loading...| Preferred Name |
blizzard |
|
| Synonyms |
buran boulbie purga |
|
| Definitions |
A blizzard is a severe snowstorm during which snowfall is transported by strong winds, sustained for several hours. To qualify a snowstorm as a blizzard, some sources require the windspeed to be at least 56 km/h and the duration of the storm to be at least three hours. We set no such hard boundaries in this definition, as this should be done with reference to local standards. The U.S. National Weather Service specifies sustained wind or frequent gusts of 16 m per second (30 kt or 35 mi per hour) or greater, accompanied by falling and/or blowing snow, frequently reducing visibility to less than 400 m (0.25 mi or 0.4 km) for 3 hours or longer. Earlier definitions also included a condition of low temperatures, on the order of -7C (20F) or lower, or -12C (10F) or lower (severe blizzard). The name originated in the United States but it is also used in other countries. In the Antarctic the name is given to violent autumnal winds off the ice cap. In southeastern France, the cold north wind with snow is termed blizzard (see also boulbie). Similar storms in Russian Asia are the buran and purga. In popular usage in the United States and in England, the term is often used for any heavy snowstorm accompanied by strong winds. |
|
| ID |
http://purl.obolibrary.org/obo/ENVO_01000903 |
|
| comment |
To qualify a snowstorm as a blizzard, some sources require the windspeed to be at least 56 km/h and the duration of the storm to be at least three hours. We set no such hard boundaries in this definition, as this should be done with reference to local standards. The U.S. National Weather Service specifies sustained wind or frequent gusts of 16 m per second (30 kt or 35 mi per hour) or greater, accompanied by falling and/or blowing snow, frequently reducing visibility to less than 400 m (0.25 mi or 0.4 km) for 3 hours or longer. Earlier definitions also included a condition of low temperatures, on the order of -7C (20F) or lower, or -12C (10F) or lower (severe blizzard). The name originated in the United States but it is also used in other countries. In the Antarctic the name is given to violent autumnal winds off the ice cap. In southeastern France, the cold north wind with snow is termed blizzard (see also boulbie). Similar storms in Russian Asia are the buran and purga. In popular usage in the United States and in England, the term is often used for any heavy snowstorm accompanied by strong winds. |
|
| database_cross_reference | ||
| definition |
A blizzard is a severe snowstorm during which snowfall is transported by strong winds, sustained for several hours. |
|
| has part | ||
| has_narrow_synonym |
buran boulbie purga |
|
| in_subset |
environmental_hazards envoAtmo envoCryo envoPolar |
|
| label |
blizzard |
|
| overlaps | ||
| prefixIRI |
ENVO:01000903 |
|
| prefLabel |
blizzard |
|
| subClassOf |