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Post by hlsto2 on Aug 13, 2020 9:42:41 GMT -5
when is the FAA going to give training to CWO's on how to observe this phenomena? I'm still trying to figure out the recent hour-long clear-air funnel cloud. METAR KEYW 091853Z 12009KT 10SM FC CLR 33/25 A3010 RMK AO2 LTG DSNT W SLP192 T03280250 SPECI KEYW 091754Z 12008KT 10SM FC CLR 33/26 A3012 RMK AO2 T03280256 METAR KEYW 091753Z 11007KT 10SM FC FEW032 33/26 A3012 RMK FUNNEL CLOUD B53 AO2 SLP199 T03280256 10328 20294 58001 I was stationed at EYW (NWS) for two years and never saw a funnel or waterspout forming in clear air. the only clear air phenomena I ever saw was dust devils in texas and NM.
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Post by tornado on Sept 10, 2020 11:15:05 GMT -5
Pompano Beach, Florida: SPECI KPMP 090113Z AUTO 12009KT 1 1/2SM +RA BR FEW021 OVC026 25/24 A2992 RMK AO2 LTG DSNT N TSB0059E13 P0045 T02500239
ALDARS ended the thunderstorm at 14 minutes.
Wilmington, North Carolina: SPECI KILM 161935Z 03008KT 8SM -RA BKN028 BKN038 OVC055 26/23 A3005 RMK AO2 RAB30 TSB1858E13B15E22 P0000 T02560228
There was either a 2-minute ALDARS outage, or a glitch with a 7-minute thunderstorm reported.
Lawton, Oklahoma: METAR KLAW 090153Z AUTO 04012KT 1 3/4SM TSRA BR BKN028 BKN048 OVC090 16/15 A2994 RMK AO2 PK WND 36033/0056 WSHFT 0055 LTG DSNT ALQDS TSB07E16E31B33 SLP130 P0100 T01610150 SPECI KLAW 090124Z AUTO 27007KT 1SM +TSRA BR SCT008 BKN015 OVC035 16/14 A2996 RMK AO2 PK WND 36033/0056 WSHFT 0055 LTG DSNT ALQDS TSB07E16 P0053 T01560144
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Post by tornado on Oct 5, 2020 12:12:42 GMT -5
Fort Lauderdale Executive Airport, Florida: METAR KFXE 162353Z AUTO 32003KT 6SM RA BR FEW012 OVC110 24/24 A3002 RMK AO2 SLP169 P0012 60046 T02440239 10294 20233 53021 TSNO METAR KFXE 162253Z AUTO 00000KT 4SM RA BR BKN090 OVC110 24/23 A3000 RMK AO2 SLP162 P0017 T02390233 TSNO SPECI KFXE 162200Z 00000KT 4SM +TSRA BR BKN095 OVC110 24/23 A2998 RMK AO2 P0002 T02390233
When did the thunderstorm end? Conditions went from +TSRA to TSNO (ALDARS outage).
Fort Pierce, Florida: METAR KFPR 191748Z 35004KT 2 1/2SM VCTS +RA BR BKN025 BKN030 OVC055 22/22 A3001 RMK AO2 TSB12E27B31E42 SLP161 P0013 60029 T02220222 10278 20217 58008 SPECI KFPR 191747Z 34004KT 2 1/2SM VCTS +RA BR BKN025 BKN030 OVC055 22/22 A3001 RMK AO2 TSB12E27B31E42 P0013
The 2nd thunderstorm lasted only 11 minutes.
Southwest Florida International Airport, Fort Myers, Florida: SPECI KRSW 042019Z 04005KT 10SM VCTS -RA BKN036 BKN055 25/24 A2990 RMK AO2 TSE13 P0000 T02500244 METAR KRSW 041953Z 01005KT 10SM -RA FEW043 SCT060 BKN110 25/24 A2989 RMK AO2 LTG DSNT SE SLP120 P0003 T02500244
ALDARS put TSE13 when it meant TSB13.
Burke Lakefront Airport, Cleveland, Ohio: METAR KBKL 012353Z 19008KT 5SM RA FEW017 BKN031 OVC041 11/07 A2998 RMK AO2 RAB2255 TSB39E50 SLP161 P0023 60032 T01060072 10156 20106 53020 $ SPECI KBKL 012341Z 21015G22KT 3SM +TSRA FEW020 BKN025 OVC041 11/07 A2995 RMK AO2 RAB2255 TSB39 TS OHD MOV E P0014 T01110072 $
An 11-minute thunderstorm was recorded.
Ohio State University Airport, Columbus, Ohio: SPECI KOSU 130201Z 27024G34KT 2SM TSRA BR FEW015 OVC032 20/18 A2980 RMK AO2 PK WND 29034/0201 LTG DSNT ALQDS RAB0156 TSB0158 PRESRR P0012 T02000183 METAR KOSU 130153Z AUTO 17007KT 10SM VCTS OVC033 21/18 A2976 RMK AO2 LTG DSNT ALQDS RAB24E41 TSE44 SLP071 P0001 T02060183 SPECI KOSU 130150Z AUTO 17007KT 10SM VCTS OVC033 21/18 A2976 RMK AO2 LTG DSNT SW-N RAB24E41 TSE44 P0001 METAR KOSU 130053Z 18007KT 10SM OVC037 22/17 A2976 RMK AO2 SLP071 T02170172
LAWRS signed off ASOS during a thunderstorm. ALDARS proceeded to report TSE44 when it meant TSB44.
Boeing Field, Seattle, Washington: METAR KBFI 131553Z 16014KT 10SM -RA BKN009 OVC020 13/12 A2973 RMK AO2 TSE1454 SLP066 P0000 T01330117 SPECI KBFI 131456Z 15007KT 5SM -RA BR BKN011 OVC018 12/10 A2974 RMK AO2 TSE54 P0000 T01170100 METAR KBFI 131453Z 12006KT 5SM TSRA BR SCT006 BKN009 OVC011 11/10 A2974 RMK AO2 TSB51 SLP070 P0009 60025 T01110100 55031 SPECI KBFI 131426Z 31003KT 3SM RA BR SCT006 BKN009 OVC011 11/09 A2974 RMK AO2 P0003 T01060094
A 3-minute thunderstorm was recorded.
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Post by hlsto2 on Nov 1, 2020 20:03:57 GMT -5
ALDARS is confused about TS begin and end times.
020053Z 01011KT 1 1/4SM R35L/6000VP6000FT +TSRA BR BKN016 OVC030CB 23/23 A3006 RMK AO2 TWR VIS 2 RAB20 TSE04B06B10 SLP177 OCNL LTGICCG ALQDS TS ALQDS MOV SE P0075 T02330228 $ 020048Z 01011KT 1 1/4SM R35L/6000VP6000FT +TSRA BR BKN018 OVC034CB 23/23 A3006 RMK AO2 TWR VIS 2 RAB20 TSE04B06B10 OCNL LTGICCG ALQDS TS ALQDS MOV SE P0062 $ 020032Z 35008KT 1 1/4SM R35L/5000VP6000FT +TSRA BR SCT018 BKN034CB OVC049 24/23 A3005 RMK AO2 TWR VIS 2 RAB20 TSE04B06B10 OCNL LTGICCG W-N TS W-N MOV SE P0012 T02390228 $ 020006Z 13003KT 10SM TS FEW045CB OVC065 24/22 A3003 RMK AO2 LTG DSNT N TSE04B06 OCNL LTGICCG W-N TS W-N MOV SE T02440222 $
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Post by tornado on Nov 19, 2020 9:12:07 GMT -5
Montgomery, Alabama:METAR KMGM 280153Z 04005KT 7SM -RA FEW055 BKN075 OVC110 18/17 A3005 RMK AO2 WSHFT 0059 TSE0054E07E17 SLP175 P0096 T01830167 $ ALDARS had 3 consecutive TSE times, with no intervening TSE times. Pascagoula, Mississippi: SPECI KPQL 270325Z AUTO 25003KT 6SM VCTS -RA BR 21/19 A3010 RMK AO2 LTG DSNT E RAB13 TSE06E19 P0018 T02060189 $ SPECI KPQL 270316Z AUTO 00000KT 5SM -TSRA BR 21/19 A3010 RMK AO2 LTG DSNT E RAB13 TSE06 P0017 T02060189 $
A thunderstorm (TS) was ended a 2nd time, with no intervening TSB time (the sky condition was also missing). TSE06 wasn't accurate either, as TS still appeared in present weather at 0316Z.
Renton, Washington: METAR KRNT 180253Z 12005KT 7SM -RA FEW032 BKN047 OVC055 09/08 A2953 RMK AO2 LTG DSNT NE RAB0156 TSB07 SLP004 P0018 60018 T00940083 53021 SPECI KRNT 180228Z 19007KT 140V270 4SM -RA BR FEW021 BKN032 OVC055 09/08 A2953 RMK AO2 RAB0156 TSB07 P0015 T00940078 SPECI KRNT 180217Z 19010G19KT 3SM TSRA BR FEW023 BKN047 OVC055 09/07 A2952 RMK AO2 RAB0156 TSB07 P0012 T00940072
ALDARS did not record a TSE time.
