Flood Inundation Mapping - The National Weather Service Flood Inundation Mapping (FIM) services are now available for much of CA as well as portions of western NV and southern OR. See the FIM Fact Sheet for more information.
Flood Threshold Changes for Mokelumne River at Benson's Ferry - On August 14, the moderate and major flood stages for the Mokelumne River at Benson's Ferry changeed to 19.0 ft and 20.0 ft respectively. More information can be found here.
CNRFC Daily Briefing - View a graphical summary of current & forecast weather & hydrologic conditions. Updated by 10 AM PT.
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River Guidance Forecast Status (Approximately 5 Days)
Gage Information Place cursor over gage on map for readout. |
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| 97 Gauges Forecast Normal Conditions (95.10% of Gages) | 5 Gauges Forecast Action/Monitor (4.90% of Gages) | 0 Gauges Forecast Minor Flood (0.00% of Gages) | 0 Gauges Forecast Moderate Flood (0.00% of Gages) | 0 Gauges Forecast Major Flood (0.00% of Gages) | |||||||||||||||||||||||||
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Last Map Update: Monday December 29th 2025 at 8:42 AM PST (1 Minute Old) (Data is updated every 5 minutes) |
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| River Guidance Points Forecast Above Specified Stage Definitions (Select NWS ID for Specified Graphical RVF) | |||||||||||
| NWS ID | River / Creek | Gage / Station | Action/ Monitor | Minor Flood | Moderate Flood | Major Flood | Latest Observed Stage / Flow | Latest Observed Date / Time | Max Forecast Stage / Flow | ||
| CLAC1 | SACRAMENTO | COLUSA WEIR | 60.9 | 70.1 | 72.9 | 73.9 | 63.09 / 2,068 | 12/29 08:00 AM PST | 63.15 / 2,229 | ||
| TISC1 | SACRAMENTO | TISDALE WEIR | 44.1 | 51.6 | 54.6 | 55.6 | 46.69 / 12,131 | 12/29 08:15 AM PST | 46.69 / 12,115 | ||
| FMWC1 | SACRAMENTO | FREMONT WEIR | 32.0 | 39.5 | 43.0 | 44.0 | 33.64 / 86,938 | 12/29 08:15 AM PST | 33.63 / 86,559 | ||
| RVBC1 | SACRAMENTO | RIO VISTA | 7.4 | 11.9 | 20.4 | 21.4 | 5.66 / NA | 12/29 08:00 AM PST | 7.70 / NA | ||
| LSBC1 | YOLO BYPASS | LISBON | 13.0 | 19.0 | 26.0 | 31.1 | 11.40 / NA | 12/29 08:15 AM PST | 13.47 / NA | ||
** NOTE ** Stage is presented in "Feet" while Flow (Storage at CLKC1) is presented in "cfs" ("Acre-Feet"). | |||||||||||
| River Guidance Forecast Group Issuance and Next Update Times (Select Forecast Group for Specified Text RVF) | |||||
| FG ID | Forecast Bulletin Group | Issuance Time | Next Update Time | ||
| SE | North Coast | [ Alternate Link ] |  | Dec 29 2025 at 7:41 AM PST | Dec 29 2025 at 3:00 PM PST |
| RN | Russian Napa | [ Alternate Link ] | | Dec 29 2025 at 7:41 AM PST | Dec 29 2025 at 3:00 PM PST |
| USA | Upper Sacramento | [ Alternate Link ] | | Dec 29 2025 at 7:26 AM PST | Dec 29 2025 at 3:00 PM PST |
| LSC | Lower Sacramento | [ Alternate Link ] | | Dec 29 2025 at 7:35 AM PST | Dec 29 2025 at 3:00 PM PST |
| SJ | San Joaquin | [ Alternate Link ] | | Dec 29 2025 at 7:47 AM PST | Dec 29 2025 at 3:00 PM PST |
| CC | Central Coast | [ Alternate Link ] | | Dec 29 2025 at 7:51 AM PST | Dec 29 2025 at 3:00 PM PST |
| SCA | Southern California | [ Alternate Link ] | | Dec 29 2025 at 7:51 AM PST | Dec 29 2025 at 3:00 PM PST |
| ES | Eastern Sierra | [ Alternate Link ] | | Dec 29 2025 at 7:54 AM PST | Dec 29 2025 at 3:00 PM PST |
| HBT | Humboldt | [ Alternate Link ] | | Dec 29 2025 at 7:55 AM PST | Dec 29 2025 at 3:00 PM PST |
| SAC | Sacramento Delta (Tides) | [ Alternate Link ] | Dec 29 2025 at 6:09 AM PST | Dec 30 2025 at 9:00 AM PST | |
| ** NOTE 1 ** The Klamath and North Coast Forecast Group river guidance points are included in the North Coast Bulletin Group. | |||||
| ** NOTE 2 ** The Feather Yuba, American, and Cache Putah Forecast Group river guidance points are included in the Lower Sacramento River Bulletin Group. | |||||
| ** NOTE 3 ** The Delta Region, Upper and Lower San Joaquin, and Tulare Forecast Group river guidance points are combined in the San Joaquin River Bulletin Group. | |||||
| ** NOTE 4 ** The Salinas Pajaro and South Bay Forecast Group river guidance points are included in the Central Coast Bulletin Group. | |||||
| ** NOTE 5 ** The Southern California and San Diego/Inland Forecast Group river guidance points are included in the Southern California Bulletin Group. | |||||
| CNRFC Daily Briefing | ||
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| Observed Precipitation | Graphical Discussion | Forecast Precipitation |
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| ** Note ** Click on Indvidual Images to Expand. | ||
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