Metric (Imperial)

Date	Time (cdt)	Wind (kph)	Vis. (km)	Weather	Sky Cond.	Temperature (ºC)				Relative Humidity	Wind Chill (°C)	Heat Index (°C)	Pressure		Precipitation (cm)
						Air	Dwpt	6 hour					altimeter (cm)	sea level (mb)	1 hr	3 hr	6 hr
								Max.	Min.
20	13:35	N 7	16.09	Overcast	OVC049	10.5	-1.3			44%			76.99	0.0
20	13:15	NE 9	16.09	Overcast	OVC049	10.5	-1.7			43%			76.99	0.0
20	12:55	NW 9	16.09	Overcast	OVC047	10.6	-1.1	10.6	4.6	45%			77.01	0.0
20	12:35	N 13	16.09	Overcast	OVC049	10.3	-1.4			44%			76.99	0.0
20	12:15	NW 7	16.09	Overcast	OVC049	10.4	-1.4			44%			76.99	0.0
20	11:55	N 9	16.09	Mostly Cloudy	BKN049	9.8	-1.9			44%	9		76.99	0.0
20	11:35	NE 11 G 28	16.09	Mostly Cloudy	BKN049	9.5	-1.7			46%	8		76.99	0.0
20	11:15	NW 7	16.09	Mostly Cloudy	BKN042 BKN050	9.3	-3.5			41%	9		76.99	0.0
20	10:55	NW 11	16.09	Overcast	BKN039 OVC045	9	-1.2			49%	8		76.99	0.0
20	10:15	N 6	16.09	Overcast	SCT035 BKN040 OVC047	8.1	0.1			57%			76.99	0.0
20	09:55	N 15	16.09	Mostly Cloudy	SCT033 SCT042 BKN049	9	0.4			55%	7		76.99	0.0
20	09:15	NW 13	16.09	Overcast	OVC049	7.1	0.3			62%	5		76.99	0.0
20	08:35	N 9	16.09	Overcast	BKN025 BKN029 OVC049	6.3	0.6			67%	5		76.96	0.0
20	08:15	NW 6	16.09	Overcast	SCT023 OVC047	6	1			71%			76.96	0.0
20	07:55	N 7	16.09	Overcast	OVC047	5.5	0.8			72%	4		76.94	0.0
20	07:35	NW 9	16.09	Overcast	SCT027 SCT041 OVC047	5.1	0.8			74%	3		76.94	0.0
20	07:15	NW 6	16.09	Overcast	OVC047	4.7	0.6			75%			76.94	0.0
20	06:55	Calm	16.09	Overcast	OVC047	4.5	0.8	5.7	4.1	77%			76.91	0.0
20	06:35	NW 6	16.09	Overcast	OVC047	4.5	0.7			77%			76.89	0.0
20	06:15	NW 6	16.09	Light Drizzle	OVC045	4.2	1.6			83%			76.89	0.0
20	05:55	Calm	16.09	Overcast	OVC043	4.1	1.5			83%			76.84	0.0
20	05:35	Calm	16.09	Overcast	OVC043	4.1	1.5			83%			76.81	0.0
20	05:15	Calm	16.09	Overcast	OVC043	4.2	1.5			83%			76.81	0.0
20	04:55	Calm	16.09	Overcast	OVC045	4.3	1.4			82%			76.81	0.0
20	04:35	N 9	16.09	Overcast	OVC045	4.5	1.4			81%	3		76.78	0.0
20	04:15	NW 6	16.09	Overcast	OVC045	4.5	1.3			80%			76.76	0.0
20	03:55	N 9	16.09	Overcast	OVC043	4.8	1.2			78%	3		76.73	0.0
20	03:35	NW 7	16.09	Overcast	OVC041	5	1.2			77%	4		76.71	0.0
20	03:15	N 13	16.09	Overcast	OVC043	5.1	2.2			82%	3		76.66	0.0
20	02:55	N 6	16.09	Overcast	OVC043	5.3	2.4			82%			76.68	0.0
20	02:35	NW 6	16.09	Overcast	OVC041	5.3	2.6			83%			76.68	0.0
20	02:15	NW 6	16.09	Overcast	OVC041	5.5	2.6			82%			76.68	0.0
20	01:55	NW 7	16.09	Overcast	BKN041 OVC046	5.4	3			85%	4		76.68	0.0
20	01:35	NW 9	16.09	Light Rain	SCT030 SCT037 OVC044	5.5	3.1			85%	4		76.66	0.0
20	01:15	NW 6	16.09	Mostly Cloudy	BKN044	5.6	3.2			85%			76.66	0.0
20	00:55	NW 6	16.09	Mostly Cloudy	SCT035 BKN048	5.5	3	9	5.5	84%			76.63	0.0
20	00:35	NW 7	16.09	Overcast	OVC035	5.9	3.1			82%	5		76.61	0.0
20	00:15	NW 6	16.09	Mostly Cloudy	BKN035	6	3.3			83%			76.61	0.0
19	23:55	W 6	16.09	Partly Cloudy	SCT031 SCT038	5.9	3.5			85%			76.58	0.0
19	23:35	NW 9	16.09	Light Rain	SCT028 SCT033 BKN040	6.3	3.6			83%	5		76.53	0.0
19	22:55	NW 7	16.09	Overcast	SCT029 BKN035 OVC041	6.7	4			83%	6		76.5	0.0
19	22:35	NW 13	16.09	Mostly Cloudy	BKN036	7	4.4			84%	5		76.5	0.0
19	22:15	NW 11	16.09	Mostly Cloudy	SCT021 SCT028 BKN034	7.1	4.6			84%	5		76.5	0.0
19	21:55	NW 7	16.09	Light Rain	SCT021 BKN030 OVC038	7.5	5			84%	6		76.48	0.0
19	21:35	NW 6	16.09	Mostly Cloudy	SCT028 SCT033 BKN038	7.3	4.9			85%			76.43	0.0
19	21:15	NW 11	16.09	Light Rain	SCT028 BKN037 BKN047	7.7	4.8			82%	6		76.38	0.0
19	20:55	NW 11	16.09	Mostly Cloudy	SCT030 SCT037 BKN048	8	4.1			77%	6		76.38	0.0
19	20:35	W 11	16.09	Overcast	SCT030 SCT038 OVC046	8.6	4			73%	7		76.33	0.0
19	20:15	W 9	16.09	Overcast	SCT035 OVC047	8.9	4			72%	8		76.33	0.0
19	19:55	W 7	16.09	Overcast	SCT025 BKN034 OVC045	8.8	4.5			75%	8		76.33	0.0
19	19:35	W 6	16.09	Overcast	OVC034	8.8	4.9			77%			76.3	0.0
19	19:15	NW 6	16.09	Overcast	OVC034	8.7	5			78%			76.28	0.0
19	18:55	NW 6	16.09	Overcast	SCT019 OVC034	8.6	5	11.9	8	78%			76.28	0.0
19	18:35	W 9	16.09	Overcast	SCT015 BKN021 OVC028	8.5	5.4			81%	7		76.25	0.0
19	18:15	NW 7	16.09	Overcast	BKN015 BKN026 OVC035	8.5	6.2			86%	8		76.25	0.0
19	17:55	NW 13	16.09	Overcast	OVC015	8	6.2			89%	6		76.23	0.0
19	17:35	NW 15	6.44	Rain	SCT013 BKN018 OVC032	8.4	6.7			89%	6		76.2	0.0
19	17:15	NW 11	11.27	Overcast	SCT017 BKN024 OVC032	8.9	7.1			89%	7		76.17	0.0
19	16:55	NW 9	16.09	Light Rain	BKN019 BKN024 OVC030	10	6.4			79%	9		76.17	0.0
19	16:35	NW 11	16.09	Light Rain	BKN017 BKN024 OVC031	9.9	6.6			80%	9		76.15	0.0
19	16:15	NW 13 G 30	11.27	Light Drizzle	BKN019 OVC025	9.4	6.7			83%	8		76.12	0.0
19	15:55	W 15	16.09	Overcast	BKN020 OVC026	10.6	6.5			76%			76.07	0.0
19	15:35	NW 9	16.09	Overcast	OVC022	11	6.4			74%			76.07	0.0
19	15:15	NW 19 G 31	16.09	Overcast	OVC024	11	6			72%			76.07	0.0
19	14:55	W 19 G 30	16.09	Overcast	OVC028	11.6	5.7			67%			76.02	0.0
19	14:35	W 15 G 33	16.09	Overcast	BKN020 BKN027 OVC034	11.9	6.1			68%			76.02	0.0
