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SANTA MARGARITA RIVER - YSIDORA (YDRC1)
| Latitude: 33.31º N | Longitude: 117.35º W | Elevation: 75 Feet | | | |
| Location: San Diego County in California | Bulletin Group: Southern California | River Group: San Diego/Inland |
| Issuance Time: | Dec 04 2025 at 1:26 PM PST | Next Issuance: | Dec 05 2025 at 9:00 AM PST
| |
| Action/Monitor: 10.85 Feet | Minor Flood: 12.5 Feet | Moderate Flood: 13.78 Feet | Major Flood: 16.29 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Santa Margarita River - Ysidora (YDRC1)
#
# File Generation Time: 12/04/2025 at 01:26 PM PST
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 12/02/2025 at 02:00 AM PST
# Maximum Observed Stage: 7.25 Feet
# Maximum Observed Flow: 35 cfs
#
# Earliest Date & Time of Maximum Forecast: 12/04/2025 at 02:00 PM PST
# Maximum Forecast Stage: 7.12 Feet
# Maximum Forecast Flow: 22 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
11/29/2025 01 PM PST 7.20 30 Normal
11/29/2025 02 PM PST 7.20 30 0 Normal
11/29/2025 03 PM PST 7.21 31 + Normal
11/29/2025 04 PM PST 7.19 29 - Normal
11/29/2025 05 PM PST 7.18 28 - Normal
11/29/2025 06 PM PST 7.18 28 0 Normal
11/29/2025 07 PM PST 7.17 27 - Normal
11/29/2025 08 PM PST 7.18 28 + Normal
11/29/2025 09 PM PST 7.19 29 + Normal
11/29/2025 10 PM PST 7.20 30 + Normal
11/29/2025 11 PM PST 7.18 28 - Normal
11/30/2025 12 AM PST 7.16 26 - Normal
11/30/2025 01 AM PST 7.16 26 0 Normal
11/30/2025 02 AM PST 7.12 22 - Normal
11/30/2025 03 AM PST 7.13 23 + Normal
11/30/2025 04 AM PST 7.12 22 - Normal
11/30/2025 05 AM PST 7.11 21 - Normal
11/30/2025 06 AM PST 7.14 24 + Normal
11/30/2025 07 AM PST 7.10 21 - Normal
11/30/2025 08 AM PST 7.06 17 - Normal
11/30/2025 09 AM PST 7.20 30 + Normal
11/30/2025 10 AM PST 7.20 30 0 Normal
11/30/2025 11 AM PST 7.18 28 - Normal
11/30/2025 12 PM PST 7.18 28 0 Normal
11/30/2025 01 PM PST 7.19 29 + Normal
11/30/2025 02 PM PST 7.20 30 + Normal
11/30/2025 03 PM PST 7.16 26 - Normal
11/30/2025 04 PM PST 7.19 29 + Normal
11/30/2025 05 PM PST 7.13 23 - Normal
11/30/2025 06 PM PST 7.13 23 0 Normal
11/30/2025 07 PM PST 7.13 23 0 Normal
11/30/2025 08 PM PST 7.14 24 + Normal
11/30/2025 09 PM PST 7.16 26 + Normal
11/30/2025 10 PM PST 7.13 23 - Normal
11/30/2025 11 PM PST 7.14 24 + Normal
12/01/2025 12 AM PST 7.18 28 + Normal
12/01/2025 01 AM PST 7.14 24 - Normal
12/01/2025 02 AM PST 7.13 23 - Normal
12/01/2025 03 AM PST 7.14 24 + Normal
12/01/2025 04 AM PST 7.12 22 - Normal
12/01/2025 05 AM PST 7.13 23 + Normal
