Station List

Station CHQO3 - Winchester Arm, South Slough Reserve, OR

Owned and maintained by National Estuarine Research Reserve System
NERRS Water Quality Station
43.282 N 124.320 W (43°16'57" N 124°19'13" W)

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Regional HF Radar Surface Current Observations

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Ocean Conditions at CHQO3 as of
(4:15 pm PST on 02/18/2026)
0015 GMT on 02/19/2026:
These oceanographic data are displayed in rounded times. Unit of Measure: Time Zone: Click on the graph icon in the table below to see a time series plot of the last five days of that observation.
Depth (DEPTH):	3.6 ft
Ocean Temperature (OTMP):	45.14 °F
Conductivity (COND):	25.29 mS/cm
Salinity (SAL):	15.30 psu
Oxygen Saturation (O2PCT):	80.7%
Oxygen Concentration (O2PPM):	8.80 ppm
Turbidity (TURB):	4 FTU
pH (PH):	7.40

Previous observations
TIME (PST)	DEPTH ft	OTMP °F	COND mS/cm	SAL psu	O2% %	O2PPM ppm	CLCON ug/l	TURB FTU	PH	EH mV
2026-02-18 04:00 pm	3.9	46.76	34.82	21.80	78.10	8.00	-	3	7.60	-
2026-02-18 03:45 pm	4.3	46.76	34.80	21.70	75.40	7.70	-	3	7.60	-
2026-02-18 03:30 pm	4.6	46.58	34.84	21.80	79.90	8.20	-	4	7.60	-
2026-02-18 03:15 pm	4.9	46.04	30.13	18.50	80.40	8.50	-	4	7.50	-
2026-02-18 03:00 pm	5.2	46.04	31.16	19.20	80.50	8.50	-	4	7.50	-
2026-02-18 02:45 pm	5.9	46.40	33.31	20.70	80.60	8.30	-	4	7.60	-
2026-02-18 02:30 pm	6.2	46.58	34.51	21.50	80.90	8.30	-	4	7.60	-
2026-02-18 02:15 pm	6.6	46.58	34.72	21.70	81.10	8.30	-	4	7.60	-
2026-02-18 02:00 pm	6.6	46.76	35.72	22.40	81.90	8.40	-	4	7.60	-
2026-02-18 01:45 pm	6.9	46.76	36.59	23.00	82.10	8.30	-	4	7.60	-
2026-02-18 01:30 pm	7.2	46.76	36.92	23.20	81.90	8.30	-	4	7.60	-
2026-02-18 01:15 pm	7.5	46.76	37.14	23.30	80.10	8.10	-	4	7.60	-
2026-02-18 01:00 pm	7.5	46.76	37.26	23.40	81.10	8.20	-	4	7.70	-
2026-02-18 12:45 pm	7.5	46.94	37.28	23.40	78.00	7.90	-	3	7.60	-
2026-02-18 12:30 pm	7.5	46.76	37.20	23.40	80.90	8.20	-	4	7.60	-
2026-02-18 12:15 pm	7.5	46.76	36.92	23.20	82.30	8.30	-	4	7.60	-
2026-02-18 12:00 pm	7.5	46.76	36.20	22.70	82.30	8.40	-	5	7.60	-
2026-02-18 11:45 am	7.2	46.76	35.34	22.10	81.60	8.30	-	5	7.60	-
2026-02-18 11:30 am	6.9	46.58	34.18	21.30	79.50	8.20	-	6	7.60	-
2026-02-18 11:15 am	6.6	46.76	34.31	21.40	76.80	7.90	-	5	7.50	-
2026-02-18 11:00 am	6.2	46.76	33.18	20.60	76.90	7.90	-	5	7.50	-
