But from the looks of this map we should be in for some waves.
|Irene may not bring much rain or wind, but we could see some surf.|
However, not being an oceanographer, I cannot speak precisely as to what SWAN Significant Wave Height means. According to Wikipedia it is defined as “the average wave height (form trough to crest) of the one-third largest waves.”
If I'm reading the legend correctly ....
That's some pretty high seas!