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: Dec 15 2017 at 1:00 PM PSTNext Issuance: Dec 16 2017 at 9:00 AM 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)
Tonight: Mostly cloudy in the evening then becoming partly cloudy. Lows 35 to 45. Northwest winds up to 10 mph. Gusts up to 30 mph after midnight.

Saturday: Sunny, windy. Highs 55 to 62. Northwest winds 15 to 30 mph with gusts to around 40 mph.

Saturday Night: Clear, breezy. Lows 32 to 42. Northwest winds 10 to 25 mph with gusts to around 35 mph.

Sunday: Sunny. Highs 56 to 62. Northwest winds around 10 mph with gusts to around 20 mph.

Sunday Night: Clear. Lows 32 to 42. Light winds.

Monday: Mostly sunny. Highs around 61.

Monday Night: Mostly clear. Lows 34 to 44.

Tuesday: Mostly sunny. Highs around 62.

Tuesday Night: Partly cloudy. Lows 37 to 46.

Wednesday: Mostly cloudy with a slight chance of rain. Highs 56 to 61.

Wednesday Night through Friday: Mostly clear. Lows 31 to 41. Highs around 59.
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.