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SANTA MARGARITA RIVER - YSIDORA (YDRC1)
| Latitude: 33.31º N | Longitude: 117.35º W | Elevation: 75 Feet | | Forecast Type: Official Location |
| Location: San Diego County in California | Bulletin Group: Southern California | River Group: San Diego/Inland |
| Issuance Time: | Nov 11 2026 at 7:32 AM PST | Next Issuance: | Nov 12 2026 at 9:00 AM PST
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| Action: 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: 11/11/2026 at 07:32 AM PST
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 11/11/2026 at 07:00 AM PST
# Maximum Observed Stage: 7.18 Feet
# Maximum Observed Flow: 1 cfs
#
# Earliest Date & Time of Maximum Forecast: 11/14/2026 at 05:00 PM PST
# Maximum Forecast Stage: 8.09 Feet
# Maximum Forecast Flow: 178 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
11/06/2026 07 AM PST 7.17 0 Normal
11/06/2026 08 AM PST 7.17 0 0 Normal
11/06/2026 09 AM PST 7.17 0 0 Normal
11/06/2026 10 AM PST 7.17 0 0 Normal
11/06/2026 11 AM PST 7.17 0 0 Normal
11/06/2026 12 PM PST 7.17 0 0 Normal
11/06/2026 01 PM PST 7.17 0 0 Normal
11/06/2026 02 PM PST 7.17 0 0 Normal
11/06/2026 03 PM PST 7.17 0 0 Normal
11/06/2026 04 PM PST 7.17 0 0 Normal
11/06/2026 05 PM PST 7.17 0 0 Normal
11/06/2026 06 PM PST 7.17 0 0 Normal
11/06/2026 07 PM PST 7.17 0 0 Normal
11/06/2026 08 PM PST 7.17 0 0 Normal
11/06/2026 09 PM PST 7.17 0 0 Normal
11/06/2026 10 PM PST 7.17 0 0 Normal
11/06/2026 11 PM PST 7.17 0 0 Normal
11/07/2026 12 AM PST 7.17 0 0 Normal
11/07/2026 01 AM PST 7.17 0 0 Normal
11/07/2026 02 AM PST 7.17 0 0 Normal
11/07/2026 03 AM PST 7.17 0 0 Normal
11/07/2026 04 AM PST 7.17 0 0 Normal
11/07/2026 05 AM PST 7.17 0 0 Normal
11/07/2026 06 AM PST 7.17 0 0 Normal
11/07/2026 07 AM PST 7.17 0 0 Normal
11/07/2026 08 AM PST 7.17 0 0 Normal
11/07/2026 09 AM PST 7.17 0 0 Normal
11/07/2026 10 AM PST 7.17 0 0 Normal
11/07/2026 11 AM PST 7.17 0 0 Normal
11/07/2026 12 PM PST 7.17 0 0 Normal
11/07/2026 01 PM PST 7.17 0 0 Normal
11/07/2026 02 PM PST 7.17 0 0 Normal
11/07/2026 03 PM PST 7.17 0 0 Normal
11/07/2026 04 PM PST 7.17 0 0 Normal
11/07/2026 05 PM PST 7.17 0 0 Normal
11/07/2026 06 PM PST 7.17 0 0 Normal
11/07/2026 07 PM PST 7.17 0 0 Normal
11/07/2026 08 PM PST 7.17 0 0 Normal
11/07/2026 09 PM PST 7.17 0 0 Normal
11/07/2026 10 PM PST 7.17 0 0 Normal
11/07/2026 11 PM PST 7.17 0 0 Normal
11/08/2026 12 AM PST 7.17 0 0 Normal
11/08/2026 01 AM PST 7.17 0 0 Normal
