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| SANTA MARGARITA - YSIDORA (YDRC1) | ||||||||||||||||||
| Latitude: 33.31º N | Longitude: 117.35º W | Elevation: 75 Feet | ||||||||||||||||
| Location: San Diego County in CA | ||||||||||||||||||
| River Group: Southern California | ||||||||||||||||||
| Issuance Time: | Jul 07 2025 at 8:05 AM PDT |
| 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. |
| 2025 Water Year Accumulated Volume Plot | CSV Ensemble Files (Data in kcfs): Forecast Group | YDRC1 |
| Location Photographs | ||
| ESRI™ Locator Map |
| Official 7 Day National Weather Service Forecast (CAZ043) |
| Today: Partly cloudy with patchy fog This Morning and becoming mostly sunny. Highs 71 to 76 near the coast to 78 to 82 inland. Areas of winds northwest 10 to 15 mph. Tonight: Mostly clear in the evening and becoming partly cloudy overnight with patchy fog. Lows 60 to 65. Areas of winds northwest 10 mph in the evening becoming light. Wednesday: Partly cloudy with patchy fog in the morning and Becoming mostly sunny. Highs 73 to 78 near the coast to 80 to 84 inland. Areas of winds northwest to 10 mph becoming west in the afternoon. Wednesday Night: Mostly clear in the evening and becoming mostly cloudy overnight with patchy fog. Lows 60 to 65. Areas of winds west 10 to 15 mph in the evening becoming light. Thursday: Mostly cloudy with patchy fog in the morning and Becoming mostly sunny. Highs 73 to 78 near the coast to 81 to 85 inland. Areas of winds west to 10 mph. Thursday Night: Mostly clear in the evening and becoming cloudy overnight with patchy fog. Lows 60 to 65. Friday: Cloudy in the morning and becoming partly cloudy. Patchy fog in the morning. Highs 71 to 75 near the coast to 80 inland. Friday Night: Mostly clear in the evening and becoming cloudy overnight with patchy fog. Lows 59 to 64. Saturday: Cloudy with patchy fog in the morning and becoming mostly sunny. Highs 70 to 75 near the coast to 76 to 80 inland. Saturday Night: Mostly clear in the evening and becoming mostly cloudy overnight with patchy fog. Lows 58 to 64. Sunday: Mostly cloudy with patchy fog in the morning and becoming mostly sunny. Highs 71 to 75 near the coast to 77 to 81 inland. Sunday Night: Mostly clear in the evening and becoming mostly cloudy overnight with patchy fog. Lows 59 to 64. Monday: Cloudy with patchy fog in the morning and becoming mostly sunny. Highs 71 to 75 near the coast to 80 inland. |
| Flood Impacts | |
| 16.0 Feet | Major flood, 37,000 cfs. Widespread inundation of Camp Pendleton with evacuations likely. Flood of Record Jan 16, 1993. |
| 13.33 Feet | Moderate flood stage, 17,000 cfs. Vandegrift Road is flooded for several miles downstream of the gage site. Stuart Mesa Road is flooded near the bridge. |
| 11.16 Feet | Minor flood stage, 8,000 cfs. Vandegrift Road has begun to flood downstream of the gage. Stuart Mesa Road closures can be expected. |
| 8.18 Feet | 2,500 cfs. The river has reached monitor stage. Personnel begin regular patrols along the levee. |