19	14:15	W 15	16.09	Overcast	OVC020	10.8	6.2			73%			76.02	0.0
19	13:55	W 15 G 30	16.09	Overcast	OVC020	10.5	6.1			74%			76	0.0
19	13:35	W 11 G 30	16.09	Overcast	BKN020 OVC024	10.7	6.2			74%			75.97	0.0
19	13:15	NW 17	16.09	Overcast	OVC020	10.6	6.2			74%			75.97	0.0
19	12:55	W 13 G 26	16.09	Overcast	OVC018	10.4	6.2	17.5	7.1	75%			75.95	0.0
19	12:15	W 13 G 26	16.09	Overcast	OVC016	10.2	6.3			77%			75.9	0.0
19	11:55	W 11	16.09	Overcast	OVC012	9.9	6.5			80%	9		75.87	0.0
19	11:35	W 11 G 26	16.09	Overcast	OVC012	9	6.2			83%	8		75.87	0.0
19	11:15	NW 11	16.09	Overcast	OVC012	8.5	6			84%	7		75.84	0.0
19	10:55	W 11	16.09	Overcast	OVC010	9.2	6.2			82%	8		75.82	0.0
19	10:35	W 11	16.09	Overcast	OVC010	9.1	6.2			82%	8		75.77	0.0
19	10:15	NW 13	16.09	Overcast	OVC010	9	6.1			82%	7		75.79	0.0
19	09:55	NW 15	16.09	Overcast	OVC010	8.5	6.4			87%	6		75.74	0.0
19	09:35	NW 17 G 28	16.09	Overcast	BKN010 BKN029 OVC095	8.4	6.1			86%	6		75.74	0.0
19	09:15	NW 13	16.09	Overcast	SCT027 BKN034 OVC095	8.1	6.3			89%	6		75.72	0.0
19	08:55	NW 11	16.09	Overcast	SCT006 SCT017 OVC025	7.3	6.1			92%	5		75.72	0.0
19	08:35	NW 9	11.27	Overcast	SCT006 OVC017	7.2	6.9			98%	6		75.69	0.0
19	07:55	W 11	8.05	Light Drizzle	BKN004 OVC010	8.4	8.3			99%	7		75.64	0.0
19	07:35	NW 15 G 33	16.09	Overcast	BKN004 BKN008 OVC014	11.6	11.3			98%			75.57	0.0
19	07:15	SW 11	16.09	Light Rain	BKN014 OVC021	17.3	16.8			97%			75.44	0.0
19	06:55	SW 7	16.09	Overcast	BKN013 BKN022 OVC027	17.5	16.9	17.5	14.1	96%			75.44	0.0			0.03
19	06:35	SW 9	16.09	Overcast	SCT016 OVC024	17.3	17			98%			75.41	0.0
19	06:15	S 7	16.09	Overcast	SCT015 BKN024 OVC055	17.1	17.1			100%			75.41	0.0
19	05:55	SW 11	16.09	Mostly Cloudy	SCT050 SCT065 BKN085	17	17			100%			75.41	0.0
19	05:35	S 9	16.09	Partly Cloudy	SCT085	17	17			100%			75.41	0.0
19	05:15	S 9	16.09	Fair	CLR	17	17			100%			75.39	0.0
19	04:55	S 11	16.09	Mostly Cloudy	SCT006 SCT055 BKN100	17.1	17.1			100%			75.41	0.0
19	04:35	S 7	16.09	Overcast	SCT006 OVC100	17.1	17.1			100%			75.41	0.0
19	04:15	S 7	16.09	Overcast	BKN006 BKN095 OVC120	17.1	17.1			100%			75.41	0.0
19	03:55	S 9	16.09	Overcast	BKN006 OVC090	17	17			100%			75.44	0.0		0.03
19	03:35	S 9	16.09	Overcast	SCT006 SCT060 OVC080	16.6	16.6			100%			75.46	0.0
19	03:15	S 9	16.09	Overcast	SCT006 SCT060 OVC090	16.3	16.3			100%			75.46	0.0
19	02:55	S 9	16.09	Mostly Cloudy	BKN012 BKN060 BKN100	15.6	15.6			100%			75.51	0.0
19	02:35	S 7	16.09	Mostly Cloudy	BKN012 BKN060 BKN120	15.5	15.5			100%			75.57	0.0
