Weather Condition Classification
The weather in Antarctica can be highly variable, and the weather conditions can often change dramatically in short periods of time. There are three classifications for describing weather conditions in Antarctica. At least one of the following criteria must be met for each category.
- Condition 1
- Windspeed over 55 knots (60 miles per hour)
- Visibility less than 100 feet (30 meters)
- Wind chill below −100 °F (−73 °C)
- Description: Dangerous conditions; outside travel is not permitted.
- Condition 2
- Windspeed of 48 to 55 knots (55 to 63 miles per hour)
- Visibility 1/4 of a mile to 100 feet (402 to 30 meters)
- Wind chill of −75 °F (−60 °C) to −100 °F (−73 °C)
- Description: Unpleasant conditions; outside travel is permitted but not recommended.
- Condition 3
- Windspeed below 48 knots (55 miles per hour)
- Visibility greater than 1/4 of a mile (402 meters)
- Wind chill above −75 °F (−60 °C)
- Description: Pleasant conditions; all outside travel is permitted.
Read more about this topic: Climate Of Antarctica, Precipitation
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