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SACRAMENTO RIVER DELTA - MALLARD ISLAND (MLIC1)
| Latitude: 38.04º N | Longitude: 121.92º W | Elevation: 0 Feet | | Forecast Type: Unofficial Location |
| Location: Contra Costa County in California | Bulletin Group: Lower Sacramento | River Group: Lower Sacramento |
| Issuance Time: | Sep 18 2026 at 8:11 AM PDT | Next Issuance: | Sep 19 2026 at 9:00 AM PDT
| |
| Action: N/A | Minor Flood: N/A | Moderate Flood: N/A | Major Flood: N/A |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Sacramento River Delta - Mallard Island (MLIC1)
#
# File Generation Time: 09/18/2026 at 08:12 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 09/15/2026 at 06:00 PM PDT
# Maximum Observed Stage: 6.64 Feet
#
# Earliest Date & Time of Maximum Forecast: 09/18/2026 at 08:00 PM PDT
# Maximum Forecast Stage: 5.67 Feet
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Trend Observed Status
# ------------------------------------------------------------------
09/13/2026 08 AM PDT 3.76 Not Applicable
09/13/2026 09 AM PDT 3.09 - Not Applicable
09/13/2026 10 AM PDT 2.75 - Not Applicable
09/13/2026 11 AM PDT 2.55 - Not Applicable
09/13/2026 12 PM PDT 3.10 + Not Applicable
09/13/2026 01 PM PDT 4.25 + Not Applicable
09/13/2026 02 PM PDT 5.31 + Not Applicable
09/13/2026 03 PM PDT 5.91 + Not Applicable
09/13/2026 04 PM PDT 6.31 + Not Applicable
09/13/2026 05 PM PDT 6.43 + Not Applicable
09/13/2026 06 PM PDT 6.11 - Not Applicable
09/13/2026 07 PM PDT 5.19 - Not Applicable
09/13/2026 08 PM PDT 4.20 - Not Applicable
09/13/2026 09 PM PDT 3.39 - Not Applicable
09/13/2026 10 PM PDT 2.94 - Not Applicable
09/13/2026 11 PM PDT 2.52 - Not Applicable
09/14/2026 12 AM PDT 2.36 - Not Applicable
09/14/2026 01 AM PDT 2.87 + Not Applicable
09/14/2026 02 AM PDT 4.00 + Not Applicable
09/14/2026 03 AM PDT 4.96 + Not Applicable
09/14/2026 04 AM PDT 5.46 + Not Applicable
09/14/2026 05 AM PDT 5.70 + Not Applicable
09/14/2026 06 AM PDT 5.63 - Not Applicable
09/14/2026 07 AM PDT 5.19 - Not Applicable
09/14/2026 08 AM PDT 4.39 - Not Applicable
09/14/2026 09 AM PDT 3.62 - Not Applicable
09/14/2026 10 AM PDT 3.14 - Not Applicable
09/14/2026 11 AM PDT 2.88 - Not Applicable
09/14/2026 12 PM PDT 3.20 + Not Applicable
09/14/2026 01 PM PDT 4.03 + Not Applicable
09/14/2026 02 PM PDT 5.05 + Not Applicable
09/14/2026 03 PM PDT 5.79 + Not Applicable
09/14/2026 04 PM PDT 6.28 + Not Applicable
09/14/2026 05 PM PDT 6.52 + Not Applicable
09/14/2026 06 PM PDT 6.46 - Not Applicable
09/14/2026 07 PM PDT 5.83 - Not Applicable
09/14/2026 08 PM PDT 4.84 - Not Applicable
09/14/2026 09 PM PDT 3.98 - Not Applicable
09/14/2026 10 PM PDT 3.33 - Not Applicable
09/14/2026 11 PM PDT 2.88 - Not Applicable
09/15/2026 12 AM PDT 2.53 - Not Applicable
09/15/2026 01 AM PDT 2.45 - Not Applicable
09/15/2026 02 AM PDT 3.02 + Not Applicable
09/15/2026 03 AM PDT 4.10 + Not Applicable
