Surf Forecast for Three Bears
type: Dataset
description: 10-day surf forecast with Strike Scores for Three Bears, Yallingup, Australia
about: Three Bears
  type: TouristAttraction
  geo: GeoCoordinates
    latitude: -33.5662
    longitude: 114.9898
  description: Three Bears is a consistent left-hand reef break near Yallingup that offers a high-driving barrel after a peaky takeoff. The exposed reef picks up plenty of swell and works across most tidal stages. Named for the three distinct sections along the reef—Papa Bear, Mama Bear, and Baby Bear—each offering different wave characteristics. A reliable option when the bigger Margaret River breaks are too heavy.
summary:
  best day:
    date: 2026-08-05
    score: 49
    category: Fair
    explanation: Best day in the forecast: 2026-08-05 with a score of 49/100 (Fair)
  firing days count: 0
  overall recommendation: Poor conditions overall: Average score 24/100. Look for spots with better forecasts.
forecasts:
  date: 2026-08-05
  day index: 0
  strike score:
    final score: 49
    category: Fair
    category emoji: 😐
    confidence: 1
    confidence explanation: Very high confidence (0-1 day forecast)
    breakdown:
      swell direction:
        score: 17
        out of: 25
        explanation: Moderate alignment: Swell from 236° is 11° off optimal 225°, workable but not ideal.
      swell size:
        score: 1
        out of: 25
        explanation: Too big: 5.1m exceeds maximum 3.0m. Risk of closeouts.
      swell period:
        score: 25
        out of: 25
        explanation: Perfect period: 16s is at or above ideal 14s. Long-period groundswell with maximum power.
      wind:
        score: 9
        out of: 25
        explanation: Onshore/cross-shore: 10 km/h from 298° (WNW). Destroying wave quality. Offshore range: 45°-135°.
    adjustments:
      wind history:
        adjustment: 0
        groomed: false
        morning sickness: false
        explanation: No significant wind history adjustment.
      windswell penalty:
        adjustment: 0
        windswell degraded: false
        explanation: Groundswell-dominant conditions (clean, long-period waves).
      secondary swell bonus:
        adjustment: 0
        explanation: No secondary swell bonus.
    summary: Surfable but not special at Three Bears. The 5.1m swell from 236° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
  conditions:
    swell:
      height m: 5.1
      height ft: 16.7
      direction degrees: 236
      direction cardinal: SW
      period s: 16
      explanation: 5.1m (16.7ft) swell from 236° (SW) at 16s period
    wind:
      speed kmh: 10
      speed mph: 6.2
      direction degrees: 298
      direction cardinal: WNW
      explanation: 10 km/h (6 mph) from 298° (WNW)
    windswell:
      height m: 0.3
      period s: 2
      explanation: Local wind-generated waves (choppy, short-period)
forecasts:
  date: 2026-08-06
  day index: 1
  strike score:
    final score: 30
    category: Poor
    category emoji: 💤
    confidence: 1
    confidence explanation: Very high confidence (0-1 day forecast)
    breakdown:
      swell direction:
        score: 16
        out of: 25
        explanation: Moderate alignment: Swell from 238° is 13° off optimal 225°, workable but not ideal.
      swell size:
        score: 2
        out of: 25
        explanation: Too big: 4.6m exceeds maximum 3.0m. Risk of closeouts.
      swell period:
        score: 25
        out of: 25
        explanation: Perfect period: 16s is at or above ideal 14s. Long-period groundswell with maximum power.
      wind:
        score: 0
        out of: 25
        explanation: Onshore/cross-shore: 24 km/h from 298° (WNW). Destroying wave quality. Offshore range: 45°-135°.
    adjustments:
      wind history:
        adjustment: 0
        groomed: false
        morning sickness: false
        explanation: No significant wind history adjustment.
      windswell penalty:
        adjustment: 0
        windswell degraded: false
        explanation: Groundswell-dominant conditions (clean, long-period waves).
      secondary swell bonus:
        adjustment: 0
        explanation: No secondary swell bonus.
    summary: Poor conditions at Three Bears. Either swell direction (238°), size (4.6m), or wind (24 km/h from 298°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 4.6
      height ft: 15.1
      direction degrees: 238
      direction cardinal: WSW
      period s: 16
      explanation: 4.6m (15.1ft) swell from 238° (WSW) at 16s period
    wind:
      speed kmh: 24
      speed mph: 14.9
      direction degrees: 298
      direction cardinal: WNW
      explanation: 24 km/h (15 mph) from 298° (WNW)
    windswell:
      height m: 1.2
      period s: 4
      explanation: Local wind-generated waves (choppy, short-period)
forecasts:
  date: 2026-08-07
  day index: 2
  strike score:
    final score: 20
    category: Poor
    category emoji: 💤
    confidence: 0.95
    confidence explanation: High confidence (2-3 day forecast)
    breakdown:
      swell direction:
        score: 19
        out of: 25
        explanation: Moderate alignment: Swell from 234° is 9° off optimal 225°, workable but not ideal.
