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SACRAMENTO RIVER - COLUSA BRIDGE (CLUC1)
| Latitude: 39.21º N | Longitude: 122.00º W | Elevation: 70 Feet | | Forecast Type: Official Location |
| Location: Colusa County in California | Bulletin Group: Upper Sacramento | River Group: Upper Sacramento |
| Issuance Time: | Jul 31 2026 at 6:50 AM PDT | Next Issuance: | Aug 01 2026 at 9:00 AM PDT
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| Action/Monitor: 63.0 Feet | Minor Flood: 70.0 Feet | Moderate Flood: 72.0 Feet | Major Flood: 73.0 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Sacramento River - Colusa Bridge (CLUC1)
#
# File Generation Time: 07/31/2026 at 06:50 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 07/28/2026 at 06:00 AM PDT
# Maximum Observed Stage: 44.18 Feet
# Maximum Observed Flow: 8440 cfs
#
# Earliest Date & Time of Maximum Forecast: 08/05/2026 at 05:00 AM PDT
# Maximum Forecast Stage: 44.25 Feet
# Maximum Forecast Flow: 8523 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
07/26/2026 06 AM PDT 44.01 8241 Normal
07/26/2026 07 AM PDT 44.02 8252 + Normal
07/26/2026 08 AM PDT 44.01 8241 - Normal
07/26/2026 09 AM PDT 44.02 8252 + Normal
07/26/2026 10 AM PDT 44.03 8264 + Normal
07/26/2026 11 AM PDT 44.02 8252 - Normal
07/26/2026 12 PM PDT 44.03 8264 + Normal
07/26/2026 01 PM PDT 44.02 8252 - Normal
07/26/2026 02 PM PDT 44.03 8264 + Normal
07/26/2026 03 PM PDT 44.01 8241 - Normal
07/26/2026 04 PM PDT 44.01 8241 0 Normal
07/26/2026 05 PM PDT 44.02 8252 + Normal
07/26/2026 06 PM PDT 44.03 8264 + Normal
07/26/2026 07 PM PDT 44.05 8287 + Normal
07/26/2026 08 PM PDT 44.05 8287 0 Normal
07/26/2026 09 PM PDT 44.05 8287 0 Normal
07/26/2026 10 PM PDT 44.06 8299 + Normal
07/26/2026 11 PM PDT 44.06 8299 0 Normal
07/27/2026 12 AM PDT 44.06 8299 0 Normal
07/27/2026 01 AM PDT 44.07 8310 + Normal
07/27/2026 02 AM PDT 44.07 8310 0 Normal
07/27/2026 03 AM PDT 44.09 8334 + Normal
07/27/2026 04 AM PDT 44.09 8334 0 Normal
07/27/2026 05 AM PDT 44.08 8322 - Normal
07/27/2026 06 AM PDT 44.10 8346 + Normal
07/27/2026 07 AM PDT 44.10 8346 0 Normal
07/27/2026 08 AM PDT 44.10 8346 0 Normal
07/27/2026 09 AM PDT 44.10 8346 0 Normal
07/27/2026 10 AM PDT 44.10 8346 0 Normal
07/27/2026 11 AM PDT 44.09 8334 - Normal
07/27/2026 12 PM PDT 44.08 8322 - Normal
07/27/2026 01 PM PDT 44.09 8334 + Normal
07/27/2026 02 PM PDT 44.09 8334 0 Normal
07/27/2026 03 PM PDT 44.08 8322 - Normal
07/27/2026 04 PM PDT 44.08 8322 0 Normal
07/27/2026 05 PM PDT 44.10 8346 + Normal
07/27/2026 06 PM PDT 44.11 8357 + Normal
07/27/2026 07 PM PDT 44.12 8369 + Normal
07/27/2026 08 PM PDT 44.13 8381 + Normal
07/27/2026 09 PM PDT 44.15 8404 + Normal
07/27/2026 10 PM PDT 44.16 8416 + Normal
07/27/2026 11 PM PDT 44.17 8428 + Normal
