CAT 5 Hurricane Dean - Archived threads

[Derek Ortt]

for the 208 gust to be valid, Dean would have had to have produced the first ever recorded EF-5 tornado from a hurricane

[tolakram]

[Tom8]

growing of the hurrican seen here in the last pictures to

http://hadar.cira.colostate.edu/ramsdis ... _ls_0.html

[Stormavoider]

for the 208 gust to be valid, Dean would have had to have produced the first ever recorded EF-5 tornado from a hurricane

[LeeJet]

208 mph is an EF-3/4 tornado.

[theworld]

[miamicanes177]

Jeff Masters has a very different story...according to him the eyewall never came ashore:

It could have been much worse, but it is very bad for Jamaica. Hurricane Dean's northern eyewall is just offshore the southern tip of Jamaica, bringing sustained Category 2 hurricane winds to southern Jamaica. A recent wind analysis prepared by NOAA's Hurricane Research Division (Figure 1) at 3:30pm EDT today shows winds of Category 1 strength (>65 knots, or 74 mph) already affecting the east end of the island. By extrapolating this wind field over the island to the west-northwest, in anticipation of Dean's track, it is apparent that perhaps 90% of the island will experience sustained winds of 74 mph or greater. At 4pm EDT, Kingston, on the southern side of the island, recorded sustained winds of 81 mph before the instrument failed. We can expect that the southern 1/3 of the island, including Kingston, will receive sustained winds of Category 2 strength--96 to 114 mph. Category 3 and higher winds will be confined to the southernmost 5% of the island, and it appears that the Category 4 winds will stay offshore. The portion of the island affected by the Category 3 winds is very sparsely populated.

Jamaica will suffer billions in damage from Dean. The high winds and rains of up to 20 inches will no doubt claim lives, athough probably not as many as the 45 who died during Hurricane Gilbert of 1988. Gilbert cut straight across Jamaica as a Category 3 hurricane with 125-130 mph winds. Kingston measured sustained winds of 116 mph during Gilbert; I expect the top winds in Dean will be 10 mph slower than that.

[sevenleft]

208 mph is an EF-3/4 tornado.

No, it isn't. It is EF-5.

[RL3AO]

208 mph is an EF-3/4 tornado.

On the Fujita scale yes, but not of the enhanced scale.

[Matt-hurricanewatcher]

99*1.15=113.85 mph in kingstan Jamica. Gilbert seen 116 mph winds, that is 2.15 mph higher then what they have so far seen from Dean.

[aguaviva]

Masters' 4 pm Cat 1 projection has been overtaken by 114 mph facts in Kingston at 7 pm.

[tolakram]

Not sure how often I can do this ...

[timNms]

again if this massive high is buildng in why are the temps here in houston at least supposed to be in the low 90s which is normal and not in the 100's as they were when the high was over us

Higher dewpoints keeping temperatures down? I have no idea, not that it's really relevant to Dean.

well if High pressure = above avg temps and those arnt there that doesnt add up to me
if the high isnt as strong there that does affect dean

im no pro and i may be missing something but that doesnt add up all they way to me

I don't think a high pressure necessarily means above average temps. I think that depends on several different things combined. Probably wrong here, tho

[KBBOCA]

growing of the hurrican seen here in the last pictures to

http://hadar.cira.colostate.edu/ramsdis ... _ls_0.html

Oh my! that is just HUGE.

[Aquawind]

Masters' 4 pm Cat 1 projection has been overtaken by 114 mph facts in Kingston at 7 pm.

He is not alone..it was a Major conditions for parts of Jamaica..Massive Eye and little west wobble.. NHC did well.

[aguaviva]

What was Gilbert's wind just before exiting the western coast of Jamaica? So far it seems like Kingston is getting a Gilbert experience - again.

[weatherman21]

GOES IR at 22:45Z; Notice the 100 knot wind at the station MKJP near Kingston taken from the METAR Plot:

[WindRunner]

The important thing isn't so much the maps as it is the data . . . like this stuff that shows they're still cruising . . .

URNT15 KNHC 192326
AF304 1104A DEAN HDOB 04 20070819
230430 1735N 06631W 4021 07558 0412 -169 -365 028019 019 022 000 00
230500 1735N 06633W 4000 07599 0416 -171 -375 026019 019 024 000 00
230530 1735N 06636W 3994 07611 0418 -173 -384 025020 020 025 000 00
230600 1735N 06638W 3993 07615 0419 -175 -389 026020 020 025 000 00
230630 1735N 06641W 3994 07612 0419 -172 -386 028019 020 023 000 00
230700 1734N 06643W 3993 07614 0420 -170 -377 034018 018 023 000 00
230730 1734N 06646W 3995 07610 0420 -166 -367 039018 018 026 000 00
230800 1734N 06649W 3994 07615 0421 -163 -355 040017 017 023 000 00
230830 1734N 06652W 3993 07616 0421 -160 -345 042017 017 022 000 00
230900 1734N 06654W 3993 07616 0422 -163 -223 040016 017 024 000 00
230930 1733N 06657W 3994 07616 0423 -164 +999 041016 017 023 000 01
231000 1733N 06700W 3994 07619 0425 -165 +999 038016 016 022 000 01
231030 1733N 06702W 3994 07619 0425 -167 +999 036016 017 021 000 01
231100 1733N 06705W 3994 07619 0425 -169 +999 035017 018 023 000 01
231130 1733N 06708W 3991 07625 0425 -170 +999 035017 018 021 000 01
231200 1733N 06711W 3996 07614 0424 -167 -234 040018 018 020 000 00
231230 1732N 06714W 3992 07623 0426 -166 -385 040018 018 021 000 00
231300 1732N 06716W 3992 07627 0428 -170 -458 038018 019 022 000 00
231330 1732N 06719W 3995 07619 0427 -165 -456 044018 018 021 000 00
231400 1732N 06722W 3993 07622 0426 -165 -442 044019 019 021 000 00

[aguaviva]

NHC did extremely well...so did Derek.

[kozzieman]

How big is Dean's eye?