09/15/2026 04 AM PDT 4.97 + Not Applicable
09/15/2026 05 AM PDT 5.38 + Not Applicable
09/15/2026 06 AM PDT 5.58 + Not Applicable
09/15/2026 07 AM PDT 5.51 - Not Applicable
09/15/2026 08 AM PDT 5.12 - Not Applicable
09/15/2026 09 AM PDT 4.45 - Not Applicable
09/15/2026 10 AM PDT 3.84 - Not Applicable
09/15/2026 11 AM PDT 3.47 - Not Applicable
09/15/2026 12 PM PDT 3.48 + Not Applicable
09/15/2026 01 PM PDT 4.10 + Not Applicable
09/15/2026 02 PM PDT 4.95 + Not Applicable
09/15/2026 03 PM PDT 5.67 + Not Applicable
09/15/2026 04 PM PDT 6.21 + Not Applicable
09/15/2026 05 PM PDT 6.54 + Not Applicable
09/15/2026 06 PM PDT 6.64 + Not Applicable
09/15/2026 07 PM PDT 6.35 - Not Applicable
09/15/2026 08 PM PDT 5.60 - Not Applicable
09/15/2026 09 PM PDT 4.64 - Not Applicable
09/15/2026 10 PM PDT 3.93 - Not Applicable
09/15/2026 11 PM PDT 3.38 - Not Applicable
09/16/2026 12 AM PDT 3.00 - Not Applicable
09/16/2026 01 AM PDT 2.65 - Not Applicable
09/16/2026 02 AM PDT 2.63 - Not Applicable
09/16/2026 03 AM PDT 3.27 + Not Applicable
09/16/2026 04 AM PDT 4.21 + Not Applicable
09/16/2026 05 AM PDT 4.92 + Not Applicable
09/16/2026 06 AM PDT 5.32 + Not Applicable
09/16/2026 07 AM PDT 5.51 + Not Applicable
09/16/2026 08 AM PDT 5.47 - Not Applicable
09/16/2026 09 AM PDT 5.17 - Not Applicable
09/16/2026 10 AM PDT 4.71 - Not Applicable
09/16/2026 11 AM PDT 4.30 - Not Applicable
09/16/2026 12 PM PDT 4.16 - Not Applicable
09/16/2026 01 PM PDT 4.29 + Not Applicable
09/16/2026 02 PM PDT 4.78 + Not Applicable
09/16/2026 03 PM PDT 5.48 + Not Applicable
09/16/2026 04 PM PDT 5.99 + Not Applicable
09/16/2026 05 PM PDT 6.35 + Not Applicable
09/16/2026 06 PM PDT 6.56 + Not Applicable
09/16/2026 07 PM PDT 6.45 - Not Applicable
09/16/2026 08 PM PDT 5.97 - Not Applicable
09/16/2026 09 PM PDT 5.09 - Not Applicable
09/16/2026 10 PM PDT 4.39 - Not Applicable
09/16/2026 11 PM PDT 3.77 - Not Applicable
09/17/2026 12 AM PDT 3.28 - Not Applicable
09/17/2026 01 AM PDT 2.87 - Not Applicable
09/17/2026 02 AM PDT 2.59 - Not Applicable
09/17/2026 03 AM PDT 2.62 + Not Applicable
09/17/2026 04 AM PDT 3.16 + Not Applicable
09/17/2026 05 AM PDT 3.97 + Not Applicable
09/17/2026 06 AM PDT 4.62 + Not Applicable
09/17/2026 07 AM PDT 5.01 + Not Applicable
09/17/2026 08 AM PDT 5.17 + Not Applicable
09/17/2026 09 AM PDT 5.21 + Not Applicable
09/17/2026 10 AM PDT 5.03 - Not Applicable
09/17/2026 11 AM PDT 4.70 - Not Applicable
09/17/2026 12 PM PDT 4.46 - Not Applicable
09/17/2026 01 PM PDT 4.40 - Not Applicable
09/17/2026 02 PM PDT 4.63 + Not Applicable
09/17/2026 03 PM PDT 5.03 + Not Applicable
09/17/2026 04 PM PDT 5.49 + Not Applicable
09/17/2026 05 PM PDT 5.90 + Not Applicable
09/17/2026 06 PM PDT 6.21 + Not Applicable
09/17/2026 07 PM PDT 6.31 + Not Applicable
09/17/2026 08 PM PDT 6.20 - Not Applicable
09/17/2026 09 PM PDT 5.70 - Not Applicable
09/17/2026 10 PM PDT 4.96 - Not Applicable
09/17/2026 11 PM PDT 4.25 - Not Applicable
