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named water · Massachusetts

Hate Cove

Doable, but keep one eye on the sky and the other on the chop.

Mostly Clear · 76° · 5 kt windNDBC 44029 · CO-OPS 8418911 · NWS + KLWM
Today's callCautionhigh confidence
Official advisorySmall Craft Advisory

Small Craft Advisory issued July 17 at 12:38PM EDT until July 19 at 12:00PM EDT by NWS Boston/Norton MA In effect through 7/19/2026, 12:00:00 PM EDT.

Read the NWS alert

Small Craft Advisory is active. Boat or Nope keeps this window at Caution even when the forecast remains inside your boat limits.

For Pursuit 235 · 4 hours · limits 15 kt / 2.5 ft

Make 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.

Peak wind7 kt

Daylight forecast

Peak seas1 ft

4 NWS grid hours

Sea stateLong-period swell

1 ft at 12 sec

TideLow 8 AM

4 turns today

Tidal currentNot reported

Tide stage shown as a proxy; no speed inferred

Water level nowNot reported

Selected station has no recent observation

Observed now2 kt

NDBC 44029

Water temperature67.5 °F

NDBC 44029 · observed 7/17/2026, 4:30:00 PM EDT

How the day develops

Wind, waves, and tide stay aligned to the same daylight hours.

Wind5–7 kt

Sustained wind in knots. The dashed line is your selected boat limit.

Waves1–1 ft

Wave height from the NWS marine grid, with clearly identified buoy-based estimates for gaps.

Tide0.1–5.9 ft

Predicted water level in feet relative to MLLW from NOAA CO-OPS.

Hour by hour

Daylight only. The useful part of your day.

7 kt1 ft · 12 secEbb
6 kt1 ft · 12 secEbb
5 kt1 ft · 11 secEbb
5 kt1 ft · 10 secLow 8 PM
View exact hourly readings
TimeWindSea stateTide + currentSky + risk
5 PM7 kt · G 71 ft at 12 sec · Long-period swell5.91 ft · Ebb (tide-stage proxy)Sunny
6 PM6 kt · G 61 ft at 12 sec · Long-period swell3.35 ft · Ebb (tide-stage proxy)Mostly Clear
7 PM5 kt · G 51 ft at 11 sec · Long-period swell1.18 ft · Ebb (tide-stage proxy)Mostly Clear
8 PM5 kt · G 51 ft at 10 sec · Long-period swell0.08 ft · Low 8 PM (tide-stage proxy)Mostly Clear

How this forecast is built

6 of 8 inputs reporting. Stations, locations, and roles are shown below.

Wind + skyNWS forecast at Hate Cove

Resolved directly from the destination coordinates.

WavesNWS grid 44029 + NDBC 44029

The buoy fills wave gaps and supplies observations.

Tide + currentCO-OPS 8418911

Predicted heights, turns, and current speed where supported.

HazardsNWS alert point

1 active notice.

Water levelNot currently reported

Measured-versus-predicted check unavailable.

Water temperatureNDBC 44029 · 67.5°F

Latest available buoy observation.

Source geography

Where these readings come from

Dashed lines connect this destination to the stations contributing marine, tide, and aviation context.

  • Forecast pointHate CoveNWS forecast point
  • BuoyMassachusetts Bay · 4402917.8 NM away
  • Tide gaugeWells · 841891135.8 NM away
  • Current stationPlum Island Sound entrance · ACT08263.2 NM away
  • AviationLawrence Muni · KLWM13.5 NM away
Locating forecast sources…
live · forecast
Strong match

NWS hourly forecast

RoleSupplies the hourly wind, sky, temperature, and precipitation forecast at this destination.

forecast point
Hate Cove · hate-cove
Coordinates
42.7534° N, 70.8205° W

Why this sourceUses the catalog's pre-resolved NWS grid cell for these destination coordinates.

Data timingForecast grid updated · 3 hr ago

ConfidenceThe forecast is resolved directly at this location.

Hourly wind, weather, temperature, and precipitation forecast resolved from the selected latitude/longitude.

live · official alerts
Strong match

NWS active marine hazards

RoleChecks active watches, warnings, advisories, and statements and applies their severity to the boating verdict.

alert point
Hate Cove · hate-cove
Coordinates
42.7534° N, 70.8205° W

Why this sourceResolved directly at the destination coordinates through the NWS active-alert feed.

Data timingAlert feed updated · just now

ConfidenceThe forecast is resolved directly at this location.

1 active National Weather Service alert intersects the selected point.

live · wave forecast
Strong match

NWS coastal marine grid

RoleSupplies forecast wave heights, which Boat or Nope uses before buoy-based estimates when available.

marine grid point
Massachusetts Bay · 44029
Distance
17.8 NM from destination
Coordinates
42.5230° N, 70.5660° W

Why this sourceResolved on the coastal marine grid at 44029, the selected marine reference point for this destination.