11/08/2026 02 AM PST 7.17 0 0 Normal
11/08/2026 03 AM PST 7.17 0 0 Normal
11/08/2026 04 AM PST 7.17 0 0 Normal
11/08/2026 05 AM PST 7.17 0 0 Normal
11/08/2026 06 AM PST 7.17 0 0 Normal
11/08/2026 07 AM PST 7.17 0 0 Normal
11/08/2026 08 AM PST 7.17 0 0 Normal
11/08/2026 09 AM PST 7.17 0 0 Normal
11/08/2026 10 AM PST 7.17 0 0 Normal
11/08/2026 11 AM PST 7.17 0 0 Normal
11/08/2026 12 PM PST 7.17 0 0 Normal
11/08/2026 01 PM PST 7.17 0 0 Normal
11/08/2026 02 PM PST 7.17 0 0 Normal
11/08/2026 03 PM PST 7.17 0 0 Normal
11/08/2026 04 PM PST 7.17 0 0 Normal
11/08/2026 05 PM PST 7.17 0 0 Normal
11/08/2026 06 PM PST 7.17 0 0 Normal
11/08/2026 07 PM PST 7.17 0 0 Normal
11/08/2026 08 PM PST 7.17 0 0 Normal
11/08/2026 09 PM PST 7.17 0 0 Normal
11/08/2026 10 PM PST 7.17 0 0 Normal
11/08/2026 11 PM PST 7.17 0 0 Normal
11/09/2026 12 AM PST 7.17 0 0 Normal
11/09/2026 01 AM PST 7.17 0 0 Normal
11/09/2026 02 AM PST 7.17 0 0 Normal
11/09/2026 03 AM PST 7.17 0 0 Normal
11/09/2026 04 AM PST 7.17 0 0 Normal
11/09/2026 05 AM PST 7.17 0 0 Normal
11/09/2026 06 AM PST 7.17 0 0 Normal
11/09/2026 07 AM PST 7.17 0 0 Normal
11/09/2026 08 AM PST 7.17 0 0 Normal
11/09/2026 09 AM PST 7.17 0 0 Normal
11/09/2026 10 AM PST 7.17 0 0 Normal
11/09/2026 11 AM PST 7.17 0 0 Normal
11/09/2026 12 PM PST 7.17 0 0 Normal
11/09/2026 01 PM PST 7.17 0 0 Normal
11/09/2026 02 PM PST 7.17 0 0 Normal
11/09/2026 03 PM PST 7.17 0 0 Normal
11/09/2026 04 PM PST 7.17 0 0 Normal
11/09/2026 05 PM PST 7.17 0 0 Normal
11/09/2026 06 PM PST 7.17 0 0 Normal
11/09/2026 07 PM PST 7.17 0 0 Normal
11/09/2026 08 PM PST 7.17 0 0 Normal
11/09/2026 09 PM PST 7.17 0 0 Normal
11/09/2026 10 PM PST 7.17 0 0 Normal
11/09/2026 11 PM PST 7.17 0 0 Normal
11/10/2026 12 AM PST 7.17 0 0 Normal
11/10/2026 01 AM PST 7.17 0 0 Normal
11/10/2026 02 AM PST 7.17 0 0 Normal
11/10/2026 03 AM PST 7.17 0 0 Normal
11/10/2026 04 AM PST 7.17 0 0 Normal
11/10/2026 05 AM PST 7.17 0 0 Normal
11/10/2026 06 AM PST 7.17 0 0 Normal
11/10/2026 07 AM PST 7.17 0 0 Normal
11/10/2026 08 AM PST 7.17 0 0 Normal
11/10/2026 09 AM PST 7.17 0 0 Normal
11/10/2026 10 AM PST 7.17 0 0 Normal
11/10/2026 11 AM PST 7.17 0 0 Normal
11/10/2026 12 PM PST 7.17 0 0 Normal
11/10/2026 01 PM PST 7.17 0 0 Normal
11/10/2026 02 PM PST 7.17 0 0 Normal
11/10/2026 03 PM PST 7.17 0 0 Normal
11/10/2026 04 PM PST 7.17 0 0 Normal
11/10/2026 05 PM PST 7.17 0 0 Normal
11/10/2026 06 PM PST 7.17 0 0 Normal
11/10/2026 07 PM PST 7.17 0 0 Normal
