Rivermatics

USGS Streamgage 13092747

Rock Creek Ab Hwy 30/93 Xing at Twin Falls, ID

Rock Creek Ab Hwy 30/93 Xing at Twin Falls, ID is USGS streamgage 13092747 in Idaho, monitoring river discharge in hydrologic subbasin 17040212. It drains a watershed of about 259 square miles. Discharge records at this site go back to 1992. Typical flow runs near 106.3 cfs in July and 120.2 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, alongside daily high and low water-temperature forecasts.

View live conditions & forecast →

Gauge details

State
Idaho
Drainage area
259 sq mi
Subbasin (HUC-8)
17040212
Coordinates
42.5625, -114.49472
USGS site number
13092747
Records begin
1992-10-01 (34 years)
Rivermatics forecast
14-day flow outlook + water temperature

14-day flow forecast

Based on observations through for Rock Creek Ab Hwy 30/93 Xing at Twin Falls, ID. 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
110 116 124
107 116 128
106 116 131
105 116 132
104 116 133
104 117 135
104 117 137
103 117 137
102 116 136
101 116 135
100 115 135
100 116 137
99.5 116 136
98.5 115 136

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 34 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 41.6 49.1 72.4
February 38.2 47.2 119.4
March 36.3 52 196.5
April 51.6 120.2 273.3
May 67 145.7 332.5
June 74.5 112.6 198
July 76.8 106.3 131.8
August 94.7 130.3 160.3
September 117 151.7 187.7
October 111.3 139.7 212.5
November 67.9 80.1 98.1
December 50.3 58.7 77.6

All values in cubic feet per second (cfs).

Common questions

When does Rock Creek Ab Hwy 30/93 Xing at Twin Falls, ID normally run highest?
September, on the long-term record. The median daily flow that month is about 151.7 cfs, against 47.2 cfs in February, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Rock Creek Ab Hwy 30/93 Xing at Twin Falls, ID?
It depends on the month. In January, half of days historically fall near 49.1 cfs, with the middle 80% of days between 41.6 and 72.4 cfs. The month-by-month table on this page gives the full range.
How long has Rock Creek Ab Hwy 30/93 Xing at Twin Falls, ID been measured?
Discharge records at USGS site 13092747 begin in 1992, about 34 years, covering roughly 9,201 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Rock Creek Ab Hwy 30/93 Xing at Twin Falls, ID?
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. A companion model forecasts each day's water-temperature high and low. 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 Rock Creek Ab Hwy 30/93 Xing at Twin Falls, ID?
The gauge sits at 42.5625, -114.49472, in Idaho, in hydrologic subbasin 17040212, draining roughly 259 square miles.
Can I use Rock Creek Ab Hwy 30/93 Xing at Twin Falls, ID 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