07/28/2026 12 AM PDT 44.17 8428 0 Normal
07/28/2026 01 AM PDT 44.17 8428 0 Normal
07/28/2026 02 AM PDT 44.16 8416 - Normal
07/28/2026 03 AM PDT 44.17 8428 + Normal
07/28/2026 04 AM PDT 44.17 8428 0 Normal
07/28/2026 05 AM PDT 44.18 8440 + Normal
07/28/2026 06 AM PDT 44.18 8440 0 Normal
07/28/2026 07 AM PDT 44.15 8404 - Normal
07/28/2026 08 AM PDT 44.16 8416 + Normal
07/28/2026 09 AM PDT 44.14 8393 - Normal
07/28/2026 10 AM PDT 44.14 8393 0 Normal
07/28/2026 11 AM PDT 44.14 8393 0 Normal
07/28/2026 12 PM PDT 44.13 8381 - Normal
07/28/2026 01 PM PDT 44.13 8381 0 Normal
07/28/2026 02 PM PDT 44.11 8357 - Normal
07/28/2026 03 PM PDT 44.10 8346 - Normal
07/28/2026 04 PM PDT 44.08 8322 - Normal
07/28/2026 05 PM PDT 44.07 8310 - Normal
07/28/2026 06 PM PDT 44.06 8299 - Normal
07/28/2026 07 PM PDT 44.04 8275 - Normal
07/28/2026 08 PM PDT 44.05 8287 + Normal
07/28/2026 09 PM PDT 44.04 8275 - Normal
07/28/2026 10 PM PDT 44.04 8275 0 Normal
07/28/2026 11 PM PDT 44.03 8264 - Normal
07/29/2026 12 AM PDT 44.00 8229 - Normal
07/29/2026 01 AM PDT 43.99 8217 - Normal
07/29/2026 02 AM PDT 43.98 8204 - Normal
07/29/2026 03 AM PDT 43.97 8192 - Normal
07/29/2026 04 AM PDT 43.98 8204 + Normal
07/29/2026 05 AM PDT 43.97 8192 - Normal
07/29/2026 06 AM PDT 43.96 8179 - Normal
07/29/2026 07 AM PDT 43.97 8192 + Normal
07/29/2026 08 AM PDT 43.97 8192 0 Normal
07/29/2026 09 AM PDT 43.98 8204 + Normal
07/29/2026 10 AM PDT 43.97 8192 - Normal
07/29/2026 11 AM PDT 43.96 8179 - Normal
07/29/2026 12 PM PDT 43.99 8217 + Normal
07/29/2026 01 PM PDT 43.99 8217 0 Normal
07/29/2026 02 PM PDT 43.99 8217 0 Normal
07/29/2026 03 PM PDT 43.98 8204 - Normal
07/29/2026 04 PM PDT 43.96 8179 - Normal
07/29/2026 05 PM PDT 43.97 8192 + Normal
07/29/2026 06 PM PDT 43.97 8192 0 Normal
07/29/2026 07 PM PDT 43.98 8204 + Normal
07/29/2026 08 PM PDT 44.00 8229 + Normal
07/29/2026 09 PM PDT 43.98 8204 - Normal
07/29/2026 10 PM PDT 43.97 8192 - Normal
07/29/2026 11 PM PDT 43.99 8217 + Normal
07/30/2026 12 AM PDT 43.97 8192 - Normal
07/30/2026 01 AM PDT 43.98 8204 + Normal
07/30/2026 02 AM PDT 43.96 8179 - Normal
07/30/2026 03 AM PDT 43.95 8167 - Normal
07/30/2026 04 AM PDT 43.95 8167 0 Normal
07/30/2026 05 AM PDT 43.95 8167 0 Normal
07/30/2026 06 AM PDT 43.94 8154 - Normal
07/30/2026 07 AM PDT 43.94 8154 0 Normal
07/30/2026 08 AM PDT 43.93 8142 - Normal
07/30/2026 09 AM PDT 43.91 8117 - Normal
07/30/2026 10 AM PDT 43.90 8105 - Normal
07/30/2026 11 AM PDT 43.91 8117 + Normal
07/30/2026 12 PM PDT 43.91 8117 0 Normal
07/30/2026 01 PM PDT 43.89 8093 - Normal
07/30/2026 02 PM PDT 43.88 8080 - Normal
07/30/2026 03 PM PDT 43.88 8080 0 Normal
07/30/2026 04 PM PDT 43.87 8068 - Normal
07/30/2026 05 PM PDT 43.83 8019 - Normal
07/30/2026 06 PM PDT 43.88 8080 + Normal