2026-02-18 10:45 am	5.9	46.76	34.24	21.40	75.70	7.80	-	5	7.50	-
2026-02-18 10:30 am	5.2	46.76	33.57	20.90	75.90	7.80	-	5	7.50	-
2026-02-18 10:15 am	4.9	46.58	32.28	20.00	76.60	7.90	-	7	7.50	-
2026-02-18 10:00 am	4.6	45.86	27.66	16.90	77.20	8.30	-	7	7.30	-
2026-02-18 09:45 am	3.9	45.86	25.62	15.50	77.80	8.40	-	5	7.30	-
2026-02-18 09:30 am	3.6	45.50	23.88	14.40	78.20	8.50	-	5	7.20	-
2026-02-18 09:15 am	3.3	45.32	22.03	13.20	79.10	8.70	-	5	7.20	-
2026-02-18 09:00 am	3.0	44.60	17.38	10.20	81.20	9.20	-	9	7.00	-
2026-02-18 08:45 am	2.6	44.06	11.47	6.50	83.60	9.80	-	8	6.80	-
2026-02-18 08:30 am	2.6	42.98	0.97	0.50	86.40	10.70	-	10	6.70	-
2026-02-18 08:15 am	2.3	42.80	0.84	0.40	87.00	10.80	-	9	6.80	-
2026-02-18 08:00 am	2.0	42.80	0.64	0.30	87.90	10.90	-	10	6.80	-
2026-02-18 07:45 am	2.0	42.80	0.58	0.30	87.10	10.80	-	10	6.80	-
2026-02-18 07:30 am	1.6	42.80	0.58	0.30	86.40	10.80	-	9	6.80	-
2026-02-18 07:15 am	1.3	42.62	0.52	0.30	88.60	11.00	-	12	6.90	-
2026-02-18 07:00 am	1.3	42.80	0.55	0.30	88.40	11.00	-	14	6.90	-
2026-02-18 06:45 am	1.3	42.80	0.67	0.30	88.10	10.90	-	16	6.90	-
2026-02-18 06:30 am	1.6	42.98	1.28	0.60	87.50	10.80	-	17	6.90	-
2026-02-18 06:15 am	1.6	42.98	2.38	1.20	86.90	10.70	-	19	6.90	-
2026-02-18 06:00 am	2.0	43.34	4.63	2.50	86.00	10.50	-	14	6.90	-
2026-02-18 05:45 am	2.3	43.70	7.99	4.40	85.00	10.20	-	9	7.00	-
2026-02-18 05:30 am	2.6	44.60	17.40	10.20	83.10	9.40	-	6	7.20	-
2026-02-18 05:15 am	2.6	46.04	28.23	17.30	80.40	8.50	-	6	7.40	-
2026-02-18 05:00 am	3.0	46.58	32.03	19.80	79.90	8.30	-	5	7.50	-
2026-02-18 04:45 am	3.6	47.30	35.12	22.00	75.50	7.70	-	5	7.50	-
2026-02-18 04:30 am	3.6	47.48	36.21	22.70	74.50	7.50	-	5	7.50	-
2026-02-18 04:15 am	3.9	47.48	36.21	22.70	75.00	7.60	-	6	7.50	-
2026-02-18 04:00 am	4.3	47.30	35.35	22.10	77.50	7.90	-	4	7.60	-
2026-02-18 03:45 am	4.6	47.30	35.89	22.50	76.20	7.70	-	4	7.50	-
2026-02-18 03:30 am	4.9	47.30	35.81	22.40	76.20	7.70	-	4	7.50	-
2026-02-18 03:15 am	5.2	47.30	35.69	22.40	77.40	7.80	-	4	7.60	-
2026-02-18 03:00 am	5.2	47.30	36.10	22.60	77.00	7.80	-	5	7.60	-
2026-02-18 02:45 am	5.6	47.30	36.07	22.60	77.70	7.90	-	5	7.60	-
2026-02-18 02:30 am	5.9	47.48	36.21	22.70	76.50	7.70	-	4	7.60	-
2026-02-18 02:15 am	6.2	47.30	36.34	22.80	77.60	7.80	-	5	7.60	-
2026-02-18 02:00 am	6.2	47.48	36.48	22.90	77.50	7.80	-	5	7.60	-
2026-02-18 01:45 am	6.6	47.48	36.84	23.20	77.20	7.80	-	5	7.60	-
