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Post by tornado on Feb 17, 2017 11:03:10 GMT -5
Lehigh Valley International Airport, Allentown-Bethlehem, Pennsylvania:
SPECI KABE 162107Z 30011G19KT 10SM TS OVC055 02/M11 A2969
RMK AO2 TSB07 T00221106
SPECI KABE 162114Z 30011G19KT 10SM OVC050 02/M10 A2969 RMK
AO2 TSB07E08 T00221100
METAR KABE 162151Z 30012G21KT 10SM OVC050 02/M11 A2970 RMK
AO2 TSB07E08 SLP063 T00171106
If that was an ALDARS glitch, there were 2 unnecessary SPECIs because of it.
Abilene, Texas:
SPECI KABI 140507Z 04013KT 3SM +RA BR BKN004 OVC055 04/04
A3000 RMK AO2 WSHFT 0448 PRESFR FQNT LTGICCCCG
TS ALL QDTS MOV NE P0005 T00390039
SPECI KABI 140515Z 02012KT 4SM +RA BR SCT004 BKN040 OVC060
04/04 A3000 RMK AO2 WSHFT 0455 FQNT LTGICCCCG
TS ALL QDTS MOV NE P0008 T00390039
SPECI KABI 140540Z 02009G15KT 3SM RA BR BKN004 OVC036 04/04
A3001 RMK AO2 WSHFT 0455 FQNT LTGICCCCG TS ALL
QDTS MOV NE P0022 T00390039
METAR KABI 140552Z 01007KT 4SM RA BR OVC004 04/04 A3000 RMK
AO2 WSHFT 0455 SLP159 FQNT LTGICCCCG TS ALL QDTS
MOV NE P0027 60048 T00390039 10050 20033 401000033
58016
Did ALDARS fail, leaving LAWRS to enter thunderstorm data? If ALDARS had worked properly, it would
have inserted TS or VCTS into present weather. There also should have been LTG DSNT remarks:
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Post by tornado on Feb 23, 2017 14:21:51 GMT -5
Key West, Florida:
SPECI KEYW 221402Z 21012G24KT 1 1/4SM +RA BR SCT024 BKN044
OVC070 22/21 A2979 RMK AO2 LTG DSNT N P0008 T02220206
SPECI KEYW 221413Z 22012G21KT 3/4SM VCTS +RA BR SCT024 BKN044
OVC070 21/19 A2979 RMK AO2 P0029 T02110189
SPECI KEYW 221423Z 26010KT 220V280 1/2SM +RA FG SCT024 BKN044
OVC070 21/20 A2980 RMK AO2 P0062 T02110200
According to the above reports, which were transmitted consecutively; a thunderstorm
in the vicinity lasted from 1413-1423Z. That didn't meet the minimum requirement
of a thunderstorm lasting at least 15 minutes.
Leesburg, Florida:
METAR KLEE 221253Z 10006KT 10SM FEW028 SCT033 OVC085 20/17
A2982 RMK AO2 SLP098 T02000167
SPECI KLEE 221310Z 13006KT 5SM VCTS -RA SCT030 BKN050 OVC085
20/17 A2982 RMK AO2 RAB04 P0002 T02000167
SPECI KLEE 221314Z 17008KT 1 3/4SM VCTS +RA BR FEW020 BKN037
OVC085 19/17 A2983 RMK AO2 RAB04 P0009 T01940172
SPECI KLEE 221319Z 21010KT 3/4SM +RA BR FEW018 BKN027 OVC085
19/17 A2983 RMK AO2 RAB04 P0020 T01940172
According to the above reports, which were transmitted consecutively; a thunderstorm
in the vicinity lasted from 1310Z-1319Z. That didn't meet the minimum requirement
of a thunderstorm lasting at least 15 minutes.
