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TO AWIPS/NOAAPORT USERS... FAMILY OF SERVICES /FOS/ SUBSCRIBERS...
EMERGENCY MANAGERS WEATHER INFORMATION NETWORK /EMWIN/
NATIONAL WEATHER SERVICE /NWS/ CUSTOMERS... WAFS USERS...
GTS USERS... NWS FAX CHART USERS
FROM DATA DISSEMINATION BRANCH
2001/11/01
DM09-01.01 ICAO Amendment 72 to Annex 3 METAR, SPECI AND TAF ISSUES
NOXX10KWBC 041713
DATA MGT MESSAGE 09-01.01
FOS / NOAAPort
ICAO Amendment 72 to Annex 3 METAR, SPECI and TAF Issues
Attention users of METAR, SPECI and TAF data and bulletins.
ICAO has approved Amendment 72 to Annex 3 (Meteorological Service
for International Air Navigation) for implementation November 01,
2001. This changes the format of METAR, SPECI and TAF reports
and also the bulletin format itself. WMO has also approved these
changes. These changes were introduced to support direct
datalink to the cockpit of in flight aircraft.
There has been considerable discussion by producers of data
regarding how this will be implemented. Both ICAO and WMO have
provisions for data producers to declare what differences or
exceptions they will have to approved standards. Many countries
including the U.S. have stated they do not plan to implement the
changes in November and will file exceptions. However, there
will be some implementation of the changes.
The NWS will make very few changes to it's products. METAR,
SPECI and TAF products originated from NWS Weather Forecast
Offices will not change. Collectives from the NWSTG (KWBC) will
not change except possibly those created for the FAA which are
identified with an ii group of 90. We are working with the FAA
to determine their requirements. We have been informed by the
DoD, they do not plan to change the format of their products. We
are waiting for information from the FAA as to what if any
changes will be made to their products. Many international
producers will not implement the changes. Japan has stated it
will implement the changes and some other countries will probably
also do so. Some countries will implement part but not all of
the changes.
In the U.S. the FAA is the executive agency for Aviation and the
representative to ICAO. NWS is the executive agency to WMO. We
are working with the FAA and our international partners to get
complete information about the upcoming changes. As we get
information we will keep you updated.
Below are examples of the format changes and the states of
implementation we expect. Also included are the specifics for
each of the NWS originated products.
Format examples if all specifications were implemented:
For METAR:
SACZ31 LKPR 210500
METAR 210500Z
METAR LKKV 210500Z .....
METAR LKMT 210500Z .....
The first line "METAR 210500Z" would be included even if there
was only one METAR report in the bulletin.
For SPECI:
SPCZ31 LKPR 210515
SPECI LKKV 210515Z .....
For TAF:
FTCZ31 LKPR 210530
TAF
TAF LKKV 210600Z...
TAF LKMT 210600Z...
Additional format examples of the probable range of
implementations:
Note these are generic representations of the WMO heading and
codes reports which can be expected to be found with METAR, SPECI
or TAF data and products.
TTAAii CCCC YYGGgg (BBB) BBB = CCx, AAx, RRx, COR, AMD, RTD
MiMiMjMj YYGGggZ MiMiMjMj = METAR, SPECI, TAF
CODE CCCC YYGGggZ ...= CODE = METAR, SPECI, TAF
(CODE CCCC YYGGggZ ...=)
TTAAii CCCC YYGGgg (BBB)
MiMiMjMj (BBB)
CODE CCCC YYGGggZ ...
(CODE CCCC YYGGggZ ...=)
TTAAii CCCC YYGGgg (BBB)
MiMiMjMj (BBB)
CCCC YYGGggZ ...
(CCCC YYGGggZ ...=)
TTAAii CCCC YYGGgg (BBB)
MiMiMjMj YYGGggZ
CODE CCCC YYGGggZ ...
(CODE CCCC YYGGggZ ...=)
TTAAii CCCC YYGGgg (BBB)
CODE (BBB) CCCC YYGGggZ ...
(CODE (BBB) CCCC YYGGggZ ...=)
TTAAii CCCC YYGGgg (BBB)
CCCC YYGGggZ (BBB) ...
(CCCC YYGGggZ (BBB) ...=)
NWS format examples:
FTAA4i CCCC YYGGgg (BBB) TAF source report from field office
NNNXXX NNNXXX = AWIPS ID
MiMiMjMj (BBB) MiMiMjMj = TAF
CCCC YYGGggZ ...
