MIDDLE FORK COSUMNES RIVER - SOMERSET (SOSC1)
Latitude: 38.62º NLongitude: 120.70º WElevation: 1821 Feet
Location: El Dorado County in CaliforniaBulletin Group: San JoaquinRiver Group: North San Joaquin
Issuance Time: May 08 2025 at 8:12 AM PDTNext Issuance: May 09 2025 at 9:00 AM PDT
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Middle Fork Cosumnes River - Somerset (SOSC1)
#
# File Generation Time:  05/08/2025 at 08:13 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  05/05/2025 at 01:00 AM PDT
# Maximum Observed Stage:                       5.33 Feet
# Maximum Observed Flow:                        173 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/13/2025 at 05:00 AM PDT
# Maximum Forecast Stage:                       5.33 Feet
# Maximum Forecast Flow:                        173 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  05/03/2025 08 AM PDT            5.31            170                Not Applicable
  05/03/2025 09 AM PDT            5.31            170         0      Not Applicable
  05/03/2025 10 AM PDT            5.29            166         -      Not Applicable
  05/03/2025 11 AM PDT            5.29            166         0      Not Applicable
  05/03/2025 12 PM PDT            5.29            166         0      Not Applicable
  05/03/2025 01 PM PDT            5.28            164         -      Not Applicable
  05/03/2025 02 PM PDT            5.28            164         0      Not Applicable
  05/03/2025 03 PM PDT            5.27            163         -      Not Applicable
  05/03/2025 04 PM PDT            5.27            163         0      Not Applicable
  05/03/2025 05 PM PDT            5.26            161         -      Not Applicable
  05/03/2025 06 PM PDT            5.26            161         0      Not Applicable
  05/03/2025 07 PM PDT            5.25            159         -      Not Applicable
  05/03/2025 08 PM PDT            5.25            159         0      Not Applicable
  05/03/2025 09 PM PDT            5.24            158         -      Not Applicable
  05/03/2025 10 PM PDT            5.23            156         -      Not Applicable
  05/03/2025 11 PM PDT            5.24            158         +      Not Applicable
  05/04/2025 12 AM PDT            5.23            156         -      Not Applicable
  05/04/2025 01 AM PDT            5.22            154         -      Not Applicable
  05/04/2025 02 AM PDT            5.24            158         +      Not Applicable
  05/04/2025 03 AM PDT            5.25            159         +      Not Applicable
  05/04/2025 04 AM PDT            5.26            161         +      Not Applicable
  05/04/2025 05 AM PDT            5.27            163         +      Not Applicable
  05/04/2025 06 AM PDT            5.29            166         +      Not Applicable
  05/04/2025 07 AM PDT            5.28            164         -      Not Applicable
  05/04/2025 08 AM PDT            5.28            164         0      Not Applicable
  05/04/2025 09 AM PDT            5.28            164         0      Not Applicable
  05/04/2025 10 AM PDT            5.27            163         -      Not Applicable
  05/04/2025 11 AM PDT            5.27            163         0      Not Applicable
  05/04/2025 12 PM PDT            5.27            163         0      Not Applicable
  05/04/2025 01 PM PDT            5.26            161         -      Not Applicable
  05/04/2025 02 PM PDT            5.25            159         -      Not Applicable
  05/04/2025 03 PM PDT            5.24            158         -      Not Applicable
  05/04/2025 04 PM PDT            5.24            158         0      Not Applicable
  05/04/2025 05 PM PDT            5.25            159         +      Not Applicable
  05/04/2025 06 PM PDT            5.26            161         +      Not Applicable
  05/04/2025 07 PM PDT            5.26            161         0      Not Applicable
  05/04/2025 08 PM PDT            5.27            163         +      Not Applicable
  05/04/2025 09 PM PDT            5.27            163         0      Not Applicable
  05/04/2025 10 PM PDT            5.28            164         +      Not Applicable
  05/04/2025 11 PM PDT            5.30            168         +      Not Applicable
