NOAA - National Weather Service - California Nevada River Forecast Center

SUSAN RIVER - SUSANVILLE (SUSC1)

Latitude: 40.41º N	Longitude: 120.66º W	Elevation: 4190 Feet
Location: Lassen County in California		River Group: Eastern Sierra

Issuance Time:

May 21 2013 at 7:49 AM PDT

Next Issuance:

May 22 2013 at 9:00 AM PDT

Monitor Stage: 10.5 Feet

Flood Stage: 12.0 Feet

Historical Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2012*	636**	7.10	Apr 26, 2012
2011*	958**	8.22	Mar 16, 2011
2010*	392**	6.10	Apr 27, 2010
2009*	867**	7.92	Mar 02, 2009
2008*	293**	5.65	Mar 13, 2008
Historical High Stage/Flow Events (Period of Record - Jul 1951 to Present)***
1970*	5,850	18.47	Jan 24, 1970
1997*	5,150	17.31	Jan 02, 1997
1986*	5,120	17.26	Feb 17, 1986
1965*	5,100	17.23	Dec 22, 1964
1982*	4,560	16.30	Nov 23, 1981
* Discharge affected by regulation or diversion
** Estimated flow (Not Official)
*** Most recent continuous record back to Jul 1951 with segmented periods back to Jun 1900

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

Google™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ071)

Today: Partly cloudy. Highs 51 to 61. North winds 10 to 15 mph. Gusts up to 30 mph in the morning.

Tonight: Partly cloudy. Lows 23 to 33. North winds up to 10 mph.

Thursday: Partly cloudy in the morning then becoming mostly cloudy. Chance of showers. Snow level 5000 feet rising to 6000 feet. Highs 52 to 62. Light winds becoming west 10 to 15 mph with gusts up to 35 mph in the afternoon.

Thursday Night: Partly cloudy. Chance of showers in the evening. Snow level 6000 feet rising to 7000 feet. Lows 25 to 35. West winds 10 to 20 mph with gusts up to 35 mph decreasing to up to 10 mph after midnight.

Friday: Partly cloudy. Highs 60 to 70. Light winds becoming southwest 10 to 20 mph with gusts up to 30 mph in the afternoon.

Friday Night: Partly cloudy. Lows 29 to 39.

Saturday and Saturday Night: Partly cloudy. Highs 61 to 71. Lows 32 to 42.

Sunday and Sunday Night: Partly cloudy with a slight chance of showers. Highs 62 to 72. Lows 32 to 42.

Memorial Day: Partly cloudy. Highs 63 to 73.

Monday Night: Partly cloudy with a slight chance of showers. Lows 34 to 44.

Tuesday: Mostly cloudy with a slight chance of showers. Highs 62 to 72.

