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Grand Rapids, MI
 
 
 Point Forecast: 12NM SSW Pentwater MI
 43.59N 86.53W (Elev. 577 ft)
Last Update: 3:05 pm CST Dec 18, 2017
Tabular Forecast
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Weather ElementsMarine WeatherProbabilistic Forecasts (Experimental)
Description | Survey
Temperature (°F)
Dewpoint (°F)
Wind Chill (°F)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)

Rain
Thunder
Snow
Freezing Rain
Sleet
Freezing Spray
Fog
Wave Hght (ft)-Direction
Wave Period (s)
Freezing Spray
Quantitative Precipitation     info
    0.100.250.501.00
Snowfall     info
    0.1in1in3in6in12in

48-Hour Period Starting:       Forward 2 Days  

Date12/1812/19
Hour (CST)171819202122230001020304050607080910111213141516
Surface Wind (kt)161720232525252423232221201919181919192020212122
Wind DirSWSWSWSWSWSWSWWSWWSWWSWWSWWWWWWWWWNWWNWWNWWNWWNWWNW
Gust22262930302524242324242427282829
Wave Height (ft) 445567778888877777666677
Wave Period (sec) 5 5 6 6 6 7 7 7 8 8 8 8 8 7 7 7 7 7 7 7 7 7 7 7
Wave Direction (°)250240240240240240240240240240240240240240240250250260270270270280280280

Date12/20
Hour (CST)171819202122230001020304050607080910111213141516
Surface Wind (kt)22222323232221201919181715141312119865444
Wind DirWNWWNWWNWWNWWNWWNWNWNWNWNWNWNWNNWNNWNNWNNNNNNNNNWN
Gust292930303029272625242322201918
Wave Height (ft) 777777666655444333322222
Wave Period (sec) 7 7 7 7 7 7 7 7 7 7 6 6 6 6 6 6 6 6 6 5 5 5 5 5
Wave Direction (°)280280280280280280280280290290290290290300300300300300310310310310320320

Radar and Satellite (Click for larger image)
Link to Local Radar Data Link to Satellite Data
Additional Forecasts and Information
International System of UnitsForecast Discussion
Marine Point ForecastHourly Weather Graph
National Marine ForecastsTide Information
Area Forecast MatricesLocal Climatology
Daily Climate (Grand Rapids)Tabular State Forecast
Daily Climate (Lansing)Hazardous Weather Outlook
Daily Climate (Muskegon)7 Day Forecast
Lakes & Rivers (AHPS)Nearshore Forecast
Regional Weather RoundupRegional Temp/Precip Table

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