  05/05/2025 12 AM PDT            5.33            173         +      Not Applicable
  05/05/2025 01 AM PDT            5.33            173         0      Not Applicable
  05/05/2025 02 AM PDT            5.32            171         -      Not Applicable
  05/05/2025 03 AM PDT            5.32            171         0      Not Applicable
  05/05/2025 04 AM PDT            5.31            170         -      Not Applicable
  05/05/2025 05 AM PDT            5.30            168         -      Not Applicable
  05/05/2025 06 AM PDT            5.30            168         0      Not Applicable
  05/05/2025 07 AM PDT            5.31            170         +      Not Applicable
  05/05/2025 08 AM PDT            5.30            168         -      Not Applicable
  05/05/2025 09 AM PDT            5.29            166         -      Not Applicable
  05/05/2025 10 AM PDT            5.28            164         -      Not Applicable
  05/05/2025 11 AM PDT            5.27            163         -      Not Applicable
  05/05/2025 12 PM PDT            5.26            161         -      Not Applicable
  05/05/2025 01 PM PDT            5.25            159         -      Not Applicable
  05/05/2025 02 PM PDT            5.25            159         0      Not Applicable
  05/05/2025 03 PM PDT            5.25            159         0      Not Applicable
  05/05/2025 04 PM PDT            5.24            158         -      Not Applicable
  05/05/2025 05 PM PDT            5.23            156         -      Not Applicable
  05/05/2025 06 PM PDT            5.21            153         -      Not Applicable
  05/05/2025 07 PM PDT            5.21            153         0      Not Applicable
  05/05/2025 08 PM PDT            5.20            151         -      Not Applicable
  05/05/2025 09 PM PDT            5.20            151         0      Not Applicable
  05/05/2025 10 PM PDT            5.19            149         -      Not Applicable
  05/05/2025 11 PM PDT            5.18            148         -      Not Applicable
  05/06/2025 12 AM PDT            5.18            148         0      Not Applicable
  05/06/2025 01 AM PDT            5.18            148         0      Not Applicable
  05/06/2025 02 AM PDT            5.20            151         +      Not Applicable
  05/06/2025 03 AM PDT            5.22            154         +      Not Applicable
  05/06/2025 04 AM PDT            5.24            158         +      Not Applicable
  05/06/2025 05 AM PDT            5.25            159         +      Not Applicable
  05/06/2025 06 AM PDT            5.26            161         +      Not Applicable
  05/06/2025 07 AM PDT            5.26            161         0      Not Applicable
  05/06/2025 08 AM PDT            5.24            158         -      Not Applicable
  05/06/2025 09 AM PDT            5.24            158         0      Not Applicable
  05/06/2025 10 AM PDT            5.23            156         -      Not Applicable
  05/06/2025 11 AM PDT            5.23            156         0      Not Applicable
  05/06/2025 12 PM PDT            5.22            154         -      Not Applicable
  05/06/2025 01 PM PDT            5.22            154         0      Not Applicable
  05/06/2025 02 PM PDT            5.22            154         0      Not Applicable
  05/06/2025 03 PM PDT            5.21            153         -      Not Applicable
  05/06/2025 04 PM PDT            5.20            151         -      Not Applicable
  05/06/2025 05 PM PDT            5.19            149         -      Not Applicable
  05/06/2025 06 PM PDT            5.18            148         -      Not Applicable
  05/06/2025 07 PM PDT            5.19            149         +      Not Applicable
  05/06/2025 08 PM PDT            5.17            146         -      Not Applicable
  05/06/2025 09 PM PDT            5.16            144         -      Not Applicable
  05/06/2025 10 PM PDT            5.16            144         0      Not Applicable
  05/06/2025 11 PM PDT            5.15            143         -      Not Applicable
  05/07/2025 12 AM PDT            5.15            143         0      Not Applicable
