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Post by toofarnorth on Jan 27, 2015 15:29:53 GMT -5
+UP !!! must be due to high altitude global warming...
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Post by tornado on Jan 27, 2015 15:44:39 GMT -5
Hartford-Brainerd, Connecticut:
SPECI KHFD 270719Z AUTO 01016G28KT 1/4SM +SN FZFG VV008 M08/M10
A2974 RMK AO2 PK WND 01028/0711 P0000 T10831100
SPECI KHFD 270807Z AUTO 36010G20KT 1/4SM FZFG VV004 M09/M11
A2972 RMK AO2 P0001 T10891106 PWINO FZRANO
METAR KHFD 270953Z AUTO 36013G26KT 1/2SM FZFG VV009 M09/M11
A2965 RMK AO2 PK WND 36027/0938 SLP041 T10891111
PWINO FZRANO $
Most likely, instead of freezing fog, the true obstruction was blowing snow.
Martha’s Vineyard, Massachusetts:
METAR KMVY 271353Z AUTO 36027G50KT 1/2SM R24/2200V3000FT
FZFG VV009 M04/M06 A2931 RMK AO2 PK WND 01052/1327
SLP926 T10441061 PWINO FZRANO $
METAR KMVY 271453Z AUTO 1/2SM R24/2800V3500FT FZFG VV011
M04/M07 A2932 RMK AO2 SLP929 T10441067 53002 PWINO
FZRANO $
METAR KMVY 271553Z AUTO 1/2SM R24/2400V3000FT FZFG VV010
M04/M07 A2932 RMK AO2 SLP930 T10441067 PWINO FZRANO $
METAR KMVY 271653Z AUTO 1/4SM R24/1600V2000FT FZFG VV007
M05/M07 A2932 RMK AO2 SLP930 T10501067 PWINO FZRANO $
METAR KMVY 271753Z AUTO 1/4SM R24/1400V1800FT FZFG VV005
M05/M07 A2933 RMK AO2 SLP934 T10501067 11033 21050
53005 PWINO FZRANO $
METAR KMVY 271853Z AUTO 1/4SM R24/1400V1600FT FZFG VV005
M07/M09 A2934 RMK AO2 SLP935 T10721089 PWINO FZRANO $
METAR KMVY 271953Z AUTO 1/2SM R24/2400V2800FT FZFG VV009
M08/M10 A2936 RMK AO2 SLP943 T10781100 PWINO FZRANO $
After strong winds, ASOS had missing winds for several hours.
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Post by tornado on Jan 27, 2015 16:32:25 GMT -5
a number of "reliable" ma ASOS sites go PWINO FZRANO during a historic blizzard. obvious that BLSN is proly occurring, too. KORH 270654Z AUTO 03018G29KT 1/4SM R11/2200V2800FT FZFG VV004 M12/M13 A2965 RMK AO2 PK WND 03037/0623 SLP060 P0002 T11171133 PWINO FZRANO $ KORH 270641Z AUTO 03021G32KT 1/4SM R11/2400V3000FT FZFG VV004 M12/M13 A2966 RMK AO2 PK WND 03037/0623 P0002 T11171133 PWINO FZRANO $ KORH 270613Z AUTO 03019G33KT 1/4SM R11/2200V3500FT FZFG VV006 M12/M13 A2967 RMK AO2 PK WND 03033/0611 P0001 T11171133 PWINO FZRANO $ KORH 270554Z AUTO 03014G33KT 1/2SM R11/2400V4500FT FZFG VV008 M12/M13 A2967 RMK AO2 PK WND 02033/0550 SNEMM SLP067 P0002 60012 T11171133 11083 21117 58040 PWINO FZRANO $ Since ASOS didn't record snow for a good part of the event, I wonder where they got the snow totals? From Weather Underground: |
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Post by snowwx on Jan 28, 2015 1:59:43 GMT -5
Probably got most of the snow totals from COCORAHS...thats what they do around here...NWS grabs the snowfall totals that suit them and which verified their forecast and throw any official stuff out...
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Post by hlsto2 on Jan 28, 2015 21:13:43 GMT -5
"reliable" ASOS at caribou, me. 1723...vis missing. 1941-1954 and 2134-2154 pwino fzrano.
