Castle island (nos)
NDBC buoy csim3
Observed , 42 minutes ago
Hazardous
Small Craft Advisory in effect. Moderate NE winds at 16 kn gusting to 19 kn. Air 58°F. Tonight: NE Winds 15 To 20 Kt With Gusts Up To 25 Kt.
It tells you it is rough now. The app tells you before it gets rough, with alerts at the wind and wave limits you set.
Get Buoycast for iPhoneSmall Craft Advisory
Small Craft Advisory issued September 23 at 3:58PM EDT until September 25 at 8:00AM EDT by NWS Boston/Norton MA
* WHAT...For the Small Craft Advisory, northeast winds 15 to 25 kt with gusts up to 30 kt and waves 2 to 3 feet. For the Gale Warning, north winds 20 to 30 kt with gusts up to 45 kt and waves 2 to 4 feet expected. * WHERE...Boston Harbor. * WHEN...For the Small Craft Advisory, until 8 AM EDT Friday. For the Gale Warning, from 8 AM Friday to 8 PM EDT Saturday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.
Pro also pushes NOAA watches, warnings, and advisories when they are issued.
Get Buoycast for iPhoneWind
Speed
16kn
Gust
19kn
Direction
50° NE
Trend
Easing
Last 11 hours12 to 22 kn
Air temp
58°F
Last 11 hours57 to 60°F
Zone forecast
Tonight
NE Winds 15 To 20 Kt With Gusts Up To 25 Kt. Waves 2 To 3 Ft.
Thu
NE Winds 15 To 20 Kt With Gusts Up To 30 Kt. Waves 2 To 3 Ft.
Thu Night
NE Winds 15 To 20 Kt, Increasing To 20 To 25 Kt After Midnight. Gusts Up To 30 Kt. Waves 2 To 3 Ft, Except 4 To 6 Ft At The Outer Harbor Entrance.
Synopsis
Large high pres will remain anchored in the vicinity of Quebec right into the weekend. At the same time, a slow moving and intensifying ocean storm will retrograde towards the coast this weekend. While its exact track and timing remains uncertain, dangerous conditions are expected for mariners later this week into the weekend. NE wind gusts of 35 to 55 knots with seas potentially building 15-20+ feet by the weekend. Mariners should keep up to date with the latest forecasts and be prepared to return to port.
NWS zone Boston Harbor
Last 24 hours
Every 3 hours, over the last 12 hours.
3 stations within 30 NM
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Get Buoycast for iPhoneCommon questions
How often does buoy csim3 report?
Wind and temperature update about every 10 minutes.
Can I be notified when conditions change at buoy csim3?
Buoycast Pro lets you set your own limits on wind, waves or pressure and sends a threshold notification when this buoy crosses them.
Does this page show NOAA warnings for this area?
Watches, warnings, and advisories for Boston Harbor appear alongside the conditions, here and in the app. Pro also pushes NOAA watches, warnings, and advisories when they are issued.
Can I see the forecast against what buoy csim3 measured?
This page shows measurements only. Buoycast Pro charts the NOAA forecast against them so you can see where the two diverge.
Can I keep buoy csim3 for next time?
Save it as a favorite and Buoycast opens on the buoys you run.
What this buoy measures
This buoy is not reporting waves, water temperature or barometric pressure. Conditions above come from the sensors it does carry, and the forecast, tides and sun times on this page are regional rather than measured at the buoy.
Station csim3
42°20'28" N 71°00'43" W · owned and maintained by NOAA NOS PORTS
Measured on the water by 1,000+ NOAA buoys. Observations from the National Data Buoy Center, forecasts and advisories from the National Weather Service. Not for navigation.