Wind krag 0 - Calm

Impak op die aarde

Calm, smoke rises vertically

See staat

Sea surface smooth and mirror-like

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

Wind krag 1 - Light Air

Impak op die aarde

Smoke drift indicates wind direction, still wind vanes

See staat

Scaly ripples, no foam crests

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

Wind krag 2 - Light Breeze

Impak op die aarde

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

See staat

Small wavelets, crests glassy, no breaking

Speed
  • 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

Wind krag 3 - Gentle Breeze

Impak op die aarde

Leaves and small twigs constantly moving, light flags extended

See staat

Large wavelets, crests begin to break, scattered whitecaps

Speed
  • 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

Wind krag 4 - Moderate Breeze

Impak op die aarde

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

See staat

Small waves. becoming longer, numerous whitecaps

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

Wind krag 5 - Fresh Breeze

Impak op die aarde

Small trees in leaf begin to sway

See staat

Moderate waves taking longer form, many whitecaps, some spray

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

Wind krag 6 - Strong Breeze

Impak op die aarde

Larger tree branches moving, whistling in wires

See staat

Larger waves , whitecaps common, more spray

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

Wind krag 7 - Near Gale

Impak op die aarde

Whole trees moving, resistance felt walking against wind

See staat

Sea heaps up, waves , white foam streaks off breakers

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

Wind krag 8 - Gale

Impak op die aarde

Whole trees in motion, resistance felt walking against wind

See staat

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

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

Wind krag 9 - Strong Gale

Impak op die aarde

Slight structural damage occurs, slate blows off roofs

See staat

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

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

Wind krag 10 - Storm

Impak op die aarde

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

See staat

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

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

Wind krag 11 - Violent Storm

Impak op die aarde

Widespread devastation

See staat

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

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

Wind krag 12 - Hurricane

Impak op die aarde

Considerable destruction

See staat

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

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