Gaoithe bhfeidhm 0 - Calm

Tionchar ar an domhan

Calm, smoke rises vertically

Farraige stáit

Sea surface smooth and mirror-like

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

Gaoithe bhfeidhm 1 - Light Air

Tionchar ar an domhan

Smoke drift indicates wind direction, still wind vanes

Farraige stáit

Scaly ripples, no foam crests

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

Gaoithe bhfeidhm 2 - Light Breeze

Tionchar ar an domhan

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

Farraige stáit

Small wavelets, crests glassy, no breaking

Luas
  • 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

Gaoithe bhfeidhm 3 - Gentle Breeze

Tionchar ar an domhan

Leaves and small twigs constantly moving, light flags extended

Farraige stáit

Large wavelets, crests begin to break, scattered whitecaps

Luas
  • 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

Gaoithe bhfeidhm 4 - Moderate Breeze

Tionchar ar an domhan

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

Farraige stáit

Small waves. becoming longer, numerous whitecaps

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

Gaoithe bhfeidhm 5 - Fresh Breeze

Tionchar ar an domhan

Small trees in leaf begin to sway

Farraige stáit

Moderate waves taking longer form, many whitecaps, some spray

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

Gaoithe bhfeidhm 6 - Strong Breeze

Tionchar ar an domhan

Larger tree branches moving, whistling in wires

Farraige stáit

Larger waves , whitecaps common, more spray

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

Gaoithe bhfeidhm 7 - Near Gale

Tionchar ar an domhan

Whole trees moving, resistance felt walking against wind

Farraige stáit

Sea heaps up, waves , white foam streaks off breakers

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

Gaoithe bhfeidhm 8 - Gale

Tionchar ar an domhan

Whole trees in motion, resistance felt walking against wind

Farraige stáit

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

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

Gaoithe bhfeidhm 9 - Strong Gale

Tionchar ar an domhan

Slight structural damage occurs, slate blows off roofs

Farraige stáit

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

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

Gaoithe bhfeidhm 10 - Storm

Tionchar ar an domhan

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

Farraige stáit

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

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

Gaoithe bhfeidhm 11 - Violent Storm

Tionchar ar an domhan

Widespread devastation

Farraige stáit

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

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

Gaoithe bhfeidhm 12 - Hurricane

Tionchar ar an domhan

Considerable destruction

Farraige stáit

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

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