# Windspeed symbols

Wind is indicated in increments of 5 knots (kts), with the outer end of the symbol pointing toward the direction from which the wind is blowing. The wind speed is determined by adding up the total of flags, lines, and half-lines, each of which have the following individual values:

Flag: 50 kts

Line: 10 kts

Half-Line: 5 kts

A knot is a speed of 1,852 km / h.

Example:

Means 25 kts from the West |

Symbols |
Knots (kts), km/u) |

0 kts, 0 km/u | |

5 kts, 9 km/u | |

10 kts, 19 km/u | |

15 kts, 28 km/u | |

20 kts, 37 km/u | |

25 kts, 46 km/u | |

30 kts, 56 km/u | |

35 kts, 65 km/u | |

40 kts, 74 km/u | |

45 kts, 83 km/u | |

50 kts, 93 km/u | |

55 kts, 102 km/u | |

60 kts, 111 km/u | |

65 kts, 120 km/u | |

100 kts, 185 km/u | |

105 kts, 194 km/u | |

The wind symbol points to the direction the wind is coming from and the wind blows from the flag to the symbol for the clouds (which is located at the location of the weather station). The knot is a unit of speed that is widely used in shipping and in motorized aviation. A knot is one nautical mile per hour. A nautical mile is defined as exactly 1852 meters. A knot is thus a speed of 1,852 km / h. Since a knot is already a speed (traveled distance per unit of time), it is wrong to speak of ‘knots per hour’. In aviation, English is the official language and one speaks of knot (s) (pronounced as nott (s)). |