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| SUSAN RIVER - SUSANVILLE (SUSC1) | ||||||||||||||||||
| Latitude: 40.41º N | Longitude: 120.66º W | Elevation: 4190 Feet | ||||||||||||||||
| Location: Lassen County in CA | ||||||||||||||||||
| River Group: Eastern Sierra | ||||||||||||||||||
| Issuance Time: | Jan 10 2026 at 11:14 AM PST |
| Please Note: | Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty. Flow data on this product are unregulated / full natural flow. |
| Location Photographs | ||
| ESRI™ Locator Map |
| Official 7 Day National Weather Service Forecast (CAZ071) |
| Today: Mostly cloudy in the morning then becoming partly cloudy. Highs 40 to 50. Light winds. Tonight: Partly cloudy in the evening then becoming clear. Lows 17 to 27. Light winds. Monday: Sunny. Highs 44 to 54. Light winds. Monday Night: Clear. Lows 17 to 27. Light winds. Tuesday: Sunny. Highs 46 to 56. Light winds. Tuesday Night: Clear. Lows 20 to 30. Wednesday through Saturday: Clear. Highs 48 to 58. Lows 22 to 32. |
| Flood Impacts | |
| 18.5 Feet | Record flooding from Susanville to Honey Lake...including Susanville...Johnstonville...Leavitt Lake...Standish and Litchfield areas. Extensive damage to homes...businesses...schools...roads... bridges and water systems throughout Honey Lake Valley. Transportation in and out of valley cut off as US Highway 395 and Highway 36 are flooded or washed out. Extensive power...phone...and rural water system impacts. Like record flood of January 24 1970. |
| 18.0 Feet | Near record flooding from Susanville to Honey Lake...including Susanville...Johnstonville...Leavitt Lake...Standish and Litchfield areas. Extensive damage to homes...businesses...schools...roads...bridges and water systems in flood plain throughout Honey Lake Valley. Transportation in and out of Honey Lake Valley is cut off as US Highway 395 and Highway 36 are flooded or washed out. Extensive power...phone and rural water system impacts. Only exceeded by flood of January 24 1970. |
| 17.5 Feet | Near record flooding from Susanville to Honey Lake...including Susanville...Johnstonville...Leavitt Lake...Standish and Litchfield areas. Severe damage to homes...businesses...schools... roadways...bridges and water systems in flood plain throughout Honey Lake Valley. Transportation in valley difficult as US Highway 395 and Highway 36 are flooded or washed out. Extensive power...phone and rural water system impacts. Slightly higher than floods of February 17 1986 and January 2 1997. |
| 17.0 Feet | Major flood damage from Susanville to Honey Lake...including Susanville...Johnstonville...Leavitt Lake...Standish and Litchfield areas. Homes...businesses...schools... roadways...bridges and water systems flooded throughout Honey Lake Valley. Transportation very difficult as US Highway 395 and Highway 36 are flooded or washed out. Extensive power...phone and rural water system impacts. Slightly less severe than floods of December 22 1964...February 17 1986 and January 2 1997. |
| 16.5 Feet | Major flood damage from Susanville to Honey Lake...including Susanville...Johnstonville...Leavitt Lake...Standish and Litchfield areas. Homes...businesses...schools...roadways... bridges and water systems flooded throughout Honey Lake Valley. Extensive transportation...power... phone and rural water system impacts. US Highway 395 and Highway 36 flooded. Similar to November 23 1981 flood. |
| 16.0 Feet | Major flooding from Susanville to Honey Lake...including Susanville...Johnstonville...Leavitt Lake...Standish and Litchfield areas. Homes...businesses...schools...roadways and bridges flooded 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 November 23 1981 flood. |
| 15.5 Feet | Major flood damage from Susanville to Honey Lake...including Susanville...Johnstonville...Leavitt Lake...Standish and Litchfield areas. 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 January 31 1963 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 January 31 1963 and January 13 1980 floods. |
| 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. |
| 14.0 Feet | Major flooding in Susanville...Johnstonville...Leavitt Lake...Standish...Litchfield. Susanville floods from Lassen Street downstream along Riverside Drive and from Main St...Highway 36...on north to railroad tracks on south. Top of K-rail flood wall on Carroll Street. Homes...businesses...schools...roads and bridges in the Honey Lake Valley flooded. Serious transportation impacts. Impacts to power...phone and rural water systems begin. Similar to December 31 2005 and February 24 1958 floods. |
| 13.5 Feet | Moderate flooding in Susanville...Johnstonville...Leavitt Lake...Standish and Litchfield.Susanville floods from Lassen Street downstream along Riverside Drive and from Cornell/River Street on north to Hood Street/Sunkist Drive on south. River up to bottom of Lassen Street bridge. Several homes along river have minor to moderate flooding. Many roads and bridges in Honey Lake Valley flood...moderate transportation impacts. Like December 2 2012...March 30 1974 and January 21 1969 floods. |
| 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 March 13 1983. |
| 12.5 Feet | Minor to moderate flooding 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. |
| 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. |
| 11.5 Feet | Localized minor to moderate lowland flooding below Susanville in the Johnstonville...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. |
| 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. |