(CCCC YYGGggZ ...=)
SAAA4i CCCC YYGGgg (BBB) METAR source report from field office
NNNXXX NNNXXX = AWIPS ID
CODE CCCC YYGGggZ (BBB)...= CODE = METAR or SPECI
(CODE CCCC YYGGggZ (BBB)...=)
TTAAii KWBC YYGGgg (BBB) Collective from NWSTG
MiMiMjMj (BBB)
CCCC YYGGggZ (BBB)...
(CCCC YYGGggZ ...=)
TTAA90 KWBC YYGGgg (BBB) FAA Collective from NWSTG
CODE (BBB) CCCC YYGGggZ ...
(CODE (BBB)CCCC YYGGggZ ...=)
Actual examples of NWS collectives:
Note: ##, equals Carriage Return, Carriage Return, Line Feed
FTUS41 KAKQ 301323##,
TAFECG##,
KECG 301130Z 301212 VRB04KT 3SM BR BKN150##,
TEMPO 1213 1SM BR BKN120##,
FM1400 20008KT 5SM HZ SCT040 BKN120##,
BECMG 1921 P6SM NSW BKN040##,
FM0000 18008KT P6SM SCT040 BKN120##,
TEMPO 0812 3SM BR=##,
##,
FTUS41 KAKQ 301414 AAB##,
TAFSBY##,
TAF AMD##,
KSBY 301411Z 301412 14007KT 3SM BR SCT030##,
TEMPO 1415 2SM BR##,
FM1600 12006KT P6SM SCT040 BKN150##,
FM1800 16007KT P6SM SCT040 BKN150##,
TEMPO 1923 BKN040##,
FM0000 17004KT P6SM SCT040 BKN120##,
BECMG 0406 2SM BR=##,
##,
FTUS41 KBTV 301145 CCA##,
TAFMPV##,
TAF##,
KMPV 301144Z 301212 00000KT 1/4SM FG VV001##,
TEMPO 1213 3/4SM BR BKN002##,
FM1300 00000KT 2SM BR BKN002##,
TEMPO 1314 6SM BR SCT005 OVC045##,
FM1400 VRB03KT P6SM BKN045##,
TEMPO 1416 SCT045##,
FM1600 19010KT P6SM SCT045##,
FM0000 19008KT P6SM SCT250##,
FM0600 18005KT P6SM SCT100 BKN250##,
FM0900 18005KT BKN100 BKN200=##,
##,
FTUS31 KWBC 301723##,
TAF##,
KDEN 301721Z 301818 VRB03KT P6SM SCT070 SCT120 SCT250##,
FM2100 06008KT P6SM BKN070 BKN120 BKN250##,
TEMPO 2103 VRB25G40KT 5SM -TSRAGS OVC040CB##,
FM0400 16010KT P6SM SCT140 SCT250=##,
KLIT 301730Z 301818 19007KT P6SM SCT025 BKN080##,
TEMPO 1822 5SM TSRA BKN025CB##,
FM2200 19008KT P6SM SCT030 BKN040##,
TEMPO 2202 5SM TSRA BKN030CB##,
FM0200 18005KT P6SM SCT030 BKN040 PROB40 0208 4SM TSRA##,
BKN030CB##,
FM0800 VRB03KT 6SM BR BKN030 PROB40 0814 4SM TSRA BR##,
OVC020CB=##,
FTUS31 KWBC 301642 AAA##,
TAF AMD##,
KBWI 301638Z 301712 14005KT 5SM BR SCT020 OVC030##,
TEMPO 1719 3SM TSRA BR OVC012CB##,
FM1900 16009KT P6SM SCT030 BKN080##,
TEMPO 1923 3SM TSRA OVC025CB##,
FM0200 16004KT P6SM BKN040##,
BECMG 0809 3SM BR OVC020=##,
FCUS44 KWBC 041132 CCA##,
TAF COR##,
KOLF 041130Z 0412122 VRB03KT P6SM SCT250##,
BECMG 1820 02008KT##,
FM2100 10008KT P6SM SCT180 BKN250##,
FM0400 11010KT P6SM BKN120=##,
FTUS80 KWBC 301727 RRH##,
TAF##,
PTPN 301720Z 301818 NIL=##,
PTRO 301720Z 301818 20008KT P6SM SCT017 BKN300=##,
PTYA 301720Z 301818 25009KT P6SM SCT018 BKN140 OVC300=##,