2026-02-18 01:30 am	6.9	47.48	37.16	23.40	76.80	7.70	-	5	7.60	-
2026-02-18 01:15 am	6.9	47.48	37.17	23.40	76.80	7.70	-	4	7.60	-
2026-02-18 01:00 am	6.9	47.48	36.87	23.20	77.50	7.80	-	6	7.60	-
2026-02-18 12:45 am	6.9	47.30	36.07	22.60	79.20	8.00	-	5	7.60	-
2026-02-18 12:30 am	6.6	47.30	35.11	22.00	80.80	8.20	-	6	7.60	-
2026-02-18 12:15 am	6.2	46.94	33.31	20.70	82.20	8.50	-	6	7.50	-
2026-02-18 12:00 am	6.2	46.58	31.83	19.70	82.90	8.60	-	7	7.50	-
2026-02-17 11:45 pm	5.9	46.58	30.42	18.80	84.00	8.80	-	9	7.50	-
2026-02-17 11:30 pm	5.2	46.76	28.54	17.50	85.30	9.00	-	9	7.40	-
2026-02-17 11:15 pm	4.9	46.40	25.71	15.60	86.10	9.20	-	10	7.30	-
2026-02-17 11:00 pm	4.6	45.32	15.42	9.00	86.50	9.80	-	12	6.90	-
2026-02-17 10:45 pm	3.9	44.06	4.47	2.40	86.80	10.50	-	17	6.70	-
2026-02-17 10:30 pm	3.6	44.06	2.65	1.40	87.10	10.60	-	19	6.70	-
2026-02-17 10:15 pm	3.0	43.88	2.15	1.10	87.80	10.70	-	23	6.70	-
2026-02-17 10:00 pm	2.6	43.88	1.59	0.80	88.70	10.80	-	17	6.70	-
2026-02-17 09:45 pm	2.3	44.06	1.12	0.60	89.40	10.90	-	14	6.70	-
2026-02-17 09:30 pm	2.0	44.24	0.92	0.50	89.40	10.90	-	11	6.70	-
2026-02-17 09:15 pm	1.6	44.24	0.67	0.30	89.30	10.90	-	10	6.70	-
2026-02-17 09:00 pm	1.0	44.42	0.66	0.30	89.10	10.80	-	12	6.70	-
2026-02-17 08:45 pm	0.7	44.42	0.67	0.30	89.00	10.80	-	13	6.70	-
2026-02-17 08:30 pm	0.3	44.42	0.66	0.30	89.70	10.90	-	13	6.70	-
2026-02-17 08:15 pm	0.3	44.42	0.69	0.30	89.80	10.90	-	16	6.70	-
2026-02-17 08:00 pm	0.3	44.42	0.71	0.40	89.80	10.90	-	16	6.70	-
2026-02-17 07:45 pm	0.3	44.42	0.75	0.40	89.90	10.90	-	15	6.70	-
2026-02-17 07:30 pm	0.3	44.60	0.78	0.40	89.90	10.90	-	19	6.70	-
2026-02-17 07:15 pm	0.3	44.60	0.80	0.40	89.90	10.90	-	19	6.80	-
2026-02-17 07:00 pm	0.3	44.60	0.84	0.40	89.80	10.90	-	21	6.80	-
2026-02-17 06:45 pm	0.3	44.60	0.88	0.40	89.70	10.90	-	20	6.80	-
2026-02-17 06:30 pm	0.3	44.78	0.92	0.50	89.60	10.80	-	53	6.80	-
2026-02-17 06:15 pm	0.3	44.96	0.97	0.50	89.40	10.80	-	24	6.80	-
2026-02-17 06:00 pm	0.7	44.96	1.02	0.50	89.10	10.70	-	36	6.80	-
2026-02-17 05:45 pm	0.7	45.14	1.10	0.60	88.80	10.70	-	32	6.80	-
2026-02-17 05:30 pm	1.0	45.14	1.23	0.60	88.70	10.60	-	37	6.80	-
2026-02-17 05:15 pm	1.3	45.14	1.80	0.90	88.50	10.60	-	22	6.90	-
2026-02-17 05:00 pm	1.6	45.32	3.35	1.80	88.40	10.50	-	23	6.90	-

Description of Measurements

Historical data for station CHQO3 are available at the NERRS website.

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