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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: Areas of frost in the morning. Mostly sunny. Highs 49 to 55. Light winds.

Tonight: Partly cloudy. Areas of frost after midnight. Lows 28 to 34. Light winds.

Wednesday: Areas of frost in the morning. Partly cloudy in the morning, then partly cloudy with a slight chance of rain showers in the afternoon. Highs 49 to 57. Light winds.

Wednesday Night: Mostly clear. A slight chance of rain showers in the evening. Lows 31 to 39. Northwest winds up to 10 mph.

Thursday: Mostly cloudy. A chance of rain showers in the morning, then a slight chance of rain showers in the afternoon. Highs 47 to 55. Southeast winds up to 10 mph shifting to the west around 10 mph in the afternoon.

Thursday Night: Partly cloudy with a chance of rain showers. Lows 28 to 36.

Friday: Partly cloudy. Highs 51 to 57.

Friday Night and Saturday: Mostly clear. Lows 29 to 37. Highs 55 to 61.

Saturday Night and Sunday: Partly cloudy with a slight chance of rain showers. Lows 35 to 41. Highs 53 to 61.

Sunday Night: Partly cloudy. Lows 33 to 41.

Monday: Partly cloudy with a slight chance of rain showers. Highs 54 to 62.
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.