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Latitude: 40.41º N | Longitude: 120.66º W | Elevation: 4190 Feet | |||
Location: Lassen County in California | Bulletin Group: Eastern Sierra | River Group: Eastern Sierra |
Issuance Time: | Sep 21 2023 at 8:12 AM PDT | Next Issuance: | Sep 22 2023 at 9:00 AM PDT |
Monitor Stage: 10.5 Feet | Flood Stage: 12.0 Feet |
Observed Data Credit | |
![]() | Raw streamflow data is provided by the California Department of Water Resources. |
Historical Stage/Flow Data |
|||
Water Year
|
Peak Discharge (cfs)
|
Stage (feet)
|
Date
|
Most Recent 5 Years | |||
2022* |
1,520** |
10.30 |
Oct 25, 2021 |
2021* |
106** |
4.70 |
Feb 12, 2021 |
2020* |
194** |
5.34 |
Apr 1, 2020 |
2019* |
1,310** |
9.71 |
Feb 14, 2019 |
2018* |
1,570** |
10.00 |
Mar 22, 2018 |
Historical High Stage/Flow Events (Period of Record - Discontinuous Jul 1951 to Present)**** - Ranked by Flow | |||
1970* |
5,850 |
8.89*** |
Jan 24, 1970 |
1997* |
5,150** |
11.75*** |
Jan 02, 1997 |
1986* |
5,120 |
8.33*** |
Feb 17, 1986 |
1965* |
5,100 |
7.30*** |
Dec 22, 1964 |
1982* |
4,560 |
7.95*** |
Nov 23, 1981 |
* Discharge affected by regulation or diversion | |||
** Estimated flow (Not Official) | |||
*** USGS gage located 0.5 mile upstream at different datum. | |||
**** Most recent record back to Jul 1951 (missing 1995 to 2000) with segmented periods back to Jun 1900 |
Location Photographs | ||
ESRI™ Locator Map |
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. |
Official 7 Day National Weather Service Forecast (CAZ071) |
Today: Mostly sunny. Isolated showers in the afternoon. Highs 57 to 67. North winds 10 to 15 mph. Tonight: Clear. Lows 27 to 37. Northwest winds 10 to 15 mph with gusts up to 30 mph in the evening becoming light. Friday: Sunny. Highs 62 to 72. Light winds. Friday Night: Clear. Lows 33 to 43. Southwest winds 10 to 15 mph. Saturday: Sunny. Highs 66 to 76. Light winds becoming southwest 10 to 15 mph in the afternoon. Saturday Night: Clear in the evening then becoming partly cloudy. Lows 34 to 44. Sunday and Sunday Night: Mostly cloudy. Highs 65 to 75. Lows 37 to 47. Monday and Monday Night: Breezy. Mostly cloudy with a chance of showers. Highs 66 to 76. Lows 35 to 45. Tuesday and Tuesday Night: Partly cloudy with a chance of showers. Highs 59 to 69. Lows 30 to 40. Wednesday: Partly cloudy in the morning then becoming sunny. Highs 62 to 72. |
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. |