Expanded-coverage previewThis location uses healthy nearby sources with broader station distances. The exact stations and distances are shown below.
First Light Boatworks & Marine Railway
Not today, captain. The water is outside your comfort line.
Patchy Smoke · 80° · 8 kt windNo 4-hour stretch stays inside the Pursuit 235 limits of 15 kt wind and 2.5 ft seas.
For Pursuit 235 · 4 hours · limits 15 kt / 2.5 ftMake it yours, skipper
The flag re-reads the water for your boat and your day.
Your boat
Time on the water
Your comfort line: 15 kt wind · 2.5 ft seas
Pick your day
Seven days, one honest flag each.
Showing hourly detail for today. Each flag uses that day's own forecast.
Daylight forecast
9 NWS grid hours
4 turns today
NDBC 44020
How the day develops
Sustained wind in knots. Gusts may run higher.
Hour by hour
Daylight only. The useful part of your day.
View exact hourly readings
How this forecast is built
5 of 5 inputs reporting. Stations, locations, and roles are shown below.
NWS hourly forecast
RoleSupplies the hourly wind, sky, temperature, and precipitation forecast at this destination.
- forecast point
- First Light Boatworks & Marine Railway · first-light-boatworks-marine-railway
- Coordinates
- 41.6745° N, 69.9531° W
Hourly wind, weather, temperature, and precipitation forecast resolved from the selected latitude/longitude.
NWS coastal marine grid
RoleSupplies forecast wave heights, which Boat or Nope uses before buoy-based estimates when available.
- marine grid point
- Nantucket Sound · 44020
- Distance
- 18.2 NM from destination
- Coordinates
- 41.4970° N, 70.2830° W
Wave-height forecast resolved at NDBC 44020. Used before Boat or Nope's observed-buoy fallback when the grid reports usable wave heights.
NDBC 44020
RoleChecks recent observed wind and waves and helps fill gaps when the marine grid has no usable wave value.
- buoy
- Nantucket Sound · 44020
- Distance
- 18.2 NM from destination
- Coordinates
- 41.4970° N, 70.2830° W
Nearest catalog buoy, 18.2 NM from the selected location. Observed wind and wave reports when this station reports seas.
CO-OPS 8447435
RoleSupplies predicted tide heights and high/low timing for each forecast day.
- tide station
- Chatham · 8447435
- Distance
- 0.8 NM from destination
- Coordinates
- 41.6880° N, 69.9510° W
Nearest catalog tide station, 0.8 NM from the selected location. Tide predictions and high/low events in feet relative to MLLW for the available forecast days.
AviationWeather KHYA
RoleAdds nearby observed and forecast gust context from METAR and TAF reports.
- aviation station
- Barnstable Muni · KHYA
- Distance
- 14.7 NM from destination
- Coordinates
- 41.6693° N, 70.2804° W
Nearest aviation candidates: KHYA 14.7 NM, KACK 25.8 NM, KPVC 26.7 NM.
Hourly seas: NWS coastal marine-grid wave height is preferred when available. Gaps fall back to the latest NDBC wave observation projected with forecast wind; fallback values are planning estimates, not NOAA wave forecasts.
Verdict: Go, Caution, No-Go, or Incomplete is derived from the boat limits you select for wind and seas.
Updated 7/16/2026, 12:29:54 PM EDT · Planning context, not certified navigation.
Nearby harbors