      swell size:
        score: 3
        out of: 25
        explanation: Too big: 4.3m exceeds maximum 3.0m. Risk of closeouts.
      swell period:
        score: 23
        out of: 25
        explanation: Good period: 13s is 93% of ideal 14s. Clean, powerful groundswell.
      wind:
        score: 0
        out of: 25
        explanation: Onshore/cross-shore: 23 km/h from 255° (WSW). Destroying wave quality. Offshore range: 45°-135°.
    adjustments:
      wind history:
        adjustment: -10
        groomed: false
        morning sickness: true
        explanation: -10 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
      windswell penalty:
        adjustment: 0
        windswell degraded: false
        explanation: Groundswell-dominant conditions (clean, long-period waves).
      secondary swell bonus:
        adjustment: 0
        explanation: No secondary swell bonus.
    summary: Poor conditions at Three Bears. Either swell direction (234°), size (4.3m), or wind (23 km/h from 255°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 4.3
      height ft: 14.1
      direction degrees: 234
      direction cardinal: SW
      period s: 13
      explanation: 4.3m (14.1ft) swell from 234° (SW) at 13s period
    wind:
      speed kmh: 23
      speed mph: 14.3
      direction degrees: 255
      direction cardinal: WSW
      explanation: 23 km/h (14 mph) from 255° (WSW)
    windswell:
      height m: 1.3
      period s: 4
      explanation: Local wind-generated waves (choppy, short-period)
forecasts:
  date: 2026-08-08
  day index: 3
  strike score:
    final score: 10
    category: Poor
    category emoji: 💤
    confidence: 0.92
    confidence explanation: High confidence (2-3 day forecast)
    breakdown:
      swell direction:
        score: 17
        out of: 25
        explanation: Moderate alignment: Swell from 236° is 11° off optimal 225°, workable but not ideal.
    summary: Poor conditions at Three Bears. Either swell direction (236°), size (5.9m), or wind (33 km/h from 215°) is unfavorable. Consider other spots or wait for better conditions.
provider: Strike Mission
date published: 2026-08-05T00:33:30.259Z
temporal coverage: 2026-08-05/2026-08-14
data sources: Open-Meteo Marine API (swell/wave data)
data sources: Open-Meteo Weather API (wind/weather data)

score: 0
out of: 25
explanation: Too big: 5.9m exceeds maximum 3.0m. Risk of closeouts.

score: 25
out of: 25
explanation: Perfect period: 14s is at or above ideal 14s. Long-period groundswell with maximum power.

score: 0
out of: 25
explanation: Onshore/cross-shore: 33 km/h from 215° (SW). Destroying wave quality. Offshore range: 45°-135°.

wind history:
  adjustment: -17
  groomed: false
  morning sickness: true
  explanation: -17 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
windswell penalty:
  adjustment: -3
  windswell degraded: false
  explanation: Groundswell-dominant conditions (clean, long-period waves).
secondary swell bonus:
  adjustment: 0
  explanation: No secondary swell bonus.

swell:
  height m: 5.9
  height ft: 19.4
  direction degrees: 236
  direction cardinal: SW
  period s: 14
  explanation: 5.9m (19.4ft) swell from 236° (SW) at 14s period
wind:
  speed kmh: 33
  speed mph: 20.5
  direction degrees: 215
  direction cardinal: SW
  explanation: 33 km/h (21 mph) from 215° (SW)
secondary swell:
  height m: 0.5
  direction degrees: 183
  direction cardinal: S
  period s: 8
windswell:
  height m: 3.9
  period s: 8
  explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-09
day index: 4
strike score:
  final score: 17
  category: Poor
  category emoji: 💤
  confidence: 0.89
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 23
      out of: 25
      explanation: Good alignment: Swell from 227° is 2° off optimal 225°, still within prime range.
    swell size:
      score: 1
      out of: 25
      explanation: Too big: 5.1m exceeds maximum 3.0m. Risk of closeouts.
    swell period:
      score: 23
      out of: 25
      explanation: Good period: 17s is 121% of ideal 14s. Clean, powerful groundswell.
    wind:
      score: 0
      out of: 25
      explanation: Onshore/cross-shore: 17 km/h from 250° (WSW). Destroying wave quality. Offshore range: 45°-135°.
