Rivermatics

USGS Streamgage 11453000

Yolo Bypass near Woodland, CA

Yolo Bypass near Woodland, CA is USGS streamgage 11453000 in California, monitoring river discharge in hydrologic subbasin 18020163. Discharge records at this site go back to 1939. Typical flow runs near 15.7 cfs in July and 375.6 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.

View live conditions & forecast →

Gauge details

State
California
Gauge elevation
-2 ft
Subbasin (HUC-8)
18020163
Coordinates
38.67766, -121.64409
USGS site number
11453000
Records begin
1939-10-01 (87 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Yolo Bypass near Woodland, CA. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.

Forecast daily mean discharge in cubic feet per second, by date
Date Low p10 Expected p50 High p90 Range
44 46.3 50.4
43.2 47.2 56.5
41.8 47.2 59.6
40.1 46.4 58.3
39.3 46.4 59.8
39.1 47.2 64.2
38.3 47.8 69
37 46.7 65.4
35.6 45.2 59.7
35.3 45 59.3
37.4 48.1 70
37.8 49 70.8
35.7 47.1 65.4
34.5 45.7 62

All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 81 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January 13.1 1,287.3 53,996.8
February 25.2 2,222.8 61,213.8
March 32.3 1,660.4 35,538.7
April 8.5 375.6 16,523.7
May 3.9 56.5 2,347.7
June 1.8 34.8 754.9
July 0 15.7 57.9
August 0 19.8 71.7
September 3.1 38.2 143.4
October 2.2 13.3 48.5
November 2.9 13.3 1,045.6
December 6.2 144.4 16,514.2

All values in cubic feet per second (cfs).

Common questions

When does Yolo Bypass near Woodland, CA normally run highest?
February, on the long-term record. The median daily flow that month is about 2,222.8 cfs, against 13.3 cfs in October, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Yolo Bypass near Woodland, CA?
It depends on the month. In January, half of days historically fall near 1,287.3 cfs, with the middle 80% of days between 13.1 and 53,996.8 cfs. The month-by-month table on this page gives the full range.
How long has Yolo Bypass near Woodland, CA been measured?
Discharge records at USGS site 11453000 begin in 1939, about 87 years, covering roughly 5,049 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Yolo Bypass near Woodland, CA?
Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
Where is Yolo Bypass near Woodland, CA?
The gauge sits at 38.67766, -121.64409, in California, in hydrologic subbasin 18020163, at an elevation of about -2 feet.
Can I use Yolo Bypass near Woodland, CA data for flood or safety decisions?
No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.

Other gauges in this subbasin