07/30/2026 07 PM PDT 43.82 8007 - Normal
07/30/2026 08 PM PDT 43.88 8080 + Normal
07/30/2026 09 PM PDT 43.88 8080 0 Normal
07/30/2026 10 PM PDT 43.89 8093 + Normal
07/30/2026 11 PM PDT 43.89 8093 0 Normal
07/31/2026 12 AM PDT 43.89 8093 0 Normal
07/31/2026 01 AM PDT 43.88 8080 - Normal
07/31/2026 02 AM PDT 43.88 8080 0 Normal
07/31/2026 03 AM PDT 43.88 8080 0 Normal
07/31/2026 04 AM PDT 43.88 8080 0 Normal
07/31/2026 05 AM PDT 43.88 8080 0 Normal
07/31/2026 06 AM PDT 43.88 8080 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
07/31/2026 07 AM PDT 43.89 8093 Normal
07/31/2026 08 AM PDT 43.89 8093 0 Normal
07/31/2026 09 AM PDT 43.89 8093 0 Normal
07/31/2026 10 AM PDT 43.89 8093 0 Normal
07/31/2026 11 AM PDT 43.90 8105 + Normal
07/31/2026 12 PM PDT 43.90 8105 0 Normal
07/31/2026 01 PM PDT 43.90 8105 0 Normal
07/31/2026 02 PM PDT 43.90 8105 0 Normal
07/31/2026 03 PM PDT 43.91 8117 + Normal
07/31/2026 04 PM PDT 43.91 8117 0 Normal
07/31/2026 05 PM PDT 43.91 8117 0 Normal
07/31/2026 06 PM PDT 43.92 8130 + Normal
07/31/2026 07 PM PDT 43.92 8130 0 Normal
07/31/2026 08 PM PDT 43.93 8142 + Normal
07/31/2026 09 PM PDT 43.94 8154 + Normal
07/31/2026 10 PM PDT 43.95 8167 + Normal
07/31/2026 11 PM PDT 43.95 8167 0 Normal
08/01/2026 12 AM PDT 43.97 8192 + Normal
08/01/2026 01 AM PDT 43.98 8204 + Normal
08/01/2026 02 AM PDT 43.99 8217 + Normal
08/01/2026 03 AM PDT 44.00 8229 + Normal
08/01/2026 04 AM PDT 44.01 8241 + Normal
08/01/2026 05 AM PDT 44.02 8252 + Normal
08/01/2026 06 AM PDT 44.04 8275 + Normal
08/01/2026 07 AM PDT 44.05 8287 + Normal
08/01/2026 08 AM PDT 44.06 8299 + Normal
08/01/2026 09 AM PDT 44.07 8310 + Normal
08/01/2026 10 AM PDT 44.08 8322 + Normal
08/01/2026 11 AM PDT 44.09 8334 + Normal
08/01/2026 12 PM PDT 44.10 8346 + Normal
08/01/2026 01 PM PDT 44.11 8357 + Normal
08/01/2026 02 PM PDT 44.11 8357 0 Normal
08/01/2026 03 PM PDT 44.12 8369 + Normal
08/01/2026 04 PM PDT 44.13 8381 + Normal
08/01/2026 05 PM PDT 44.13 8381 0 Normal
08/01/2026 06 PM PDT 44.14 8393 + Normal
08/01/2026 07 PM PDT 44.15 8404 + Normal
08/01/2026 08 PM PDT 44.15 8404 0 Normal
08/01/2026 09 PM PDT 44.16 8416 + Normal
08/01/2026 10 PM PDT 44.16 8416 0 Normal
08/01/2026 11 PM PDT 44.16 8416 0 Normal
08/02/2026 12 AM PDT 44.17 8428 + Normal
08/02/2026 01 AM PDT 44.17 8428 0 Normal
08/02/2026 02 AM PDT 44.17 8428 0 Normal
08/02/2026 03 AM PDT 44.18 8440 + Normal
08/02/2026 04 AM PDT 44.18 8440 0 Normal
08/02/2026 05 AM PDT 44.18 8440 0 Normal
08/02/2026 06 AM PDT 44.19 8452 + Normal
08/02/2026 07 AM PDT 44.19 8452 0 Normal
08/02/2026 08 AM PDT 44.19 8452 0 Normal
08/02/2026 09 AM PDT 44.19 8452 0 Normal
08/02/2026 10 AM PDT 44.20 8464 + Normal
08/02/2026 11 AM PDT 44.20 8464 0 Normal
08/02/2026 12 PM PDT 44.20 8464 0 Normal
