Tophat logo

Weather Condition Definitions

Overview
TopHat in Antarctica
Links

Condition THREE - anything that is better than Condition TWO.

Condition 3

*** Condition THREE means normal, good weather! ***

   

Condition TWO - any one of the following is true:

Condition 2
  • Wind speed between 48 and 55 knots.

  • Visibility better than 100 feet but less than 1/4 mile.

  • Wind-chill between -70F and -100F

   

Condition ONE - any one of the following is true:

Condition 1
  • Wind speed greater than 55 knots.

  • Visibility less than 100 feet.

  • Wind-chill worse than -100F

[MAIN PAGE] [BROCHURE] [HISTORY] [TUTORIAL] [NEW TECHNOLOGY] [IMAGES] [BIBLIOGRAPHY] [DATA] [EMPLOYMENT] [DIRECTORY] [CONTACTS] [GUESTBOOK]