Impacts - E19 Information
10.5 Feet	Those along river should begin careful monitoring of river and keep informed of forecast updates. Localized minor lowland flooding below Susanville in Johntonville, Leavitt Lake, Standish, and Litchfield rural areas.
11.0 Feet	Local minor lowland flooding below Susanville in Johnstonville, Leavitt Lake, Standish, and Litchfield rural areas.
11.5 Feet	Localized minor to moderate lowland flooding below Susanville in the Johnstonville, Leavitt Lake, Standish, and Litchfield rural areas.
12.0 Feet	Flood Stage - Several homes on Carroll Street in Susanville begin to flood. Local flooding in Susanville from Lassen Street downstream along Riverside Drive, especially below Piute Creek which enters river near Alexander Drive. Moderate lowland flooding below Susanville in Johnstonville, Leavitt Lake, Standish, and Litchfield areas. Some rural roads affected by flooding.
12.5 Feet	Minor to moderate flooing in Susanville from Lassen Street downstream along Riverside Drive. Several homes along river affected, especially on Carroll Street. Moderate lowland flooding below Susanville in Johnstonville, Leavitt Lake, Standish, and Litchfield areas. Rural roads and bridges begin to flood in these areas.
13.0 Feet	Moderate flooding in Susanville from Lassen Street downstream along Riverside Drive. Some homes along river have moderate flood affects, especially on Carroll Street. Significant lowland flooding below Susanville in Johnstonville, Leavitt Lake, Standish, and Litchfield areas. Rural roads and bridges in these areas flood. Similar to flood of 03/13/1983.
13.5 Feet	Moderate to major flooding in Susanville, Johnstonville, Leavitt Lake, Standish, and Litchfield. Susanville flooded from Lassen Street downstream along Riverside Drive and from Cornell/River Street on north to Hood Street/Sunkist Drive on south. River up to botton of Lassen Street bridge. Many homes along river have minor to moderate flooding. Many roads and bridges in the Honey Lake Valley area flood, with moderate transportation impacts. Similar to 03/30/1974 and 01/21/1969 floods.
14.0 Feet	Major flooding in Susanville, Johnstonville, Leavitt Lake, Standish, and Litchfield. Susanville flooded from Lassen Street downstream along Riverside Drive and from Main St (Highway 36) on north to railroad tracks on south. Many homes, businesses, schools, roads, and bridges in the Honey Lake Valley area flooded. Serious transportation impacts. Impacts to power, phone, and rural water systems begin. Similar to 02/24/1958 flood.
14.5 Feet	Major flooding in Susanville, Johnstonville, Leavitt Lake, Standish, and Litchfield areas in Honey Lake Valley. Susanville flooded from Lassen Street downstream along Riverside Drive and from Main Street (Highway 36) on north to railroad tracks on south. Serious flood impacts to homes, businesses, schools, roads, and bridges throughout Honey Lake Valley. US Highway 395 flooded. Serious transportation impacts, moderate impacts to power, phone, and rural water systems. Similar to 12/23/1955 flood.
15.0 Feet	Major flooding in Susanville, Johnstonville, Leavitt Lake, Standish, and Litchfield areas. Major flooding in Susanville from Lassen Street downstream along Riverside Drive, and from Main Street (Highway 36) on north to railroad tracks on south. Serious flood impacts to homes, businesses, schools, roads, and bridges throughout Honey Lake Valley. US Highway 395 flooded. Serious transportation, power, phone, and rural water system impacts. Similar to 01/31/1963 and 01/13/1980 floods.
15.5 Feet	Major flood damage from Susanville to Honey Lake. Flooding of homes, businesses and schools in flood plain throughout Honey Lake Valley, including Susanville. Extensive damage to transportation systems as roads, bridges, and culverts are flooded or washed out. US Highway 395 is flooded. Major transportation, power, phone, and rural water system impacts. Similar to 01/31/1963 flood.
16.0 Feet	Extensive flood damage from Susanville to Honey Lake. Serious flood impacts to homes, businesses, schools, roadways, and bridges in flood plain throughout Honey Lake Valley. Transportation impacts may be serious as US Highway 395 and Highway 36 are flooded. Extensive power, phone, and rural water system impacts. Similar to 11/23/1981 flood.
16.5 Feet	Extensive flood damage from Susanville to Honey Lake with flooding of homes, businesses, schools, roadways, brides, and water systems in flood plain throughout Honey Lake Valley. Extensive transportation, power, phone, and rural water system impacts. US Highway 395 and Highway 36 flooded. Similar to 11/23/1981 flood.
17.0 Feet	Flood disaster from Susanville to Honey Lake. Extensive flooding of homes, businesses, schools, roadways, bridges, and water systems in flood plain throughout Honey Lake Valley. Transportation very difficult as US Highway 395 and Highway 36 flooded or washed out. Extensive power, phone, and rural water system impacts. Slightly less severe than floods of 12/22/1964, 02/17/1986, and 01/02/1997.
17.5 Feet	Near record flooding from Susanville to Honey Lake. Extensive damage to homes, businesses, schools, roadways, bridges, and water systems in flood plain throughout Honey Lake Valley. Transportation in valley very difficult as US Highway 395 and Highway 36 flooded or washed out. Extensive power, phone, and rural water system impacts. Similar to floods of 12/22/1964, 02/17/1986, and 01/02/1997.
18.0 Feet	Near record flooding from Susanville to Honey Lake. Extensive damage to homes, businesses, schools, roads, bridges, and water systems in flood plain throughout Honey Lake Valley, including Susanville area. Transportation in and out of Honey Lake Valley cut off as US Highway 395 and Highway 36 flooded or washed out. Extensive power, phone, and rural water system impacts. Only exceeded by flood of 01/24/1970.
18.5 Feet	Record flooding from Susanville to Honey Lake. Extensive damage to homes, businesses, schools, road, bridges, and water systems throughout Honey Lake Valley, including Susanville area. Transportation in and out of valley cut off, as US Highway 395 and Highway 36 is flooded or washed out. Extensive power, phone, and rural water system impacts. Exceeds record flood of 01/24/1970.

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.

Observed Data Credit
	Raw streamflow data is provided by the California Department of Water Resources. View CA DWR Data for this station location.