TISX 301730Z 301818 09012KT P6SM VCSH FEW024 SCT030##,
TEMPO 1820 6SM -SHRA SCT020 BKN030##,
FM2300 08009KT P6SM FEW025 PROB30 0410 6SM -SHRA SCT020##,
BKN030##,
FM1230 07012G18KT P6SM VCSH SCT020 BKN035=##,
FTUS80 KWBC 301650 AAA##,
TAF AMD##,
KMOT 301648Z 301712 35014KT P6SM BKN025##,
TEMPO 1721 SCT025##,
FM2100 32010KT P6SM SCT040##,
FM0200 VRB03KT P6SM SKC=##,
FTUS80 KWBC 301719##,
TAF##,
TIST 301730Z 301818 09014KT P6SM FEW025 SCT045##,
FM2200 08010KT P6SM FEW025 PROB30 0410 6SM -SHRA SCT020##,
BKN030##,
BECMG 1214 08013G18KT VCSH SCT018 BKN035=##,
FTUS80 KWBC 301527 CCA##,
TAF COR##,
PABR 301520Z 301212 08013KT 1/4SM -FZDZ FG VV001##,
TEMPO 1220 3/4SM BR OVC002##,
FM2000 07015KT 1SM BR OVC003##,
TEMPO 2012 1/4SM -DZ FG OVC001=##,
FTUS80 KWBC 301527 CCA##,
TAF COR##,
PABR 301520Z 301212 08013KT 1/4SM -FZDZ FG VV001##,
TEMPO 1220 3/4SM BR OVC002##,
FM2000 07015KT 1SM BR OVC003##,
TEMPO 2012 1/4SM -DZ FG OVC001=##,
FTUS90 KWBC 301718 AAA##,
TAF AMD KMGW 301715Z 301712 25007KT P6SM BKN030##,
FM2000 23006KT P6SM SCT040 SCT250##,
FM2300 21006KT P6SM SCT060 SCT200##,
FM0800 20006KT P6SM BKN060=##,
TAF AMD KLBE 301717Z 301712 26006KT 4SM HZ SCT035##,
FM2300 23006KT P6SM SCT050 SCT200##,
FM0800 20006KT P6SM BKN060=##,
FTUS90 KWBC 301718 AAA##,
TAF AMD KMGW 301715Z 301712 25007KT P6SM BKN030##,
FM2000 23006KT P6SM SCT040 SCT250##,
FM2300 21006KT P6SM SCT060 SCT200##,
FM0800 20006KT P6SM BKN060=##,
TAF AMD KLBE 301717Z 301712 26006KT 4SM HZ SCT035##,
FM2300 23006KT P6SM SCT050 SCT200##,
FM0800 20006KT P6SM BKN060=##,
SAUS44 KFWD 041223##,
MTRDFW##,
SPECI KDFW 041221Z 12007KT 2 1/2SM RA BR OVC015 22/21 A2994 RMK AO2 ##,
TWR VIS 4 P0008##,
SAUS44 KFWD 040108 COR##,
MTRDFW##,
SPECI KDFW 040103Z 09005KT 10SM -TSRA FEW041 SCT120CB OVC250 23/22 ##,
A2984 RMK AO2 FRQ LTGICCG NE-E TS NE-E MOV SE P0000##,
SAUS41 KAKQ 041156##,
MTRRIC##,
METAR KRIC 041154Z 22004KT 6SM BR SCT120 OVC250 21/19 A3002 RMK AO2 ##,
SLP169 60000 T02110194 10211 20194 53006##,
SAUS41 KRLX 041055 COR##,
MTRBKW##,
METAR KBKW 041051Z AUTO 00000KT 7SM BKN020 OVC055 16/15 A3009 RMK ##,
AO2 SLP166 T01560150##,
SAUS31 KWBC 041200 RRA##,
METAR##,
KTPA 041153Z COR 13004KT 10SM FEW015CB BKN250 26/24 A2999=##,
SAUS31 KWBC 041200 CCA##,
METAR##,
KSAN 041151Z VRB03KT 8SM OVC007 19/19 A2990=##,
SAUS31 KWBC 041200##,
METAR##,
KABQ 041156Z 10011KT 10SM FEW130 21/06 A3019=##,
KATL 041153Z 18003KT 9SM FEW004 OVC009 21/21 A3002=##,
KBGR 041153Z 20011KT 10SM OVC013 16/14 A2992=##,