19	02:15	S 9	16.09	Fair	CLR	15.1	15.1			100%			75.59	0.0
19	01:55	S 7	16.09	Partly Cloudy	SCT100	14.8	14.8			100%			75.59	0.0	0.03
19	01:35	S 6	16.09	Partly Cloudy	SCT110	14.5	14.5			100%			75.59	0.0	0.03
19	01:15	SW 6	16.09	Mostly Cloudy	SCT020 SCT031 BKN110	14.3	14.3			100%			75.59	0.0	0.03
19	00:55	E 15	11.27	Thunderstorm Light Rain	SCT020 BKN030 OVC110	14.1	14.1	20.5	14.1	100%			75.64	0.0	0.1		0.1
19	00:35	E 6	11.27	Thunderstorm Rain	SCT021 BKN029 OVC042	14.5	13.6			94%			75.72	0.0	0.05
19	00:15	Calm	16.09	Thunderstorm Light Rain in Vicinity	SCT035 BKN043 BKN110	15.1	12.9			87%			75.72	0.0
18	23:55	E 7	16.09	Partly Cloudy	SCT110	15	12.7			86%			75.64	0.0
18	23:35	E 7	16.09	Mostly Cloudy	SCT060 BKN110	15	12.5			85%			75.64	0.0
18	23:15	Calm	16.09	Overcast	OVC060	15	12.2			83%			75.69	0.0
18	22:55	Calm	16.09	Overcast	OVC060	14.7	12			84%			75.67	0.0
18	22:15	E 6	16.09	Overcast	OVC060	14.7	11.8			83%			75.72	0.0
18	21:50	NE 7	16.09	Overcast	OVC060	14.9	11.8			82%			75.72	0.0
18	21:35	NE 7	16.09	Overcast	OVC060	15.1	12			82%			75.72	0.0
18	21:15	NE 6	16.09	Overcast	SCT036 SCT043 OVC060	15.7	12.5			81%			75.77	0.0
18	20:55	N 7	16.09	Overcast	SCT038 OVC060	16	12.5			80%			75.74	0.0
18	20:35	N 11	16.09	Overcast	SCT038 SCT047 OVC060	16.1	12.5			79%			75.72	0.0
18	20:15	NE 13	16.09	Overcast	SCT039 OVC060	16.7	12.6			77%			75.72	0.0
18	19:35	N 17	16.09	Partly Cloudy	SCT060	18.4	13.1			71%			75.74	0.0
18	19:15	N 15	16.09	Partly Cloudy	SCT060	19.9	13.8			68%			75.72	0.0
18	18:55	N 13	16.09	Partly Cloudy	SCT041 SCT047 SCT060	20.5	14.3	25.9	20.5	68%			75.67	0.0
18	18:35	N 15	16.09	Mostly Cloudy	BKN043 BKN050 BKN060	21.1	14.5			66%			75.64	0.0
18	18:15	N 11	16.09	Mostly Cloudy	SCT043 BKN050	21.6	14.7			65%			75.64	0.0
18	17:55	N 11	16.09	Mostly Cloudy	SCT045 BKN060	22	14.9			64%			75.64	0.0
18	17:35	N 13	16.09	Overcast	BKN043 BKN050 OVC060	22.4	14.9			63%			75.64	0.0
18	17:15	NW 9	16.09	Overcast	SCT045 BKN050 OVC060	24	14.2			54%		25	75.64	0.0
18	16:55	SW 6	16.09	Mostly Cloudy	SCT049 BKN060	24.4	13.7			51%		26	75.62	0.0
18	16:35	W 7	16.09	Overcast	OVC060	24.2	13.9			53%		25	75.64	0.0
18	16:15	W 6	16.09	Overcast	SCT047 OVC060	24.1	13.6			52%		25	75.64	0.0
18	15:55	W 9	16.09	Mostly Cloudy	SCT044 BKN050	24.7	13.5			50%		26	75.64	0.0
18	15:35	W 6	16.09	Mostly Cloudy	SCT040 BKN048	25.1	14			50%		26	75.64	0.0
18	15:15	W 9	16.09	Partly Cloudy	BKN042 SCT048	25.1	13.9			50%		26	75.64	0.0
18	14:55	Calm	16.09	Partly Cloudy	SCT042	23.8	13.6			53%			75.64	0.0