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Post by tornado on Feb 24, 2017 12:07:32 GMT -5
Lafayette, Indiana:SPECI KLAF 241701Z 21014G25KT 10SM SCT030 19/13 A2948 RMK AO2 T01940133 SPECI KLAF 24 1743Z 19012G19KT 160V220 10SM VCTS -RA BKN032 BKN049 OVC110 18/13 A2946 RMK AO2 PK WND 19030/1703 LTG DSNT NE AND SW RAB34 PRESFR P0000 T01830133 METAR KLAF 24 1754Z 22011G25KT 10SM BKN032 19/13 A2948 RMK AO2 PK WND 19030/1703 LTG DSNT NE RAB34E54 SLP982 P0000 60000 T01890133 10194 20156 55006 The time of duration of the VCTS, was 11 minutes.South Bend, Indiana:
SPECI KSBN 241309Z 18014KT 9SM -TSRA SCT024 BKN030 OVC080
14/13 A2950 RMK AO2 LTG DSNT ALQDS TSB02E06 PRESFR
P0002 T01440128
SPECI KSBN 241334Z 16017G24KT 10SM FEW048 FEW085 14/12 A2944
RMK AO2 LTG DSNT NE AND SE RAE25 TSB02E06E28 PRESFR
P0005 T01440122
A 4-minute thunderstorm, ended again later without restarting. Of course, it hadn't actually ended by 1309Z, as TS still appeared in present weather.
Saginaw, Michigan:
SPECI KMBS 241509Z 07010KT 1SM R23/6000VP6000FT TS OVC005
02/02 A2964 RMK AO2 LTG DSNT ALQDS RAE03 TSB03
LTG ICCG P0006 T00220022
SPECI KMBS 241528Z 08015KT 2SM VCTS RA BR BKN005 OVC012 02/02
A2957 RMK AO2 LTG DSNT N AND SE RAE03B28 TSB03
PRESFR LTG ICCG P0012 T00220022
SPECI KMBS 241531Z 07016KT 3SM VCTS -RA BR BKN004 OVC012
02/02 A2956 RMK AO2 LTG DSNT N AND SE RAE03B28
TSB03 PRESFR LTG ICCG P0012 T00220022
SPECI KMBS 241540Z 02011KT 5SM -RA BR OVC004 03/02 A2960
RMK AO2 LTG DSNT N AND NE RAE03B28 TSB03 LTG ICCG
P0013 T00280022
SPECI KMBS 241550Z 02008KT 10SM OVC004 03/03 A2962 RMK AO2
WSHFT 1530 LTG DSNT N AND NE RAE03B28E49 TSB03
LTG ICCG P0013
METAR KMBS 241553Z 03009KT 10SM OVC004 03/03 A2961 RMK AO2
WSHFT 1530 RAE03B28E49 TSB03 SLP032 LTG ICCG P0013
T00280028
A thunderstorm began at 1503Z (with thunder alone causing the visibility to be 1SM, as reported at 1509Z).
But when did the thunderstorm end? It disappeared from present weather as of the 1540Z SPECI. Yet, LAWRS
kept the lightning remark in place, through the 1553Z METAR. Had the thunderstorm ended or not? How much of a role did ALDARS play in this mess?
Lincoln, Nebraska:METAR KLNK 240254Z 35015KT 4SM VCTS -SN BR BKN010 OVC013 01/00 A2963 RMK AO2 LTG DSNT NE-S RAE47SNB47 TSB03E25E45 SLP043 P0018 60026 T00060000 53013 Another thunderstorm ended twice- even though one was still within 10 miles of the airport.Atlantic City, New Jersey:SPECI KACY 252337Z 27011G20KT 2 1/2SM +TSRA BR SCT011 BKN018 OVC080 14/13 A2956 RMK AO2 SFC VIS 4 LTG DSNT N AND S RAB10 TSB14 P0015 T01440128 METAR KACY 252354Z 30018G26KT 10SM SCT011 BKN029 OVC039 12/09 A2958 RMK AO2 PK WND 30032/2341 LTG DSNT S RAB10E53 TSB14 SLP017 P0015 60015 T01220094 10183 20122 53025 ALDARS skipped the thunderstorm ending time.Rome, New York:METAR KRME 251753Z 17013KT 10SM -RA SCT037 BKN047 OVC065 18/13 A2942 RMK AO2 RAB29 SLP959 P0002 60002 T01780128 10183 20150 58033 SPECI KRME 25 1813Z 17016G27KT 3SM VCTS -RA SCT049 SCT060 OVC080 17/13 A2941 RMK AO2 PK WND 20029/1803 LTG DSNT W AND NW P0003 T01670133 SPECI KRME 25 1824Z 27019G29KT 7SM -RA FEW022 BKN055 OVC075 16/13 A2945 RMK AO2 PK WND 27029/1824 WSHFT 1810 LTG DSNT N PRESRR P0004 T01610133 At some sites, ALDARS is configured to provide TSB/TSE times, with VCTS. With most sites,
that is not the case; and users are left with the times of the reports to determine how long the
VCTS was in progress. In the case above, a VCTS began at 1813Z, and ended at 1824Z. That
did not meet the minimum requirement that a thunderstorm last 15 minutes, by rule.Smyrna, Tennessee:METAR KMQY 250356Z 17003KT 10SM TS BKN050 OVC060 17/14 A2969 RMK AO2 LTG DSNT W-N TSB31E45B56RAB0257E20 SLP937 P0000 T01670144 ALDARS recorded a 14-minute thunderstorm.Tri-State Airport, Huntington, West Virginia: METAR KHTS 250851Z 30013G28KT 5SM +TSRA BKN018 BKN026 OVC060 11/07 A2964 RMK AO2 PK WND 29028/0847 SLP030 P0019 60062 T01060067 51022 SPECI KHTS 250917Z AUTO 32009G16KT 5SM RA FEW017 BKN044 OVC070 09/06 A2964 RMK AO2 P0012 T00940061 TSNOMETAR KHTS 250951Z 31005KT 5SM RA BR BKN027 BKN044 OVC060 09/07 A2966 RMK AO2 SLP037 P0018 T00890067 The thunderstorm ended... we don't know when, because of a likely ALDARS glitch (TSNO).
