Nivelmap
EN

Frio River at Concan water level

River gauge, Frio River, Texas, United States

Directions

Right now

Normal for mid-October

Water level

3.67ft Steady over the last 24 hours

Flow
63.6 cfs
Water temperature
69 °F
0 10 20 30 Highest onrecord 34.40 ft Minor floodstage 11.00 ft

History

History
3.53.84.0ftOct 16Oct 16Oct 16Oct 17Oct 173.53.84.0ftOct 16Oct 16Oct 17
Water level Normal range (10–90 %) Minor flood stage

What this means

The gauge at Frio River at Concan reads 3.67 ft, a normal level for mid-October.

The median for mid-October is 3.64 ft, based on 27 years of readings, so the river stage is 0.03 ft above typical. It is 7.33 ft below the flood stage of 11.00 ft.

It has barely moved over the past 24 hours. Over the past 30 days it has moved between 3.66 ft and 3.68 ft.

Fall is often low-water season on rivers, until steadier rain returns. The water temperature at the gauge is 69 °F.

Compared with 27 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
3.64 ft0.03 ft above the median for this date
Normal for this date
3.36 ft – 4.04 ft8 years in 10 fall in this range (27 years of records)
Highest on record
34.40 ftJuly 1, 1932

What the stage means on the water

A normal level is usually prime time for floating and wade fishing, as long as the weather holds upstream.

The National Weather Service puts flood stage for this gauge at 11.00 ft, still 7.33 ft away.

What happens at each level

25.00 ft
Disastrous life threatening flooding destroys anything in the flood plain from the headwaters to below Concan. Homes are flooded and a few washed downstream below Leakey to below Rio Frio. Up to and over 15 feet of turbulent flow is life threatening in camp grounds above Rio Frio to Concan.
23.00 ft
Disastrous life threatening flooding from the headwaters to below Concan destroys anything in the flood plain. Homes are flooded below Leakey to below Rio Frio. Flow is up to 15 feet deep through campgrounds above Rio Frio to Concan washing autos, recreational vehicles, gear and campers downstream.
21.00 ft
Life threatening flooding through campgrounds below Rio Frio to Concan washes recreational vehicles, autos, gear, and campers downstream. Lowest homes are flooded below Leakey to below Rio Frio. Much of Garner State Park is flooded.
19.00 ft
Disastrous life threatening flooding rises rapidly over ten feet deep over portions of the banks and campgrounds near Rio Frio to Concan. Sleeping campers, autos, RV trailers, and gear are washed downstream.
17.00 ft
Up to near ten feet of turbulent flow smashes through campgrounds below Rio Frio to Concan. recreational vehicles, autos, and gear can easily be swept downstream. Lowest homes below Leakey to below Rio Frio are threatened. Residents in flood prone areas should prepare to evacuate as emergency officials assess the threat.
15.00 ft
Major flooding increases very quickly to several feet deep over the Frio River banks of recreation camps near Rio Frio to near Concan. Sleeping campers, autos and recreational vehicles can be washed downstream. This is a life threatening level.
14.00 ft
Flow extends well into the flood plain below Rio Frio to Concan. Turbulent flow several feet deep in campgrounds is dangerous to campers and their autos, RVs, and camping gear. Numerous roads and low bridges are severely flooded and dangerous to auto traffic.
12.00 ft
Moderate lowland flooding reaches camping areas near Rio Frio to above concan during recreation months threatening campers, autos, RV trailers, canoes and gear. Low roads and bridges are flooded and dangerous to auto traffic.
11.00 ft
Minor lowland flooding extends into low areas of resorts and camps below Rio Frio to Concan. Low roads and bridges in the flood plain are flooded and dangerous to auto traffic.
9.00 ft
Flow reaches lowest areas of camps above Rio Frio to Concan with no significant damage.
3.67 ft
Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Chance of at least minor flooding in October to December: 9 %.