12/01/2025 06 AM PST 7.18 28 + Normal
12/01/2025 07 AM PST 7.18 28 0 Normal
12/01/2025 08 AM PST 7.16 26 - Normal
12/01/2025 09 AM PST 7.14 24 - Normal
12/01/2025 10 AM PST 7.16 26 + Normal
12/01/2025 11 AM PST 7.14 24 - Normal
12/01/2025 12 PM PST 7.19 29 + Normal
12/01/2025 01 PM PST 7.17 27 - Normal
12/01/2025 02 PM PST 7.13 23 - Normal
12/01/2025 03 PM PST 7.15 25 + Normal
12/01/2025 04 PM PST 7.15 25 0 Normal
12/01/2025 05 PM PST 7.13 23 - Normal
12/01/2025 06 PM PST 7.13 23 0 Normal
12/01/2025 07 PM PST 7.17 27 + Normal
12/01/2025 08 PM PST 7.13 23 - Normal
12/01/2025 09 PM PST 7.14 24 + Normal
12/01/2025 10 PM PST 7.13 23 - Normal
12/01/2025 11 PM PST 7.14 24 + Normal
12/02/2025 12 AM PST 7.11 21 - Normal
12/02/2025 01 AM PST 7.22 32 + Normal
12/02/2025 02 AM PST 7.25 35 + Normal
12/02/2025 03 AM PST 7.23 33 - Normal
12/02/2025 04 AM PST 7.24 34 + Normal
12/02/2025 05 AM PST 7.23 33 - Normal
12/02/2025 06 AM PST 7.23 33 0 Normal
12/02/2025 07 AM PST 7.19 29 - Normal
12/02/2025 08 AM PST 7.22 32 + Normal
12/02/2025 09 AM PST 7.13 23 - Normal
12/02/2025 10 AM PST 7.10 21 - Normal
12/02/2025 11 AM PST 7.15 25 + Normal
12/02/2025 12 PM PST 7.19 29 + Normal
12/02/2025 01 PM PST 7.21 31 + Normal
12/02/2025 02 PM PST 7.22 32 + Normal
12/02/2025 03 PM PST 7.13 23 - Normal
12/02/2025 04 PM PST 7.14 24 + Normal
12/02/2025 05 PM PST 7.20 30 + Normal
12/02/2025 06 PM PST 7.19 29 - Normal
12/02/2025 07 PM PST 7.21 31 + Normal
12/02/2025 08 PM PST 7.13 23 - Normal
12/02/2025 09 PM PST 7.09 20 - Normal
12/02/2025 10 PM PST 7.15 25 + Normal
12/02/2025 11 PM PST 7.19 29 + Normal
12/03/2025 12 AM PST 7.18 28 - Normal
12/03/2025 01 AM PST 7.15 25 - Normal
12/03/2025 02 AM PST 7.14 24 - Normal
12/03/2025 03 AM PST 7.19 29 + Normal
12/03/2025 04 AM PST 7.20 30 + Normal
12/03/2025 05 AM PST 7.15 25 - Normal
12/03/2025 06 AM PST 7.16 26 + Normal
12/03/2025 07 AM PST 7.18 28 + Normal
12/03/2025 08 AM PST 7.14 24 - Normal
12/03/2025 09 AM PST 7.18 28 + Normal
12/03/2025 10 AM PST 7.21 31 + Normal
12/03/2025 11 AM PST 7.18 28 - Normal
12/03/2025 12 PM PST 7.11 21 - Normal
12/03/2025 01 PM PST 7.15 25 + Normal
12/03/2025 02 PM PST 7.13 23 - Normal
12/03/2025 03 PM PST 7.11 21 - Normal
12/03/2025 04 PM PST 7.18 28 + Normal
12/03/2025 05 PM PST 7.19 29 + Normal
12/03/2025 06 PM PST 7.08 19 - Normal
12/03/2025 07 PM PST 7.14 24 + Normal
12/03/2025 08 PM PST 7.17 27 + Normal
12/03/2025 09 PM PST 7.16 26 - Normal
12/03/2025 10 PM PST 7.15 25 - Normal
12/03/2025 11 PM PST 7.18 28 + Normal
12/04/2025 12 AM PST 7.17 27 - Normal
