Castle island (nos)
NDBC buoy csim3
Observed , 51 minutes ago
Challenging
Small Craft Advisory in effect. Moderate W winds at 11 kn gusting to 23 kn. Air 55°F. This Afternoon: W winds 15 to 20 kt, diminishing to 10 to 15 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 November 8 at 7:39AM EST until November 8 at 4:00PM EST by NWS Boston/Norton MA
* WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves 2 to 3 feet. * WHERE...In Massachusetts coastal waters, Boston Harbor. In Rhode Island coastal waters, Narragansett Bay. * WHEN...Until 4 PM EST this afternoon. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL INFORMATION...Expecting a brief lull in conditions this morning into early afternoon. Gusty winds and rough seas should redevelop by this evening.
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Get Buoycast for iPhoneWind
Speed
11kn
Gust
23kn
Direction
280° W
Trend
Rising
Last 11 hours2.9 to 20 kn
Air temp
55°F
Last 11 hours47 to 55°F
Zone forecast
This Afternoon
W winds 15 to 20 kt, diminishing to 10 to 15 kt. Gusts up to 25 kt. Waves around 2 ft.
Tonight
W winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft.
Mon
W winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft.
Synopsis
Coastal low pres will move into the Maritimes today. This will generate a W flow across the waters through mid-week. Developing low pres will emerge off the coast late in the week, potentially developing into a gale center which may pass in the vicinity of the 40N/70W benchmark sometime Fri into Sat.
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.