Station HLNM4 - Search and Rescue Data

9087031 - Holland, MI
42.773 N 86.213 W (42°46'24" N 86°12'46" W)

Average surface winds - six hour block.

Date (UTC)	Average Wind Dir (True)	Average Wind Spd (Knots)	Wind Obs	Average Seas (Feet)	Air Temp. (Degrees F.)	Air Temp. Obs	Water Temp. (Degrees F.)	Water Temp. Obs
2026-03-14 1200Z	349	8	60	-	31	22	39	42
2026-03-14 0600Z	322	21	60	-	34	16	41	48
2026-03-14 0000Z	288	27	60	-	37	24	38	39
2026-03-13 1800Z	256	30	60	-	38	20	37	45
2026-03-13 1200Z	192	24	60	-	39	28	40	45
2026-03-13 0600Z	138	15	58	-	39	20	42	54
2026-03-13 0000Z	146	6	56	-	36	21	43	49
2026-03-12 1800Z	262	8	60	-	35	25	40	36
2026-03-12 1200Z	283	8	60	-	35	24	39	42
2026-03-12 0600Z	306	15	60	-	36	24	43	51
2026-03-12 0000Z	313	23	60	-	35	22	42	54
2026-03-11 1800Z	308	20	60	-	34	22	41	39
2026-03-11 1200Z	28	6	60	-	40	25	40	48
2026-03-11 0600Z	76	14	60	-	41	25	38	52
2026-03-11 0000Z	75	18	60	-	43	25	36	57
2026-03-10 1800Z	212	1	57	-	37	24	35	45
2026-03-10 1200Z	175	9	60	-	44	33	34	60
2026-03-10 0600Z	170	13	57	-	47	30	35	57
2026-03-10 0000Z	170	13	60	-	45	26	34	57
2026-03-09 1800Z	170	13	58	-	42	24	34	54

The six-hour averages are calculated as follows: