TAF performance measurement results for TAFs issued during May 2011
Canadian Meteorological Aviation Centre/East (Montreal)
Station		VFR Category			Above IFR Alternate Category			Below IFR Alternate Category
Station	Station Type	Correct Forecasts (hours)	Total Forecasts (hours)	VFR Reliability Index	Correct Forecasts (hours)	Total Forecasts (hours)	Alternate Reliability Index	False Alarms (hours)	Total Forecasts (hours)	*Below Alternate False Alarm Ratio
Baie Comeau	NCA	784	880	89%	897	970	92%	63	122	52%
Bathurst	CWO	506	549	92%	529	590	90%	44	115	38%
Big Trout Lake	AWOS	707	810	87%	735	848	87%	34	118	29%
Blanc Sablon	CWO	736	784	94%	794	841	94%	96	209	46%
Buttonville	CWO	689	801	86%	727	831	87%	63	179	35%
Cartwright	CWO	831	873	95%	825	866	95%	41	86	48%
Chapleau	CWO	353	374	94%	353	374	94%	11	49	NSS
Charlottetown	ATS	562	681	83%	768	882	87%	98	298	33%
Chibougamau-Chapais	CWO	331	361	92%	354	374	95%	16	30	NSS
Churchill Falls	AWOS	709	815	87%	753	839	90%	60	150	40%
Deer Lake	ATS	724	813	89%	920	967	95%	56	85	66%
Dorval	CWO	1405	1497	94%	1646	1667	99%	11	19	NSS
Dryden	NCA	802	848	94%	884	903	98%	14	23	NSS
Earlton	CWO	375	391	96%	385	398	97%	12	18	NSS
Fredericton	NCA	647	870	74%	927	1051	88%	58	146	40%
Gander	CWO	574	763	75%	919	1073	86%	90	236	38%
Gaspé	CWO	750	830	90%	795	864	92%	107	173	62%
Gatineau	ATS	363	387	94%	382	400	95%	10	37	NSS
Geraldton	CWO	794	915	87%	876	973	90%	19	55	35%
Gore Bay	NCA	357	403	88%	373	412	91%	31	62	NSS
Halifax	ATS	544	799	68%	1001	1291	78%	135	765	18%
Hamilton	CWO	698	818	85%	777	900	86%	41	256	16%
Havre St Pierre	NCA	663	739	90%	704	790	89%	55	205	27%
Îles de la Madeleine	ATS	415	490	85%	447	521	86%	98	277	35%
Inukjuak	AWOS/CARS	713	787	91%	810	858	94%	41	85	49%
Ivujivik	CARS	126	145	86%	144	159	91%	3	14	NSS
Kapuskasing	CWO	802	853	94%	831	869	96%	16	34	NSS
Kenora	ATS	794	893	89%	857	924	93%	28	70	40%
Kingston	ATS	489	530	92%	569	581	98%	28	43	NSS
Kuujjuaq	ATS	816	906	90%	931	976	95%	6	14	NSS
Kuujjuarapik	CWO	759	898	85%	858	963	89%	72	125	57%
La Grande IV	AWOS/CWO	186	199	93%	197	203	97%	12	16	NSS
La Grande Rivière	ATS	782	881	89%	807	906	89%	27	106	25%
London	ATS	814	932	87%	967	1040	93%	63	120	52%
Marathon	CWO	160	178	90%	160	178	90%	5	30	NSS
Mary's Harbour	AWOS/CWO	470	542	87%	509	579	88%	39	132	30%
Mirabel	ATS	712	799	89%	875	917	95%	5	21	NSS
Moncton	CWO	598	711	84%	935	1031	91%	84	184	46%
Mont-Joli	ATS	744	822	90%	790	875	90%	59	228	26%
Moosonee	NCA	358	382	94%	373	395	94%	8	27	NSS
Muskoka	NCA	571	594	96%	592	615	96%	17	32	NSS
Nain	CWO	417	431	97%	339	361	94%	66	124	53%
Natashquan	AWOS	631	694	91%	687	749	92%	78	265	30%
North Bay	CWO	809	882	92%	867	925	94%	39	94	41%
Ottawa	CWO	1283	1408	91%	1557	1576	99%	13	26	NSS
Peterborough	NCA	536	596	90%	590	635	93%	24	50	NSS
Pickle Lake	CWO	351	381	92%	371	402	92%	10	37	NSS
Puvirnituq	CARS	157	181	86%	176	194	90%	10	18	NSS
Quaqtaq	CARS	168	179	94%	181	186	97%	9	17	NSS
Quebec City	ATS	711	811	88%	864	923	94%	63	102	62%
Red Lake	CWO	523	614	85%	585	643	91%	11	34	32%
Roberval	CWO	575	583	99%	588	596	99%	20	25	NSS
Rouyn-Noranda	ATS	776	849	91%	804	872	92%	27	66	41%
Sable Island	AWOS	104	161	65%	148	232	64%	64	373	17%
Saint John	ATS	482	664	73%	802	922	87%	105	361	29%
Sarnia	NCA	529	589	90%	568	626	91%	16	80	20%
Sault Ste Marie	ATS	840	901	93%	914	951	96%	44	99	45%
Schefferville	AWOS	762	844	90%	823	886	93%	32	92	35%
Sept-Îles	ATS	654	751	87%	729	837	87%	60	201	30%
Sherbrooke	NCA	390	429	91%	419	444	94%	32	45	NSS
Sioux Lookout	ATS	814	884	92%	871	908	96%	39	66	NSS
St Anthony	NCA	634	795	80%	756	918	82%	94	247	38%
St Catharines	ATS	202	228	89%	206	240	86%	10	49	NSS
St Hubert	NCA	724	827	88%	868	922	94%	40	70	58%
St John's	CWO	397	592	67%	824	1008	82%	121	351	34%
Stephenville	CWO	833	902	92%	895	963	93%	36	70	51%
Sudbury	CWO	770	841	92%	841	892	94%	49	84	58%
Sydney	CWO	454	585	78%	652	812	80%	136	566	24%
Tasiujaq	CARS	166	178	93%	168	179	94%	5	12	NSS
Thunder Bay	ATS/AA	783	856	92%	831	907	92%	23	55	42%
Timmins	ATS	768	811	95%	812	837	97%	9	18	NSS
Toronto City Centre	NCA	764	836	91%	850	921	92%	90	170	53%
Toronto LBPI	CWO	1399	1552	90%	1662	1750	95%	32	86	37%
Val-d'Or	AWOS/ATS	774	873	89%	866	921	94%	18	49	36%
Wabush	ATS	733	788	93%	828	853	97%	16	32	NSS
Waskaganish	CARS	120	123	97%	122	123	99%	14	17	NSS
Waterloo/Wellington	NCA	552	615	90%	627	678	93%	30	65	46%
Wawa	CWO	179	200	89%	179	198	90%	12	45	NSS
Wiarton	CWO	371	434	85%	397	453	88%	16	48	32%
Windsor	CWO	806	877	92%	946	984	96%	47	110	43%
Yarmouth	CWO	423	561	75%	571	684	84%	95	558	17%
Canadian Meteorological Aviation Centre/West (Edmonton)
Station		VFR Category			Above IFR Alternate Category			Below IFR Alternate Category
Station	Station Type	Correct Forecasts (hours)	Total Forecasts (hours)	Reliability Index	Correct Forecasts (hours)	Total Forecasts (hours)	Alternate Reliability Index	Incorrect Forecasts (hours)	Total Forecasts (hours)	*Below Alternate False Alarm Ratio
Abbotsford	CWO	831	884	94%	889	913	97%	10	14	NSS
Arctic Bay	AWS	106	108	98%	117	117	100%	0	0	NSS
Arviat	AWOS/CARS	608	779	78%	710	867	82%	70	216	33%