09/18/2026 12 AM PDT 3.61 - Not Applicable
09/18/2026 01 AM PDT 3.03 - Not Applicable
09/18/2026 02 AM PDT 2.61 - Not Applicable
09/18/2026 03 AM PDT 2.34 - Not Applicable
09/18/2026 04 AM PDT 2.31 - Not Applicable
09/18/2026 05 AM PDT 2.79 + Not Applicable
09/18/2026 06 AM PDT 3.59 + Not Applicable
09/18/2026 07 AM PDT 4.10 + Not Applicable
09/18/2026 08 AM PDT 4.60 + Not Applicable
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Trend Forecast Status
# ------------------------------------------------------------------
09/18/2026 09 AM PDT 4.92 Not Applicable
09/18/2026 10 AM PDT 4.94 + Not Applicable
09/18/2026 11 AM PDT 4.65 - Not Applicable
09/18/2026 12 PM PDT 4.19 - Not Applicable
09/18/2026 01 PM PDT 3.88 - Not Applicable
09/18/2026 02 PM PDT 3.78 - Not Applicable
09/18/2026 03 PM PDT 3.92 + Not Applicable
09/18/2026 04 PM PDT 4.28 + Not Applicable
09/18/2026 05 PM PDT 4.76 + Not Applicable
09/18/2026 06 PM PDT 5.22 + Not Applicable
09/18/2026 07 PM PDT 5.55 + Not Applicable
09/18/2026 08 PM PDT 5.67 + Not Applicable
09/18/2026 09 PM PDT 5.55 - Not Applicable
09/18/2026 10 PM PDT 5.21 - Not Applicable
09/18/2026 11 PM PDT 4.71 - Not Applicable
09/19/2026 12 AM PDT 4.09 - Not Applicable
09/19/2026 01 AM PDT 3.44 - Not Applicable
09/19/2026 02 AM PDT 2.82 - Not Applicable
09/19/2026 03 AM PDT 2.33 - Not Applicable
09/19/2026 04 AM PDT 2.01 - Not Applicable
09/19/2026 05 AM PDT 1.94 - Not Applicable
09/19/2026 06 AM PDT 2.19 + Not Applicable
09/19/2026 07 AM PDT 2.73 + Not Applicable
09/19/2026 08 AM PDT 3.42 + Not Applicable
09/19/2026 09 AM PDT 4.11 + Not Applicable
09/19/2026 10 AM PDT 4.60 + Not Applicable
09/19/2026 11 AM PDT 4.78 + Not Applicable
09/19/2026 12 PM PDT 4.71 - Not Applicable
09/19/2026 01 PM PDT 4.45 - Not Applicable
09/19/2026 02 PM PDT 4.13 - Not Applicable
09/19/2026 03 PM PDT 3.89 - Not Applicable
09/19/2026 04 PM PDT 3.83 - Not Applicable
09/19/2026 05 PM PDT 4.03 + Not Applicable
09/19/2026 06 PM PDT 4.46 + Not Applicable
09/19/2026 07 PM PDT 4.94 + Not Applicable
09/19/2026 08 PM PDT 5.32 + Not Applicable
09/19/2026 09 PM PDT 5.46 + Not Applicable
09/19/2026 10 PM PDT 5.35 - Not Applicable
09/19/2026 11 PM PDT 5.02 - Not Applicable
09/20/2026 12 AM PDT 4.53 - Not Applicable
09/20/2026 01 AM PDT 3.91 - Not Applicable
09/20/2026 02 AM PDT 3.26 - Not Applicable
09/20/2026 03 AM PDT 2.65 - Not Applicable
09/20/2026 04 AM PDT 2.15 - Not Applicable
09/20/2026 05 AM PDT 1.83 - Not Applicable
09/20/2026 06 AM PDT 1.77 - Not Applicable
09/20/2026 07 AM PDT 2.05 + Not Applicable
09/20/2026 08 AM PDT 2.65 + Not Applicable
09/20/2026 09 AM PDT 3.41 + Not Applicable
09/20/2026 10 AM PDT 4.17 + Not Applicable
09/20/2026 11 AM PDT 4.71 + Not Applicable
09/20/2026 12 PM PDT 4.90 + Not Applicable
09/20/2026 01 PM PDT 4.79 - Not Applicable
09/20/2026 02 PM PDT 4.48 - Not Applicable
09/20/2026 03 PM PDT 4.10 - Not Applicable
