Winthrop harbor buoy
NDBC buoy 45187
Observed , 39 minutes ago
Challenging
Small Craft Advisory in effect. Moderate NNE winds at 14 kn gusting to 17 kn. Small chop seas at 3 ft with 5 second dominant period from the ENE. Water 63°F, air 65°F. Tonight: Northeast Wind 10 To 15 Knots With Gusts To Around 20 Knots Becoming East 15 To 20 Knots In The Late Evening And Overnight.
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 2:36PM CDT until September 24 at 1:00PM CDT by NWS Milwaukee/Sullivan WI
* WHAT...East to northeast winds 10 to 20 kt. Waves 3 to 5 ft. * WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL. * WHEN...Until 1 PM CDT Thursday. * IMPACTS...Conditions will be hazardous to small craft.
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Get Buoycast for iPhoneWind
Speed
14kn
Gust
17kn
Direction
30° NNE
Trend
Steady
Last 11 hours7.8 to 14 kn
Waves
3.3ft
Period
5 s
Direction
62° ENE
Last 11 hours3 to 4.9 ft
Air temp
65°F
61 to 65°F today
Water temp
63°F
63 to 63°F today
Pressure
1026mbar
Tendency
Easing
3 hour change
-4.5 mbar
Last 11 hours1025 to 1030 mbar
Zone forecast
Tonight
Northeast Wind 10 To 15 Knots With Gusts To Around 20 Knots Becoming East 15 To 20 Knots In The Late Evening And Overnight. Mostly Cloudy Through Around Midnight Then Becoming Partly Cloudy. Waves 3 To 4 Feet.
Thursday
East Wind 15 To 20 Knots Easing To 10 To 15 Knots Early In The Afternoon, Then Becoming East 10 To 15 Knots Late In The Afternoon. Mostly Sunny. Waves 3 To 4 Feet.
Thursday Night
East Wind 10 To 15 Knots Veering Southeast Early In The Morning. Partly Cloudy Through Around Midnight Then Becoming Mostly Cloudy. Waves 1 To 3 Feet Building To 2 To 4 Feet After Midnight.
NWS zone Wind Point WI to Winthrop Harbor IL
Last 24 hours
Every 3 hours, over the last 12 hours. Air 61 to 65°F, water 63 to 63°F, pressure 1,025 to 1,030 mbar over the same window.
3 stations within 30 NM
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Get Buoycast for iPhoneCommon questions
How often does buoy 45187 report?
Wind, temperature and pressure update about every 10 minutes. Wave height and period update about every 30 minutes.
Can I be notified when conditions change at buoy 45187?
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 Wind Point WI to Winthrop Harbor IL 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 45187 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 45187 for next time?
Save it as a favorite and Buoycast opens on the buoys you run.
Station 45187
42°29'28" N 87°46'44" W · owned and maintained by University of Illinois at Urbana-Champaign
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.