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NDBC is adding additional data to its .drift file format on or about August 17. For more info, see the Drift File Format Change Notice.

Station CHCM2 - Search and Rescue Data

8573927 - Chesapeake City, MD
39.527 N 75.810 W (39°31'39" N 75°48'36" 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
08-13-2022	1200Z	356	4	60	-	67	60	84	60
08-13-2022	0600Z	357	3	60	-	68	60	84	60
08-13-2022	0000Z	328	2	57	-	75	57	85	57
08-12-2022	1800Z	354	5	60	-	80	60	85	60
08-12-2022	1200Z	359	4	60	-	72	60	85	60
08-12-2022	0600Z	343	3	60	-	76	60	86	60
08-12-2022	0000Z	274	2	54	-	80	59	86	59
08-11-2022	1800Z	316	6	60	-	82	60	86	60
08-11-2022	1200Z	286	3	60	-	75	60	85	60
08-11-2022	0600Z	273	3	60	-	75	60	86	60
08-11-2022	0000Z	263	2	56	-	82	58	87	58
08-10-2022	1800Z	327	5	60	-	86	60	86	60
08-10-2022	1200Z	328	2	60	-	79	60	86	60
08-10-2022	0600Z	271	1	60	-	77	60	86	60
08-10-2022	0000Z	248	2	55	-	87	57	86	54
08-09-2022	1800Z	236	7	60	-	90	60	86	58
08-09-2022	1200Z	238	4	60	-	82	60	85	60
08-09-2022	0600Z	226	3	58	-	81	58	85	58
08-09-2022	0000Z	215	4	55	-	86	60	86	60
08-08-2022	1800Z	246	5	60	-	88	60	85	60

The six-hour averages are calculated as follows: