Very Interesting Katrina Wind Map

[m_ru]

only thing that looks wrong to me is the fact that they got Gautier and Mosspoint flip flopped.

[Aslkahuna]

Typically, as I have noted before, the gust ratio for overwater ranges from 1.2-1.25. Overland, JTWC found in their study that the gust ratio ranged from 1.4-1.6. Consequently, wind gusts in the 140-160mph range will correspond to sustained winds of 88-114mph depending upon which ratio is operative (which depends upon roughness). Inland during Rita, it appeared that the ratio was in the 1.6 range.

Steve

[fasterdisaster]

In Plaquemines parish, there were gusts of 155 mph. Based on the reports I DID hear, this map looks accurate, I think that it was definitely a Cat 4 if there was a gust of 155 mph on land.

[fasterdisaster]

The highest gust I heard about in Andrew was 171 mph, the intensity landfall is 165 mph, if there was a gust of 155 mph in Katrina, I think that 145 mph is accurate.

[Derek Ortt]

the highest gust was 177 m.p.h. before the arrival of the eye wall

a gust to 155 is consistent with a 110-115KT cat 3, but then again, its likely an estimate

[fasterdisaster]

the highest gust was 177 m.p.h. before the arrival of the eye wall

a gust to 155 is consistent with a 110-115KT cat 3, but then again, its likely an estimate

Isn't 115 knots a Category 4?

[truballer#1]

the highest gust was 177 m.p.h. before the arrival of the eye wall

a gust to 155 is consistent with a 110-115KT cat 3, but then again, its likely an estimate

Isn't 115 knots a Category 4?

115kt is 130mph

[fasterdisaster]

the highest gust was 177 m.p.h. before the arrival of the eye wall

a gust to 155 is consistent with a 110-115KT cat 3, but then again, its likely an estimate

Isn't 115 knots a Category 4?

115kt is 130mph

Then why do they refer to 135 mph as 115 knots in the advisories?

[Derek Ortt]

it refers to both 130 and 135 m.p.h. Frederic was 115KT, but a 3 at landfall

[fasterdisaster]

Thanks for clearing that up.