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Post by hlsto2 on Feb 26, 2017 21:36:03 GMT -5
a TS that never began...ends
270230Z 00000KT 9SM VCTS FEW080CB BKN110 OVC180 15/12 A2990 RMK AO2 LTG DSNT S AND SW RAE01 TSE24 CB DSNT S AND SW MOV E P0000 T01500117
270153Z 11003KT 8SM -RA FEW060 BKN100 OVC170 14/12 A2988 RMK AO2 RAB07 SLP120 P0000 T01440117
270053Z 00000KT 10SM OVC170 16/11 A2989 RMK AO2 SLP122 T01560111
and then...ALDARS cranks out a 2 minute TS...
270253Z 17008KT 10SM FEW080CB BKN110 OVC180 15/13 A2990 RMK AO2 LTG DSNT SE RAE01B34E46 TSE24B43E45 SLP124 CB SE MOV E P0000 60000 T01500128 53003
270230Z 00000KT 9SM VCTS FEW080CB BKN110 OVC180 15/12 A2990 RMK AO2 LTG DSNT S AND SW RAE01 TSE24 CB DSNT S AND SW MOV E P0000 T01500117
another 2 minute TS
270406Z 00000KT 10SM FEW022 BKN028 OVC035 15/13 A2991 RMK AO2 LTG DSNT NE AND E TSB03E05 OCNL LTG DSNT NE-E T01500128
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Post by hlsto2 on Feb 27, 2017 12:00:58 GMT -5
(2) Reporting Thunderstorms. At sites with automated systems with SPECI capability, entry or deletion of a thunderstorm report must be made by the observer or an automated sensor. The event will continue to be reported automatically until the observer or ALDARS deletes the entry. A SPECI observation is generated automatically for the beginning and ending times of thunderstorms. A thunderstorm occurrence begins when thunder is first heard, when lightning is observed at the station and the local noise level is sufficient to prevent hearing thunder, or when lightning is detected by an automated sensor within ten miles of the airport. Location and direction of movement of the thunderstorm and the location, type, and frequency of lightning must be reported, if known. LAWRS personnel are only required to annotate the beginning/ending times of thunderstorms.
this is page 38 5.6.b.2 of the new 7900.5D 12/20/16. note that it states when lightning detected by an automated sensor within 10 miles of the ap. ALDARS used NM. so does the paragraph mean NM or SM? FAA needs to get with their ALDARS vendor and get ALDARS changed to SM to fit our requirements of reporting distances of SM
also, to be fair, we should not have to enter manual ltg/TS remarks as LAWRS are NOT required to ref the last sentence. but, then again, that would give the FAA more fuel to claim LAWRS is equal to a CWO.
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Post by hlsto2 on Feb 27, 2017 12:09:49 GMT -5
10.29. Beginning and/or Ending of a Thunderstorm. A thunderstorm is considered to begin at the station when thunder is heard, overhead lightning is observed and the local noise level is such as might prevent hearing thunder, or lightning is detected by an automated sensor within 10 miles of the airport. A thunderstorm is considered to have ended 15 minutes after the last occurrence of any of the above criteria. When the time of beginning or ending of a thunderstorm is reported in the remarks section of a SPECI observation, it need not be reported again until the next transmitted METAR observation if not previously reported in a METAR observation. If previously reported in a METAR observation, the time need not be reported again.
this paragraph also says 10 miles when referring to an automated sensor...LAWRS
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Post by hlsto2 on Feb 27, 2017 12:16:19 GMT -5
b. When lightning is detected by an automated weather observing system with ALDARS:
(1) Within 5 nautical miles of the Airport Reference Point (ARP), it will be reported as "TS" in the body of the report with no remark;
(2) Between 5 and 10 miles of the ARP, it will be reported as "VCTS" in the body of the report with no remark;
(3) Beyond 10 but less than 30 nautical miles of the ARP, it will be reported in remarks as "DSNT" followed by the direction from the ARP.