12/04/2025 01 AM PST 7.18 28 + Normal
12/04/2025 02 AM PST 7.15 25 - Normal
12/04/2025 03 AM PST 7.20 30 + Normal
12/04/2025 04 AM PST 7.18 28 - Normal
12/04/2025 05 AM PST 7.17 27 - Normal
12/04/2025 06 AM PST 7.16 26 - Normal
12/04/2025 07 AM PST 7.12 22 - Normal
12/04/2025 08 AM PST 7.10 21 - Normal
12/04/2025 09 AM PST 7.12 22 + Normal
12/04/2025 10 AM PST 7.20 30 + Normal
12/04/2025 11 AM PST 7.18 28 - Normal
12/04/2025 12 PM PST 7.12 22 - Normal
12/04/2025 01 PM PST 7.12 22 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
12/04/2025 02 PM PST 7.12 22 Normal
12/04/2025 03 PM PST 7.12 22 0 Normal
12/04/2025 04 PM PST 7.12 22 0 Normal
12/04/2025 05 PM PST 7.12 22 0 Normal
12/04/2025 06 PM PST 7.11 21 - Normal
12/04/2025 07 PM PST 7.11 21 0 Normal
12/04/2025 08 PM PST 7.11 21 0 Normal
12/04/2025 09 PM PST 7.11 21 0 Normal
12/04/2025 10 PM PST 7.11 21 0 Normal
12/04/2025 11 PM PST 7.11 21 0 Normal
12/05/2025 12 AM PST 7.11 21 0 Normal
12/05/2025 01 AM PST 7.11 21 0 Normal
12/05/2025 02 AM PST 7.11 21 0 Normal
12/05/2025 03 AM PST 7.11 21 0 Normal
12/05/2025 04 AM PST 7.11 21 0 Normal
12/05/2025 05 AM PST 7.11 21 0 Normal
12/05/2025 06 AM PST 7.10 21 - Normal
12/05/2025 07 AM PST 7.10 21 0 Normal
12/05/2025 08 AM PST 7.10 21 0 Normal
12/05/2025 09 AM PST 7.10 21 0 Normal
12/05/2025 10 AM PST 7.10 21 0 Normal
12/05/2025 11 AM PST 7.10 21 0 Normal
12/05/2025 12 PM PST 7.10 21 0 Normal
12/05/2025 01 PM PST 7.10 21 0 Normal
12/05/2025 02 PM PST 7.10 21 0 Normal
12/05/2025 03 PM PST 7.10 21 0 Normal
12/05/2025 04 PM PST 7.10 21 0 Normal
12/05/2025 05 PM PST 7.09 20 - Normal
12/05/2025 06 PM PST 7.09 20 0 Normal
12/05/2025 07 PM PST 7.09 20 0 Normal
12/05/2025 08 PM PST 7.09 20 0 Normal
12/05/2025 09 PM PST 7.09 20 0 Normal
12/05/2025 10 PM PST 7.09 20 0 Normal
12/05/2025 11 PM PST 7.09 20 0 Normal
12/06/2025 12 AM PST 7.09 20 0 Normal
12/06/2025 01 AM PST 7.09 20 0 Normal
12/06/2025 02 AM PST 7.09 20 0 Normal
12/06/2025 03 AM PST 7.09 20 0 Normal
12/06/2025 04 AM PST 7.09 20 0 Normal
12/06/2025 05 AM PST 7.08 19 - Normal
12/06/2025 06 AM PST 7.08 19 0 Normal
12/06/2025 07 AM PST 7.08 19 0 Normal
12/06/2025 08 AM PST 7.08 19 0 Normal
12/06/2025 09 AM PST 7.08 19 0 Normal
12/06/2025 10 AM PST 7.08 19 0 Normal
12/06/2025 11 AM PST 7.08 19 0 Normal
12/06/2025 12 PM PST 7.08 19 0 Normal
12/06/2025 01 PM PST 7.08 19 0 Normal
12/06/2025 02 PM PST 7.08 19 0 Normal
12/06/2025 03 PM PST 7.08 19 0 Normal
12/06/2025 04 PM PST 7.08 19 0 Normal
12/06/2025 05 PM PST 7.08 19 0 Normal
12/06/2025 06 PM PST 7.07 18 - Normal
