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TUOLUMNE RIVER - MODESTO (MDSC1)
Latitude: 37.63º NLongitude: 120.99º WElevation: 90 Feet
Location: Stanislaus County in CaliforniaRiver Group: San Joaquin
Monitor Stage: 50.5 FeetFlood Stage: 55.0 Feet

Observed Data Credit
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Raw streamflow data is provided by the US Geological Survey (USGS).
View USGS Data for this station location.

Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2016*
2,830
43.88
Mar 15, 2016
2015*
1,160
40.81
Apr 6, 2015
2014*
1,240
40.98
Apr 18, 2014
2013*
1,860
42.19
Dec 25, 2012
2012*
1,980
42.41
May 13, 2012
 Historical High Stage/Flow Events (Period of Record - February 1895 to Present)**
1951*
57,000
69.19
Dec 9, 1950
1997*
55,800
71.21***
Jan 4, 1997
1956*
37,600
66.43
Dec 25, 1955
1969*
32,600
65.42
Jan 27, 1969
 * Discharge affected to unknown degree by regulation or diversion
 ** Most recent continuous record back to 1943 with segmented periods back to Feb 1895
 *** Backwater effect caused by debris on railroad trestle 1500 ft downstream of gage
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ019)
Today: Mostly cloudy. A slight chance of rain showers in the morning. Areas of fog in the morning. Highs around 60. Light winds.

Tonight: Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows 44 to 50. Light winds.

Wednesday: Mostly cloudy in the morning then becoming partly cloudy. Patchy fog in the morning. Highs around 61. Light winds.

Wednesday Night: Mostly cloudy. Lows around 47. Light winds.

Thursday: Mostly cloudy. A slight chance of rain in the morning, then a chance of rain in the afternoon. Highs 57 to 62. South winds up to 10 mph.

Thursday Night: Mostly cloudy with a chance of rain. Lows 42 to 48.

Friday: Mostly cloudy with a chance of rain showers. Highs 49 to 55.

Friday Night: Mostly cloudy with a chance of rain showers. Colder. Lows 32 to 40.

Saturday: Mostly sunny. Highs 49 to 54.

Saturday Night: Partly cloudy. Lows 33 to 41.

Sunday and Sunday Night: Mostly cloudy with a chance of rain. Highs 50 to 56. Lows 35 to 45.

Monday: Rain likely. Highs 51 to 56.
Impacts - E19 Information
55.0 FeetThis is channel capacity through downtown Modesto.
67.0 FeetExtensive flooding occurs. Flows in excess of 40,000 cfs could cause extensive damage to residential, industrial, and commercial development in Modesto downstream of gage.
Product Disclaimer

This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS Sacramento Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only.