Data timingMarine grid updated · 3 hr ago

ConfidenceThe selected source is within 25 NM of the destination.

Wave-height forecast resolved at marine reference 44029. Used before Boat or Nope's observed-buoy fallback when the grid reports usable wave heights.

live · observed
Strong match

NDBC 44029

RoleChecks recent observed wind, waves, and water temperature and helps fill gaps when the marine grid has no usable wave value.

buoy
Massachusetts Bay · 44029
Distance
17.8 NM from destination
Coordinates
42.5230° N, 70.5660° W

Why this sourceSelected from the catalog as the nearest trusted NDBC marine observation station for Hate Cove.

Data timingLatest buoy observation · 2 hr ago

ConfidenceThe selected source is within 25 NM of the destination.

Selected catalog buoy, 17.8 NM from the selected location. Reports observed wind, waves, and water temperature when those sensors are available.

live · prediction
Supporting source

CO-OPS 8418911

RoleSupplies predicted tide heights and high/low timing for each forecast day.

tide station
Wells · 8418911
Distance
35.8 NM from destination
Coordinates
43.3200° N, 70.5630° W

Why this sourceThe configured tide gauge 8443970 did not return complete predictions, so 8418911 was selected from nearby candidates.

Data timingPredictions generated for each selected day

ConfidenceThe source is 35.8 NM away, so local conditions may differ.

Automatic fallbackConfigured 8443970; selected 8418911 after checking 8443970, 8418911.

Selected catalog tide station, 35.8 NM from the selected location. Tide predictions and high/low events in feet relative to MLLW for the available forecast days.

unavailable · observed water level
Supporting source

CO-OPS observed water level 8418911

RoleCompares the latest measured water level with the predicted tide to reveal material positive or negative departures.

water-level station
Wells · 8418911
Distance
35.8 NM from destination
Coordinates
43.3200° N, 70.5630° W

Why this sourceUses the same selected CO-OPS station as the tide forecast so observed and predicted heights share the MLLW datum.

Data timingNo recent water-level observation

ConfidenceThe source is 35.8 NM away, so local conditions may differ.

Checks whether the selected CO-OPS station reports a recent measured water level that can be compared with prediction.

unavailable · current prediction
Unavailable

CO-OPS currents ACT0826

RoleSupplies predicted flood, ebb, and slack timing and speed for wind-against-current risk checks when NOAA supports the nearby station.

current prediction station
Plum Island Sound entrance · ACT0826
Distance
3.2 NM from destination
Coordinates
42.7050° N, 70.7883° W

Why this sourceSelected by distance from NOAA's current-prediction station layer and validated against the live prediction API.

Data timingPrediction unavailable

ConfidenceNearby candidates were checked, but none returned usable data during the latest refresh.

No reporting candidateChecked ACT0826, ACT0816, ACT0821, ACT0831; none returned usable data.

Boat or Nope only shows current speed when a nearby NOAA prediction station returns usable flood, ebb, or slack data; tide stage remains clearly labeled as a proxy otherwise.

live · observed + forecast
Strong match

AviationWeather KLWM

RoleAdds nearby observed and forecast gust context from METAR and TAF reports.

aviation station
Lawrence Muni · KLWM
Distance
13.5 NM from destination
Coordinates
42.7172° N, 71.1234° W

Why this sourceChosen from the nearest aviation candidates that returned a current METAR or TAF report.

Data timingLatest METAR observation · 57 min ago

ConfidenceThe selected source is within 25 NM of the destination.

Nearest aviation candidates: KLWM 13.5 NM, KPSM 19.5 NM, KBOS 24.7 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.

Wave character: Wave height and dominant period are combined to distinguish long-period swell from short or steep chop. The label explains comfort and handling; it is not a replacement for a vessel-specific stability assessment.

Current and water level: Current speed is shown only when a nearby NOAA current-prediction station returns usable data. Observed water level is compared with the same station's MLLW tide prediction; tide stage is not presented as measured current speed.

Verdict: Go, Caution, No-Go, or Incomplete uses your wind and sea limits, then applies official active-alert severity and identified wave/current compound risks.

Source retrieval17 reused · 12 refreshed

Updated 7/17/2026, 5:50:30 PM EDT · Planning context, not certified navigation.

Local source coverage

Planning a boating day at Hate Cove

Hate Cove is a Northeast boating destination in Massachusetts, with local wind, wave, tide, and aviation weather conditions from nearby reporting stations.

This named water in Massachusetts uses Massachusetts Bay (44029, 17.8 NM away) for marine observations, Boston (8443970, 26.1 NM away) for tide predictions, and Lawrence Muni (KLWM, 13.5 NM away) for nearby aviation weather context.

This location is part of Boat or Nope's reviewed launch catalog and remains subject to automated source-health checks.

Nearby harbors

Restless? Sail on.