08/02/2026 01 PM PDT 44.20 8464 0 Normal
08/02/2026 02 PM PDT 44.20 8464 0 Normal
08/02/2026 03 PM PDT 44.20 8464 0 Normal
08/02/2026 04 PM PDT 44.21 8475 + Normal
08/02/2026 05 PM PDT 44.21 8475 0 Normal
08/02/2026 06 PM PDT 44.21 8475 0 Normal
08/02/2026 07 PM PDT 44.21 8475 0 Normal
08/02/2026 08 PM PDT 44.21 8475 0 Normal
08/02/2026 09 PM PDT 44.21 8475 0 Normal
08/02/2026 10 PM PDT 44.21 8475 0 Normal
08/02/2026 11 PM PDT 44.21 8475 0 Normal
08/03/2026 12 AM PDT 44.22 8487 + Normal
08/03/2026 01 AM PDT 44.22 8487 0 Normal
08/03/2026 02 AM PDT 44.22 8487 0 Normal
08/03/2026 03 AM PDT 44.22 8487 0 Normal
08/03/2026 04 AM PDT 44.22 8487 0 Normal
08/03/2026 05 AM PDT 44.22 8487 0 Normal
08/03/2026 06 AM PDT 44.22 8487 0 Normal
08/03/2026 07 AM PDT 44.22 8487 0 Normal
08/03/2026 08 AM PDT 44.22 8487 0 Normal
08/03/2026 09 AM PDT 44.22 8487 0 Normal
08/03/2026 10 AM PDT 44.22 8487 0 Normal
08/03/2026 11 AM PDT 44.22 8487 0 Normal
08/03/2026 12 PM PDT 44.23 8499 + Normal
08/03/2026 01 PM PDT 44.23 8499 0 Normal
08/03/2026 02 PM PDT 44.23 8499 0 Normal
08/03/2026 03 PM PDT 44.23 8499 0 Normal
08/03/2026 04 PM PDT 44.23 8499 0 Normal
08/03/2026 05 PM PDT 44.23 8499 0 Normal
08/03/2026 06 PM PDT 44.23 8499 0 Normal
08/03/2026 07 PM PDT 44.23 8499 0 Normal
08/03/2026 08 PM PDT 44.23 8499 0 Normal
08/03/2026 09 PM PDT 44.23 8499 0 Normal
08/03/2026 10 PM PDT 44.23 8499 0 Normal
08/03/2026 11 PM PDT 44.23 8499 0 Normal
08/04/2026 12 AM PDT 44.23 8499 0 Normal
08/04/2026 01 AM PDT 44.23 8499 0 Normal
08/04/2026 02 AM PDT 44.23 8499 0 Normal
08/04/2026 03 AM PDT 44.23 8499 0 Normal
08/04/2026 04 AM PDT 44.23 8499 0 Normal
08/04/2026 05 AM PDT 44.23 8499 0 Normal
08/04/2026 06 AM PDT 44.23 8499 0 Normal
08/04/2026 07 AM PDT 44.23 8499 0 Normal
08/04/2026 08 AM PDT 44.24 8511 + Normal
08/04/2026 09 AM PDT 44.24 8511 0 Normal
08/04/2026 10 AM PDT 44.24 8511 0 Normal
08/04/2026 11 AM PDT 44.24 8511 0 Normal
08/04/2026 12 PM PDT 44.24 8511 0 Normal
08/04/2026 01 PM PDT 44.24 8511 0 Normal
08/04/2026 02 PM PDT 44.24 8511 0 Normal
08/04/2026 03 PM PDT 44.24 8511 0 Normal
08/04/2026 04 PM PDT 44.24 8511 0 Normal
08/04/2026 05 PM PDT 44.24 8511 0 Normal
08/04/2026 06 PM PDT 44.24 8511 0 Normal
08/04/2026 07 PM PDT 44.24 8511 0 Normal
08/04/2026 08 PM PDT 44.24 8511 0 Normal
08/04/2026 09 PM PDT 44.24 8511 0 Normal
08/04/2026 10 PM PDT 44.24 8511 0 Normal
08/04/2026 11 PM PDT 44.24 8511 0 Normal
08/05/2026 12 AM PDT 44.24 8511 0 Normal
08/05/2026 01 AM PDT 44.24 8511 0 Normal
08/05/2026 02 AM PDT 44.24 8511 0 Normal
08/05/2026 03 AM PDT 44.24 8511 0 Normal
08/05/2026 04 AM PDT 44.24 8511 0 Normal
08/05/2026 05 AM PDT 44.25 8523 + 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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