National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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MIDDLE FORK FEATHER RIVER - PORTOLA (MFTC1)
Latitude: 39.82º NLongitude: 120.44º WElevation: 4850 Feet
Location: Plumas County in CaliforniaRiver Group: Lower Sacramento
Issuance Time: Feb 20 2019 at 1:54 PM PSTNext Issuance: Feb 21 2019 at 9:00 AM PST
Monitor Stage: 7.5 FeetFlood Stage: 9.0 Feet
Observed Data Credit
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Raw streamflow data is provided by the California Department of Water Resources.
View CA DWR 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
12,700
12.61
Feb 10, 2017
2016 1,649 6.23 Mar 15, 2016
2015
622
4.56
Feb 12, 2015
2014
394
3.97
Feb 12, 2014
2013
942
5.19
Dec 5, 2012
 Historical High Stage/Flow Events (Period of Record - Oct 1968 to Present)
2017
12,700
12.61
Feb 10, 2017
1969
7,640
10.62
Jan 21, 1969
1971
6,580
10.07
Mar 27, 1971
1980
5,690
9.56
Jan 14, 1980
1970 4,970 9.11 Jan 25, 1953
2011 4,851 9.03 Mar 17, 2011
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ071)
Tonight: Cloudy with scattered snow showers. Lows 9 to 19. Northwest winds 10 to 15 mph.

Thursday: Mostly cloudy with isolated snow showers. Highs 27 to 32. North winds 10 to 15 mph.

Thursday Night: Mostly cloudy with a slight chance of snow showers in the evening, then partly cloudy after midnight. Lows 2 to 12. Northeast winds 10 to 15 mph.

Friday: Partly cloudy. Highs 28 to 38. Northeast winds around 10 mph in the morning becoming light.

Friday Night: Partly cloudy. Lows 10 to 20. Light winds becoming southwest around 10 mph after midnight.

Saturday: Mostly cloudy with a chance of snow showers. Highs 32 to 42.

Saturday Night: Mostly cloudy with a chance of snow. Lows 18 to 28.

Sunday through Monday Night: Snow likely. Highs 34 to 44. Lows 20 to 30.

Tuesday through Wednesday: Mostly cloudy with a chance of snow and rain. Highs 38 to 48. Lows 23 to 33.
Impacts - E19 Information
7.5 FeetMonitor Stage. Some areas of very minor out of bank flow between Beckwourth and Clio.
8.5 FeetSome minor lowland flooding between Beckwourth and Clio. Potential for road impacts near Clio with large contribution from tributary creeks.
9.0 FeetFlood stage. Minor flooding of lowlands, rural roads, agricultural areas, and some low structures between Beckwourth and Clio. In Portola, water nearing lowest lying businesses along Highway 70 on west edge of Portola. The south end of West Street in Portola floods. Portions of Highway 89 near Clio may begin to flood. Potential for greater impacts in the lower portion of the reach with large contribution from tributary creeks. Similar level to March 17 2011.
9.5 FeetMinor flooding of lowlands, roads, and low-lying structures between Beckwourth to Clio. In Portola the lowest lying buildings and businesses on highway 70 may begin to experience some minor flooding. Water along West Street nearing lowest homes along river. Highway 89 near Clio likely flooded. Potential for greater impacts in the lower portion of the reach with large contribution from tributary creeks. Similar level to 3/23/2018.
10.0 FeetFlooding of lowlands, structures, and roads from Beckwourth to Clio. Several low lying structures along river in Portola flood. Evacuation of homes on south end of West Street may be necessary. Highway 89 near Clio likely flooded. Impacts below Portola influenced by magnitude of tributary flows, especially Sulphur Creek. Similar level to 1/9/2017.
10.5 FeetModerate flooding of lowlands, roads, homes, businesses and structures along river from Beckwourth to Clio. Lowest homes on West Street begin to flood. Impacts below Portola influenced by magnitude of tributary flows, especially Sulphur Creek. Similar level to February 22nd, 2017, and slightly exceeding flooding of 1/9/2017.
11.0 FeetModerate flooding of businesses, homes, structures, and roads, including Highway 89 near Clio, portions of Highway 70, and low lying homes from Beckwourth to Clio. Impacts below Portola influenced by magnitude of tributary flows, especially Sulphur Creek.
12.0 FeetMajor disruptions to transportation with significant impacts to homes and businesses between Beckworth and Clio. Approaching levels of February 9, 2017. Potential for rapid rises and major impacts from tributary streams. Impacts below Portola influenced by magnitude of tributary flows, especially Sulphur Creek. Tributary impacts may significantly proceed main-stem peak flows.
13.0 FeetMajor to near record flooding. Major damages to transportation, homes and businesses. Similar to January 1997, and in excess of February 9, 2017. Potential for rapid rises and major impacts from tributary streams. Tributary impacts may significantly proceed main-stem peak flows.
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 Reno 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.