ATL: IRMA - Post-Tropical - Discussion

[KWT]

I never thought I would see a storm of this strength and intensity maintain itself for so long in the Atlantic. And there's absolutely no sign that this is weakening or any reason to think it will weaken soon. Unreal.

Yeah certainly an exceptional hurricane, it is much closer to a WPAC type typhoon than your typical Atlantic, especially with that large stable eye and the continual cat-5 wind speeds for such a long sustained time. As you said it looks like its got a while to run at this power yet!

[Extratropical94]

URNT15 KNHC 061947
AF305 1311A IRMA HDOB 44 20170906
193730 1708N 06328W 6966 03163 0044 +108 +058 207039 040 031 001 00
193800 1709N 06330W 6967 03161 0044 +106 +063 206039 040 030 002 00
193830 1710N 06331W 6967 03160 0045 +105 +062 205039 039 031 002 00
193900 1711N 06333W 6966 03161 0045 +104 +059 205040 040 031 002 00
193930 1712N 06335W 6967 03160 0044 +105 +060 206041 041 031 001 00
194000 1713N 06336W 6967 03159 0048 +102 +060 208040 040 032 001 00
194030 1714N 06338W 6963 03162 0047 +101 +057 204040 041 033 001 00
194100 1715N 06339W 6969 03156 0042 +105 +064 202039 040 033 001 00
194130 1716N 06341W 6963 03161 0044 +101 +070 203038 039 033 001 00
194200 1717N 06342W 6966 03157 0048 +098 +066 201038 039 033 002 00
194230 1719N 06344W 6967 03156 0050 +096 +061 200038 038 033 002 00
194300 1720N 06345W 6966 03154 0049 +095 +062 202038 039 034 001 00
194330 1721N 06346W 6969 03149 0044 +098 +064 204040 040 034 001 00
194400 1723N 06348W 6967 03150 0038 +101 +059 204040 041 035 001 03
194430 1724N 06349W 6967 03146 0034 +101 +066 201040 040 036 000 00
194500 1725N 06351W 6968 03145 0028 +104 +072 200040 040 036 001 00
194530 1727N 06352W 6966 03145 0030 +101 +075 198041 041 035 002 00
194600 1728N 06353W 6969 03140 0029 +100 +082 199040 041 036 001 00
194630 1730N 06355W 6970 03139 0032 +096 +087 201041 042 036 001 00
194700 1731N 06356W 6962 03146 0030 +096 +079 202040 041 034 002 00

[Cunxi Huang]

W ring + WMG eye = T7.0. ADT raw# up to 7.6 right now...holy cow

2017SEP06 184535 7.0 923.0 140.0 7.0 7.6 7.6 NO LIMIT OFF OFF 19.34 -76.57 EYE 21 IR 88.9 18.70 64.72 COMBO GOES16 35.7

[BYG Jacob]

Correct me if I'm wrong, but does that show her core has pushed up into the troposphere?

Absolutely.
Must be a massive up draft.

Wow, that's insane, that doesn't happen often, especially in the Atlantic.

[Kazmit]

Is Irma still strengthening or has it levelled off in intensity? I haven't checked in on it since this morning.

[Extratropical94]

Is Irma still strengthening or has it levelled off in intensity? I haven't checked in on it since this morning.

winds have gone down a bit, pressure went up by almost 10 mbs, but it is falling again right now

[BYG Jacob]

Is Irma still strengthening or has it levelled off in intensity? I haven't checked in on it since this morning.

She's strengthening.

[SunnyThoughts]

Wow at 7.6 raw T#. I read somewhere that 8.0 is the highest ever recorded in Atlantic?

[KWT]

W ring + WMG eye = T7.0. ADT raw# up to 7.6 right now...holy cow

What is even worse is its going to be entering waters soon that support even deeper convection thanks to the high heat content, if it avoids land we could well see something close to 8.0 raw (not that 7.6 is not insane in its own right!)

[znel52]

Does anybody know what the highest Dvorak rated storm in the Atlantic was? Gilbert? Whatever the record is this has to be giving it a run for its money.

Yes, Gilbert was analyzed to be T8.0 by TAFB as shown in its report and it was the only Atlantic hurricane to ever received a T8.0

Wow thanks for the info. I didn't figure an Atlantic storm had ever reached an 8.0. I figured maybe mid-high 7s. Very impressive Gilbert was surely a beautiful monster.

