Weerwoord | Oh ja

In het stukje dat je deze namiddag postte staat wel de term "snow storm": http://www.weerwoord.be/includes/forum_read.php?id=550355&tid=550321

Maar als we ff googlen komen we deze erntry in Wikipedia tegen:

Snowstorms

Snowstorms are storms where large amounts of snow fall. Snow is less dense than liquid water, by a factor of approximately 10 at temperatures slightly below freezing, and even more at much colder temperatures. Therefore, an amount of water that would produce 2 cm (0.8 in.) of rain could produce as much as 20 cm (8 in.) of snow. Five centimeters of snow (2 in.) is enough to create serious disruptions to traffic and school transport (because of the difficulty to drive and maneuver the school buses on slick roads). This is particularly true in places where snowfall is uncommon but heavy accumulating snowfalls can happen (e.g., Atlanta, Seattle, London, Memphis, Canberra). In places where snowfall is common, such as Buffalo, New York, Montreal, and Minneapolis, such small snowfalls are rarely disruptive, though snowfalls in excess of 15 cm (6 in.) usually rare.

A massive snowstorm with strong winds and other conditions meeting certain critera is known as a blizzard. A large number of heavy snowstorms, some of which were blizzards, occurred in the United States during the early and mid-1990s, and the 1993 "Superstorm" was manifest as a blizzard in most of the affected area.

Large snowstorms can be quite dangerous: a 15 cm (6 in.) snowstorm will make some unplowed roads impassable, and it is possible for automobiles to get stuck in the snow. Snowstorms exceeding 30 cm (12 in.) especially in southern or generally warm climates will cave the roofs of some homes and cause the loss of power. Standing dead trees can also be brought down by the weight of the snow, especially if it is wet or very dense. Even a few inches of dry snow can form drifts many feet high under windy conditions.

Bron: http://en.wikipedia.org/wiki/Snowstorm

Wat wij dus een sneeuwstorm noemen, noemen de amerikanenen eerder een blizzard*. En hevige sneeuwbuien of hevige sneeuwval noemen zij dan dus snow storm.

* Hoewel een blizzard ook nier oeft te betekeken da thet stormt:

Blizzard
(abbrev. BLZD)- A blizzard means that the following conditions are expected to prevail for a period of 3 hours or longer:

* Sustained wind or frequent gusts to 35 miles an hour or greater; and
* Considerable falling and/or blowing snow (i.e., reducing visibility frequently to less than 1/4 mile)

35 mph komt overeen met 7 Beaufort en 1/4 mile is ong 400m.