Tide station · California
Mad River Slough, Arcata Bay tides
Times are local (America/Los_Angeles, GMT-8). Predicted tides, not live water levels. Not for navigation.
Right now
Rising
Next high 3:35 AM, 7.4 ft (2.24 m), in 1 h 13 min.
Today · Fri, Nov 13
- High3:35 AM7.4 ft 2.24 m
- Low7:53 AM5.7 ft 1.73 m
- High1:47 PM8.9 ft 2.73 m
- Low9:03 PM1.4 ft 0.44 m
NOAA prediction + 1.5 ft Quiver sea-level adjustment
Next 7 days
NOAA prediction + 1.5 ft Quiver sea-level adjustment
| Day | Tides (local time, height) |
|---|---|
| Fri, Nov 13 |
|
| Sat, Nov 14 |
|
| Sun, Nov 15 |
|
| Mon, Nov 16 |
|
| Tue, Nov 17 |
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| Wed, Nov 18 |
|
| Thu, Nov 19 |
|
Quiver adds this from water levels measured against NOAA’s California tables this season; NOAA’s own table reads 1.5 ft lower.
About this station
Mad River Slough, Arcata Bay is a NOAA subordinate station in California: its highs and lows are offsets from Humboldt Bay (North Spit). Heights are feet above mean lower low water (MLLW), plus Quiver's +1.5 ft sea-level adjustment.
Tide type: Mixed, mostly semidiurnal: two highs and two lows a day, one pair noticeably bigger than the other.
This week the biggest swing between high and low is 7.5 ft; the average swing is 3.9 ft.
Closest Quiver spot: Samoa Dunes Surf Area, 13 km away.
Station facts
- Station ID
- 9418865
- Source
- NOAA CO-OPS
- Type
- Subordinate station
- Reference station
- Humboldt Bay (North Spit)
- Coordinates
- 40.8650, -124.1480
- Datum
- MLLW + 1.5 ft Quiver sea-level adjustment
- Tide type
- Mixed, mostly semidiurnal
- Time zone
- America/Los_Angeles
