stno	year	month	day	hour	speed,kts	hg	cbl/msl hpa	sea_ht mtrs	stno	synop_no	year	month	day	hour	speed	msl
M3	2004	5	4	0	31		997.8	4.5	Roches Point	0	2004	5	4	0	23	993.8
	2004	5	4	1	33		996.2	4.7		0	2004	5	4	1	25	991.4
	2004	5	4	2	29		994.4	4.7		0	2004	5	4	2	22	990.0
	2004	5	4	3	32		992.8	5.1		0	2004	5	4	3	26	988.2
	2004	5	4	4	36		991.6	5.1		0	2004	5	4	4	17	987.1
	2004	5	4	5	36		990.4	5.7		0	2004	5	4	5	14	985.8
	2004	5	4	6	37		990.0	5.8		0	2004	5	4	6	18	984.8
	2004	5	4	7	36		989.6	6.3		0	2004	5	4	7	21	983.2
	2004	5	4	8	38		989.4	7.4		0	2004	5	4	8	23	982.3
										0	2004	5	4	9	36	981.5
	2004	5	4	10	35		989.4	8.3		0	2004	5	4	10	34	981.6
	2004	5	4	11	36		989.4	8.7		0	2004	5	4	11	32	981.1
	2004	5	4	12	34		988.8	9.0		0	2004	5	4	12	41	980.6
	2004	5	4	13	34		988.4	8.0		0	2004	5	4	13	33	980.0
										0	2004	5	4	14	38	979.4
	2004	5	4	15	34		988.0	7.8		0	2004	5	4	15	34	979.4
	2004	5	4	16	34		987.6	8.7		0	2004	5	4	16	37	978.7
	2004	5	4	17	32		988.4	7.3		0	2004	5	4	17	39	979.1
	2004	5	4	18	31		949.0	7.0		0	2004	5	4	18	43	979.7
	2004	5	4	19	32		989.6	8.1		0	2004	5	4	19	35	981.2
	2004	5	4	20	33		990.0	7.5		0	2004	5	4	20	38	982.2
	2004	5	4	21	33		990.6	7.7		0	2004	5	4	21	35	983.1
	2004	5	4	22	33		990.8	7.1		0	2004	5	4	22	37	983.3
										0	2004	5	4	23	30	983.9