KCAR 272154Z AUTO 02019G26KT 1 1/4SM HZ OVC021 M15/M18 A2986 RMK AO2 PK WND 02026/2153 SNEMM SLP132 P0002 T11501178 PWINO FZRANO $
KCAR 272152Z AUTO 02016G22KT 1 1/2SM HZ OVC021 M15/M18 A2986 RMK AO2 SNEMM P0002 PWINO FZRANO $
KCAR 272144Z AUTO 02016G23KT 1 1/4SM HZ OVC019 M15/M18 A2987 RMK AO2 SNEMM P0002 T11501178 PWINO FZRANO $
KCAR 272134Z AUTO 02015G21KT 3/4SM HZ VV015 M15/M18 A2987 RMK AO2 SNEMM P0002 T11501178 PWINO FZRANO $
KCAR 272112Z AUTO 02014G24KT 1/4SM +SN FZFG VV009 M16/M18 A2987 RMK AO2 P0002 T11561178
KCAR 272054Z AUTO 02013G22KT 1/4SM +SN VV011 M16/M18 A2987 RMK AO2 SNB00 SLP137 P0000 60005 T11561183 56025
KCAR 272047Z AUTO 02016G22KT 1/2SM SN VV013 M16/M18 A2988 RMK AO2 SNB00 P0000 T11561183
KCAR 272003Z AUTO 02017G25KT 1/2SM SN VV017 M16/M18 A2990 RMK AO2 SNB00 P0000 T11561183
KCAR 271954Z AUTO 02014G29KT 1SM HZ VV017 M16/M18 A2990 RMK AO2 PK WND 01029/1949 SNEMM SLP146 P0002 T11561183 PWINO FZRANO
KCAR 271944Z AUTO 02016G24KT 1SM HZ VV015 M16/M18 A2990 RMK AO2 PK WND 02029/1912 SNEMM P0002 T11561183 PWINO FZRANO $
KCAR 271941Z AUTO 02016G24KT 3/4SM HZ VV014 M16/M18 A2991 RMK AO2 PK WND 02029/1912 SNEMM P0002 T11561183 PWINO FZRANO $
KCAR 271915Z AUTO 02016G29KT 1/4SM +SN VV009 M16/M18 A2991 RMK AO2 PK WND 02029/1912 P0000 T11561183 $
KCAR 271854Z AUTO 02015G24KT 1/4SM +SN VV010 M16/M18 A2992 RMK AO2 PK WND 03031/1820 SLP151 P0003 T11561183 $
KCAR 271830Z AUTO 02015G24KT 1/2SM SN VV010 M16/M18 A2993 RMK AO2 PK WND 03031/1820 P0002 T11561183 $
KCAR 271754Z AUTO 02018G30KT 1/4SM +SN VV007 M16/M19 A2995 RMK AO2 PK WND 02030/1753 PRESFR SLP162 P0004 60007 T11561189 11156 21172 58038
KCAR 271740Z AUTO 02015G24KT 1/4SM +SN VV006 M16/M18 A2998 RMK AO2 P0004 T11561183
KCAR 271723Z AUTO 02018G25KT +SN OVC006 M16/M18 A2997 RMK AO2 P0002 T11561183 $
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Post by hlsto2 on Jan 28, 2015 21:18:06 GMT -5
more from caribou...ASOS transmits UP for present weather
KCAR 280654Z AUTO 01013G23KT 10SM UP OVC044 M12/M16 A2975 RMK AO2 PK WND 01026/0611 UPE00B25 SLP093 P0000 T11171156
KCAR 280554Z AUTO 01018G23KT 10SM UP FEW027 OVC050 M12/M16 A2974 RMK AO2 PK WND 01027/0528 UPB0458E21B41SNE0458 SLP089 P0000 60005 T11221161 11122 21139 58015
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Post by hlsto2 on Jan 30, 2015 21:18:05 GMT -5
"eliable" ASOS sites in srn ny and nrn pa reporting UP for present weather
KELZ 310156Z AUTO 31019G27KT 5SM UP OVC014 M15/M18 A3015 RMK AO2 PK WND 30027/0152 UPB09E38B55SNB38E55 SLP252 P0000 T11501183
KELZ 310148Z AUTO 31014G25KT 4SM -SN OVC014 M15/M18 A3015 RMK AO2 PK WND 31026/0134 UPB09E38SNB38 P0000 T11501183
KELZ 310137Z AUTO 31017G26KT 6SM UP OVC015 M14/M18 A3015 RMK AO2 PK WND 31026/0134 UPB09 P0000 T11441183
KELZ 310121Z AUTO 31015G22KT 8SM UP BKN014 OVC021 M14/M18 A3015 RMK AO2 UPB09 P0000 T11441183
KBFD 310202Z AUTO 31013KT 2 1/2SM UP OVC013 M16/M19 A3018 RMK AO2 P0000 T11561189
KBFD 310153Z AUTO 30016KT 3SM UP BKN012 OVC016 M16/M19 A3018 RMK AO2 UPB0056 SLP258 P0000 T11561189
KBFD 310131Z AUTO 31015G24KT 3SM UP OVC014 M15/M19 A3018 RMK AO2 UPB0056 P0000 T11501189
KBFD 310053Z AUTO 30012KT 5SM HZ OVC015 M15/M19 A3017 RMK AO2 UPE35 SLP255 P0000 T11501189
