Live Ravenspoint stationupdated 20 minutes agoObservation and automated quality checks valid
Trearddur Bay Sailing Club
Race-day dashboard
Enter the planned start time and fleets to combine the six-hour Ravenspoint forecast with the 2026 Course Selector, sea-state guidance and nearby tide turns.
Automatic validation
Do not rely on dashboard data
Six-hour local forecastupdated 13 minutes ago6 of 6 horizons available
Met Office inputsupdated 15 minutes agoForecast, observations and probabilistic feed valid
Marine sea-state guidanceupdated 20 minutes agoMatching wave record available for start time
Trearddur Bay tidesupdated 22.2 hours ago4 tide events available for the day
An essential station or forecast input is stale, incomplete or invalid. Confirm conditions independently and do not use the automated course recommendation.
Recommendation for 23:55
Long course set
Likely suitable. Based on the nearest forecast at 23:55.
Matrix column75°magnetic
OOD course list
Recommended courses
Start line: Red
Why this recommendation?
The 79 degree true forecast converts to approximately 80 degrees magnetic and uses the nearest 15 degree matrix column: 075 degrees.
Long selected because the forecast mean is 7.8 kt and gust 12.2 kt, within the Force 3-4 wind band used by the card when conditions are suitable.
Wind-based selection; shorten for poor visibility, rough sea or other race-management concerns.
Trearddur Bay Sailing Club
Sailing area
Mon 24 Aug, 23:55 · Wind E 79 deg T at 7.8 kt, gust 12.2 kt · Long course, 75 deg magnetic
6 plotted courses
Course 1WOppy 2Route diagram is not available in the supplied chart
Why: The 2026 selector assigns Course 1W to Oppy 2 for this course length and magnetic-bearing column. Its route refers to page 27, which was not included in the supplied scan.
Course 4ROptimist4 rounds · Outer Bay · start Red
Why: The Long matrix at 075 degrees magnetic assigns Course 4R to Optimist. The R suffix selects the published reverse mark sequence. The route starts at the midpoint of the Red line, uses Outer Bay as its Bay Mark and finishes at the midpoint of the white line.
Course 8RFeva2 rounds · Green Bay · start Red
Why: The Long matrix at 075 degrees magnetic assigns Course 8R to Feva. The R suffix selects the published reverse mark sequence. The route starts at the midpoint of the Red line, uses Green Bay as its Bay Mark and finishes at the midpoint of the white line.
Course 8RSlow Misc, Myth2 rounds · Outer Bay · start Red
Why: The Long matrix at 075 degrees magnetic assigns Course 8R to Slow Misc, Myth. The R suffix selects the published reverse mark sequence. The route starts at the midpoint of the Red line, uses Outer Bay as its Bay Mark and finishes at the midpoint of the white line.
Course 20RMisc1.5 rounds · Green Bay · start Red
Why: The Long matrix at 075 degrees magnetic assigns Course 20R to Misc. The R suffix selects the published reverse mark sequence. The route starts at the midpoint of the Red line, uses Green Bay as its Bay Mark and finishes at the midpoint of the white line.
Course 16R1/2 Rater1.5 rounds · Inner Bay · start Red
Why: The Long matrix at 075 degrees magnetic assigns Course 16R to 1/2 Rater. The R suffix selects the published reverse mark sequence. The route starts at the midpoint of the Red line, uses Inner Bay as its Bay Mark and finishes at the midpoint of the white line.
The blue arrow points downwind and its label states where the wind comes from. Each coloured route begins at the midpoint of its recommended start line, follows the published mark sequence and finishes on the white line. The OOD's instructions remain authoritative.
Local tidal-stream chart
Tidal flow at the planned start
3 hours after high water Trearddur Bay, using high water at 20:47.
OOD interpretation
The arrows show the expected local direction of flow around the racing area for this state of tide.
Timing is approximate: the source annotations show that local turns can occur at different times on springs and neaps. Wind, pressure and local eddies can also alter the flow experienced on the course.
Confirm the stream at the committee boat and relevant marks before setting the course. Do not infer slack water solely from high or low water.