11/10/2026 08 PM PST 7.17 0 0 Normal
11/10/2026 09 PM PST 7.17 0 0 Normal
11/10/2026 10 PM PST 7.17 0 0 Normal
11/10/2026 11 PM PST 7.17 0 0 Normal
11/11/2026 12 AM PST 7.17 0 0 Normal
11/11/2026 01 AM PST 7.17 0 0 Normal
11/11/2026 02 AM PST 7.17 0 0 Normal
11/11/2026 03 AM PST 7.17 0 0 Normal
11/11/2026 04 AM PST 7.17 0 0 Normal
11/11/2026 05 AM PST 7.17 0 0 Normal
11/11/2026 06 AM PST 7.17 0 0 Normal
11/11/2026 07 AM PST 7.18 1 + Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
11/11/2026 08 AM PST 7.17 0 Normal
11/11/2026 09 AM PST 7.17 0 0 Normal
11/11/2026 10 AM PST 7.17 0 0 Normal
11/11/2026 11 AM PST 7.17 0 0 Normal
11/11/2026 12 PM PST 7.17 0 0 Normal
11/11/2026 01 PM PST 7.17 0 0 Normal
11/11/2026 02 PM PST 7.17 0 0 Normal
11/11/2026 03 PM PST 7.17 0 0 Normal
11/11/2026 04 PM PST 7.17 0 0 Normal
11/11/2026 05 PM PST 7.17 0 0 Normal
11/11/2026 06 PM PST 7.17 0 0 Normal
11/11/2026 07 PM PST 7.17 0 0 Normal
11/11/2026 08 PM PST 7.17 0 0 Normal
11/11/2026 09 PM PST 7.17 0 0 Normal
11/11/2026 10 PM PST 7.17 0 0 Normal
11/11/2026 11 PM PST 7.17 0 0 Normal
11/12/2026 12 AM PST 7.17 0 0 Normal
11/12/2026 01 AM PST 7.17 0 0 Normal
11/12/2026 02 AM PST 7.17 0 0 Normal
11/12/2026 03 AM PST 7.17 0 0 Normal
11/12/2026 04 AM PST 7.17 0 0 Normal
11/12/2026 05 AM PST 7.17 0 0 Normal
11/12/2026 06 AM PST 7.17 0 0 Normal
11/12/2026 07 AM PST 7.17 0 0 Normal
11/12/2026 08 AM PST 7.17 0 0 Normal
11/12/2026 09 AM PST 7.17 0 0 Normal
11/12/2026 10 AM PST 7.17 0 0 Normal
11/12/2026 11 AM PST 7.17 0 0 Normal
11/12/2026 12 PM PST 7.17 0 0 Normal
11/12/2026 01 PM PST 7.17 0 0 Normal
11/12/2026 02 PM PST 7.17 0 0 Normal
11/12/2026 03 PM PST 7.17 0 0 Normal
11/12/2026 04 PM PST 7.17 0 0 Normal
11/12/2026 05 PM PST 7.17 0 0 Normal
11/12/2026 06 PM PST 7.17 0 0 Normal
11/12/2026 07 PM PST 7.17 0 0 Normal
11/12/2026 08 PM PST 7.17 0 0 Normal
11/12/2026 09 PM PST 7.17 0 0 Normal
11/12/2026 10 PM PST 7.17 0 0 Normal
11/12/2026 11 PM PST 7.17 0 0 Normal
11/13/2026 12 AM PST 7.17 0 0 Normal
11/13/2026 01 AM PST 7.17 0 0 Normal
11/13/2026 02 AM PST 7.17 0 0 Normal
11/13/2026 03 AM PST 7.17 0 0 Normal
11/13/2026 04 AM PST 7.17 0 0 Normal
11/13/2026 05 AM PST 7.17 0 0 Normal
11/13/2026 06 AM PST 7.17 0 0 Normal
11/13/2026 07 AM PST 7.17 0 0 Normal
11/13/2026 08 AM PST 7.17 0 0 Normal
11/13/2026 09 AM PST 7.17 0 0 Normal
11/13/2026 10 AM PST 7.17 0 0 Normal
11/13/2026 11 AM PST 7.17 0 0 Normal
11/13/2026 12 PM PST 7.17 0 0 Normal
11/13/2026 01 PM PST 7.17 0 0 Normal
