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: Feb 15 2019 at 3:10 PM PSTNext Issuance: Feb 16 2019 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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Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2017*
16,200
58.97
Feb 22, 2017
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
 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: Partly cloudy with a chance of rain showers in the evening, then rain showers after midnight. Lows 38 to 44. West winds around 10 mph shifting to the south after midnight. Gusts up to 25 mph.

Saturday: Rain showers in the morning, then rain showers and a slight chance of thunderstorms in the afternoon. Highs 47 to 54. South winds 10 to 15 mph with gusts to around 25 mph.

Saturday Night: Mostly cloudy with a chance of rain showers. Lows around 38. West winds 10 to 15 mph with gusts to around 25 mph shifting to the south after midnight.

Sunday: Mostly cloudy with a chance of rain showers. Highs 45 to 53. South winds up to 10 mph shifting to the northwest around 10 mph in the afternoon.

Sunday Night: Mostly clear. A slight chance of rain showers in the evening. Lows 30 to 36. Northwest winds 10 to 15 mph.

Washingtons Birthday: Sunny. Highs 48 to 56.

Monday Night: Clear. Lows 29 to 35.

Tuesday and Tuesday Night: Mostly clear. Highs 48 to 56. Lows 29 to 36.

Wednesday: Partly cloudy with a slight chance of rain showers. Highs 49 to 56.

Wednesday Night: Mostly cloudy with a chance of rain showers. Lows 34 to 40.

Thursday: Partly cloudy with a slight chance of rain showers. Highs 47 to 55.

Thursday Night: Partly cloudy with a slight chance of rain showers. Lows 32 to 38.

Friday: Mostly sunny. Highs 50 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.