Baker Lake	CARS	839	893	94%	896	920	97%	27	39	NSS
Bella Bella	AWOS	393	438	90%	328	405	81%	44	80	55%
Brandon	ATS	747	809	92%	799	862	93%	65	120	54%
Buffalo Narrows	CWO	388	388	100%	388	388	100%	1	1	NSS
Burwash	AWOS/CARS	763	786	97%	727	765	95%	32	46	NSS
Calgary Intl	CWO	1397	1468	95%	1621	1625	100%	8	9	NSS
Cambridge Bay	CARS	693	856	81%	775	934	83%	81	193	42%
Campbell River	ATS	392	407	96%	408	418	98%	2	5	NSS
Cape Dorset	AWOS/CARS	710	830	86%	745	846	88%	67	166	40%
Castlegar	ATS	418	418	100%	372	383	97%	21	36	NSS
Churchill	ATS/AA	620	781	79%	817	943	87%	28	142	20%
Clyde River	AWOS/CARS	650	824	79%	669	836	80%	102	226	45%
Coral Harbour	CARS	791	845	94%	802	852	94%	22	41	NSS
Cranbrook	ATS	803	816	98%	824	827	100%	4	5	NSS
Dauphin	NCA	729	831	88%	798	897	89%	41	107	38%
Dawson City	CARS	180	182	99%	179	181	99%	1	5	NSS
Dawson Creek	NCA	446	450	99%	446	450	99%	1	1	NSS
Deline	CARS	123	152	81%	123	152	81%	10	27	NSS
Edmonton Intl	CWO	1531	1541	99%	1546	1552	100%	4	8	NSS
Edmonton Muni	AWOS	819	832	98%	838	840	100%	9	10	NSS
Eureka	CWO	390	391	100%	393	393	100%	2	2	NSS
Faro	CARS	176	177	100%	171	171	100%	6	9	NSS
Fort Chipewyan	AWOS	193	198	98%	196	198	99%	4	5	NSS
Fort Good Hope	CARS	161	166	97%	161	166	97%	1	1	NSS
Fort McMurray	AWOS	807	910	89%	898	973	92%	26	58	44%
Fort McPherson	CARS	159	165	96%	159	165	96%	9	14	NSS
Fort Nelson	ATS	741	805	92%	827	846	98%	11	31	NSS
Fort Simpson	CARS	707	770	92%	724	781	93%	21	64	33%
Fort Smith	CARS	778	781	100%	789	792	100%	2	3	NSS
Fort St John	ATS	821	835	98%	833	841	99%	1	8	NSS
Gillam	CWO	689	833	83%	753	893	84%	30	194	15%
Gjoa Haven	AWOS/CARS	529	832	64%	620	904	69%	123	351	35%
Grande Prairie	ATS	860	882	98%	885	910	97%	6	23	NSS
Hall Beach	AWOS/CARS	748	838	89%	809	875	92%	65	129	51%
Hay River	CARS	850	876	97%	863	884	98%	7	12	NSS
High Level	ATS	845	863	98%	865	874	99%	5	8	NSS
Holman	CARS	127	129	99%	129	129	100%	6	7	NSS
Igloolik	CARS	251	268	94%	251	268	94%	14	33	NSS
Inuvik	ATS/AA	753	860	88%	854	918	93%	16	39	42%
Iqaluit	ATS/AA	868	907	96%	911	942	97%	19	35	NSS
Island Lake	CWO	727	805	90%	781	863	90%	24	124	19%
Kamloops	ATS	877	877	100%	825	844	98%	28	33	NSS
Kelowna	NCA	806	808	100%	806	808	100%	3	3	NSS
Kugaaruk	CARS	162	181	90%	169	186	91%	7	22	NSS
Kugluktuk	CARS	723	842	86%	745	865	86%	52	157	33%
La Ronge	ATS	776	820	95%	795	835	95%	10	24	NSS
Lethbridge	ATS/AWOS	806	848	95%	860	882	97%	14	35	NSS
Lloydminster	ATS/NCA	834	856	98%	849	866	98%	3	13	NSS
Lutselk'e	CARS	159	160	99%	159	160	99%	1	4	NSS
Lynn Lake	NCA	749	797	94%	789	832	95%	21	63	33%
Mackenzie	NCA	624	641	97%	624	641	97%	13	18	NSS
