Vindstyrken 0 - Calm

Effekt på jorden

Calm, smoke rises vertically

Sea state

Sea surface smooth and mirror-like

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

Vindstyrken 1 - Light Air

Effekt på jorden

Smoke drift indicates wind direction, still wind vanes

Sea state

Scaly ripples, no foam crests

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

Vindstyrken 2 - Light Breeze

Effekt på jorden

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

Sea state

Small wavelets, crests glassy, no breaking

Fart
  • 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

Vindstyrken 3 - Gentle Breeze

Effekt på jorden

Leaves and small twigs constantly moving, light flags extended

Sea state

Large wavelets, crests begin to break, scattered whitecaps

Fart
  • 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

Vindstyrken 4 - Moderate Breeze

Effekt på jorden

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

Sea state

Small waves. becoming longer, numerous whitecaps

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

Vindstyrken 5 - Fresh Breeze

Effekt på jorden

Small trees in leaf begin to sway

Sea state

Moderate waves taking longer form, many whitecaps, some spray

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

Vindstyrken 6 - Strong Breeze

Effekt på jorden

Larger tree branches moving, whistling in wires

Sea state

Larger waves , whitecaps common, more spray

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

Vindstyrken 7 - Near Gale

Effekt på jorden

Whole trees moving, resistance felt walking against wind

Sea state

Sea heaps up, waves , white foam streaks off breakers

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

Vindstyrken 8 - Gale

Effekt på jorden

Whole trees in motion, resistance felt walking against wind

Sea state

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

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

Vindstyrken 9 - Strong Gale

Effekt på jorden

Slight structural damage occurs, slate blows off roofs

Sea state

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

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

Vindstyrken 10 - Storm

Effekt på jorden

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

Sea state

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

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

Vindstyrken 11 - Violent Storm

Effekt på jorden

Widespread devastation

Sea state

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

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

Vindstyrken 12 - Hurricane

Effekt på jorden

Considerable destruction

Sea state

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

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