Hurricane Katrina

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Thunder44
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#1141 Postby Thunder44 » Sat Aug 27, 2005 11:04 am

There were 122kt flight level winds reported. The winds might have began responding to pressure before it starting rising again.
Last edited by Thunder44 on Sat Aug 27, 2005 11:05 am, edited 1 time in total.
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#1142 Postby WindRunner » Sat Aug 27, 2005 11:05 am

jkt21787 wrote:TWO EYEWALLS...

ERC IS happening...could be trouble once completed...


"Could be"? I guess we have to be cautious right now . . .
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#1143 Postby drezee » Sat Aug 27, 2005 11:06 am

you can see the eyewalls now:

Image
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#1144 Postby djtil » Sat Aug 27, 2005 11:11 am

looking very ragged right now....dry air on the north side, unimpressive core....will be interesting to see how long this trend continues.
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#1145 Postby StormsAhead » Sat Aug 27, 2005 11:11 am

UZNT13 KWBC 271550
XXAA 77167 99241 70856 08145 99982 26622 ///// 00665 ///// /////
92523 23221 30098 85259 19219 31081 70914 122// 32076 88999 77999
31313 09608 81540
61616 NOAA3 1312A KATRINA OB 07
62626 SPL 2406N08554W 1543 WL150 28072 097 DLM WND 31079 979688 M
BL WND 29082 LST WND 022=
XXBB 77168 99241 70856 08145 00982 26622 11968 25822 22947 24424
33735 14013 44702 12414 55688 110//
21212 00982 ///// 11979 28068 22976 27566 33969 28073 44961 28587
55946 29582 66934 30096 77927 30098 88896 31081 99881 31084 11688
32076
31313 09608 81540
61616 NOAA3 1312A KATRINA OB 07
62626 SPL 2406N08554W 1543 WL150 28072 097 DLM WND 31079 979688 M
BL WND 29082 LST WND 022=

925mb wind 98 knots...surface pressure 982mb.
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#1146 Postby StormsAhead » Sat Aug 27, 2005 11:13 am

URNT40 KWBC 271550
NOAA3 1312A KATRINA
154030 2406 08538 10326 -0261 322077 +110 +110 322078 999 999
154100 2404 08539 10212 -0230 320077 +112 +112 321077 999 999
154130 2403 08541 10184 -0207 319078 +114 +114 319080 999 999
154200 2401 08542 10142 -0176 319073 +118 +118 319076 999 999
154230 2400 08544 10117 -0154 320070 +118 +114 321071 063 009
154300 2358 08545 10109 -0124 322069 +118 +116 321070 062 008
154330 2357 08547 10063 -0099 323065 +120 +117 322068 999 999
154400 2356 08549 10021 -0082 318061 +115 +114 319063 999 999
154430 2354 08550 10020 -0064 312058 +109 +109 313058 999 999
154500 2353 08552 10002 -0046 310059 +109 +109 309059 999 999
154530 2351 08553 9957 -0030 311055 +114 +110 311056 999 999
154600 2350 08555 9950 -0013 309055 +114 +110 308055 999 999
154630 2349 08556 9903 +0002 313052 +114 +105 312054 055 007
154700 2347 08558 9947 +0019 313053 +119 +099 313053 050 004
154730 2346 08559 9942 +0029 309050 +122 +101 309050 046 004
154800 2344 08601 9947 +0045 309048 +120 +105 310049 045 004
154830 2343 08602 9940 +0056 308046 +120 +105 308047 044 004
154900 2341 08604 9951 +0069 310048 +122 +099 311050 044 004
154930 2340 08606 9944 +0080 312048 +126 +095 312048 043 003
155000 2338 08607 9948 +0089 314046 +128 +095 313047 042 003
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#1147 Postby StormsAhead » Sat Aug 27, 2005 11:30 am

UZNT13 KWBC 271613
XXAA 77168 99232 70865 08136 99999 34650 28534 00507 ///// /////
92696 27647 30043 85441 22437 29540 88999 77999
31313 09608 81600
51515 10190 70111
61616 NOAA3 1312A KATRINA OB 09
62626 SPL 2317N08641W 1604 WL150 29038 085 DLM WND 29541 998795 M
BL WND 29040 RAINBAND=
XXBB 77168 99232 70865 08136 00999 34650 11987 33649 22884 24028
33804 20250 44760 18033 55750 18057 66724 15423 77701 12657
21212 00999 28534 11994 28539 22916 30043 33868 29539 44823 29544
55701 29544
31313 09608 81600
51515 10190 70111
61616 NOAA3 1312A KATRINA OB 09
62626 SPL 2317N08641W 1604 WL150 29038 085 DLM WND 29541 998795 M
BL WND 29040 RAINBAND=