  05/07/2025 01 AM PDT            5.14            141         -      Not Applicable
  05/07/2025 02 AM PDT            5.15            143         +      Not Applicable
  05/07/2025 03 AM PDT            5.16            144         +      Not Applicable
  05/07/2025 04 AM PDT            5.18            148         +      Not Applicable
  05/07/2025 05 AM PDT            5.20            151         +      Not Applicable
  05/07/2025 06 AM PDT            5.20            151         0      Not Applicable
  05/07/2025 07 AM PDT            5.20            151         0      Not Applicable
  05/07/2025 08 AM PDT            5.20            151         0      Not Applicable
  05/07/2025 09 AM PDT            5.20            151         0      Not Applicable
  05/07/2025 10 AM PDT            5.19            149         -      Not Applicable
  05/07/2025 11 AM PDT            5.19            149         0      Not Applicable
  05/07/2025 12 PM PDT            5.18            148         -      Not Applicable
  05/07/2025 01 PM PDT            5.18            148         0      Not Applicable
  05/07/2025 02 PM PDT            5.17            146         -      Not Applicable
  05/07/2025 03 PM PDT            5.17            146         0      Not Applicable
  05/07/2025 04 PM PDT            5.16            144         -      Not Applicable
  05/07/2025 05 PM PDT            5.16            144         0      Not Applicable
  05/07/2025 06 PM PDT            5.14            141         -      Not Applicable
  05/07/2025 07 PM PDT            5.14            141         0      Not Applicable
  05/07/2025 08 PM PDT            5.13            140         -      Not Applicable
  05/07/2025 09 PM PDT            5.13            140         0      Not Applicable
  05/07/2025 10 PM PDT            5.12            138         -      Not Applicable
  05/07/2025 11 PM PDT            5.11            137         -      Not Applicable
  05/08/2025 12 AM PDT            5.10            135         -      Not Applicable
  05/08/2025 01 AM PDT            5.10            135         0      Not Applicable
  05/08/2025 02 AM PDT            5.10            135         0      Not Applicable
  05/08/2025 03 AM PDT            5.13            140         +      Not Applicable
  05/08/2025 04 AM PDT            5.15            143         +      Not Applicable
  05/08/2025 05 AM PDT            5.17            146         +      Not Applicable
  05/08/2025 06 AM PDT            5.18            148         +      Not Applicable
  05/08/2025 07 AM PDT            5.18            148         0      Not Applicable
  05/08/2025 08 AM PDT            5.18            148         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/08/2025 09 AM PDT            5.17            146                Not Applicable
  05/08/2025 10 AM PDT            5.17            146         0      Not Applicable
  05/08/2025 11 AM PDT            5.17            146         0      Not Applicable
  05/08/2025 12 PM PDT            5.17            146         0      Not Applicable
  05/08/2025 01 PM PDT            5.16            144         -      Not Applicable
  05/08/2025 02 PM PDT            5.16            144         0      Not Applicable
  05/08/2025 03 PM PDT            5.16            144         0      Not Applicable
  05/08/2025 04 PM PDT            5.16            144         0      Not Applicable
  05/08/2025 05 PM PDT            5.15            143         -      Not Applicable
  05/08/2025 06 PM PDT            5.15            143         0      Not Applicable
  05/08/2025 07 PM PDT            5.15            143         0      Not Applicable
  05/08/2025 08 PM PDT            5.15            143         0      Not Applicable
  05/08/2025 09 PM PDT            5.16            144         +      Not Applicable
  05/08/2025 10 PM PDT            5.16            144         0      Not Applicable
  05/08/2025 11 PM PDT            5.16            144         0      Not Applicable
  05/09/2025 12 AM PDT            5.16            144         0      Not Applicable
  05/09/2025 01 AM PDT            5.16            144         0      Not Applicable
  05/09/2025 02 AM PDT            5.16            144         0      Not Applicable