11/13/2026 02 PM PST 7.17 0 0 Normal
11/13/2026 03 PM PST 7.17 0 0 Normal
11/13/2026 04 PM PST 7.17 0 0 Normal
11/13/2026 05 PM PST 7.17 0 0 Normal
11/13/2026 06 PM PST 7.17 0 0 Normal
11/13/2026 07 PM PST 7.17 0 0 Normal
11/13/2026 08 PM PST 7.17 0 0 Normal
11/13/2026 09 PM PST 7.17 0 0 Normal
11/13/2026 10 PM PST 7.17 0 0 Normal
11/13/2026 11 PM PST 7.17 0 0 Normal
11/14/2026 12 AM PST 7.18 1 + Normal
11/14/2026 01 AM PST 7.18 1 0 Normal
11/14/2026 02 AM PST 7.20 2 + Normal
11/14/2026 03 AM PST 7.21 3 + Normal
11/14/2026 04 AM PST 7.22 4 + Normal
11/14/2026 05 AM PST 7.24 6 + Normal
11/14/2026 06 AM PST 7.26 7 + Normal
11/14/2026 07 AM PST 7.28 9 + Normal
11/14/2026 08 AM PST 7.30 11 + Normal
11/14/2026 09 AM PST 7.36 17 + Normal
11/14/2026 10 AM PST 7.46 30 + Normal
11/14/2026 11 AM PST 7.60 54 + Normal
11/14/2026 12 PM PST 7.73 80 + Normal
11/14/2026 01 PM PST 7.85 109 + Normal
11/14/2026 02 PM PST 7.95 136 + Normal
11/14/2026 03 PM PST 8.03 159 + Normal
11/14/2026 04 PM PST 8.08 175 + Normal
11/14/2026 05 PM PST 8.09 178 + Normal
11/14/2026 06 PM PST 8.08 175 - Normal
11/14/2026 07 PM PST 8.06 168 - Normal
11/14/2026 08 PM PST 8.03 159 - Normal
11/14/2026 09 PM PST 8.00 150 - Normal
11/14/2026 10 PM PST 7.96 139 - Normal
11/14/2026 11 PM PST 7.91 125 - Normal
11/15/2026 12 AM PST 7.86 112 - Normal
11/15/2026 01 AM PST 7.81 99 - Normal
11/15/2026 02 AM PST 7.76 87 - Normal
11/15/2026 03 AM PST 7.71 76 - Normal
11/15/2026 04 AM PST 7.66 65 - Normal
11/15/2026 05 AM PST 7.61 55 - Normal
11/15/2026 06 AM PST 7.56 46 - Normal
11/15/2026 07 AM PST 7.52 39 - Normal
11/15/2026 08 AM PST 7.48 33 - Normal
11/15/2026 09 AM PST 7.44 27 - Normal
11/15/2026 10 AM PST 7.41 23 - Normal
11/15/2026 11 AM PST 7.38 19 - Normal
11/15/2026 12 PM PST 7.35 16 - Normal
11/15/2026 01 PM PST 7.32 13 - Normal
11/15/2026 02 PM PST 7.30 11 - Normal
11/15/2026 03 PM PST 7.27 8 - Normal
11/15/2026 04 PM PST 7.25 6 - Normal
11/15/2026 05 PM PST 7.24 6 - Normal
11/15/2026 06 PM PST 7.23 5 - Normal
11/15/2026 07 PM PST 7.21 3 - Normal
11/15/2026 08 PM PST 7.21 3 0 Normal
11/15/2026 09 PM PST 7.20 2 - Normal
11/15/2026 10 PM PST 7.19 2 - Normal
11/15/2026 11 PM PST 7.19 2 0 Normal
11/16/2026 12 AM PST 7.19 2 0 Normal
11/16/2026 01 AM PST 7.18 1 - Normal
11/16/2026 02 AM PST 7.18 1 0 Normal
11/16/2026 03 AM PST 7.18 1 0 Normal
11/16/2026 04 AM PST 7.18 1 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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