Western Flows

Willamette River

At Portland, OR Stream Gauge USGS: 14211720 Provisional Data Last Updated: Oct 08, 10:55 AM PT

Current Flow

18,900 cfs
Rising

Water Temp

64.4 °F
Safe (< 65°F)

Expected Weather

Temp --°F
Wind -- mph
Rain Chance --%
Pressure -- hPa

Location

Flow is within the typical range for this time of year (25th–75th percentile, based on 54 years of USGS record).

System Insights

  • Flow has risen more than 10% in the past 4 hours. Conditions are changing rapidly at this location.

  • Flow is already rising rapidly with precipitation forecast in the next 48 hours (31% chance). Further rises are possible.

  • Flow has risen from within the 25th–75th percentile range to above the 75th percentile over the past 7 days (12,500 → 18,900 cfs).

Verify access, permits, and local conditions before entering any waterway.

Today's Weather

Forecast Details

Morning

At 6 AM: 53°F and Partly Cloudy, wind N at 3 mph. By 10 AM: 58°F and Partly Cloudy, wind N at 3 mph.

Afternoon/Evening

At 2 PM: 70°F and Clear, wind NW at 4 mph. By 6 PM: 70°F and Clear, wind N at 4 mph.

Overnight

Dropping from 58°F at 10 PM to 53°F by 4 AM. Conditions Overcast with wind NW at 4 mph.

3-Day Outlook

🌘 Waning Crescent

Today, Oct 08

☁️

75° / 53°

Chance of Rain: 0%
7:18 AM 6:37 PM

Friday, Oct 09

☁️

62° / 48°

Chance of Rain: 31%
7:19 AM 6:35 PM

Saturday, Oct 10

☁️

62° / 46°

Chance of Rain: 46%
7:20 AM 6:33 PM

7-Day Flow History

Source: USGS

The current cfs of 18,900 CFS is running above the historical median of 11,800 CFS for this date, indicating higher-than-average seasonal water levels.

Current (CFS)
Historical Median
Normal Range (p25–p75)

7-Day Water Temperature (°F)

Source: USGS
Current (°F)
Historical Median
68°F Threshold

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Glossary & Methodology

Cubic Feet per Second (CFS)

The standard measure for streamflow. One CFS is equal to one cubic foot of water flowing past a specific point in one second (about 7.48 gallons).

Acre-Foot (AF)

The volume of water needed to cover one acre of land to a depth of one foot. One acre-foot is exactly 325,851 gallons.

Snow Water Equivalent (SWE)

The amount of water contained within the snowpack. It can be thought of as the depth of water that would theoretically result if you melted the entire snowpack instantaneously.

Data Sources

Live metrics and historical medians are aggregated directly from the US Geological Survey (USGS), California Data Exchange Center (CDEC), and National Resources Conservation Service (NRCS). Daily flow statistics represent provisional records and are subject to agency revision.