999mb, 34 knots surface
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#1148 Postby EDR1222 » Sat Aug 27, 2005 11:31 am

She has plenty of time begin strengthening prior to landfall. The environment is going to be about as favorable as it can be according to the NHC.
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#1149 Postby StormsAhead » Sat Aug 27, 2005 11:33 am

There is also an Air Force plane that will be entering the storm soon...its first ob...

Observation #: 01
Time: 16:18Z
Location: 27.8N 87.8W
Altitude: 7190 meters
Flight-level wind: ENE (60°) at 20 knots
Temperature: -14C
Dew Point: -20C
Weather: Scattered Clouds
400mb Height: 7610 meters
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#1150 Postby StormsAhead » Sat Aug 27, 2005 11:35 am

URNT40 KWBC 271600
NOAA3 1312A KATRINA
155030 2337 08609 9943 +0097 315047 +124 +086 315047 040 003
155100 2335 08610 9947 +0104 312045 +118 +089 314046 040 002
155130 2334 08612 9955 +0110 305041 +112 +107 313044 044 005
155200 2333 08613 9954 +0114 309048 +111 +111 309051 038 005
155230 2331 08615 9955 +0125 309050 +112 +111 311051 038 004
155300 2330 08616 9859 +0128 308049 +119 +099 308050 037 003
155330 2328 08618 9866 +0137 305048 +122 +094 306049 038 002
155400 2327 08619 9868 +0147 306047 +118 +096 305047 038 002
155430 2326 08621 9865 +0154 306045 +124 +091 307046 037 002
155500 2324 08622 9869 +0161 306047 +125 +083 305047 037 002
155530 2323 08624 9880 +0170 303045 +128 +067 303046 036 001
155600 2322 08625 9852 +0171 303044 +130 +066 304044 036 002
155630 2320 08627 9857 +0179 302043 +135 +063 303043 036 003
155700 2319 08628 9857 +0185 301043 +131 +079 303044 036 002
155730 2318 08630 9859 +0189 305043 +125 +094 305043 036 002
155800 2316 08632 9861 +0194 303042 +124 +089 303042 035 003
155830 2315 08633 9854 +0203 303041 +121 +073 304041 999 999
155900 2312 08633 9855 +0206 303043 +121 +079 302043 999 999
155930 2311 08630 9853 +0202 300045 +120 +099 299045 033 003
160000 2311 08628 9862 +0196 298044 +125 +062 299045 036 002

URNT40 KWBC 271610
NOAA3 1312A KATRINA
160030 2312 08625 9857 +0189 297043 +124 +082 297044 036 003
160100 2312 08623 9860 +0184 295044 +120 +094 294044 039 002
160130 2313 08620 9861 +0179 295044 +115 +107 294046 038 002
160200 2313 08618 9852 +0173 292046 +117 +109 292048 038 002
160230 2313 08615 9854 +0167 292047 +118 +106 292048 039 003
160300 2314 08612 9854 +0161 293049 +119 +106 293050 040 001
160330 2314 08610 9857 +0155 293050 +121 +096 294050 039 004
160400 2314 08607 9856 +0148 288049 +121 +096 290049 040 005
160430 2315 08605 9855 +0143 289050 +116 +116 288053 041 006
160500 2315 08602 9852 +0132 289052 +122 +086 289052 038 003
160530 2316 08559 9856 +0126 288053 +119 +079 288053 039 003
160600 2316 08557 9854 +0126 286053 +118 +078 285054 042 003
160630 2316 08554 9855 +0118 285055 +118 +076 286055 044 003
160700 2316 08552 9852 +0113 286055 +117 +078 286055 045 004
160730 2316 08549 9859 +0108 285054 +116 +075 285054 045 004
160800 2316 08546 9859 +0106 282053 +119 +078 281054 048 006
160830 2316 08543 9855 +0098 279053 +112 +102 279054 044 009
160900 2316 08541 9856 +0096 280056 +111 +108 279056 999 999
160930 2316 08538 9858 +0092 281057 +112 +111 281057 047 006
161000 2315 08535 9851 +0087 276056 +113 +110 277057 048 006

