Corte Madera Creek at Ross, CA
River level and flood forecast · Marin County
The river is 12.8 ft below flood stage (17 ft).
Flow: 0 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 4 PM. Forecasts change as rain falls and as upstream water arrives.
Get flood alerts for this river
An email when the National Weather Service forecasts Corte Madera Creek at Ross to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 23 ft |
| Moderate flood stage | 20 ft |
| Flood stage | 17 ft |
| Action stage | 15 ft |
| Record crest (December 31, 2005) | 22.59 ft |
What floods at each level
From the National Weather Service, highest first.
- 23 ftMajor Flood Stage. (Stage of 25.5 for co-located County ALERT stream gage.) Major flood inundation in town; travel along local roadways likely impossible and very dangerous. Major damage to local businesses and homes. Water is above guard rail on Lagunitas Road bridge.
- 20 ftModerate Flood Stage. (Stage of 22.5 for co-located County ALERT stream gage.) Lagunitas Road bridge is overtopped, and 1 to several feet of flood waters inundate local businesses, residences, and roadways.
- 17 ftMinor Flood Stage. (Stage of 19.5 feet for co-located County ALERT stream gage.) Backwatering begins at Lagunitas Road bridge, with minor flooding near Town Hall and Fire Station. NWS will issue a Flash Flood Warning if not yet already issued.
- 15 ftAction Stage. (Stage of 17.5 for co-located County ALERT stream gage.) Water level is 2 feet below Lagunitas Road bridge soffit, and less than 2 feet below local storm drain inlets on adjacent roads and parking lots. NWS will issue a Flash Flood Watch if not yet already issued.
Highest crests on record
- 22.59 ft — December 31, 2005
- 19.81 ft — January 4, 1982
- 18.07 ft — February 17, 1986
- 17.97 ft — December 20, 1969
- 17.5 ft — February 3, 1998
Recent crests: 22.59 ft (December 31, 2005) · 17.5 ft (February 3, 1998) · 17.04 ft (January 20, 1993) · 18.07 ft (February 17, 1986) · 16.89 ft (March 13, 1983)
Up and down the river, and nearby
- Redwood Creek (Marin County) above Highway 1 Bridge at Muir Beach, CA
- Novato Creek at Novato (USGS), CA
- Lagunitas Creek at Samuel P. Taylor State Park, CA
- Olema Creek at Vedanta Bridge, CA
- Lagunitas Creek near Pt. Reyes Station, CA
- Walker Creek (Marin) near Marshall, CA
- Nathanson Creek at Sonoma, CA
- Sonoma Creek at Agua Caliente, CA
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (CMDC1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.