Performance of Antarctic SYNOP messages

Surface stations

This chart shows the status of SYNOP messages for the main hours on the GTS during 2024, with green representing good performance, light green representing less than 90% of expected messages (acceptable, but not adequate for CLIMAT), yellow less than 80% and amber less than 50%.

If less that 30% are found then the number of days in the month that observations were recieved is displayed which may have been on non main synoptic hours which occurs mainly for AWS transmitting via Argos.

When the number of days is displayed a D is shown before the number, greater than 25 days is displayed in green, light green for between 20 and 25 days, yellow for between 10 and 20 days, amber for between 5 and 10 days and red for less than 5 days.

WMO no	Station name	Comments	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
61997	Isle Crozet	GSN station	0	0	0	0
61998	Isle Kerguelen	GSN station	98	100	100	99
68906	Gough Island	GSN station	83	81	87	86
68992	Bouvetoya	GSN station	0	0	0	0
68994	Marion Island	GSN station	85	98	93	68
88870	Mount Byron		98	100	83	100
88878	Pebble Island		98	100	100	100
88881	Mount Kent		0	0	100	100
88883	Weddell Island		98	100	99	100
88889	Mount Pleasant Airport	GSN station	98	100	100	100
88892	Sapper Hill		0	0	0	0
88894	Mount Alice		98	100	100	100
88897	Sea Lion Island		98	100	100	100
88900	Bird Island		67	55	48	37
88903	Grytviken	GSN station	87	88	87	70
88986	South Thule Island		0	0	0	0
88963	Esperanza	GSN station	97	100	99	100
88968	Orcadas	GSN station	98	99	95	100
89002	Neumayer	GSN station	98	100	100	100
89003	Halvfarryggen EP11		80	79	82	70
89004	SANAE	GSN station	45	96	91	100
89009	Amundsen-Scott	GSN station	95	97	100	90
89011	Soerasen		85	75	84	70
89013	Baldrick AWS		D 16	D 26	D 29	D 22
89014	Nordenskiold		95	95	90	98
89022	Halley	GSN station	94	100	100	90
89034	Belgrano II		98	100	99	90
89047	Filchner		0	0	0	0
89049	AGO-2	Failed	0	0	0	0
89050	Bellingshausen	GSN station	96	100	97	96
89053	Jubany		97	98	100	100
89054	Dinamet		0	0	0	0
89055	Marambio	GSN station	97	100	100	100
89056	Frei	GSN station	98	99	98	93
89057	Arturo Prat		98	99	97	88
89058	Great Wall		D 1	0	55	30
89059	O'Higgins		92	96	96	94
89061	Palmer		99	98	97	98
89062	Rothera	GSN station	97	100	100	100
89063	Vernadsky	GSN station	99	100	100	100
89064	Juan Carlos		0	0	0	0
89065	Fossil Bluff	GSN station	80	84	87	83
89066	San Martin		98	100	99	95
89079	Criosfera 1		32	30	0	0
89087	Thiel Mountains		0	0	0	0
89108	Henry		70	72	61	60
89132	Russkaya		0	0	0	0
89251	King Sejong		95	97	95	98
89257	Limbert		95	93	96	98
89262	Larsen Ice Shelf	GSN station	33	67	81	71
89266	Butler Island	GSN station	92	93	99	96
89269	Bonaparte Point		0	0	0	0
89272	Sky Blu	GSN station	94	91	98	94
89314	Theresa		0	0	D 1	0
89324	Byrd Station	GSN station	64	71	56	53
89327	Mount Siple	GSN station	0	0	0	0
89329	Harry	GSN station	63	68	47	46
89332	Elizabeth		69	72	61	60
89345	Siple Dome	GSN station	70	73	62	57
