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| Latitude: 35.63º N | Longitude: 120.69º W | Elevation: 700 Feet | |
| Location: San Luis Obispo County in California | River Group: Central Coast | ||
| Monitor Stage: 23.0 Feet | Flood Stage: 29.0 Feet |
| Observed Data Credit | |
 | Raw streamflow data is provided by the US Geological Survey (USGS). |
Historical Stage/Flow Data |
|||
|
Water Year
|
Peak Discharge (cfs)
|
Stage (feet)
|
Date
|
| Most Recent 5 Years | |||
2025 |
4,240 |
20.91 |
Feb 13, 2025 |
2024 |
6,900 |
22.95 |
Feb 19, 2024 |
2023 |
25,600 |
32.24 |
Jan 9, 2023 |
2022 |
3,130 |
19.62 |
Dec 23, 2021 |
2021 |
1,890 |
18.30 |
Jan 29, 2021 |
| Historical High Stage/Flow Events (Period of Record - Oct 1939-Sep 1965 and Oct 1969 to present) - Ranked by Flow | |||
1995 |
28,400 |
22.99 |
Mar 10, 1995 |
1969* |
28,000 |
23.80 |
Jan 25, 1969
|
2023 |
25,600 |
32.24 |
Jan 9, 2023 |
1980 |
18,500 |
15.99 |
Feb 16, 1980 |
| 2005 |
17,400 |
17.73 |
Dec 31, 2004 |
| 1983 |
16,400 |
15.90 |
Dec 22, 1982 |
| * Occurred outside period of record | |||
| Location Photographs | ||
| ESRI™ Locator Map |
| Official 7 Day National Weather Service Forecast (CAZ343) |
| Tonight: Mostly clear in the evening then mostly cloudy. Lows in the upper 30s to mid 40s. Sunday: Mostly cloudy. Highs in the lower to mid 60s. Sunday Night: Mostly cloudy. A 40 percent chance of rain after midnight. Lows in the mid to upper 40s. Monday: Rain in the morning, then a chance of rain in the afternoon. Highs in the mid 50s to around 60. Monday Night: Partly cloudy with a 20 percent chance of rain in the evening, becoming mostly clear after midnight. Lows in the mid 30s to around 40. Tuesday: Sunny. Highs around 60. Tuesday Night: Mostly clear in the evening then partly cloudy. Lows in the mid 30s to around 40. Wednesday: A chance of rain in the morning, then rain in the afternoon. Highs in the mid to upper 50s. Wednesday Night: Rain with a slight chance of thunderstorms in the evening, then rain after midnight. Lows in the lower to mid 40s. Thursday: Rain with a chance of thunderstorms. Highs in the mid 50s to around 60. Thursday Night: Rain likely in the evening, then a chance of rain after midnight. Lows around 40. Chance of precipitation 70 percent. Friday: Partly cloudy. A 20 percent chance of rain in the morning. Highs around 60. Friday Night: Partly cloudy in the evening then mostly clear. Lows in the mid 30s to around 40. Saturday: Partly cloudy. Highs in the lower 60s. |
| Flood Impacts | |
| 31.0 Feet | Flooding along reach of river including in and around paso robles. Flooding threatens paso robles wastewater treatment plant and downtown. |
| 29.0 Feet | Flooding in and around atascadero. Backs up atascadero creek into river gardens neighborhood, floods highway 41. Erosion threats along entire reach, threatens homes on banks, agricultural land, low-lying areas south of highway 41 bridge. |
| 23.0 Feet | Halcon Road near Atascadero floods and washes out. |
| 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 Los Angeles-Oxnard 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. |
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