  05/09/2025 03 AM PDT            5.17            146         +      Not Applicable
  05/09/2025 04 AM PDT            5.17            146         0      Not Applicable
  05/09/2025 05 AM PDT            5.17            146         0      Not Applicable
  05/09/2025 06 AM PDT            5.17            146         0      Not Applicable
  05/09/2025 07 AM PDT            5.17            146         0      Not Applicable
  05/09/2025 08 AM PDT            5.17            146         0      Not Applicable
  05/09/2025 09 AM PDT            5.17            146         0      Not Applicable
  05/09/2025 10 AM PDT            5.17            146         0      Not Applicable
  05/09/2025 11 AM PDT            5.17            146         0      Not Applicable
  05/09/2025 12 PM PDT            5.17            146         0      Not Applicable
  05/09/2025 01 PM PDT            5.17            146         0      Not Applicable
  05/09/2025 02 PM PDT            5.17            146         0      Not Applicable
  05/09/2025 03 PM PDT            5.17            146         0      Not Applicable
  05/09/2025 04 PM PDT            5.17            146         0      Not Applicable
  05/09/2025 05 PM PDT            5.17            146         0      Not Applicable
  05/09/2025 06 PM PDT            5.18            148         +      Not Applicable
  05/09/2025 07 PM PDT            5.18            148         0      Not Applicable
  05/09/2025 08 PM PDT            5.18            148         0      Not Applicable
  05/09/2025 09 PM PDT            5.19            149         +      Not Applicable
  05/09/2025 10 PM PDT            5.19            149         0      Not Applicable
  05/09/2025 11 PM PDT            5.20            151         +      Not Applicable
  05/10/2025 12 AM PDT            5.20            151         0      Not Applicable
  05/10/2025 01 AM PDT            5.21            153         +      Not Applicable
  05/10/2025 02 AM PDT            5.21            153         0      Not Applicable
  05/10/2025 03 AM PDT            5.21            153         0      Not Applicable
  05/10/2025 04 AM PDT            5.21            153         0      Not Applicable
  05/10/2025 05 AM PDT            5.21            153         0      Not Applicable
  05/10/2025 06 AM PDT            5.22            154         +      Not Applicable
  05/10/2025 07 AM PDT            5.22            154         0      Not Applicable
  05/10/2025 08 AM PDT            5.22            154         0      Not Applicable
  05/10/2025 09 AM PDT            5.22            154         0      Not Applicable
  05/10/2025 10 AM PDT            5.22            154         0      Not Applicable
  05/10/2025 11 AM PDT            5.22            154         0      Not Applicable
  05/10/2025 12 PM PDT            5.22            154         0      Not Applicable
  05/10/2025 01 PM PDT            5.22            154         0      Not Applicable
  05/10/2025 02 PM PDT            5.22            154         0      Not Applicable
  05/10/2025 03 PM PDT            5.22            154         0      Not Applicable
  05/10/2025 04 PM PDT            5.22            154         0      Not Applicable
  05/10/2025 05 PM PDT            5.22            154         0      Not Applicable
  05/10/2025 06 PM PDT            5.22            154         0      Not Applicable
  05/10/2025 07 PM PDT            5.22            154         0      Not Applicable
  05/10/2025 08 PM PDT            5.22            154         0      Not Applicable
  05/10/2025 09 PM PDT            5.22            154         0      Not Applicable
  05/10/2025 10 PM PDT            5.23            156         +      Not Applicable
  05/10/2025 11 PM PDT            5.23            156         0      Not Applicable
  05/11/2025 12 AM PDT            5.23            156         0      Not Applicable
  05/11/2025 01 AM PDT            5.23            156         0      Not Applicable
  05/11/2025 02 AM PDT            5.23            156         0      Not Applicable
  05/11/2025 03 AM PDT            5.23            156         0      Not Applicable
  05/11/2025 04 AM PDT            5.23            156         0      Not Applicable
