Ice storm


Ice storm

An ice storm is a type of winter storm characterized by freezing rain.

Ice storms happen when a warm cloud rains above a layer of colder air. This lowers the temperature of the droplets to below zero, however it remains in liquid form. The supercooleddroplets freeze into ice on impact when they fall onto a surface the temperature of which is close to, or below, freezing.

This freezing rain covers everything with heavy, smooth glaze ice. Ice-covered roads become slippery and dangerous. Driving becomes extremely hazardous as the ice causes all types of vehicles to skid out of control, which can cause devastating car crashes as well as pile ups. Even pedestrians are severely affected as sidewalks become slippery, which can cause people to slip and fall and outside stairs can become an extreme injury hazard.

In addition to hazardous driving or walking conditions, branches or even whole trees may break from the weight of ice. Falling branches can block roads, tear down power and telephone lines and cause other damage. Even without overhead tree branches, the weight of the ice itself can snap power lines, and power poles as well (even the big steel frame electrical pylons have crumbled under the weight of ice before). This can leave people without power for as long as several days to even weeks. According to most meteorologists, just one quarter of an inch of ice accumulation can add about 500 pounds of weight per line span. Damage from ice storms is highly capable of shutting down entire metropolitan areas.

Notable ice storms

An example of an ice storm is the North American ice storm, which occurred from January 5-9, 1998. One of the worst ice storms in Canadian history, it caused massive power failures in several large cities in the eastern provinces. Whole trees snapped and electrical pylons were completely flattened under the weight of the accumulated ice.

ee also

*2005 Atlantic Power Outage
*List of ice storms
*Power outage

External links

* [http://snrs.unl.edu/amet451/bartlett/icestorm.htm What causes Ice Storms?]


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Ice storm — (The Ice Storm) est un film américain réalisé par Ang Lee, sorti le 26 septembre 1997. Sommaire 1 Synopsis 2 Fiche technique 3 Distribution 4 …   Wikipédia en Français

  • Ice Storm — (The Ice Storm) est un film américain réalisé par Ang Lee, sorti le 26 septembre 1997. Il s agit de l adaptation au cinéma du roman Tempête de glace de Rick Moody par en 1994. Sommaire 1 Synopsis 2 Fiche technique …   Wikipédia en Français

  • ice storm — ice′ storm n. mer a storm of freezing rain • Etymology: 1875–80 …   From formal English to slang

  • ice storm — ☆ ice storm n. a storm in which freezing rain falls and forms a glaze on surfaces …   English World dictionary

  • ice storm — noun a storm with freezing rain that leaves everything glazed with ice • Syn: ↑silver storm • Hypernyms: ↑storm, ↑violent storm * * * noun : a storm in which falling rain freezes as soon as it touches any object * * * a storm of freezing rain and …   Useful english dictionary

  • ice storm — noun A storm in which rain freezes on contact with the ground to form a sheet of ice. Syn: silver storm …   Wiktionary

  • ice storm — noun Date: 1876 a storm in which falling rain freezes on contact …   New Collegiate Dictionary

  • ice storm — a storm of freezing rain and widespread glaze formation. [1875 80] * * * …   Universalium

  • Ice storm warning — An Ice Storm Warning is issued by the National Weather Service of the United States when freezing rain produces a significant and possibly damaging accumulation of ice. The criteria for this warning vary from state to state, but typically an ice… …   Wikipedia

  • Ice storm of December 2005 — The Ice storm of December 2005 was a damaging winter storm that produced extensive ice damage in a large portion of the Southern United States on December 14 16, 2005 while extensive snows were reported across portions of the Canadian provinces… …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.