KBFD 310002Z AUTO 31015G20KT 3SM UP OVC017 M14/M18 A3017 RMK AO2 P0000 T11441183
KBFD 302353Z AUTO 30010G19KT 3SM UP BKN014 OVC022 M14/M18 A3017 RMK AO2 UPB39SNE39 SLP251 P0000 60000 T11441183 11100 21144 51011
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Post by hlsto2 on Feb 3, 2015 3:28:49 GMT -5
"reliable" ASOS cranking out false HZ specis
ERI 030751Z AUTO 21009KT 10SM CLR M14/M18 A3016 RMK AO2 SLP230 T11441178 $
KERI 030709Z AUTO 21007KT 3SM HZ CLR M14/M17 A3017 RMK AO2 T11441172 $
KERI 030658Z AUTO 21007KT 1 3/4SM HZ CLR M14/M17 A3017 RMK AO2 VIS 1/4V5 T11441172 $
KERI 030651Z AUTO 21006KT 10SM CLR M14/M17 A3017 RMK AO2 SLP231 T11441172 $
KERI 030601Z AUTO 21006KT 8SM FEW002 M14/M17 A3016 RMK AO2 T11441167 $
KERI 030551Z AUTO 21005KT 2SM HZ FEW002 M13/M16 A3016 RMK AO2 SLP228 60001 T11331161 11094 21139 50003 $
KERI 030541Z AUTO 22007KT 3SM HZ FEW002 SCT033 M13/M16 A3016 RMK AO2 T11331161 $
KERI 030451Z AUTO 23005KT 10SM OVC031 M11/M14 A3016 RMK AO2 SLP229 T11111144 410611128 $
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Post by hlsto2 on Feb 5, 2015 2:30:42 GMT -5
"reliable" ASOS at morgantown and clarksburg wva xmits UP for present weather...
KMGW 050553Z AUTO 31004KT 2 1/2SM UP BKN009 OVC014 01/M02 A2997 RMK AO2 UPB24 CIG 005V012 SLP155 P0001 60001 T00111017 10072 20011 53007 TSNO
KMGW 050541Z AUTO 32003KT 4SM UP BKN013 OVC021 02/M02 A2997 RMK AO2 UPB24 P0000 T00171022 TSNO
KCKB 050700Z AUTO 30008KT 8SM UP BKN012 OVC022 01/M01 A2998 RMK AO2 P0000 T00111006 TSNO
KCKB 050653Z AUTO 29008KT 7SM UP SCT010 BKN017 OVC021 01/M01 A2998 RMK AO2 UPE01B51SNB01E51 SLP154 P0001 T00111006 TSNO
KCKB 050604Z AUTO 31008KT 8SM -SN BKN023 OVC045 02/M01 A2997 RMK AO2 UPE01SNB01 P0000 T00221011 TSNO
KCKB 050553Z AUTO 31009KT 10SM UP SCT027 BKN047 OVC055 03/M01 A2996 RMK AO2 RAE53UPB53SNB16E27 SLP148 P0000 60000 T00281011 10067
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Post by tornado on Feb 5, 2015 12:22:08 GMT -5
St. Petersburg-Clearwater, Florida:
METAR KPIE 050553Z AUTO 00000KT 2SM +RA BR FEW031 BKN041
OVC080 17/16 A2995 RMK AO2 LTG DSNT SW AND W SLP140
P0030 60033 T01670161 10211 20167 58010
METAR KPIE NIL 050653Z
METAR KPIE NIL 050753Z
METAR KPIE 050853Z AUTO 16007KT 10SM VCTS -RA BKN110 17/17
A2989 RMK AO2 LTG DSNT S RAB12 SLP120 6//// T01720167
PNO $
Thunderstorm activity put ASOS out of commission for 2 METARs, which was a gap of 3 hours
without a weather update.
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aero0
New Member
Posts: 29 
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Post by aero0 on Feb 8, 2015 15:40:52 GMT -5
Having been a NWS Aviation Observations Instructor and OBS checker in AZ, CA and WA I found that most observers that took manual obs only took 1 or 2 SPECI's an hour in bad weather, but now with ASOS at major Airports the number of SPECI's that are generated in changing Winter Wx can be 4 or 5 SPECI's because ASOS in most cases can see changes in SKY and VIS better than the human eye, making for more SPECI's which Air Traffic Control Towers are not staffed for, hence many new Controller students seem to find it difficult to keep up with several SPECI'S per hour.
