[quote=tami]Data from the Gulfport Outer Range, which is just inside of Ship Island.
http://www.ndbc.noaa.gov/station_page.php?station=gpom6
Time is Greenwich Standard, so it's local plus 6h, so from 1700 GMT to about 1900 GMT I figure is when we were in the Gulfport Channel.
What's interesting here is the wind shift (WDIR degT column). Note the shifts. And that's measured at anemometer height: 13.7 m above site elevation (ergo 43' high). I'd say the shifts may have been more violent at sea level. All I can say is that the shifty gusts made it damn hard to guess what sail to hang, and I didn't call it very well.
The WSPD column is wind speed, measured in metres per second, please multiply by 1.94 to approximate knots. It would appear the max gust was about 17kt. But do also note how these numbers jump around, too.
Unfortunately, this station doesn't measure wave height, and the only buoys which do are too far offshore to be relevant. Personally, I estimate the wave height from start to D mark at 1-2 feet, from D to A mark at 2-4 feet, and in the Gulfport Channel (A to the Tower From Hell) at 2-4 with the occasional 5 footer. In the Gulfport Channel, the waves were short wavelength and thus appeared to be quite steep and were very hard to work in combination with the windshifts.
#YY MM DD hh mm WDIR WSPD GST WVHT DPD APD MWD PRES ATMP WTMP DEWP VIS PTDY TIDE
#yr mo dy hr mn degT m/s m/s m sec sec degT hPa degC degC degC nmi hPa ft
2011 10 01 18 54 360 5.7 6.7 MM MM MM MM 1018.5 23.0 MM MM MM MM MM
2011 10 01 18 48 10 6.2 7.2 MM MM MM MM 1018.6 22.7 MM MM MM MM MM
2011 10 01 18 42 20 5.7 7.7 MM MM MM MM 1018.7 22.6 MM MM MM MM MM
2011 10 01 18 36 10 4.6 6.2 MM MM MM MM 1018.8 22.6 MM MM MM MM MM
2011 10 01 18 30 10 4.6 5.7 MM MM MM MM 1018.8 22.6 MM MM MM MM MM
2011 10 01 18 24 10 3.1 4.6 MM MM MM MM 1019.0 22.2 MM MM MM MM MM
2011 10 01 18 18 360 4.1 4.6 MM MM MM MM 1019.2 22.1 MM MM MM MM MM
2011 10 01 18 12 20 3.6 5.1 MM MM MM MM 1019.2 22.1 MM MM MM MM MM
2011 10 01 18 06 20 4.1 5.7 MM MM MM MM 1019.4 21.8 MM MM MM MM MM
2011 10 01 18 00 50 3.6 4.6 MM MM MM MM 1019.5 21.5 MM MM MM -0.8 MM
2011 10 01 17 54 50 3.1 4.6 MM MM MM MM 1019.5 21.5 MM MM MM MM MM
2011 10 01 17 48 40 3.1 4.6 MM MM MM MM 1019.7 21.4 MM MM MM MM MM
2011 10 01 17 42 20 4.6 5.7 MM MM MM MM 1019.8 21.4 MM MM MM MM MM
2011 10 01 17 36 40 4.6 6.2 MM MM MM MM 1019.9 21.3 MM MM MM MM MM
2011 10 01 17 30 30 4.6 6.2 MM MM MM MM 1019.9 21.4 MM MM MM MM MM
2011 10 01 17 24 40 5.1 6.2 MM MM MM MM 1020.0 21.4 MM MM MM MM MM
2011 10 01 17 18 40 5.7 7.2 MM MM MM MM 1020.1 21.1 MM MM MM MM MM
2011 10 01 17 12 40 5.1 6.2 MM MM MM MM 1020.2 21.1 MM MM MM MM MM
2011 10 01 17 06 30 6.2 7.7 MM MM MM MM 1020.2 21.1 MM MM MM MM MM
2011 10 01 17 00 30 5.1 6.7 MM MM MM MM 1020.2 21.2 MM MM MM +0.3 MM
2011 10 01 16 54 50 5.7 7.7 MM MM MM MM 1020.2 20.9 MM MM MM MM MM
2011 10 01 16 48 50 6.2 8.2 MM MM MM MM 1020.3 20.9 MM MM MM MM MM
2011 10 01 16 42 40 6.2 8.8 MM MM MM MM 1020.3 21.2 MM MM MM MM MM
2011 10 01 16 36 40 6.2 7.7 MM MM MM MM 1020.3 21.2 MM MM MM MM MM
2011 10 01 16 30 50 6.2 7.7 MM MM MM MM 1020.4 20.9 MM MM MM MM MM
2011 10 01 16 24 50 5.7 7.7 MM MM MM MM 1020.4 21.0 MM MM MM MM MM
2011 10 01 16 18 40 6.2 7.7 MM MM MM MM 1020.4 21.0 MM MM MM MM MM
2011 10 01 16 12 40 6.2 7.2 MM MM MM MM 1020.4 20.8 MM MM MM MM MM
2011 10 01 16 06 50 6.2 7.2 MM MM MM MM 1020.5 20.6 MM MM MM MM MM
2011 10 01 16 00 40 6.2 7.2 MM MM MM MM 1020.5 20.2 MM MM MM +1.4 MM<!-- editby --><em>Edited by tami on Oct 03, 2011 - 09:09 AM.</em><!-- end editby --> [/quote]
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