Western Flows

South Fork Trinity River

Below Hyampom USGS: 11528700 Provisional Data Last Updated: May 14, 06:10 PM PT

Current Flow

456.0 cfs
Steady
No Water Temp Probe

Expected Weather

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

Location

Basin: Lost River County: Trinity Elevation: 1,212 ft Drainage Area: 764.0 mi²
Flow is below average for this time of year (below the 25th percentile, based on 60 years of USGS record).

System Insights

  • Below average. Lower than 75% of historical years for this date.

  • Flow has fallen from within the 25th–75th percentile range to below the 25th percentile over the past 7 days (559.0 → 456.0 cfs).

  • Real-time flow is running well above current model projections. On-the-ground conditions are outpacing the forecast.

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

Today's Weather

Forecast Details

Morning

At 6 AM: 44°F and Clear, wind SE at 4 mph. By 10 AM: 62°F and Clear, wind NE at 1 mph.

Afternoon/Evening

At 2 PM: 72°F and Clear, wind N at 14 mph. By 6 PM: 66°F and Clear, wind N at 14 mph.

Overnight

Dropping from 56°F at 10 PM to 48°F by 4 AM. Conditions Clear with wind E at 4 mph.

3-Day Outlook

🌘 Waning Crescent

Today, May 14

🌤️

72° / 43°

Chance of Rain: 1%
🌅 5:57 AM 🌇 8:23 PM

Friday, May 15

☁️

67° / 47°

Chance of Rain: 0%
🌅 5:56 AM 🌇 8:24 PM

Saturday, May 16

☁️

66° / 44°

Chance of Rain: 2%
🌅 5:55 AM 🌇 8:25 PM

Flow Trend & 7-Day Forecast

Source: USGS
Current (CFS)
7-Day Forecast
Historical Median
Normal Range (p25–p75)

Flow ranged from 453.0 to 563.0 CFS over the past 7 days. Current flow is 456.0 CFS. The historical median for this date is 867.9 CFS.

7-Day Water Temperature (°F)

Source: USGS

Temperature Data Unavailable

The USGS does not maintain an active temperature probe at this gauge location.

Nearby Gauges