89376	Gill	GSN station	71	68	59	59
89377	Lettau	GSN station	72	70	60	59
89504	Troll		0	0	0	0
89507	Kohnen EP9		0	0	0	0
89512	Novolazarevskaya	GSN station	98	99	100	100
89514	Maitri		62	96	95	91
89528	AGO-3	Failed	0	0	0	0
89532	Syowa	GSN station	98	99	99	100
89536	Plateau		0	0	0	0
89542	Molodeznaja		98	100	99	100
89558	Pole of Inaccessibility		0	0	0	0
89564	Mawson	GSN station	98	100	100	100
89570	Davis (Whoop Whoop)		98	100	33	0
89571	Davis	GSN station	98	100	100	100
89573	Zhongshan	GSN station	0	0	57	32
89574	Progress	GSN station	98	100	98	99
89575	Druzhnaya 4		0	D 2	100	100
89577	Dome A	GSN station	92	88	69	93
89578	Eagle		66	0	0	0
89592	Mirnyj	GSN station	97	99	96	99
89598	AGO-4		72	75	61	48
89601	Oazic Bangera		98	100	100	99
89606	Vostok	GSN station	97	100	97	99
89610	Cape Poinsett		0	0	0	0
89611	Casey	GSN station	98	99	100	100
89614	Wilkins Runway West		59	46	32	30
89615	Wilkins Runway East		81	97	90	D 2
89625	Concordia	GSN station	96	97	100	100
89628	AGO-1	Failed	0	0	0	0
89642	Dumont d’Urville	GSN station	98	99	100	99
89643	Port Martin		0	0	0	0
89646	Sitry Point		0	0	0	0
89648	Mid Point		35	0	0	D 1
89657	Leningradskaya		0	0	0	0
89659	Priestley (Nevee)		98	96	98	96
89661	Cape Phillips		96	99	97	97
89662	Mario Zuchelli Station	GSN station	94	98	97	96
89664	McMurdo	GSN station	89	99	100	99
89666	Cape Ross		98	96	98	98
89667	Pegasus North		0	0	0	0
89734	Dome Fuji		65	68	58	57
89744	Relay Station	GSN station	62	65	58	60
89767	G3 (Amery Ice Shelf AWS)		91	88	79	89
89768	Minna Bluff		46	0	0	0
89769	Linda		51	D 18	44	D 14
89776	Bharati		96	99	99	95
89799	Nico		73	74	61	60
89807	Snyder Rocks		43	66	62	77
89809	Casey Skiway South		98	65	0	0
89811	Law Dome Summit		80	86	83	80
89815	Haupt Nunatak		0	0	0	0
89828	Dome C II	GSN station	98	100	100	100
89832	D-10		D 1	0	0	0
89834	D-47		67	68	60	57
89836	D-85	No Synops	0	0	0	0
89859	Jang Bogo		98	100	100	99
89864	Manuela		70	72	61	62
89865	Whitlock	GSN station	60	68	50	55
89866	Marble Point	GSN station	98	100	100	100
89868	Schwerdtfeger		72	74	60	60
89869	Marilyn	GSN station	70	70	56	57
89872	Ferrell	GSN station	68	69	58	55
89873	Elaine		73	74	61	62
89879	Possession Island	GSN station	98	100	100	86
93929	Enderby Island AWS		98	100	97	100
93947	Campbell Island AWS	GSN station	98	100	97	100
94997	Heard Island (The Spit)		0	0	0	0
94998	Macquarie Island	GSN station	98	100	100	100
95997	Heard Island (Atlas Cove)	Failed	0	0	0	0
AAALE	Cape King		0	0	0	0
AACBD	Cape Bird		51	D 18	44	D 14
AABRI	Brianna		0	0	0	0
AADIS	Dismal Island	Off air	0	0	D 2	D 1
AACDN	Cape Denison	Off air	0	0	0	0
AAEMM	Emma		D 4	D 1	0	0
AAEML	Emilia		0	0	D 17	62
AAERN	Erin		68	73	61	63
AAKMS	Kominko-Slade		0	0	0	0
AALR2	Laurie II		71	73	62	64
AALOL	Tourmaline Plateau		0	0	0	0
AAMIZ	Mizuho		55	59	58	D 11
AARIT	Enigma Lake		0	0	0	0
AASOF	Sophia-B		0	0	0	0
AAUNI	Union Glacier		0	0	0	0
AAVIT	Vito		D 31	D 29	D 31	D 28
AAWFD	Willie Field		0	0	0	0
AAWDB	Windless Bight		51	D 18	44	D 14
AAZOR	Priestley Glacier	No Synop	0	0	0	0