Portland Morrison Street Bridge Tides Today
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Portland Morrison Street Bridge runs a mean tidal range of about 2.0 ft. This month the highest water, 4.1 ft, comes on the afternoon of Nov 25, and the lowest, a -0.0 ft minus tide, on the morning of Nov 26.
| Low tide | 7:56 AM | 0.3 ft |
| High tide | 1:01 PM | 2.2 ft |
| Low tide | 7:43 PM | 1.0 ft |
Today on the water at Portland Morrison Street Bridge
Today at Portland Morrison Street Bridge: high tide at 1:01 PM (2.2 ft), low tide at 7:56 AM (0.3 ft) and 7:43 PM (1.0 ft). The National Weather Service forecast for Tuesday is partly sunny with NNE winds 0 to 3 mph, 61°F. Sunrise is at 6:51 AM and sunset at 4:56 PM.
| Period | Forecast | Wind | Temp |
|---|---|---|---|
| Overnight | Cloudy | NE 3 mph | 48°F |
| Tuesday | Partly Sunny | NNE 0 to 3 mph | 61°F |
Forecast: National Weather Service point forecast for this location.
Where Portland Morrison Street Bridge is
Portland Morrison Street Bridge sits at 45.5100° N, 122.6730° W on the Columbia River, at Portland, OR, in Multnomah County. The station here is a historical NOAA reference station: a gauge measured the tide at this spot from 1940 until 2009, and NOAA still publishes harmonic predictions from that record. There is no live reading here today. The closest gauge measuring live water level is Vancouver (NOAA 9440083), 8.4 mi away, and high and low water here run on average about 53 min earlier than there. The nearest weather station is Portland, Portland International Airport, an airport reporting wind, visibility and sky cover, but no water temperature, 6.7 mi away.
The tide at Portland Morrison Street Bridge
Portland Morrison Street Bridge has a semidiurnal tide: two highs and two lows a day of about the same size, roughly 12 hours 25 minutes apart. This month's predictions average 1.9 high tides a day here. The mean range from lower low to higher high is 3.6 ft, and 2.9 ft between the average high and the average low, a moderate tide. On an average day the higher high tops the lower high by 0.5 ft and the lower low sits 0.2 ft below the other low. For the water around it: The ocean tide runs far up the Columbia, mixed semidiurnal at about 8 ft near the mouth and shrinking to 2 ft or less at Vancouver, where spring runoff moves the river as much as the moon does.
About this station
- High tide reaches Portland Morrison Street Bridge about 1.1 hours after the moon passes overhead. That lag is local, which is why high water does not line up with the moon.
Datum and source
Heights on this page are feet above mean lower low water (MLLW), the zero NOAA's nautical charts use for soundings. A predicted 0.0 ft low is the average of the lower low each day; a minus tide is water below chart datum, and a 2 ft high means 2 ft more water than the chart shows. NOAA fixes MLLW at Portland Morrison Street Bridge from the 1983-2001 National Tidal Datum Epoch; mean higher high water is 3.6 ft above it and mean sea level 1.5 ft. The land survey datum NAVD88, the zero on topographic maps and flood maps, is 7.0 ft below MLLW here, so a water level on this page converts to NAVD88 by adding that amount. These datums are controlled from NOAA's Astoria, OR gauge. Source: NOAA CO-OPS station 9439221, established 1940, gauge removed 2009. The tide times and heights are NOAA's official harmonic predictions for this station; TidalMap republishes them daily and does not alter them.
Tide stations near Portland Morrison Street Bridge
- Rocky Point: 16.0 mi, tides about 43 min later
- Multnomah Channel: 22.1 mi, tides about 8 min earlier
- Saint Helens: 25.2 mi, tides about 27 min earlier
- Tillamook, Hoquarten Slough: 56.9 mi, tides about 227 min earlier
- Wauna: 57.1 mi, tides about 192 min earlier
TidalMapMonthly tide calendar
🌊 Biggest flood tides at Portland Morrison Street Bridge this month: Nov 9, Nov 10, Nov 11, Nov 22, Nov 23, Nov 24, Nov 25, Nov 26, Nov 27. These spring highs push water up into the grass and over the oyster rock; prime for poling into flooded marsh for tailing reds.
🔻 Negative (minus) low tides at Portland Morrison Street Bridge this month: Nov 26. These drain the flats and expose the oyster rock, prime for sight-fishing and clamming.
Best fishing times (solunar)
Major and minor solunar windows for Portland Morrison Street Bridge, peak feeding activity is around the moon overhead/underfoot (majors) and moonrise/moonset (minors). Score is the day's activity coefficient (0–100).
| Day | Major windows | Minor windows | Score |
|---|---|---|---|
| Today 🌗 | 6:43–8:43 AM 7:08–9:08 PM | 11:40–1:40 AM 1:30–3:30 PM | 49 |
| Wed Nov 4 🌗 | 7:31–9:31 AM 7:56–9:56 PM | 12:57–2:57 AM 1:49–3:49 PM | 62 |
| Thu Nov 5 🌘 | 8:16–10:16 AM 8:41–10:41 PM | 2:11–4:11 AM 2:08–4:08 PM | 74 |
| Fri Nov 6 🌘 | 9:01–11:01 AM 9:26–11:26 PM | 3:24–5:24 AM 2:26–4:26 PM | 84 |
| Sat Nov 7 🌘 | 9:46–11:46 AM 10:11–12:11 AM | 4:36–6:36 AM 2:47–4:47 PM | 92 |
| Sun Nov 8 🌘 | 10:33–12:33 PM 10:58–12:58 AM | 5:46–7:46 AM 3:10–5:10 PM | 97 |
| Mon Nov 9 🌑 | 11:21–1:21 PM 11:46–1:46 AM | 6:56–8:56 AM 3:39–5:39 PM | 99 |
Predictions & observations: NOAA CO-OPS station 9439221. Solunar windows computed from the moon's position for this location. Times shown in the station's local time. Not for navigation.
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