14.29.b. only here is nautical miles used...
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Post by tornado on Feb 28, 2017 13:21:44 GMT -5
Bloomington / Normal, Illinois:
METAR KBMI 280756Z AUTO 15011KT 10SM -RA FEW020 BKN027 OVC042
09/07 A2994 RMK AO2 TSB15E41B43E56RAB32 SLP166
P0004 T00890072
METAR KBMI 280856Z AUTO 15011KT 10SM OVC018 08/07 A2990 RMK
AO2 WSHFT 0746 TSB0757E04RAE25 SLP153 P0000 60016
T00830072 58012
ALDARS recorded a 13-minute thunderstorm one hour,
then a 7-minute thunderstorm the next hour. Owensboro, Kentucky:METAR KOWB 281156Z 17008KT 5SM TSRA BR BKN016 11/10 A3001 RMK AO2 LTG DSNT ALQDS TSB1058E09B11E16B18E23B25E34B35RAB26 SLP176 6//// 7//// T01110100 10117 20106 55022
Thunderstorms lasted:
- 11 minutes
- 5 minutes
- 5 minutes
- 9 minutes
Smyrna, Tennessee:SPECI KMQY 281342Z 18010KT 3SM -TSRA BR OVC013CB 14/12 A3012 RMK AO2 LTG DSNT N TSB41RAB15 OCNL LTGICCC TS OHD MOV NE P0002 METAR KMQY 281356Z 17008KT 10SM BKN013 BKN033 OVC070 14/13 A3011 RMK AO2 LTG DSNT W TSB41E53RAB15E56 SLP142 TSE MOV NE P0002 T01390128 ALDARS recorded a 12-minute thunderstorm. |
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Post by tornado on Feb 28, 2017 23:26:35 GMT -5
Carbondale, Illinois:
SPECI KMDH 010223Z 19014G26KT 9SM TS BKN020 BKN025 BKN033
21/19 A2971 RMK AO2 PK WND 18026/0214 LTG DSNT
E AND W AND NW TSB23 T02110189
SPECI KMDH 010255Z AUTO 21018KT -TSRA 21/19 A2970 RMK AO2
LTG DSNT ALQDS RAB29B52 TSB23 T02060189 PNO $
SPECI KMDH 010323Z AUTO 20020G29KT 10SM VCTS BKN022 BKN027
OVC038 21/19 A2970 RMK AO2 PK WND 19029/0321 LTG
DSNT N-E RAB0229B0252E17 TSB0223E07B08E23 T02060189 $
ALDARS wasn't supposed to include TSB0223, past the METAR... except that the METAR
was missing.
Sterling-Rock Falls, Illinois:
SPECI KSQI 010144Z AUTO 13006KT 10SM VCTS CLR 12/11 A2952
RMK AO2 LTG DSNT N AND NW TSE04B06E09B33RAE17
P0000
ALDARS included a 3-minute thunderstorm.
Bowman Field Airport, Louisville, Kentucky:
METAR KLOU 282053Z 19009KT 10SM -TSRA OVC020 18/15 A2991
RMK AO2 RAB32 TSB40E44 SLP127 P0005 60005 T01830150
56026
ALDARS included TSE44, only 4 minutes after the thunderstorm began;
however, the thunderstorm hadn't actually ended.
Flint, Michigan:
METAR KFNT 010253Z 19005KT 7SM -TSRA FEW007 BKN019 OVC100
12/11 A2963 RMK AO2 LTG DSNT SE AND W AND NW TSE30E37B43
SLP035 P0017 60019 T01170111 58024
ALDARS included 2 TSE times.
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Post by tornado on Mar 1, 2017 17:09:42 GMT -5
St. Louis Downtown Airport, Cahokia, Illinois:
METAR KCPS 010353Z 18007KT 10SM CLR 19/15 A2960 RMK AO2 SLP020
T01890150 $
METAR KCPS 010453Z AUTO 18009G17KT 9SM CLR 20/16 A2957 RMK
AO2 SLP011 T02000161 TSNO $
SPECI KCPS 010818Z AUTO 29022G61KT 4SM RA SQ FEW033 BKN041
OVC060 13/09 A2966 RMK AO2 PK WND 32061/0812 RAB07
PRESRR P0003 T01330089 TSNO $
It appears LAWRS turned off ALDARS before leaving for the night. There was a severe rain
shower by 0812Z, no thunder reported (TSNO).
Lexington, Kentucky:
METAR KLEX 011454Z 18017G25KT 9SM VCTS -RA SCT060 SCT070
OVC085 13/10 A2970 RMK AO2 WSHFT 1431 LTG DSNT
NE-S TSE10B17E19 SLP053 P0026 60061 T01280100
50016
ALDARS recorded a 2-minute thunderstorm.
Essex County Airport, Caldwell, New Jersey:
SPECI KCDW 011435Z 23007KT 200V260 4SM -TSRA BR OVC012 15/13
A2971 RMK AO2 RAB24 TSB35 P0001 T01500128
SPECI KCDW 011448Z VRB03KT 7SM -RA OVC012 15/13 A2971 RMK
AO2 RAB24 TSB35E48 P0001
ALDARS recorded a 13-minute thunderstorm.
Allegheny County Airport, near Pittsburgh, Pennsylvania:
SPECI KAGC 011548Z 15007KT 3SM TSRA BR BKN047 OVC070 12/09
A2958 RMK AO2 LTG DSNT SE AND S TSB45 P0018
METAR KAGC 011553Z 26005KT 3SM -RA OVC008 12/10 A2962 RMK
AO2 LTG DSNT E-S TSB45E50 PRESRR SLP033 P0020
T01170100
ALDARS recorded a 5-minute thunderstorm.
Clarksburg, West Virginia:
SPECI KCKB 011226Z 27015G21KT 1SM +TSRA BR BKN025 BKN040
OVC070 15/14 A2971 RMK AO2 LTG DSNT ALQDS RAE03B24
TSB01E03 PRESRR P0032 T01500139 RVRNO
METAR KCKB 011253Z 23016G25KT 4SM VCTS +RA BR SCT032 OVC070
15/13 A2971 RMK AO2 WSHFT 1222 LTG DSNT NE AND
SE AND W RAE03B24 TSB01E03E46 SLP051 P0043 T01500128
The TSE time of 1203Z that ALDARS included, was bogus.
Tri-State Airport, Huntington, West Virginia:
METAR KHTS 011451Z 29017G33KT 3SM RA FEW016 BKN023 OVC090
13/11 A2983 RMK AO2 PK WND 29038/1436 WSHFT 1357
RAB10 TSB48 SLP098 P0023 60023 T01330106 53047
TSB48? What thunderstorm?
SPECI KHTS 011458Z 28013G24KT 3SM TSRA BR SCT020 BKN040 OVC085
13/11 A2986 RMK AO2 TSB52 PRESRR P0002 T01280106=
METAR KHTS 011551Z 20006KT 3SM TSRA BR OVC080 12/10 A2982
RMK AO2 PK WND 28027/1510 TSB1452 SLP095 P0019
T01220100
Oh, that thunderstorm. 2 TSB times, one with TS in present weather, and one without.
