Vindstyrke 0 - Calm

Indvirkning på jorden

Calm, smoke rises vertically

Havets tilstand

Sea surface smooth and mirror-like

Hastighed
  • 0-1 km/h
  • 0-0,54 noeuds (knot)
  • 0 - 0,621 mph
hauteur
  • 0 m
  • 0 ft
 Signe

Vindstyrke 1 - Light Air

Indvirkning på jorden

Smoke drift indicates wind direction, still wind vanes

Havets tilstand

Scaly ripples, no foam crests

Hastighed
  • 1-5 km/h
  • 0,54-2,7 noeuds (knot)
  • 0,621 - 3,11 mph
hauteur
  • 0 - 0,1 m
  • 0-1 ft
 Signe

Vindstyrke 2 - Light Breeze

Indvirkning på jorden

Wind felt on face, leaves rustle, vanes begin to move

Havets tilstand

Small wavelets, crests glassy, no breaking

Hastighed
  • 5-11 km/h
  • 2,7-5,9 noeuds (knot)
  • 3,11-6,84 mph
hauteur
  • 0,1 - 0,5 m
  • 1-2 ft
 Signe

Vindstyrke 3 - Gentle Breeze

Indvirkning på jorden

Leaves and small twigs constantly moving, light flags extended

Havets tilstand

Large wavelets, crests begin to break, scattered whitecaps

Hastighed
  • 11-19 km/h
  • 5.9-10,2 noeuds (knot)
  • 6,84-11,81 mph
hauteur
  • 0,5 - 1,25 m
  • 2-3,5 ft
 Signe

Vindstyrke 4 - Moderate Breeze

Indvirkning på jorden

Dust, leaves, and loose paper lifted, small tree branches move

Havets tilstand

Small waves. becoming longer, numerous whitecaps

Hastighed
  • 19-28 km/h
  • 10,2-15 noeuds (knot)
  • 11,81-17,4 mph
hauteur
  • 1-2 m
  • 3,5-6 ft
 Signe

Vindstyrke 5 - Fresh Breeze

Indvirkning på jorden

Small trees in leaf begin to sway

Havets tilstand

Moderate waves taking longer form, many whitecaps, some spray

Hastighed
  • 28-38 km/h
  • 15-20,5 noeuds (knot)
  • 17,4-23,61 mph
hauteur
  • 2-3 m
  • 6-9 ft
 Signe

Vindstyrke 6 - Strong Breeze

Indvirkning på jorden

Larger tree branches moving, whistling in wires

Havets tilstand

Larger waves , whitecaps common, more spray

Hastighed
  • 38-50 km/h
  • 20,5-27 noeuds (knot)
  • 23,61-31,07 mph
hauteur
  • 3-4 m
  • 9-13 ft
 Signe

Vindstyrke 7 - Near Gale

Indvirkning på jorden

Whole trees moving, resistance felt walking against wind

Havets tilstand

Sea heaps up, waves , white foam streaks off breakers

Hastighed
  • 50-61 km/h
  • 27-33 noeuds (knot)
  • 31,07-37,9 mph
hauteur
  • 4-5,5 m
  • 13-19 ft
 Signe

Vindstyrke 8 - Gale

Indvirkning på jorden

Whole trees in motion, resistance felt walking against wind

Havets tilstand

Moderately high waves of greater length, edges of crests begin to break into spindrift, foam blown in streaks

Hastighed
  • 62-74 km/h
  • 33-40 noeuds (knot)
  • 37,9-45,98 mph
hauteur
  • 5,5-7,5 m
  • 18-25 ft
 Signe

Vindstyrke 9 - Strong Gale

Indvirkning på jorden

Slight structural damage occurs, slate blows off roofs

Havets tilstand

High waves, sea begins to roll, dense streaks of foam, spray may reduce visibility

Hastighed
  • 75-88 km/h
  • 40-47,5 noeuds (knot)
  • 45,98-54,68 mph
hauteur
  • 7-10 m
  • 23-32 ft
 Signe

Vindstyrke 10 - Storm

Indvirkning på jorden

Seldom experienced on land, trees broken or uprooted,considerable structural damage

Havets tilstand

Very high waves with overhanging crests, sea white with densely blown foam, heavy rolling, lowered visibility

Hastighed
  • 89-102 km/h
  • 47,5-55 noeuds (knot)
  • 54,68-63,38 mph
hauteur
  • 9-12,5 m
  • 29-41 ft
 Signe

Vindstyrke 11 - Violent Storm

Indvirkning på jorden

Widespread devastation

Havets tilstand

Exceptionally high waves, foam patches cover sea, visibility more reduced

Hastighed
  • 103-117 km/h
  • 55-63 noeuds (knot)
  • 63,38-72,2 mph
hauteur
  • 11,5-16 m
  • 37-52 ft
 Signe

Vindstyrke 12 - Hurricane

Indvirkning på jorden

Considerable destruction

Havets tilstand

Air filled with foam, sea completely white with driving spray, visibility greatly reduced

Hastighed
  • >118 km/h
  • >63 noeuds (knot)
  • >72,2 mph
hauteur
  • >14 m
  • >46 ft
 Signe