09/20/2026 04 PM PDT 3.80 - Not Applicable
09/20/2026 05 PM PDT 3.72 - Not Applicable
09/20/2026 06 PM PDT 3.91 + Not Applicable
09/20/2026 07 PM PDT 4.35 + Not Applicable
09/20/2026 08 PM PDT 4.84 + Not Applicable
09/20/2026 09 PM PDT 5.23 + Not Applicable
09/20/2026 10 PM PDT 5.38 + Not Applicable
09/20/2026 11 PM PDT 5.27 - Not Applicable
09/21/2026 12 AM PDT 4.93 - Not Applicable
09/21/2026 01 AM PDT 4.43 - Not Applicable
09/21/2026 02 AM PDT 3.80 - Not Applicable
09/21/2026 03 AM PDT 3.13 - Not Applicable
09/21/2026 04 AM PDT 2.50 - Not Applicable
09/21/2026 05 AM PDT 2.00 - Not Applicable
09/21/2026 06 AM PDT 1.68 - Not Applicable
09/21/2026 07 AM PDT 1.62 - Not Applicable
09/21/2026 08 AM PDT 1.92 + Not Applicable
09/21/2026 09 AM PDT 2.58 + Not Applicable
09/21/2026 10 AM PDT 3.40 + Not Applicable
09/21/2026 11 AM PDT 4.22 + Not Applicable
09/21/2026 12 PM PDT 4.79 + Not Applicable
09/21/2026 01 PM PDT 5.00 + Not Applicable
09/21/2026 02 PM PDT 4.85 - Not Applicable
09/21/2026 03 PM PDT 4.45 - Not Applicable
09/21/2026 04 PM PDT 3.96 - Not Applicable
09/21/2026 05 PM PDT 3.59 - Not Applicable
09/21/2026 06 PM PDT 3.45 - Not Applicable
09/21/2026 07 PM PDT 3.59 + Not Applicable
09/21/2026 08 PM PDT 3.96 + Not Applicable
09/21/2026 09 PM PDT 4.46 + Not Applicable
09/21/2026 10 PM PDT 4.94 + Not Applicable
09/21/2026 11 PM PDT 5.29 + Not Applicable
09/22/2026 12 AM PDT 5.38 + Not Applicable
09/22/2026 01 AM PDT 5.14 - Not Applicable
09/22/2026 02 AM PDT 4.60 - Not Applicable
09/22/2026 03 AM PDT 3.82 - Not Applicable
09/22/2026 04 AM PDT 2.96 - Not Applicable
09/22/2026 05 AM PDT 2.21 - Not Applicable
09/22/2026 06 AM PDT 1.71 - Not Applicable
09/22/2026 07 AM PDT 1.54 - Not Applicable
09/22/2026 08 AM PDT 1.74 + Not Applicable
09/22/2026 09 AM PDT 2.26 + Not Applicable
09/22/2026 10 AM PDT 2.99 + Not Applicable
09/22/2026 11 AM PDT 3.78 + Not Applicable
09/22/2026 12 PM PDT 4.50 + Not Applicable
09/22/2026 01 PM PDT 4.97 + Not Applicable
09/22/2026 02 PM PDT 5.12 + Not Applicable
09/22/2026 03 PM PDT 4.89 - Not Applicable
09/22/2026 04 PM PDT 4.38 - Not Applicable
09/22/2026 05 PM PDT 3.77 - Not Applicable
09/22/2026 06 PM PDT 3.30 - Not Applicable
09/22/2026 07 PM PDT 3.14 - Not Applicable
09/22/2026 08 PM PDT 3.31 + Not Applicable
09/22/2026 09 PM PDT 3.74 + Not Applicable
09/22/2026 10 PM PDT 4.33 + Not Applicable
09/22/2026 11 PM PDT 4.89 + Not Applicable
09/23/2026 12 AM PDT 5.30 + Not Applicable
09/23/2026 01 AM PDT 5.43 + Not Applicable
09/23/2026 02 AM PDT 5.19 - Not Applicable
09/23/2026 03 AM PDT 4.64 - Not Applicable
09/23/2026 04 AM PDT 3.85 - Not Applicable
09/23/2026 05 AM PDT 2.98 - Not Applicable
#
# NOTE 1: Stages are rounded to the nearest hundredth (.01) of a foot.
# NOTE 2: Trends are determined using hourly change in unrounded stage.
# NOTE 3: Maximum Values are determined using unrounded stage.
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