Go to magicseaweed.com.
In the field near the top left, select the location you want to know about.
Click on "charts" (the 4th option over in the black line across the upper middle).
Wait until the first chart loads. You can use the drop down menu to change the chart to reflect wind, periods, etc. You can also go through the time changes manually by pressing the pause and forward symbols.
I use it every few days and it hasn't let me down once. I know there are NOAA forecast charts, and I'm guessing MS just displays NOAA info in a "conditions for dummies" kind of way, but it's great!