URNT40 KWBC 271620
NOAA3 1312A KATRINA
161030 2315 08532 9843 +0082 276057 +113 +108 276057 046 005
161100 2315 08530 9854 +0078 275057 +113 +110 274058 048 005
161130 2315 08527 9856 +0076 272058 +118 +100 271058 050 006
161200 2315 08524 9860 +0073 269057 +119 +103 270058 050 007
161230 2315 08522 9850 +0071 269057 +120 +111 270057 048 006
161300 2315 08519 9850 +0069 267057 +122 +107 266058 048 006
161330 2315 08516 9849 +0067 264059 +124 +101 263060 050 007
161400 2315 08513 9850 +0065 260061 +121 +097 259062 052 006
161430 2316 08511 9856 +0063 259061 +118 +099 258062 053 007
161500 2316 08508 9855 +0068 256058 +115 +111 258058 053 008
161530 2317 08505 9852 +0063 256060 +116 +097 258061 050 007
161600 2317 08502 9850 +0060 254060 +116 +109 254061 049 007
161630 2318 08500 9855 +0057 253062 +119 +097 252062 049 007
161700 2318 08457 9854 +0057 252063 +116 +089 252063 050 007
161730 2319 08454 9851 +0059 250063 +112 +091 249064 051 006
161800 2320 08452 9843 +0055 247066 +113 +096 247067 052 008
161830 2320 08449 9865 +0054 240066 +111 +110 239070 054 007
161900 2321 08446 9856 +0056 241068 +110 +110 239070 053 005
161930 2322 08443 9858 +0056 242063 +110 +110 244064 049 004
162000 2322 08441 9859 +0058 238062 +111 +104 238062 048 005

Maximum wind from all of those is 70 knots.
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#1151 Postby StormsAhead » Sat Aug 27, 2005 11:37 am

SXXX50 KNHC 271627
AF306 WX12A KATRINA01 HDOB 06 KNHC
1617 2753N 08754W 07193 0431 056 020 145 197 020 07715 0000000000
1617. 2750N 08753W 07193 0430 053 020 145 197 020 07714 0000000000
1618 2748N 08751W 07194 0430 056 019 145 197 020 07715 0000000000
1618. 2746N 08749W 07194 0430 058 020 145 197 020 07715 0000000000
1619 2744N 08748W 07193 0429 058 021 145 145 021 07713 0000000100
1619. 2742N 08746W 07193 0429 056 022 145 145 022 07714 0000000100
1620 2740N 08744W 07193 0429 053 022 145 145 023 07713 0000000100
1620. 2738N 08743W 07193 0429 051 023 141 141 023 07713 0000000100
1621 2736N 08741W 07194 0427 051 024 141 141 024 07713 0000000100
1621. 2734N 08739W 07193 0427 049 024 141 141 025 07711 0000000100
1622 2732N 08738W 07193 0425 049 025 141 199 026 07710 0000000000
1622. 2730N 08736W 07192 0425 047 026 141 211 026 07709 0000000000
1623 2727N 08734W 07194 0424 048 026 141 213 027 07710 0000000000
1623. 2725N 08733W 07194 0425 050 027 141 213 027 07711 0000000000
1624 2723N 08731W 07194 0425 049 028 141 215 028 07710 0000000000
1624. 2721N 08729W 07192 0424 049 028 141 215 028 07708 0000000000
1625 2719N 08728W 07192 0424 047 028 141 217 028 07708 0000000000
1625. 2717N 08726W 07194 0424 047 027 141 217 027 07710 0000000000
1626 2715N 08724W 07194 0422 046 028 141 217 028 07707 0000000000
1626. 2713N 08723W 07193 0422 047 029 141 217 030 07706 0000000000
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#1152 Postby HurricaneGirl » Sat Aug 27, 2005 11:38 am

Read this on Tropical Update:

The Air Force Reserve Reconnaissance Hurricane Hunters made some interesting observations Saturday morning. Just before 5am, small hail was observed in the southeast quadrant at a height of roughly 8000-9000 feet. Around 11am EDT, concentric eyewalls (meaning two of them, one inside another) were witnessed.

:eek: :eek: :eek: :eek: :eek: :eek: :eek:
Holy Crap!
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#1153 Postby Air Force Met » Sat Aug 27, 2005 11:41 am

Sanibel wrote:Good sign. Pressure rise to 949. Could limit landfall strength.


Landfall is two days away. It's an ERC. Strength ALWAYS goes down during the downside of an ERC.
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#1154 Postby StormsAhead » Sat Aug 27, 2005 11:41 am

URNT40 KWBC 271630
NOAA3 1312A KATRINA
162030 2323 08438 9851 +0061 237062 +112 +106 238062 048 005
162100 2324 08435 9850 +0059 237062 +111 +104 238062 046 005
162130 2324 08432 9853 +0061 236062 +111 +104 236063 046 005
162200 2325 08430 9858 +0064 236062 +112 +111 236063 048 007
162230 2325 08427 9865 +0067 239064 +114 +114 239066 999 999
162300 2326 08424 9884 +0071 233066 +110 +108 233069 999 999
162330 2326 08422 9923 +0077 229063 +106 +105 230065 049 009
162400 2326 08419 9887 +0081 221063 +109 +104 221064 050 009
162430 2327 08416 9887 +0089 220061 +110 +103 221063 047 008
162500 2328 08414 9888 +0097 218059 +116 +101 218060 048 006
162530 2328 08411 9880 +0103 217060 +118 +101 217061 048 007
162600 2329 08409 9884 +0107 216061 +114 +104 216062 050 007
162630 2330 08406 9877 +0111 218064 +115 +101 217067 053 008
162700 2330 08404 9896 +0117 217063 +110 +105 217067 999 999
162730 2331 08401 9899 +0121 216056 +108 +108 216059 053 008
162800 2332 08359 9871 +0130 218058 +108 +107 218060 999 999
162830 2334 08357 9819 +0132 215057 +116 +104 215057 999 999
162900 2336 08357 9816 +0129 211057 +114 +104 212058 999 999
162930 2337 08359 9841 +0113 212058 +120 +101 213060 050 006
163000 2337 08401 9908 +0108 209063 +116 +109 211064 081 008
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#1155 Postby WindRunner » Sat Aug 27, 2005 11:41 am

New plane up now.
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#1156 Postby Steve Cosby » Sat Aug 27, 2005 11:42 am

ALhurricane wrote:What is kind of amazing to me is the fact that the winds never seemed to respond to the 940mb pressure. I really don't have an answer for that one, but it does make me curious.


Actually, could it be the winds did respond but the "X" pattern of the plane just never found them?
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#1157 Postby krysof » Sat Aug 27, 2005 11:43 am

last look showed a larger eye
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#1158 Postby WindRunner » Sat Aug 27, 2005 11:43 am

HurricaneGirl wrote:Read this on Tropical Update:

The Air Force Reserve Reconnaissance Hurricane Hunters made some interesting observations Saturday morning. Just before 5am, small hail was observed in the southeast quadrant at a height of roughly 8000-9000 feet. Around 11am EDT, concentric eyewalls (meaning two of them, one inside another) were witnessed.

:eek: :eek: :eek: :eek: :eek: :eek: :eek:
Holy Crap!


Hmmm, hail, comes with thunderstorms, thunderstorms indicate rapid strengthening/decaying if I remember right, and she sure isn't decaying in the middle of the gulf . . .
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#1159 Postby StormsAhead » Sat Aug 27, 2005 11:44 am

URNT11 KWBC 271558
97779 15584 70232 86508 30000 30042 12073 /3075 43035
RMK NOAA3 1312A KATRINA OB 08 KWBC

Observation #: 08
Time: 15:58Z
Location: 23.2N 86.5W
Altitude: 3000 meters
Flight-level wind: WNW (300°) at 42 knots
Temperature: 12C
Dew Point: 7C
Weather: Overcast
700mb Height: 3075 meters
Surface Wind: WNW (300°) at 35 knots
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#1160 Postby txwatcher91 » Sat Aug 27, 2005 11:45 am

Heres a good loop showing the concentric eyewalls.
http://weather.msfc.nasa.gov/cgi-bin/post-goes
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