  adjustments:
    wind history:
      adjustment: -21
      groomed: false
      morning sickness: true
      explanation: -21 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
    windswell penalty:
      adjustment: 0
      windswell degraded: false
      explanation: Groundswell-dominant conditions (clean, long-period waves).
    secondary swell bonus:
      adjustment: 0
      explanation: No secondary swell bonus.
  summary: Poor conditions at Three Bears. Either swell direction (227°), size (5.1m), or wind (17 km/h from 250°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 5.1
    height ft: 16.7
    direction degrees: 227
    direction cardinal: SW
    period s: 17
    explanation: 5.1m (16.7ft) swell from 227° (SW) at 17s period
  wind:
    speed kmh: 17
    speed mph: 10.6
    direction degrees: 250
    direction cardinal: WSW
    explanation: 17 km/h (11 mph) from 250° (WSW)
  secondary swell:
    height m: 0.4
    direction degrees: 339
    direction cardinal: NNW
    period s: 10
  windswell:
    height m: 0.6
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-10
day index: 5
strike score:
  final score: 15
  category: Poor
  category emoji: 💤
  confidence: 0.86
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 19
      out of: 25
      explanation: Moderate alignment: Swell from 217° is 8° off optimal 225°, workable but not ideal.
    swell size:
      score: 4
      out of: 25
      explanation: Too big: 4.1m exceeds maximum 3.0m. Risk of closeouts.
    swell period:
      score: 23
      out of: 25
      explanation: Good period: 17s is 121% of ideal 14s. Clean, powerful groundswell.
    wind:
      score: 0
      out of: 25
      explanation: Onshore/cross-shore: 35 km/h from 226° (SW). Destroying wave quality. Offshore range: 45°-135°.
  adjustments:
    wind history:
      adjustment: -11
      groomed: false
      morning sickness: true
      explanation: -11 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
    windswell penalty:
      adjustment: -5
      windswell degraded: true
      explanation: -5 points: Short-period windswell is present, creating choppy, disorganized conditions.
    secondary swell bonus:
      adjustment: 0
      explanation: No secondary swell bonus.
  summary: Poor conditions at Three Bears. Either swell direction (217°), size (4.1m), or wind (35 km/h from 226°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 4.1
    height ft: 13.5
    direction degrees: 217
    direction cardinal: SW
    period s: 17
    explanation: 4.1m (13.5ft) swell from 217° (SW) at 17s period
  wind:
    speed kmh: 35
    speed mph: 21.7
    direction degrees: 226
    direction cardinal: SW
    explanation: 35 km/h (22 mph) from 226° (SW)
  secondary swell:
    height m: 0.6
    direction degrees: 242
    direction cardinal: WSW
    period s: 10
  windswell:
    height m: 3.5
    period s: 7
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-11
day index: 6
strike score:
  final score: 18
  category: Poor
  category emoji: 💤
  confidence: 0.83
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 21
      out of: 25
      explanation: Good alignment: Swell from 220° is 5° off optimal 225°, still within prime range.
    swell size:
      score: 0
      out of: 25
      explanation: Too big: 7.2m exceeds maximum 3.0m. Risk of closeouts.
    swell period:
      score: 25
      out of: 25
      explanation: Perfect period: 15s is at or above ideal 14s. Long-period groundswell with maximum power.
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 21 km/h from 223° (SW). Destroying wave quality. Offshore range: 45°-135°.
  adjustments:
    wind history:
      adjustment: -14
      groomed: false
      morning sickness: true
      explanation: -14 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
    windswell penalty:
      adjustment: 0
      windswell degraded: false
      explanation: Groundswell-dominant conditions (clean, long-period waves).
    secondary swell bonus:
      adjustment: 0
      explanation: No secondary swell bonus.
  summary: Poor conditions at Three Bears. Either swell direction (220°), size (7.2m), or wind (21 km/h from 223°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 7.2
    height ft: 23.6
    direction degrees: 220
    direction cardinal: SW
    period s: 15
    explanation: 7.2m (23.6ft) swell from 220° (SW) at 15s period
  wind:
    speed kmh: 21
    speed mph: 13.0
    direction degrees: 223
    direction cardinal: SW
    explanation: 21 km/h (13 mph) from 223° (SW)
  windswell:
    height m: 1.3
    period s: 4
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-12
day index: 7
strike score:
  final score: 22
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 21
      out of: 25
      explanation: Good alignment: Swell from 220° is 5° off optimal 225°, still within prime range.
    swell size:
      score: 3
      out of: 25
      explanation: Too big: 4.4m exceeds maximum 3.0m. Risk of closeouts.