18	14:35	W 9	16.09	Partly Cloudy	SCT039	25	13.5			49%		26	75.64	0.0
18	13:55	W 7	16.09	Mostly Cloudy	BKN037 BKN044 BKN050	23.5	13.7			54%			75.64	0.0
18	13:35	SW 9	16.09	Overcast	BKN039 OVC044	23.1	13.6			55%			75.67	0.0
18	13:15	SW 15 G 28	16.09	Mostly Cloudy	BKN039	23.9	13.5			52%		25	75.64	0.0
18	12:55	SW 15	16.09	Partly Cloudy	SCT033	23.2	13.6	23.5	12.5	55%			75.64	0.0
18	12:35	S 6	16.09	Partly Cloudy	SCT031	22.6	14.2			59%			75.64	0.0
18	12:15	W 11	16.09	Partly Cloudy	SCT022 SCT029	22.9	15			61%			75.64	0.0
18	11:55	S 9	16.09	Partly Cloudy	SCT020 SCT090	20.6	14.5			68%			75.64	0.0
18	11:35	SW 7	16.09	Partly Cloudy	SCT013	19.6	14.6			73%			75.64	0.0
18	11:15	S 11 G 28	16.09	Mostly Cloudy	BKN015	18.6	14.7			78%			75.64	0.0
18	10:55	S 17 G 26	16.09	Partly Cloudy	SCT011	19.2	15.4			79%			75.64	0.0
18	10:35	SW 6	16.09	Partly Cloudy	SCT007	17.2	14.4			84%			75.59	0.0
18	10:15	SW 6	16.09	Mostly Cloudy	BKN005 BKN110	15.9	15			94%			75.59	0.0
18	09:55	SW 6	16.09	Overcast	OVC005	14.5	14.5			100%			75.62	0.0
18	09:35	S 9	16.09	Overcast	OVC005	14	14			100%			75.64	0.0
18	09:15	S 6	16.09	Overcast	OVC005	13.5	13.5			100%			75.64	0.0
18	08:55	S 9	11.27	Overcast	OVC005	13.4	13.4			100%			75.67	0.0
18	08:35	SW 7	11.27	Overcast	OVC003	13.3	13.3			100%			75.67	0.0
18	08:15	SW 6	8.05	Fog/Mist	OVC003	13.1	13.1			100%			75.64	0.0
18	07:55	SW 7	8.05	Fog/Mist	OVC003	13	13			100%			75.64	0.0
18	07:35	SW 11	8.05	Fog/Mist	OVC003	12.8	12.8			100%			75.62	0.0
18	07:15	SW 6	8.05	Fog/Mist	OVC003	12.8	12.8			100%			75.57	0.0
18	06:55	S 6	11.27	Overcast	OVC005	12.5	12.5	12.5	10	100%			75.51	0.0			0.84
18	06:15	Calm	16.09	Overcast	OVC005	12.2	12.2			100%			75.51	0.0
18	05:55	Calm	16.09	Overcast	OVC003	12.1	12.1			100%			75.46	0.0
18	05:30	S 7	16.09	Overcast	OVC003	12	12			100%			75.46	0.0
18	05:15	S 7	16.09	Overcast	OVC003	12	12			100%			75.44	0.0
18	04:55	SE 13	16.09	Overcast	OVC003	12	12			100%			75.39	0.0
18	04:35	SE 9	16.09	Overcast	OVC003	11.5	11.5			100%			75.44	0.0
18	04:15	SE 11	16.09	Overcast	OVC003	11.1	11.1			100%			75.46	0.0
18	03:55	SE 7	16.09	Mostly Cloudy	BKN003 BKN008	11	11			100%			75.49	0.0	0.2	0.84
18	03:35	S 7	16.09	Mostly Cloudy	BKN003 BKN012 BKN025	10.7	10.7			100%			75.51	0.0	0.2
18	03:15	E 11	8.05	Rain	SCT003 BKN034 OVC043	10.6	10.6			100%			75.59	0.0	0.18
18	02:55	S 6	6.44	Thunderstorm Heavy Rain in Vicinity	SCT005 BKN034 OVC090	10.5	10.5			100%			75.72	0.0	0.41
