.htm

India - Meteorological Department - Severe Weather Warnings
www.imd.ernet.in/section/nhac/dynamic/severe.htm

Japan - Japan Meteorological Agency
www.jma.go.jp/en/warn/

US - National Weather Service
http://www.nws.noaa.gov/

US - Weather Underground Current Severe Weather
www.wunderground.com/severe.asp