RankLevelDate
134.40 ftJuly 1, 1932
231.20 ftJuly 2, 2002
330.60 ftSeptember 16, 1936
429.40 ftJune 14, 1935
528.80 ftSeptember 18, 1923
625.50 ftAugust 22, 1998
724.40 ftJune 22, 1997
822.40 ftSeptember 16, 1991
921.59 ftOctober 28, 1996
1019.96 ftJuly 16, 2026

Weather at the gauge

No rain in the last 3 days.

16 Fri 76° 56° – Wind 26 mph
17 Sat 67° 48° – Wind 13 mph
18 Sun 70° 46° – Wind 9 mph
19 Mon 79° 54° – Wind 15 mph
20 Tue 79° 65° – Wind 14 mph
21 Wed 81° 65° 0.01 in Wind 14 mph
22 Thu 83° 60° – Wind 13 mph

Forecast: Open-Meteo

Sunrise 07:42 AM Sunset 07:07 PM Daylight 11 hr, 25 min First quarter 44%

Map

Other gauges on the Frio River

Gauge Level Compared with normal 24 hours Distance
Frio River at LeakeyRiver gauge, Frio River 4.26 ft No reference yet −0.01 ft 16 mi
Frio River below Dry Frio River near UvaldeRiver gauge, Frio River 0.95 ft Very low ±0 17 mi
Frio River near DerbyRiver gauge, Frio River −0.82 ft Very low ±0 62 mi
Frio River at TildenRiver gauge, Frio River 1.03 ft Very low −0.06 ft 99 mi

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Dry Frio River near Reagan WellsRiver gauge, Dry Frio River 2.02 ft Normal −0.01 ft 4.7 mi
Leona River at CR 429A near UvaldeRiver gauge, Leona River 4.24 ft Normal ±0 10 mi
Sabinal River near SabinalRiver gauge, Sabinal River 4.81 ft Normal ±0 13 mi
Sabinal River at UtopiaRiver gauge, Sabinal River 3.10 ft Very high +0.01 ft 14 mi
Nueces River at LagunaRiver gauge, Nueces River 1.95 ft Normal ±0 18 mi
Sabinal River at SabinalRiver gauge, Sabinal River 3.80 ft Very high +0.11 ft 18 mi
Sabinal River below Mill Creek near VanderpoolRiver gauge, Sabinal River 0.27 ft Low −0.01 ft 18 mi
Seco Creek at Miller Rh near UtopiaRiver gauge, Seco Creek 1.03 ft Normal −0.01 ft 19 mi

Questions and answers

What is flood stage for the Frio River at Concan?

The official flood stage is 11.00 ft. The level is currently 7.33 ft below it.

What is a normal level for the Frio River at Concan in mid-October?

The median for mid-October is 3.64 ft. In 8 years out of 10 the reading falls between 3.36 ft and 4.04 ft, based on 27 years of records.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Frio River at Concan today?

On Oct 17, 2026, 06:15 PM CDT, the water level was 3.67 ft. Steady over the last 24 hours.

Is Frio River at Concan rising or falling?

Steady over the last 24 hours.

Is the level of Frio River at Concan normal?

Normal for mid-October. Compared with 27 years of daily readings for this time of year.

What is the highest water level ever recorded at Frio River at Concan?

The highest level on record is 34.40 ft on July 1, 1932.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:08195000 (Agency page)
Coordinates
29.48856, -99.70478 (WGS84)
Vertical datum
NAVD88
Update interval
every 15 minutes
Licence
Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

ParameterLast valueTime (UTC)Quality
Water level 3.67 ft 2026-10-17 23:15 Provisional
Flow 63.6 cfs 2026-10-17 23:15 Provisional
Water temperature 69 °F 2026-10-17 23:15 Provisional

Download

Embed this gauge

Add a live card for this gauge to your website. It updates on its own and links back here.

How to cite

U.S. Geological Survey: Frio River at Concan (usgs:08195000). Accessed October 17, 2026 via Nivelmap, https://nivelmap.com/en/united-states/texas/frio-river-at-concan

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.