National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service
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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
Issuance Time: Jan 18 2018 at 8:08 AM PSTNext Issuance: Jan 18 2018 at 3:00 PM PST
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.

Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.
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. Patchy fog in the morning. A chance of rain in the afternoon. Highs around 59. South winds up to 10 mph.

Tonight: Rain in the evening, then a chance of rain after midnight. Lows around 44. West winds around 10 mph.

Friday: Mostly cloudy with a chance of rain showers. Highs 49 to 55. West winds up to 10 mph.

Friday Night: Mostly cloudy. A slight chance of rain showers in the evening. Colder. Lows 32 to 40. Northwest winds around 10 mph.

Saturday: Partly cloudy in the morning then clearing. Highs 48 to 56. Northwest winds around 10 mph.

Saturday Night: Mostly clear. Lows 33 to 39.

Sunday: Mostly cloudy with a slight chance of rain. Highs 50 to 56.

Sunday Night and Monday: Mostly cloudy with a chance of rain. Lows 40 to 46. Highs 53 to 58.

Monday Night: Mostly cloudy with a slight chance of rain showers. Lows 38 to 46.

Tuesday and Tuesday Night: Mostly cloudy. Highs around 56. Lows 38 to 46.

Wednesday: Mostly cloudy with a slight chance of rain. Highs around 57.
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.