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Post by tornado on Jan 7, 2021 13:08:42 GMT -5
South Bend, Indiana: SPECI KSBN 200452Z 34007KT 1SM R27L/3500VP6000FT -SN BR FEW005 OVC012 M02/M03 A3005 RMK AO2 WSHFT 0406 P0006 SPECI KSBN 200440Z 33011KT 3/4SM R27L/4500VP6000FT VCTS -SN BR VV007 M02/M04 A3004 RMK AO2 WSHFT 0406 P0005 T10171039 SPECI KSBN 200433Z 35014KT 3/4SM R27L/4000VP6000FT -SN BR FEW004 OVC008 M02/M04 A3004 RMK AO2 WSHFT 0406 P0004 T10171039
VCTS was reported for only 12 minutes.
Lakefront Airport, New Orleans, Louisiana: METAR KNEW 070753Z AUTO 11008KT 2 1/2SM VCTS +RA BR BKN031 OVC038 16/14 A2986 RMK AO2 PK WND 12026/0654 LTG DSNT ALQDS TSB0656E11B14B35E50 SLP104 P0032 T0161013
Thunderstorm began twice, with no intervening ending time.
Jackson-Medgar Wiley Evers International Airport, Jackson, Mississippi: SPECI KJAN 071120Z AUTO 22006KT 2SM +RA BR BKN010 OVC014 09/08 A2980 RMK AO2 VIS 1 1/2V5 LTG DSNT N RAB08 TSE05 CIG 007V013 P0003 T00940078 $ SPECI KJAN 071111Z AUTO 23009KT 9SM VCTS -RA OVC014 09/07 A2980 RMK AO2 RAB08 TSE05 PRESRR P0000 T00940072 $ METAR KJAN 071054Z AUTO 12011KT 10SM OVC014 09/07 A2977 RMK AO2 RAE0958 SLP081 P0000 T00890072 $
While the part-time CWO was closed overnight, ALDARS put TSE05 when it meant TSB05. VCTS was only reported for 9 minutes. No true TS ending time was recorded.
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Post by tornado on Jan 25, 2021 10:39:07 GMT -5
Northwest Florida Beaches International Airport, Panama City, Florida: METAR KECP 261553Z 16009KT 3SM VCTS BR OVC003 21/21 A2995 RMK AO2 LTG DSNT NE AND W TSB18E20 SLP152 T02110206 METAR KECP 261453Z 17013KT 1SM R16/P6000FT VCTS BR OVC004 21/20 A2992 RMK AO2 LTG DSNT W-NE SLP143 T02060200 51014
In the middle of VCTS, a 2-minute TS was recorded.
Hutchinson, Kansas: SPECI KHUT 250755Z AUTO 02005KT 2 1/2SM VCTS +RA BR FEW004 BKN043 OVC055 01/M01 A2977 RMK AO2 TSE55 P0001 I1000 T00111006 METAR KHUT 250752Z AUTO 06007KT 3SM RA BR FEW036 BKN044 OVC055 01/M01 A2977 RMK AO2 LTG DSNT SE UPB08E09RAB39FZRAE0658B09E39 SLP085 P0015 I1005 T00111011
ALDARS put TSE55 when it meant TSB55.
Fayetteville, North Carolina: METAR KFAY 261053Z 04007KT 10SM BKN004 OVC013 08/07 A2986 RMK AO2 LTG DSNT NW-E RAB11E51 TSB10 SLP108 P0015 T00780072 SPECI KFAY 261031Z 02010KT 5SM -RA BR BKN003 OVC012 08/07 A2988 RMK AO2 LTG DSNT NW-E RAB11 TSB10 P0014 T00780072 SPECI KFAY 261023Z 03010KT 2 1/2SM TSRA BR BKN003 OVC011 08/07 A2987 RMK AO2 VIS 1 1/2V4 LTG DSNT N AND NE RAB11 TSB10 P0013 T00780072
ALDARS did not include a TSE time.
