NOAA scientists observe severe weather using a mobile doppler radar and a helicopter (in the distance)

Severe weather phenomena are weather conditions that are hazardous. Download high resolution version (768x1024, 96 KB) File links The following pages link to this file: Severe weather User talk:EI C Categories: National Oceanic and Atmospheric Administration images ... Download high resolution version (768x1024, 96 KB) File links The following pages link to this file: Severe weather User talk:EI C Categories: National Oceanic and Atmospheric Administration images ... The National Oceanic and Atmospheric Administration (NOAA) is a scientific agency of the United States Department of Commerce focused on the conditions of the oceans and the atmosphere. ... It has been suggested that Pulse-Doppler radar be merged into this article or section. ... Robinson Helicopter Company (USA) R44, a four seat development of the R22 A helicopter is an aircraft which is lifted and propelled by one or more horizontal rotors, each having two or more rotor blades. ... Weather is a term that encompasses phenomena in the atmosphere of a planet. ...

Examples Include:

• Cyclone (generic)
  • Arctic cyclone
• Derecho
• Fog
• Heat wave
• Cold wave
• Polar low
• Thunderstorm (hailstorm, microburst)
  • Supercell
• Tornado (also colloquially referred to as a "whirlwind" or "twister")
  • Waterspout
• Tropical cyclone (also called a hurricane, typhoon, or "cyclone")
• Windstorm (gradient pressure induced)
  • European windstorms
• Winter storm
  • Blizzard, Ice storm

Radar image of a tropical cyclone in the northern hemisphere. ... Arctic cyclones are vast areas of low pressure. ... A derecho is a widespread and long-lived, violent convectively induced windstorm that is associated with a fast-moving band of severe thunderstorms usually taking the form of a bow echo. ... Evening fog obscures Londons Tower Bridge from passers by. ... This article does not cite its references or sources. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Polar lows are similar in behavior and size to tropical cyclones, although generally much shorter lived. ... A shelf cloud associated with a heavy or severe thunderstorm over Enschede, The Netherlands. ... Hailstorm A hailstorm is a meteorological event, being a storm in which a large amount of hail falls. ... A photograph of the surface curl soon after an intense microburst impacted the surface A microburst is a very localized column of sinking air, producing damaging divergent and straight-line winds at the surface that are similar to but distinguishable from tornadoes which generally have convergent damage. ... Satellite view of a supercell A supercell is a severe thunderstorm with a deep rotating updraft (a mesocyclone) [1]. Supercell thunderstorms are the largest, most severe class of single-cell thunderstorms. ... A tornado in central Oklahoma. ... Waterspouts on the beach of Kijkduin near The Hague , the Netherlands on 2006 August 27. ... Cyclone Catarina, a rare South Atlantic tropical cyclone viewed from the International Space Station on March 26, 2004 Hurricane and Typhoon redirect here. ... A windstorm is a severe weather condition indicated by high winds. ... A European windstorm is a severe cyclonic storm that tracks across the North Atlantic towards northwestern Europe in the winter months. ... A typical view of a winter storm. ... Look up Blizzard in Wiktionary, the free dictionary. ... Ice storm could refer to: A type of winter storm characterized by freezing rain. ...

Phenomena caused by severe weather include:

• Avalanche
• Drought
• Dust storm, haboob
• Landslide, mudslide
• Flood, flash flood
• Wildfire, firestorm

A Himalayan avalanche. ... A drought is a period of time when there is not enough water to support agricultural, urban or environmental water needs. ... This article or section needs to be wikified. ... A haboob is a type of intense dust storm characteristic of very dry regions. ... Landslide of soil and regolith in Pakistan A landslide is a geological phenomenon which includes a wide range of ground movement, such as rock falls, deep failure of slopes and shallow debris flows. ... Mudslide in La Conchita, California A mudslide is a landslide of mud. ... Look up flood in Wiktionary, the free dictionary. ... Lower Antelope Canyon was carved out of sandstone over millions of years by flash floods A flash flood is a rapid flooding of low-lying areas, rivers and streams, that is caused by the intense rainfall associated with a thunderstorm, or multiple training thunderstorms. ... {{alternateuses}} The Old Fire burning in the San Bernardino Mountains (image taken from the International Space Station) A wildfire, also known as a forest fire, vegetation fire, grass fire, brush fire, peat fire (gambut in Indonesia), bushfire (in Australasia), or hill fire, is an uncontrolled fire often occurring in wildland... A firestorm in Hamburg (Germany) during WWII A firestorm is the mass movement of air resulting from fire, creating a fire of extreme intensity over a wide area. ...

See also

• Extreme weather
• Meteorology
• Severe weather terminology (United States)
• Space weather

To meet Wikipedias quality standards, this article or section may require cleanup. ... Satellite image of Hurricane Hugo with a polar low visible at the top of the image. ... A NOAA national weather map This article describes severe weather terminology used by the U.S. National Weather Service. ... Aurora australis observed by Discovery, May 1991 Space weather is the concept of changing environmental conditions in outer space. ...

External links

• StormWiki
• Severe Weather UK