Masset	CWO	229	235	98%	238	244	98%	11	18	NSS
Mayo	CARS	792	807	98%	779	801	97%	8	16	NSS
Medicine Hat	ATS/NCA	793	819	97%	806	835	97%	15	39	NSS
Nanaimo	ATS	370	379	98%	373	384	97%	1	5	NSS
Norman Wells	ATS	750	790	95%	752	793	95%	38	59	NSS
North Battleford	NCA	821	826	99%	824	830	99%	10	11	NSS
Norway House	NCA	741	802	92%	779	829	94%	44	85	52%
Old Crow	CARS	371	373	99%	371	373	99%	9	9	NSS
Pangnirtung	LWIS/CARS	156	163	96%	87	101	87%	34	76	NSS
Paulatuk	CARS	169	190	89%	171	192	89%	7	23	NSS
Peace River	ATS	849	879	97%	886	893	99%	4	5	NSS
Penticton	ATS	803	803	100%	788	789	100%	14	14	NSS
Pond Inlet	AWOS/CARS	751	850	88%	756	852	89%	56	89	63%
Port Hardy	ATS	821	830	99%	848	849	100%	1	1	NSS
Prince Albert	ATS	773	807	96%	812	825	98%	3	8	NSS
Prince George	NCA	869	912	95%	914	935	98%	11	19	NSS
Prince Rupert	NCA	778	852	91%	853	897	95%	14	36	NSS
Qikiqtarjuaq	AWOS/CARS	711	843	84%	502	713	70%	126	284	45%
Quesnel	NCA	451	480	94%	449	475	95%	20	44	NSS
Rae Lake	CARS	110	116	95%	111	116	96%	7	14	NSS
Rankin Inlet	ATS	651	776	84%	728	845	86%	41	142	29%
Red Deer	ATS	817	871	94%	869	913	95%	19	48	NSS
Regina	ATS/AA	821	871	94%	917	931	98%	5	13	NSS
Repulse Bay	CARS	137	159	87%	139	159	87%	4	16	NSS
Resolute	CARS	672	822	82%	851	918	93%	48	78	61%
Sachs Harbour	CARS	108	119	91%	115	119	97%	3	3	NSS
Sandspit	NCA	877	917	96%	941	959	98%	6	10	NSS
Saskatoon	ATS/AA	810	855	95%	870	875	99%	5	6	NSS
Slave Lake	AWOS	821	868	95%	838	874	96%	45	60	NSS
Smithers	ATS/NCA	412	422	98%	412	422	98%	13	18	NSS
Springbank	CWO	390	409	95%	424	438	97%	21	29	NSS
Stony Rapids	NCA	599	606	99%	606	612	99%	3	8	NSS
Swift Current	AWOS	420	481	87%	446	500	89%	21	60	35%
Taloyoak	CARS	682	836	82%	750	889	84%	62	206	30%
Terrace	ATS	795	833	95%	859	874	98%	18	27	NSS
Teslin	CARS	186	188	99%	127	163	78%	2	27	NSS
The Pas	CWO	764	851	90%	830	879	94%	29	55	53%
Thompson	ATS	753	826	91%	865	905	96%	13	49	27%
Tofino	CWO	339	355	96%	345	360	96%	26	41	NSS
Tuktoyaktuk	CARS	370	388	95%	394	402	98%	30	35	NSS
Vancouver	CWO	1525	1561	98%	1592	1597	100%	1	2	NSS
Victoria	CWO	799	817	98%	833	836	100%	4	5	NSS
Victoria Harbour	ATS	375	376	100%	375	376	100%	4	7	NSS
Watson Lake	CARS	780	797	98%	792	810	98%	6	18	NSS
Whitecourt	ATS	185	188	98%	194	196	99%	3	7	NSS
Whitehorse	ATS	815	835	98%	833	842	99%	4	8	NSS
Williams Lake	ATS	858	945	91%	885	958	92%	20	48	42%
Winnipeg	ATS/AA	799	923	87%	1021	1060	96%	27	45	NSS
Yellowknife	ATS	764	787	97%	780	802	97%	15	29	NSS
Yorkton	CWO	542	600	90%	585	626	93%	24	46	NSS
*Note: NSS stands for Not Statistically Significant