When and if Controllers take over the Obs I doubt if they will be xmitting more than 1 or 2 SPECI's per hour do to pressing Controller work and not being staffed to take several SPECI's per hour.
My experience with Controllers is that they like to take the TWR VIS down to 1/4 or 1/2 mile and keep it as low as possible and as long as possible to keep from having more SPECI's generated by the Contracat Wx Observer.
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Post by alstein on Feb 8, 2015 15:58:13 GMT -5
Often it depends on the conditions. I don't think a human observer can tell the difference between say 1400 and 1600 feet easily, ASOS beats humans there, but often gets the cloud amount wrong unless it is overcast. This isn't even pointing out the major areas where ASOS fails miserably such as ALDARS, UP, etc...
This is why ASOS needs to be augmented by professionals and not controllers. Controllers have an interest in not being accurate, and a feeling the work is beneath them.
This is bad for aviation (it does increase the odds of an accident) and non-aviation reasons (inaccurate weather data= inaccurate data in models= less accurate forecasts. I've seen the impact of bad data on models- and it's a good bit of work redrawing contour lines and adjusting it manually because I've done it ) .
The controllers don't want additional SPECI work so they usually bring it down. Often they forget to bring it back up, I've had to call them a few times when VIS was 6+ here and they wanted to keep TWR VIS 1 or something. They don't even know how to log into the machine, or claim they don't.
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Post by hlsto2 on Feb 8, 2015 16:56:18 GMT -5
another reason atct should not be allowed to touch ASOS (besides their incompetence) is they have the power to control airport operations (in addition to twr vis)
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Post by hlsto2 on Feb 8, 2015 18:18:36 GMT -5
"reliable" AWOS site in michigan reporting UP for 2 hours...
KLWA 082255Z AUTO 07010G15KT 4SM UP OVC006 00/M02 A2981 RMK AO2 T10041017
KLWA 082235Z AUTO 04011G14KT 4SM UP OVC006 00/M01 A2980 RMK AO2 T10011014
KLWA 082215Z AUTO 04011KT 3SM UP OVC006 00/M01 A2978 RMK AO2 T00001011
KLWA 082155Z AUTO 05008G14KT 2 1/2SM BR OVC006 00/M01 A2977 RMK AO2 T00021007
KLWA 082135Z AUTO 04009KT 2 1/2SM BR OVC006 01/00 A2976 RMK AO2 T00051005
KLWA 082115Z AUTO 05009KT 1 1/2SM UP OVC006 01/00 A2974 RMK AO2 T00100000
KLWA 082055Z AUTO 06005KT 1 3/4SM UP OVC006 01/00 A2973 RMK AO2 T00101001
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Post by hlsto2 on Feb 8, 2015 21:40:39 GMT -5
"reliable" ASOS in srn NY spitting out UP for present weather during a freezing rain event...
KELZ 090119Z AUTO 34003KT 2SM -FZRA BR FEW001 BKN018 OVC031 M03/M05 A2976 RMK AO2 UPE19FZRAB19 P0000 I1000 T10331050
KELZ 090110Z AUTO 36003KT 4SM UP BR FEW001 BKN021 OVC029 M03/M04 A2976 RMK AO2 P0000 T10281044
KELZ 090056Z AUTO 00000KT 5SM UP BR SCT021 OVC032 M02/M03 A2976 RMK AO2 UPE03B35FZRAB03E35 SLP095 P0001 I1001 T10221033
KELZ 090041Z AUTO 00000KT 5SM UP BR BKN021 OVC032 M02/M03 A2975 RMK AO2 UPE03B35FZRAB03E35 P0001 I1001 T10171033
KELZ 090009Z AUTO 00000KT 6SM -FZRA BR OVC019 M01/M02 A2975 RMK AO2 UPE03FZRAB03 P0000 I1001 T10111017
KELZ 082356Z AUTO 35003KT 6SM UP BR OVC019 M01/M02 A2975 RMK AO2 RAB04E53UPB53 SLP090 P0001 60001 T10061022 10067 21006 51019
KELZ 082256Z AUTO VRB03KT 10SM OVC024 04/M01 A2973 RMK AO2 SLP083 T00441006
KELZ 082156Z AUTO 24006KT 10SM OVC024 06/M01 A2971 RMK AO2 SLP073 T00611006
KELZ 082056Z AUTO 24005KT 10SM OVC023 06/M01 A2968 RMK AO2 RAE03 SLP064 P0000 60000 T00561006 58000
KELM 090153Z AUTO 06011KT 6SM UP BR OVC035 M05/M07 A2986 RMK AO2 UPB21 SLP123 P0000 T10501072
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