  05/11/2025 05 AM PDT            5.23            156         0      Not Applicable
  05/11/2025 06 AM PDT            5.23            156         0      Not Applicable
  05/11/2025 07 AM PDT            5.23            156         0      Not Applicable
  05/11/2025 08 AM PDT            5.23            156         0      Not Applicable
  05/11/2025 09 AM PDT            5.23            156         0      Not Applicable
  05/11/2025 10 AM PDT            5.23            156         0      Not Applicable
  05/11/2025 11 AM PDT            5.22            154         -      Not Applicable
  05/11/2025 12 PM PDT            5.22            154         0      Not Applicable
  05/11/2025 01 PM PDT            5.22            154         0      Not Applicable
  05/11/2025 02 PM PDT            5.22            154         0      Not Applicable
  05/11/2025 03 PM PDT            5.21            153         -      Not Applicable
  05/11/2025 04 PM PDT            5.21            153         0      Not Applicable
  05/11/2025 05 PM PDT            5.21            153         0      Not Applicable
  05/11/2025 06 PM PDT            5.21            153         0      Not Applicable
  05/11/2025 07 PM PDT            5.20            151         -      Not Applicable
  05/11/2025 08 PM PDT            5.20            151         0      Not Applicable
  05/11/2025 09 PM PDT            5.20            151         0      Not Applicable
  05/11/2025 10 PM PDT            5.19            149         -      Not Applicable
  05/11/2025 11 PM PDT            5.19            149         0      Not Applicable
  05/12/2025 12 AM PDT            5.19            149         0      Not Applicable
  05/12/2025 01 AM PDT            5.18            148         -      Not Applicable
  05/12/2025 02 AM PDT            5.18            148         0      Not Applicable
  05/12/2025 03 AM PDT            5.17            146         -      Not Applicable
  05/12/2025 04 AM PDT            5.17            146         0      Not Applicable
  05/12/2025 05 AM PDT            5.17            146         0      Not Applicable
  05/12/2025 06 AM PDT            5.16            144         -      Not Applicable
  05/12/2025 07 AM PDT            5.16            144         0      Not Applicable
  05/12/2025 08 AM PDT            5.15            143         -      Not Applicable
  05/12/2025 09 AM PDT            5.15            143         0      Not Applicable
  05/12/2025 10 AM PDT            5.15            143         0      Not Applicable
  05/12/2025 11 AM PDT            5.14            141         -      Not Applicable
  05/12/2025 12 PM PDT            5.14            141         0      Not Applicable
  05/12/2025 01 PM PDT            5.13            140         -      Not Applicable
  05/12/2025 02 PM PDT            5.13            140         0      Not Applicable
  05/12/2025 03 PM PDT            5.13            140         0      Not Applicable
  05/12/2025 04 PM PDT            5.13            140         0      Not Applicable
  05/12/2025 05 PM PDT            5.14            141         +      Not Applicable
  05/12/2025 06 PM PDT            5.15            143         +      Not Applicable
  05/12/2025 07 PM PDT            5.17            146         +      Not Applicable
  05/12/2025 08 PM PDT            5.18            148         +      Not Applicable
  05/12/2025 09 PM PDT            5.20            151         +      Not Applicable
  05/12/2025 10 PM PDT            5.22            154         +      Not Applicable
  05/12/2025 11 PM PDT            5.24            158         +      Not Applicable
  05/13/2025 12 AM PDT            5.26            161         +      Not Applicable
  05/13/2025 01 AM PDT            5.28            164         +      Not Applicable
  05/13/2025 02 AM PDT            5.29            166         +      Not Applicable
  05/13/2025 03 AM PDT            5.31            170         +      Not Applicable
  05/13/2025 04 AM PDT            5.32            171         +      Not Applicable
  05/13/2025 05 AM PDT            5.33            173         +      Not Applicable
#
# 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.