    swell period:
      score: 23
      out of: 25
      explanation: Good period: 17s is 121% of ideal 14s. Clean, powerful groundswell.
    wind:
      score: 2
      out of: 25
      explanation: Onshore/cross-shore: 14 km/h from 268° (W). Destroying wave quality. Offshore range: 45°-135°.
  adjustments:
    wind history:
      adjustment: -17
      groomed: false
      morning sickness: true
      explanation: -17 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
    windswell penalty:
      adjustment: 0
      windswell degraded: false
      explanation: Groundswell-dominant conditions (clean, long-period waves).
    secondary swell bonus:
      adjustment: 0
      explanation: No secondary swell bonus.
  summary: Poor conditions at Three Bears. Either swell direction (220°), size (4.4m), or wind (14 km/h from 268°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 4.4
    height ft: 14.4
    direction degrees: 220
    direction cardinal: SW
    period s: 17
    explanation: 4.4m (14.4ft) swell from 220° (SW) at 17s period
  wind:
    speed kmh: 14
    speed mph: 8.7
    direction degrees: 268
    direction cardinal: W
    explanation: 14 km/h (9 mph) from 268° (W)
  windswell:
    height m: 0.5
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-13
day index: 8
strike score:
  final score: 30
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Very low confidence (8-10 day forecast, conditions may change)
  breakdown:
    swell direction:
      score: 23
      out of: 25
      explanation: Good alignment: Swell from 223° is 2° off optimal 225°, still within prime range.
    swell size:
      score: 8
      out of: 25
      explanation: Too big: 3.6m exceeds maximum 3.0m. Risk of closeouts.
    swell period:
      score: 25
      out of: 25
      explanation: Perfect period: 16s is at or above ideal 14s. Long-period groundswell with maximum power.
    wind:
      score: 0
      out of: 25
      explanation: Onshore/cross-shore: 24 km/h from 297° (WNW). Destroying wave quality. Offshore range: 45°-135°.
  adjustments:
    wind history:
      adjustment: -11
      groomed: false
      morning sickness: true
      explanation: -11 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
    windswell penalty:
      adjustment: 0
      windswell degraded: false
      explanation: Groundswell-dominant conditions (clean, long-period waves).
    secondary swell bonus:
      adjustment: 0
      explanation: No secondary swell bonus.
  summary: Poor conditions at Three Bears. Either swell direction (223°), size (3.6m), or wind (24 km/h from 297°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 3.6
    height ft: 11.8
    direction degrees: 223
    direction cardinal: SW
    period s: 16
    explanation: 3.6m (11.8ft) swell from 223° (SW) at 16s period
  wind:
    speed kmh: 24
    speed mph: 14.9
    direction degrees: 297
    direction cardinal: WNW
    explanation: 24 km/h (15 mph) from 297° (WNW)
  secondary swell:
    height m: 0.4
    direction degrees: 241
    direction cardinal: WSW
    period s: 15
  windswell:
    height m: 1.1
    period s: 4
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-14
day index: 9
strike score:
  final score: 32
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Very low confidence (8-10 day forecast, conditions may change)
  breakdown:
    swell direction:
      score: 13
      out of: 25
      explanation: Moderate alignment: Swell from 244° is 19° off optimal 225°, workable but not ideal.
    swell size:
      score: 15
      out of: 25
      explanation: Too big: 3.1m exceeds maximum 3.0m. Risk of closeouts.
    swell period:
      score: 25
      out of: 25
      explanation: Perfect period: 16s is at or above ideal 14s. Long-period groundswell with maximum power.
    wind:
      score: 3
      out of: 25
      explanation: Onshore/cross-shore: 14 km/h from 344° (NNW). Destroying wave quality. Offshore range: 45°-135°.
  adjustments:
    wind history:
      adjustment: -14
      groomed: false
      morning sickness: true
      explanation: -14 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
    windswell penalty:
      adjustment: 0
      windswell degraded: false
      explanation: Groundswell-dominant conditions (clean, long-period waves).
    secondary swell bonus:
      adjustment: 0
      explanation: No secondary swell bonus.
  summary: Poor conditions at Three Bears. Either swell direction (244°), size (3.1m), or wind (14 km/h from 344°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 3.1
    height ft: 10.2
    direction degrees: 244
    direction cardinal: WSW
    period s: 16
    explanation: 3.1m (10.2ft) swell from 244° (WSW) at 16s period
  wind:
    speed kmh: 14
    speed mph: 8.7
    direction degrees: 344
    direction cardinal: NNW
    explanation: 14 km/h (9 mph) from 344° (NNW)
  windswell:
    height m: 0.7
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

Strike Mission
type: Organization