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EMC Operational Wave Product Table

The content provided on this page supports model development. These are not official NWS products and should not be relied upon for operational purposes. This web site is not subject to 24/7 support, and thus may be unavailable during system outages.

Operationally generated graphics of the wave fields (no spectra or source terms) are available from Model Analyses and Guidance.

Bulletin files are available from the Production FTP/HTTPS server. Look for gfs.YYYYMMDD/CC/wave/station/bulls.tCCz/gfswave.stationID.bull

Home Product
Model Data

Here you can view any of the individual WAVEWATCH III® graphic products generated during the last six model runs. Simply follow the steps and click to choose the Model, Forecast Zone, Model Run Time, Product, and then click on a Forecast Time (0 is the nowcast, negative times are hindcasts, positive times are forecasts). Buoy information for the selected region is also given in the form of spectral plots, source term plots, and Spectral Bulletins.

Step 1: Choose a Model

GFS-Wave Great Lakes
(NDFD Winds)

Step 2: Choose a Forecast Zone

Great Lakes
Great Lakes Region
Lake Erie
Lake Huron
Lake Michigan
Lake Ontario
Lake Superior

Step 3: Choose a Model Run Time

6 hours
12 hours
18 hours
24 hours
30 hours

Step 4: Choose a Product

Significant Wave Height Peak Wave Period
Wind Sea Wave Height Wind Sea Period
Primary Swell Wave Height Primary Swell Period
Secondary Swell Wave Height Secondary Swell Period
Wind Speed and Direction  

Current Product Selection: Lake Huron

(NDFD winds) (Latest run) 2021/12/16 21z

Wind Sea Period and Mean Direction

The wind sea period identifies the period (the time between waves) of the locally generated waves (in cases with strong local winds). Note that the peak period field shows discontinuities. These discontinuities can loosely be interpreted as swell fronts, although in reality many swell systems overlap at most locations and times.

Step 5: Select a Forecast Time to view the product image
Forecast times are relative to the start time: 0Z, 6Z, 12Z, or 18Z

0 3 6 9 12 15 18 21 24 27 30 33 36
39 42 45 48 51 54 57 60 63 66 69 72 75
78 81 84 87 90 93 96 99 102 105 108 111 114
117 120 123 126 129 132 135 138 141 144