KBHM 041153Z 00000KT 7SM FEW006 BKN015 OVC250 23/22 A2999=##,
KBNA 041153Z 00000KT 8SM BKN017 21/21 A3001=##,
KBOS 041154Z 19005KT 10SM FEW100 SCT250 17/17 A2997=##,
KBWI 041154Z 18003KT 8SM SCT080 BKN100 21/18 A2997=##,
KCHS 041156Z 00000KT 1/4SM +RA FG BKN003 BKN031 OVC040 22/21##,
A3002=##,
SAUS80 KWBC 041300 CCA##,
METAR##,
KJDN 041248Z AUTO 29005KT 12/01 A2998 RMK AO2 SLP141 T01220006##,
PWINO TSNO=##,
SAUS80 KWBC 041300##,
METAR##,
K87Q 041249Z AUTO 00000KT 13/12 A2990 RMK AO2 SLP124 T01280122##,
PWINO TSNO=##,
KMYL 041250Z AUTO 00000KT 10SM CLR 06/03 A3006 RMK AO2 SLP145##,
T00610028 TSNO=##,
SPUS80 KWBC 041244 CCA##,
SPECI##,
KUIL 041234Z AUTO 00000KT 10SM OVC016 11/11 A3003 RMK AO2 TSNO=##,
SPUS80 KWBC 041241##,
SPECI##,
KCVG 041239Z 27003KT 1/4SM FG OVC001 21/21 A3002 RMK AO2=##,
KTUP 041239Z 00000KT 1/4SM FG VV001 23/22 A2997 RMK AO2 P0001=##,
KMWT 041239Z AUTO 00000KT 1/4SM FG OVC004 22/22 A2999 RMK AO2##,
TSNO=##,
SAUS90 KWBC 041300 CCA##,
METAR KSNT 041251Z AUTO 00000KT 01/M02 A3022 RMK AO2 SLP153##,
T00111022 PWINO FZRANO TSNO=##,
SAUS90 KWBC 041300 RRA##,
METAR KPIA 041254Z 05008KT 10SM SCT017 19/16 A3004 RMK AO2 SLP168##,
T01940161=##,
METAR KBWI 041254Z 19007KT 7SM BKN080 BKN100 22/19 A2996 RMK AO2##,
SLP142 T02170189=##,
METAR KORH 041254Z 21010KT 10SM CLR 18/16 A2996 RMK AO2 SLP145##,
T01780156=##,
METAR KAPN 041254Z 32006KT 10SM BKN025 BKN150 14/12 A3008 RMK AO2##,
SLP186 8/570 9/520 T01390122=##,
SPUS90 KWBC 041246##,
SPECI KSMX 041243Z AUTO 33003KT 4SM BR BKN003 13/12 A2990 RMK AO2##,
TSNO=##,
FOR FOS/NOAAPORT QUESTIONS PLEASE CONTACT
JULIE HAYES
PHONE 301 713-0864 EXTENSION 120
EMAIL julie.hayes@xxxxxxxx
IF YOU HAVE ANY QUESTIONS PLEASE CONTACT.
FRED BRANSKI
TEAM LEADER FOR DATA MANAGEMENT
PHONE 301 713-0864 EXTENSION 146
EMAIL fred.branski@xxxxxxxx
WALTER SMITH
SENIOR DATA MANAGER
PHONE 301 713-0864 EXTENSION 139
EMAIL walter.smith@xxxxxxxx
RICHARD ROBINSON
DATA MANAGER
PHONE 301 713-0864 EXTENSION 179
EMAIL richard.robinson@xxxxxxxx
THIS INFORMATION IS ALSO POSTED ON THE NWS SYSTEMS OPERATIONS
CENTER CHANGE NOTICES WEB PAGE. THE URL IS LISTED BELOW.
http://205.156.54.206/oso/notices/notices2.shtml
DATA MANAGEMENT
DATA DISSEMINATION BRANCH
TELECOMMUNICATION OPERATIONS CENTER
RTH WASHINGTON SENDS
Richard Robinson
National Weather Service
Data Manager, W/OPS32
Phone: (301) 713-0880 ext. 179
Fax: (301) 713-1409
E-mail: Richard.Robinson@xxxxxxxx
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