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Post by tornado on Mar 7, 2017 9:09:25 GMT -5
Cape Girardeau, Missouri:METAR KCGI 070853Z AUTO 19020G36KT 6SM BR BKN010 OVC014 17/14 A2982 RMK AO2 PK WND 21039/0801 SLP097 60000 T01670144 58004 TSNOSPECI KCGI 070908Z AUTO 27021G43KT 1SM +RA BR OVC010 14/12 A2991 RMK AO2 PK WND 27043/0903 WSHFT 0854 RAB03 PRESRR P0019 T01390122 TSNO RVRNO SPECI KCGI 070915Z AUTO 30013KT 3/4SM +RA BR BKN011 OVC022 13/12 A2990 RMK AO2 PK WND 27043/0903 WSHFT 0901 RAB03 P0032 T01280117 TSNO RVRNO SPECI KCGI 070917Z AUTO 30013KT 1 1/4SM +RA BR SCT011 OVC029 13/12 A2990 RMK AO2 PK WND 27043/0903 WSHFT 0901 RAB03 P0033 T01280117 TSNOSPECI KCGI 070920Z AUTO 29011KT 2SM +RA BR SCT011 OVC036 13/12 A2990 RMK AO2 PK WND 27043/0903 WSHFT 0901 RAB03 P0034 T01280117 TSNOSPECI KCGI 070929Z AUTO 27011KT 4SM RA BR FEW011 BKN043 OVC070 13/12 A2991 RMK AO2 PK WND 27043/0903 WSHFT 0901 RAB03 P0037 T01280117 TSNOMETAR KCGI 070953Z AUTO 24008KT 6SM RA BR OVC070 13/12 A2993 RMK AO2 PK WND 27043/0903 WSHFT 0901 RAB03 SLP134 P0043 T01280117 TSNOALDARS doesn't work, if LAWRS disables it:  Kenosha, Wisconsin:
METAR KENW 070653Z AUTO 19026G38KT 10SM FEW023 BKN030 OVC065
18/14 A2946 RMK AO2 PK WND 20038/0653 LTG DSNT
SW PRESFR SLP975 T01830139
SPECI KENW 070659Z AUTO 23033G51KT 2 1/2SM VCTS HZ SCT027
BKN043 BKN065 18/14 A2952 RMK AO2 PK WND 24051/0659
LTG DSNT SW AND W TSE58 PRESRR T01830139
SPECI KENW 070701Z AUTO 24024G51KT 1SM VCTS +RA FEW011 BKN027
BKN043 17/13 A2954 RMK AO2 PK WND 24051/0659 LTG
DSNT SW-N RAB01 TSE0658 PRESRR P0011 T01670133
SPECI KENW 070706Z AUTO 24022G51KT 3/4SM +TSRA BR BKN031
BKN044 14/12 A2954 RMK AO2 PK WND 24051/0659 LTG
DSNT SW-N RAB01 TSE0658B06 P0017 T01440122
Lightning from the derecho was detected within 10 miles of Kenosha, by 0658Z, apparently. Yet, ALDARS
recorded TSE58 instead of TSB58. The strongest gust struck before the TS began at 0706Z. It's also doubtful
that haze was the true obstruction to vision at 0659Z. The bottom line is, observers are tasked with getting
thunderstorm information correct- and when ALDARS puts incorrect data during severe weather, it doesn't help!
Wikipedia: Derecho
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Post by hlsto2 on Mar 7, 2017 19:54:49 GMT -5
accurate ALDARS reports a 1 min TS...TSB24E25...but TS is in present weather at 2236. then ALDARS reports TWO different end times...
this is what you get when you mix a LAWRS site with ALDARS...garbage CC: dynamic duo
KBTR 072241Z 35009G20KT 10SM VCTS BKN024 BKN033 OVC080 21/18 A3013 RMK AO2 LTG DSNT ALQDS TSB24E25E39 T02110178
KBTR 072236Z 35014G20KT 10SM TS SCT026 BKN033 OVC080 23/18 A3013 RMK AO2 LTG DSNT W-NE TSB24E25 T02330183
KBTR 072220Z 23010G19KT 10SM VCTS BKN028 BKN039 26/19 A3011 RMK AO2 LTG DSNT W-NE T02560194
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Post by tornado on Mar 10, 2017 11:18:06 GMT -5
Meridian, Mississippi:
SPECI KMEI 100209Z 00000KT 10SM TS FEW049 BKN055 18/16 A3011
RMK AO2 LTG DSNT W TSB03 T01830156
SPECI KMEI 100224Z 20010KT 3SM VCTS +RA FEW031 BKN049 BKN075
20/17 A3011 RMK AO2 LTG DSNT SW RAB18 TSB03E18
P0005 T02000172
SPECI KMEI 100242Z 22011KT 8SM -TSRA SCT040 SCT075 OVC100
20/18 A3011 RMK AO2 RAB18 TSB03E18 P0013 T02000183
The thunderstorm ended at 0218Z. Yet, there one was, in present weather at 0242Z.
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Post by zoomthundersnow on Mar 10, 2017 13:26:47 GMT -5
If there is no error or inaccuracy, then why isn't there a beginning time for the TS in Present Weather at the 0242Z SPECI? TSB03E18, changed to VCTS, and VCTS to TS at 0242Z, Yet there is no beginning time for the TS in the SPECI? That is the inaccuracy and error. Makes sense to me
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Post by zoomthundersnow on Mar 10, 2017 15:15:16 GMT -5
The one post from infoman regarding "errors and inaccuracy" has disappeared like magic!
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