[Extratropical94]

URNT15 KNHC 061957
AF305 1311A IRMA HDOB 45 20170906
194730 1732N 06358W 6965 03138 0022 +101 +072 200041 041 036 001 00
194800 1734N 06359W 6970 03132 0020 +100 +076 203042 042 036 001 00
194830 1735N 06400W 6966 03136 0020 +100 +072 206041 042 037 001 00
194900 1736N 06402W 6966 03134 0022 +098 +072 207043 044 036 002 00
194930 1738N 06403W 6963 03137 0023 +094 +072 205044 044 037 002 01
195000 1739N 06404W 6969 03128 0026 +090 +088 204044 044 038 002 00
195030 1740N 06406W 6967 03131 0028 +089 +082 203043 044 038 002 00
195100 1742N 06407W 6967 03131 //// +081 //// 207044 045 039 003 01
195130 1743N 06408W 6969 03126 0025 +087 +084 209043 043 040 003 01
195200 1744N 06410W 6967 03128 0024 +088 +087 210044 045 040 002 01
195230 1745N 06411W 6964 03129 0018 +094 +079 210046 047 041 001 00
195300 1747N 06413W 6969 03122 0013 +096 +074 209046 047 041 002 00
195330 1748N 06414W 6967 03121 0014 +093 +079 209046 047 041 002 00
195400 1749N 06415W 6966 03120 0014 +090 +078 210049 050 043 002 00
195430 1751N 06417W 6967 03115 0010 +091 +074 208050 051 043 002 00
195500 1752N 06418W 6962 03121 0005 +094 +074 207049 051 044 002 00
195530 1753N 06419W 6968 03111 0001 +096 +071 209051 052 045 002 00
195600 1755N 06421W 6970 03109 9998 +098 +066 209054 054 047 002 00
195630 1756N 06422W 6967 03108 9997 +095 +069 207055 056 047 002 00
195700 1757N 06423W 6967 03104 9991 +097 +070 208055 057 048 003 00

[storm_in_a_teacup]

Correct me if I'm wrong, but does that show her core has pushed up into the troposphere?

Absolutely.
Must be a massive up draft.

Wow, that's insane, that doesn't happen often, especially in the Atlantic.

She's HUNGRY.

(Or is it thirsty? I dunno what you call it when your fuel is water.)

[Aric Dunn]

looks like whatever light shear that was undercutting it earlier has stopped. back to being very symmetric.

[chris_fit]

I live in Parish - About 45 miles SSW of Tampa.

To shutter or not to shutter is the question. What would you guys do? I live in a newer sturdy concrete block single story home.

[SunnyThoughts]

Waiting on this next pass from recon to see if this intensity we are seeing will translate to lower pressure or higher winds or both.

[Dave C]

plane heading towards eye again, should be the last pass maybe for this mission.

[GCANE]

As Hurricane Irma barrels toward Florida, many people are rushing to get out of the state before it hits. But as that demand increases, travelers are complaining that ticket prices are skyrocketing.

https://consumerist.com/2017/09/06/airf ... cane-irma/

[Extratropical94]

URNT15 KNHC 062006
AF305 1311A IRMA HDOB 46 20170906
195730 1759N 06425W 6967 03102 9986 +095 +076 207053 055 049 003 01
195800 1800N 06426W 6963 03100 9989 +091 +079 207054 055 048 003 00
195830 1801N 06428W 6970 03092 9987 +090 +081 208053 053 049 002 00
195900 1803N 06429W 6965 03093 9982 +091 +080 210053 053 053 002 00
195930 1804N 06430W 6965 03088 9972 +095 +078 209054 055 053 002 00
200000 1805N 06432W 6967 03081 9965 +095 +077 210059 061 055 005 00
200030 1806N 06433W 6970 03072 9962 +093 +083 216060 062 055 005 00
200100 1808N 06434W 6964 03074 9953 +096 +069 218061 061 057 002 00
200130 1809N 06436W 6967 03065 9943 +101 +067 218063 064 057 003 00
200200 1810N 06437W 6965 03063 9930 +107 +062 220063 064 059 003 00
200230 1811N 06438W 6967 03054 9921 +108 +077 220065 066 060 004 00
200300 1813N 06439W 6967 03049 9919 +103 +091 217068 070 060 007 00
200330 1814N 06441W 6968 03042 9910 +105 +092 215071 071 060 010 00
200400 1815N 06442W 6967 03040 9913 +099 +089 217075 077 064 009 00
200430 1816N 06443W 6970 03031 9918 +099 +099 221082 084 063 010 00
200500 1817N 06444W 6963 03031 9908 +099 +099 224084 086 066 012 00
200530 1819N 06446W 6967 03019 9895 +096 //// 220084 085 093 009 05
200600 1820N 06447W 6965 03009 //// +084 //// 217086 088 /// /// 05
200630 1821N 06448W 6968 02991 9888 +096 //// 214091 093 126 006 05
200700 1822N 06449W 6983 02957 9872 +102 +102 211083 090 086 052 03

[Prof]

I have a hotel in Moultrie, GA. Do we think that will be far enough out of the path? I can find anything that is just a little further ... I will have to go really far to find anything else.

[GCANE]

The Islands took the worst part of the eyewall it seems.