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Know your winter weather terms





ATLANTA – Meteorologists from Team 2 from Team 2 urge residents to keep abreast of local predictions and warnings and become familiar with key climate terminology.

Winter Storm Warning: Issued when a dangerous winter weather in the form of heavy snow, heavy freezing rain or heavy sleet is imminent or is occurring. Winter storm warnings are usually issued 1

2 to 24 hours before the event begins.

Winter Storm Surveillance: Alerts the public about the possibility of a blizzard, heavy snow, heavy freezing rain or heavy snow. Winter storm watches are usually issued 12 to 48 hours before the start of a winter storm.

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Winter Storm Perspective: Published before a winter storm clock. The Outlook is given when forecasters believe that winter storm conditions are possible and are usually issued 3 to 5 days before a winter storm.

Blizzard Warning: Issued by sustained or gusty winds of 35 mph or more, and falling or blowing snow creating visibilities less than ¼ mile; These conditions must persist for at least three hours.

Lake Effect Snow Warning: Issued when the heavy lake effect is imminent or snow is occurring.

Lake Effect Snow Advisory: Issued when lake effect snow accumulates will cause significant inconvenience.

Wind chill warning: Issued when cooling temperatures are life-threatening within a few minutes of exposure.

Wind chill warning: Issued when cooling temperatures are expected to be a significant drawback to life with prolonged exposure and, if not exercised, could result in hazardous exposure.

Winter weather advisories: Issued for accumulations of snow, freezing rain, freezing drizzle and sleet that will cause significant inconvenience and, if not exercised with caution, could result in life-threatening situations.

Dense fog warning: Issued when fog will reduce visibility to ¼ mile or less over a large area.

Snow flurries: Light snow that falls during short periods. Accumulation or light powder is not expected.

Snowfall: Snow falling at different intensities for short periods of time. It can accumulate something.

Snow Squalls: Short, intense snowfalls accompanied by strong and gusty winds. The accumulation can be significant. Snow flurries are best known in the Great Lakes region.

Blowing snow: Snow driven by the wind that reduces visibility and causes significant drift. The snow that blows may be snow that is falling and / or loose snow on the ground picked up by the wind.

Sleet: Raindrops that freeze in ice pellets before reaching the ground. Sleet generally bounces when it hits a surface and does not adhere to objects. However, it can accumulate like snow and cause a danger to motorists.

Freezing rain: Rain falling on a surface with a temperature below freezing. This causes it to freeze on surfaces, such as trees, cars and roads, forming a coating or glaze of ice. Even small accumulations of ice can cause a significant danger.

Information from the Atlanta Journal-Constitution was used in this report.


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