18	02:35	SE 9	11.27	Thunderstorm Rain	SCT005 BKN020 OVC100	10.3	10.3			100%			75.64	0.0	0.25
18	01:55	Calm	6.44	Thunderstorm Heavy Rain in Vicinity	OVC005	10.5	10.5			100%			75.72	0.0	0.2
17	23:15	E 13	8.05	Fog/Mist	OVC003	9.7	9.7			100%	8		75.77	0.0
17	22:50	SE 11	11.27	Overcast	OVC003	9.7	9.7			100%	8		75.82	0.0
17	22:35	SE 11	8.05	Fog/Mist	OVC003	9.6	9.6			100%	8		75.87	0.0
17	22:15	SE 11	8.05	Fog/Mist	OVC003	9.5	9.5			100%	8		75.87	0.0
17	21:55	SE 15	8.05	Fog/Mist	OVC003	9.4	9.4			100%	7		75.82	0.0
17	21:35	SE 13	16.09	Overcast	OVC003	9.3	9.3			100%	8		75.87	0.0
17	21:15	SE 11	16.09	Overcast	OVC005	9.2	9.2			100%	8		75.92	0.0
17	20:55	SE 15	16.09	Overcast	OVC005	9.1	9.1			100%	7		75.9	0.0
17	20:35	SE 13	8.05	Light Rain	OVC007	9.1	9			99%	7		75.9	0.0
17	20:15	SE 19 G 26	16.09	Light Drizzle	OVC007	9.2	8.8			97%	7		75.92	0.0
17	19:55	SE 11	16.09	Overcast	OVC009	9.2	8.7			97%	8		75.95	0.0
17	19:35	SE 13	8.05	Light Drizzle	OVC011	9.3	8.5			95%	8		75.95	0.0
17	19:15	SE 15 G 26	6.44	Rain	OVC013	9.7	8.1			90%	8		75.95	0.0
17	18:55	SE 11	8.05	Fog/Mist	OVC015	10.1	7.8	13	10.1	86%			75.92	0.0
17	18:35	E 11	11.27	Overcast	BKN017 OVC022	10.3	7.5			83%			75.92	0.0
17	18:15	E 15	6.44	Overcast with Haze	SCT017 BKN023 OVC029	10.5	7.3			81%			75.9	0.0
17	17:55	E 13	16.09	Overcast	BKN019 OVC031	10.8	6.7			76%			75.92	0.0
17	17:35	E 15	16.09	Overcast	OVC021	10.7	6.5			75%			75.95	0.0
17	17:15	E 19 G 26	16.09	Overcast	BKN021 BKN028 OVC040	10.8	6.1			73%			75.95	0.0
17	16:55	E 13	16.09	Overcast	BKN023 BKN029 OVC037	11	6.1			72%			75.95	0.0
17	16:35	E 13	16.09	Overcast	BKN025 BKN032 OVC046	11.5	6.3			71%			75.97	0.0
17	16:15	SE 20 G 28	16.09	Overcast	SCT025 OVC050	11.7	5.8			67%			76	0.0
17	15:55	E 17 G 26	16.09	Overcast	OVC050	12.2	6			66%			76.02	0.0
17	15:35	E 19	16.09	Overcast	BKN065 BKN070 OVC080	12.6	6			64%			76.05	0.0
17	15:15	E 13	16.09	Overcast	SCT065 BKN075 OVC085	12.3	5.9			65%			76.05	0.0
17	14:55	E 17 G 28	16.09	Mostly Cloudy	BKN090	12.9	6.3			64%			76.05	0.0
17	14:35	E 15	16.09	Mostly Cloudy	SCT048 BKN090 BKN110	12.2	6.3			67%			76.07	0.0
17	14:15	E 13	16.09	Overcast	OVC080	11.6	6.7			72%			76.07	0.0
17	13:55	E 6	16.09	Overcast	SCT035 SCT060 OVC080	11.2	7.6			79%			76.12	0.0
Date	Time (cdt)	Wind (kph)	Vis. (km)	Weather	Sky Cond.	Air	Dwpt	Max.	Min.	Relative Humidity	Wind Chill (°C)	Heat Index (°C)	altimeter (cm)	sea level (mb)	1 hr	3 hr	6 hr
								6 hour
						Temperature (ºC)							Pressure		Precipitation (cm)