Station List

NDBC has recently revised the NDBC Handbook of Automated Data Quality Control Checks and Procedures. The new document can be found on our Publications page.

Station GISL1 - Search and Rescue Data

8761724 - Grand Isle, LA
29.265 N 89.958 W (29°15'53" N 89°57'27" 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
2025-05-12 1800Z	261	9	60	-	71	48	76	60
2025-05-12 1200Z	238	7	60	-	69	37	76	55
2025-05-12 0600Z	257	9	60	-	70	42	77	60
2025-05-12 0000Z	263	7	59	-	71	35	76	56
2025-05-11 1800Z	357	3	60	-	72	41	76	60
2025-05-11 1200Z	337	7	60	-	66	42	76	60
2025-05-11 0600Z	342	9	60	-	69	48	76	58
2025-05-11 0000Z	251	3	59	-	74	39	76	59
2025-05-10 1800Z	304	11	60	-	71	48	75	60
2025-05-10 1200Z	321	13	57	-	68	39	74	60
2025-05-10 0600Z	344	11	60	-	69	44	76	60
2025-05-10 0000Z	56	8	55	-	70	42	76	57
2025-05-09 1800Z	193	2	57	-	70	41	76	60
2025-05-09 1200Z	60	3	60	-	75	44	76	60
2025-05-09 0600Z	115	2	60	-	74	45	76	60
2025-05-09 0000Z	151	3	12	-	74	12	76	12
2025-05-08 1200Z	43	7	33	-	71	36	76	26
2025-05-08 0600Z	335	4	60	-	72	51	76	60
2025-05-08 0000Z	81	10	58	-	72	46	76	58

The six-hour averages are calculated as follows:

The 0000Z average uses data from 2100Z to 0259Z.
The 0600Z average uses data from 0300Z to 0859Z.
The 1200Z average uses data from 0900Z to 1459Z.
The 1800Z average uses data from 1500Z to 2059Z.

Display all available SAR data (up to 45 days)

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