McKinney, Texas: SPECI KTKI 242113Z 10005KT 3SM -RA OVC003 14/13 A2986 RMK AO2 LTG DSNT NE-S P0005 T01390133 METAR KTKI 242053Z 06006KT 3SM VCTS RA OVC003 14/13 A2985 RMK AO2 LTG DSNT S AND SW RAB52 TSB51E52 SLP115 P0000 60000 T01390128 55024 SPECI KTKI 242051Z 04006KT 6SM TS BR OVC003 13/13 A2985 RMK AO2 LTG DSNT S AND SW TSB51 METAR KTKI 241953Z 07007KT 4SM BR OVC002 13/12 A2986 RMK AO2 RAB25E34 SLP118 P0000 T01330122
A 1-minute thunderstorm (TS) was recorded.
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Post by hlsto2 on Jan 27, 2021 13:18:52 GMT -5
ALDARS and independent professional lightning program both reported the distant lightning...however the lightning program reported THREE strikes between 5 and 10 miles of the ap. why didn't ALDARS report VCTS?
271753Z 29007KT 3SM -RA BR OVC010 21/21 A2998 RMK AO2 SLP151 VIS 1/2V1 P0089 60120 T02060206 10228 20200 58004 271748Z 31006KT 3SM -RA BR OVC010 21/21 A2998 RMK AO2 VIS 1/2V1 P0089 271718Z 28015KT 3/4SM +RA BR BKN011 OVC030 21/21 A2999 RMK AO2 LTG DSNT NE AND E P0024 T02060206 271715Z 28011G19KT 3SM -RA BR BKN010 OVC034 21/21 A2999 RMK AO2 LTG DSNT NE AND E VIS W AND N 1 P0024 T02060206 271708Z 28015KT 2SM -RA BR BKN006 OVC025 21/21 A2999 RMK AO2 LTG DSNT NE AND E P0022 T02060206 271658Z 32015G25KT 1SM RA BKN007 OVC020 20/20 A2998 RMK AO2 P0007 T02000200 271653Z 32015G25KT 3/4SM +RA OVC007 21/21 A3000 RMK AO2 PK WND 23041/1643 RAB26 SLP157 P0031 T02060206
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Post by alstein on Jan 27, 2021 15:00:28 GMT -5
Not sure if proper spot, but Tallahassee has tornado damage at their airport recently, and a lot of erroneous observations in the time frame.
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Post by hlsto2 on Feb 5, 2021 12:07:46 GMT -5
Not sure if proper spot, but Tallahassee has tornado damage at their airport recently, and a lot of erroneous observations in the time frame. this should have been in a PM...along with evidence
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Post by hlsto2 on Feb 5, 2021 12:11:26 GMT -5
numerous lightning strikes within 10 miles of this ap...reported by several independent lightning programs...but not by ALDARS. ALDARS turned off?
051653Z 08007KT 10SM BKN050 BKN075 11/03 A2998 RMK AO2 RAE26 SLP152 P0001 T01060033 051553Z 06008KT 9SM RA BKN060 OVC080 09/03 A3001 RMK AO2 RAB37 SLP163 P0001 T00940028
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Post by hlsto2 on Feb 11, 2021 17:02:29 GMT -5
ALDARS reports lightning only beyond 10 miles....but another lightning program showed a number of strikes 8-10 miles northeast of the ap. who do you trust?
112153Z 35012KT 3SM -RA BR OVC009 06/04 A3000 RMK AO2 LTG DSNT N RAB32 SLP165 P0033 T00560039
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Post by hlsto2 on Mar 2, 2021 12:32:57 GMT -5
professional independent lightning program showed the closest ltg 15 miles from the ap. program also showed the distant lightning.
021719Z 36011G15KT 1 1/2SM +RA BR OVC007 11/09 A3013 RMK AO2 LTG DSNT E P0006 T01060089 021708Z 02008KT 2SM VCTS +RA BR OVC007 11/09 A3013 RMK AO2 P0002 T01060089 021653Z 02011G17KT 2SM RA BR OVC008 11/09 A3013 RMK AO2 CIG 006V012 SLP207 P0002 T01060089
a few min later ALDARS and the ltg program detected ltg within 5 miles of the ap. so...THIS TIME they agreed.
021728Z 03007KT 2SM TSRA BR OVC006CB 10/09 A3014 RMK AO2 LTG DSNT E TSB28 OCNL LTGIC OHD TS OHD MOV E P0011 T01000089
IMHO...ALDARS is not always as accurate as the FA and A would have us believe.
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Post by tornado on Mar 4, 2021 9:42:44 GMT -5
Ramona, California: SPECI KRNM 032217Z VRB04KT 8SM +RA SCT045 BKN055 OVC085 07/ A2987 RMK AO2 LTG DSNT S RAE2124B2128B03 TSB2140E2150E12 P0009 T0072 $ SPECI KRNM 032158Z 33004KT 8SM TS SCT045 BKN055 OVC085 07/ A2986 RMK AO2 RAE24B28 TSB40E50 P0001 T0072 $ SPECI KRNM 032146Z 34006KT 9SM -TSRA SCT031 SCT050 OVC080 08/07 A2984 RMK AO2 RAE24B28 TSB40 P0001 T00830067
TSE50 couldn’t have been right, as the thunderstorm was still recorded in present weather. Nor could it have ended after 10 minutes, by rule.
Northeast Florida Regional Airport, St Augustine, Florida:TS criteria was met at 1006Z. ALDARS continued to report VCTS: SPECI KSGJ 031012Z AUTO 18010KT 10SM VCTS BKN005 OVC060 16/15 A2981 RMK AO2 LTG DSNT SW TSB02RAE00 CIG 002V008 P0000 $ SPECI KSGJ 031020Z AUTO 19009KT 10SM VCTS BKN003 OVC050 16/16 A2980 RMK AO2 TSB02RAE00 CIG 002V008 P0000 $ SPECI KSGJ 031029Z AUTO 20009KT 10SM VCTS BKN005 OVC047 17/17 A2980 RMK AO2 LTG DSNT E TSB02RAE00 CIG 003V007 P0000 $ La Crosse, Wisconsin:SPECI KLSE 110225Z 20014KT 10SM FEW055 SCT075 SCT090 14/11 A2952 RMK AO2 PK WND 20030/0210 LTG DSNT NE AND E RAE18 TSB08E09E20 P0000 T01440106 METAR KLSE 110153Z 17019G30KT 10SM VCTS -RA FEW041 BKN065 OVC110 16/11 A2951 RMK AO2 PK WND 16030/0153 LTG DSNT S AND SW RAB0059 SLP991 TS SW MOV E P0003 T01560111 There were no SPECIs to indicate a thunderstorm began at 0108Z. More likely ALDARS botched the ending time of the VCTS; obviously, the TSB/E group was incorrect.
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Post by tornado on Mar 17, 2021 11:45:42 GMT -5
Birmingham, Alabama: SPECI KBHM 171108Z 11007KT 2SM VCTS +RA BR BKN002 BKN026 OVC090 15/14 A2999 RMK AO2 SFC VIS 5 RAB1058 TSE05 P0013 T01500139 SPECI KBHM 171100Z 14005KT 1 1/2SM RA BR OVC002 14/13 A2999 RMK AO2 RAB1058 P0000 T01440133
CWOs are told not to change ALDARS data, even when ALDARS clearly gets it wrong. One would hope that a site under a PDS tornado watch would get better results from ALDARS.
Tuscaloosa, Alabama: SPECI KTCL 172004Z 16003KT 1SM +TSRA BR SCT013 BKN040 OVC050 21/19 A2981 RMK AO2 LTG DSNT ALQDS TSE1955 P0015 T02110194 SPECI KTCL 171938Z VRB06KT 2SM VCTS +RA BR BKN014 BKN021 OVC029 22/21 A2981 RMK AO2 LTG DSNT ALQDS RAB13 P0005 T02220211
Thunderstorm moved within 5 miles of TCL, ALDARS claimed it ended at 1955Z. City under a tornado warning that hour:
New Century Aircenter, Olathe, Kansas: SPECI KIXD 171102Z 01012KT 3SM +RA BR FEW008 SCT036 OVC044 06/04 A2982 RMK AO2 LTG DSNT ALQDS P0005 T00610044 METAR KIXD 171053Z 02008KT 3SM +TSRA BR SCT006 BKN039 OVC047 06/04 A2981 RMK AO2 PK WND 01026/0957 WSHFT 0953 LTG DSNT ALQDS TSB15E30B41 SLP097 P0021 T00610044
ALDARS did not record a TSE time. Joplin, Missouri:SPECI KJLN 172220Z 03017G26KT 10SM -TSRA OVC005 11/09 A2949 RMK AO2 PK WND 02031/2209 LTG DSNT ALQDS RAE2158B20 TSE16B20 TS OHD MOV NE P0000 T01060094 $ METAR KJLN 172153Z 02017G24KT 10SM -RA OVC006 11/10 A2950 RMK AO2 LTG DSNT SE-W SLP985 P0001 T01110100 $ TSE16 was incorrect.
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