TROPICAL CYCLONES IN 2012

SIX-HOURLY POSITION AND INTENSITY DATA OF SEVERE TYPHOON PRAPIROON (1221)

Month	Date	Time (UTC)	Intensity	Estimated minimum central pressure (hPa)	Estimated maximum surface winds (m/s)	Lat. °N	Long. °E
OCT	7	0600	T.D.	1000	13	17.7	137.4
		1200	T.D.	998	16	17.8	136.6
		1800	T.S.	992	21	17.9	136.0
	8	0000	S.T.S.	985	25	18.0	135.5
		0600	S.T.S.	980	28	18.0	135.0
		1200	S.T.S.	975	31	18.4	133.8
		1800	T.	970	33	18.1	133.3
	9	0000	T.	970	33	17.9	132.6
		0600	T.	970	33	17.7	132.2
		1200	T.	970	33	17.9	132.0
		1800	T.	965	36	18.2	131.7
	10	0000	T.	965	36	18.3	130.8
		0600	T.	955	41	18.6	130.4
		1200	S.T.	950	43	18.6	129.9
		1800	S.T.	950	43	18.8	129.4
	11	0000	S.T.	950	43	19.1	129.0
		0600	S.T.	950	43	19.4	128.6
		1200	S.T.	945	46	19.4	128.4
		1800	S.T.	945	46	19.6	128.5
	12	0000	S.T.	945	46	19.6	128.6
		0600	S.T.	945	46	20.0	128.9
		1200	S.T.	945	46	20.2	129.3
		1800	S.T.	950	43	20.5	129.5
	13	0000	T.	955	41	20.8	129.7
		0600	T.	955	41	21.1	129.9
		1200	T.	955	41	21.4	129.9
		1800	T.	960	39	21.6	130.4
	14	0000	T.	960	39	21.9	130.8
		0600	T.	960	39	22.2	130.9
		1200	T.	960	39	22.5	131.3
		1800	T.	960	39	22.7	131.5
	15	0000	T.	960	39	22.7	131.2
		0600	T.	960	39	22.6	131.1
		1200	T.	965	36	22.4	131.0
		1800	T.	965	36	22.2	130.5
	16	0000	T.	970	33	21.8	130.0
		0600	T.	970	33	21.6	129.4
		1200	S.T.S.	975	31	22.2	128.9
		1800	S.T.S.	980	28	22.5	128.6
	17	0000	S.T.S.	980	28	23.2	128.4
		0600	S.T.S.	980	28	24.2	128.7
		1200	S.T.S.	982	25	25.0	129.5
		1800	S.T.S.	982	25	25.9	130.4
	18	0000	S.T.S.	982	25	27.2	132.2
		0600	S.T.S.	982	25	28.7	134.1
		1200	S.T.S.	982	25	30.3	136.4
		1800	S.T.S.	982	25	31.2	139.6
	19	0000	S.T.S.	982	25	32.5	142.5
		0600	S.T.S.	982	25	32.7	145.9
	Became Extratropical