12/06/2025 07 PM PST 7.07 18 0 Normal
12/06/2025 08 PM PST 7.07 18 0 Normal
12/06/2025 09 PM PST 7.07 18 0 Normal
12/06/2025 10 PM PST 7.07 18 0 Normal
12/06/2025 11 PM PST 7.07 18 0 Normal
12/07/2025 12 AM PST 7.07 18 0 Normal
12/07/2025 01 AM PST 7.07 18 0 Normal
12/07/2025 02 AM PST 7.07 18 0 Normal
12/07/2025 03 AM PST 7.07 18 0 Normal
12/07/2025 04 AM PST 7.07 18 0 Normal
12/07/2025 05 AM PST 7.06 17 - Normal
12/07/2025 06 AM PST 7.06 17 0 Normal
12/07/2025 07 AM PST 7.06 17 0 Normal
12/07/2025 08 AM PST 7.06 17 0 Normal
12/07/2025 09 AM PST 7.06 17 0 Normal
12/07/2025 10 AM PST 7.06 17 0 Normal
12/07/2025 11 AM PST 7.06 17 0 Normal
12/07/2025 12 PM PST 7.06 17 0 Normal
12/07/2025 01 PM PST 7.06 17 0 Normal
12/07/2025 02 PM PST 7.06 17 0 Normal
12/07/2025 03 PM PST 7.05 17 - Normal
12/07/2025 04 PM PST 7.05 17 0 Normal
12/07/2025 05 PM PST 7.05 17 0 Normal
12/07/2025 06 PM PST 7.05 17 0 Normal
12/07/2025 07 PM PST 7.05 17 0 Normal
12/07/2025 08 PM PST 7.05 17 0 Normal
12/07/2025 09 PM PST 7.05 17 0 Normal
12/07/2025 10 PM PST 7.05 17 0 Normal
12/07/2025 11 PM PST 7.05 17 0 Normal
12/08/2025 12 AM PST 7.05 17 0 Normal
12/08/2025 01 AM PST 7.04 16 - Normal
12/08/2025 02 AM PST 7.04 16 0 Normal
12/08/2025 03 AM PST 7.04 16 0 Normal
12/08/2025 04 AM PST 7.04 16 0 Normal
12/08/2025 05 AM PST 7.04 16 0 Normal
12/08/2025 06 AM PST 7.04 16 0 Normal
12/08/2025 07 AM PST 7.04 16 0 Normal
12/08/2025 08 AM PST 7.04 16 0 Normal
12/08/2025 09 AM PST 7.04 16 0 Normal
12/08/2025 10 AM PST 7.04 16 0 Normal
12/08/2025 11 AM PST 7.04 16 0 Normal
12/08/2025 12 PM PST 7.03 15 - Normal
12/08/2025 01 PM PST 7.03 15 0 Normal
12/08/2025 02 PM PST 7.03 15 0 Normal
12/08/2025 03 PM PST 7.03 15 0 Normal
12/08/2025 04 PM PST 7.03 15 0 Normal
12/08/2025 05 PM PST 7.03 15 0 Normal
12/08/2025 06 PM PST 7.03 15 0 Normal
12/08/2025 07 PM PST 7.03 15 0 Normal
12/08/2025 08 PM PST 7.03 15 0 Normal
12/08/2025 09 PM PST 7.03 15 0 Normal
12/08/2025 10 PM PST 7.02 15 - Normal
12/08/2025 11 PM PST 7.02 15 0 Normal
12/09/2025 12 AM PST 7.02 15 0 Normal
12/09/2025 01 AM PST 7.02 15 0 Normal
12/09/2025 02 AM PST 7.02 15 0 Normal
12/09/2025 03 AM PST 7.02 15 0 Normal
12/09/2025 04 AM PST 7.02 15 0 Normal
#
# NOTE 1: Stages are rounded to the nearest hundredth (.01) of a foot.
# NOTE 2: Flows are rounded to the nearest (1) cfs.
# NOTE 3: Trends are determined using hourly change in unrounded stage and flow.
# NOTE 4: Maximum Values are determined using unrounded stage and flow.
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