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
2026-02-21 1200Z	279	11	60	-	32	27	33	51
2026-02-21 0600Z	280	17	60	-	33	36	33	51
2026-02-21 0000Z	257	21	60	-	34	27	33	60
2026-02-20 1800Z	229	22	60	-	34	31	33	60
2026-02-20 1200Z	178	16	60	-	40	33	33	57
2026-02-20 0600Z	85	13	60	-	47	33	34	57
2026-02-20 0000Z	44	6	60	-	43	27	34	57
2026-02-19 1800Z	285	1	57	-	44	30	33	45
2026-02-19 1200Z	93	4	60	-	40	27	34	54
2026-02-19 0600Z	169	11	60	-	44	30	34	57
2026-02-19 0000Z	173	13	57	-	42	34	34	51
2026-02-18 1800Z	170	15	60	-	40	27	34	51
2026-02-18 1200Z	136	12	60	-	46	33	33	54
2026-02-18 0600Z	89	10	56	-	46	22	33	46
2026-02-18 0000Z	83	9	60	-	50	27	34	48
2026-02-17 1800Z	88	8	60	-	50	25	33	46
2026-02-17 1200Z	78	7	60	-	39	30	34	48
2026-02-17 0600Z	122	4	60	-	39	30	33	57
2026-02-17 0000Z	170	8	60	-	41	33	33	54
2026-02-16 1800Z	175	16	58	-	40	27	33	48

The six-hour averages are calculated as follows: