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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: | Aug 28 2026 at 7:34 AM PDT | Next Issuance: | Aug 29 2026 at 9:00 AM PDT
| |
| 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: 08/28/2026 at 07:35 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 08/27/2026 at 04:00 AM PDT
# Maximum Observed Stage: 43.05 Feet
# Maximum Observed Flow: 7021 cfs
#
# Earliest Date & Time of Maximum Forecast: 08/28/2026 at 08:00 AM PDT
# Maximum Forecast Stage: 42.58 Feet
# Maximum Forecast Flow: 6354 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
08/23/2026 07 AM PDT 42.75 6592 Normal
08/23/2026 08 AM PDT 42.75 6592 0 Normal
08/23/2026 09 AM PDT 42.74 6578 - Normal
08/23/2026 10 AM PDT 42.75 6592 + Normal
08/23/2026 11 AM PDT 42.74 6578 - Normal
08/23/2026 12 PM PDT 42.73 6563 - Normal
08/23/2026 01 PM PDT 42.74 6578 + Normal
08/23/2026 02 PM PDT 42.75 6592 + Normal
08/23/2026 03 PM PDT 42.72 6549 - Normal
08/23/2026 04 PM PDT 42.74 6578 + Normal
08/23/2026 05 PM PDT 42.75 6592 + Normal
08/23/2026 06 PM PDT 42.74 6578 - Normal
08/23/2026 07 PM PDT 42.76 6606 + Normal
08/23/2026 08 PM PDT 42.76 6606 0 Normal
08/23/2026 09 PM PDT 42.76 6606 0 Normal
08/23/2026 10 PM PDT 42.76 6606 0 Normal
08/23/2026 11 PM PDT 42.76 6606 0 Normal
08/24/2026 12 AM PDT 42.77 6620 + Normal
08/24/2026 01 AM PDT 42.77 6620 0 Normal
08/24/2026 02 AM PDT 42.77 6620 0 Normal
08/24/2026 03 AM PDT 42.76 6606 - Normal
08/24/2026 04 AM PDT 42.77 6620 + Normal
08/24/2026 05 AM PDT 42.76 6606 - Normal
08/24/2026 06 AM PDT 42.77 6620 + Normal
08/24/2026 07 AM PDT 42.78 6635 + Normal
08/24/2026 08 AM PDT 42.78 6635 0 Normal
08/24/2026 09 AM PDT 42.77 6620 - Normal
08/24/2026 10 AM PDT 42.77 6620 0 Normal
08/24/2026 11 AM PDT 42.79 6649 + Normal
08/24/2026 12 PM PDT 42.79 6649 0 Normal
08/24/2026 01 PM PDT 42.80 6664 + Normal
08/24/2026 02 PM PDT 42.80 6664 0 Normal
08/24/2026 03 PM PDT 42.80 6664 0 Normal
08/24/2026 04 PM PDT 42.81 6678 + Normal
08/24/2026 05 PM PDT 42.82 6692 + Normal
08/24/2026 06 PM PDT 42.84 6721 + Normal
08/24/2026 07 PM PDT 42.84 6721 0 Normal
08/24/2026 08 PM PDT 42.85 6736 + Normal
08/24/2026 09 PM PDT 42.87 6765 + Normal
08/24/2026 10 PM PDT 42.88 6780 + Normal
08/24/2026 11 PM PDT 42.88 6780 0 Normal
08/25/2026 12 AM PDT 42.89 6794 + Normal
08/25/2026 01 AM PDT 42.89 6794 0 Normal
08/25/2026 02 AM PDT 42.90 6809 + Normal
08/25/2026 03 AM PDT 42.90 6809 0 Normal
08/25/2026 04 AM PDT 42.90 6809 0 Normal
08/25/2026 05 AM PDT 42.88 6780 - Normal
08/25/2026 06 AM PDT 42.90 6809 + Normal
08/25/2026 07 AM PDT 42.89 6794 - Normal
08/25/2026 08 AM PDT 42.89 6794 0 Normal
08/25/2026 09 AM PDT 42.89 6794 0 Normal
08/25/2026 10 AM PDT 42.88 6780 - Normal
08/25/2026 11 AM PDT 42.88 6780 0 Normal
08/25/2026 12 PM PDT 42.89 6794 + Normal
08/25/2026 01 PM PDT 42.89 6794 0 Normal
08/25/2026 02 PM PDT 42.89 6794 0 Normal
08/25/2026 03 PM PDT 42.89 6794 0 Normal
08/25/2026 04 PM PDT 42.90 6809 + Normal
08/25/2026 05 PM PDT 42.92 6838 + Normal
08/25/2026 06 PM PDT 42.91 6824 - Normal
08/25/2026 07 PM PDT 42.93 6853 + Normal
08/25/2026 08 PM PDT 42.96 6897 + Normal
08/25/2026 09 PM PDT 42.97 6912 + Normal
08/25/2026 10 PM PDT 42.99 6942 + Normal
08/25/2026 11 PM PDT 42.98 6927 - Normal
08/26/2026 12 AM PDT 42.99 6942 + Normal
08/26/2026 01 AM PDT 43.00 6957 + Normal
08/26/2026 02 AM PDT 43.00 6957 0 Normal
08/26/2026 03 AM PDT 43.01 6970 + Normal
08/26/2026 04 AM PDT 43.01 6970 0 Normal
08/26/2026 05 AM PDT 43.01 6970 0 Normal
08/26/2026 06 AM PDT 43.00 6957 - Normal
08/26/2026 07 AM PDT 43.01 6970 + Normal
08/26/2026 08 AM PDT 43.00 6957 - Normal
08/26/2026 09 AM PDT 42.99 6942 - Normal
08/26/2026 10 AM PDT 43.00 6957 + Normal
08/26/2026 11 AM PDT 42.99 6942 - Normal
08/26/2026 12 PM PDT 42.99 6942 0 Normal
08/26/2026 01 PM PDT 43.00 6957 + Normal
08/26/2026 02 PM PDT 42.99 6942 - Normal
08/26/2026 03 PM PDT 42.99 6942 0 Normal
08/26/2026 04 PM PDT 43.00 6957 + Normal
08/26/2026 05 PM PDT 43.01 6970 + Normal
08/26/2026 06 PM PDT 43.01 6970 0 Normal
08/26/2026 07 PM PDT 43.02 6983 + Normal
08/26/2026 08 PM PDT 43.03 6996 + Normal
08/26/2026 09 PM PDT 43.03 6996 0 Normal
08/26/2026 10 PM PDT 43.04 7008 + Normal
08/26/2026 11 PM PDT 43.05 7021 + Normal
08/27/2026 12 AM PDT 43.04 7008 - Normal
08/27/2026 01 AM PDT 43.05 7021 + Normal
08/27/2026 02 AM PDT 43.05 7021 0 Normal
08/27/2026 03 AM PDT 43.05 7021 0 Normal
08/27/2026 04 AM PDT 43.05 7021 0 Normal
08/27/2026 05 AM PDT 43.04 7008 - Normal
08/27/2026 06 AM PDT 43.04 7008 0 Normal
08/27/2026 07 AM PDT 43.04 7008 0 Normal
08/27/2026 08 AM PDT 43.02 6983 - Normal
08/27/2026 09 AM PDT 43.01 6970 - Normal
08/27/2026 10 AM PDT 42.99 6942 - Normal
08/27/2026 11 AM PDT 42.98 6927 - Normal
08/27/2026 12 PM PDT 42.95 6883 - Normal
08/27/2026 01 PM PDT 42.91 6824 - Normal
08/27/2026 02 PM PDT 42.88 6780 - Normal
08/27/2026 03 PM PDT 42.86 6750 - Normal
08/27/2026 04 PM PDT 42.83 6707 - Normal
08/27/2026 05 PM PDT 42.80 6664 - Normal
08/27/2026 06 PM PDT 42.76 6606 - Normal
08/27/2026 07 PM PDT 42.73 6563 - Normal
08/27/2026 08 PM PDT 42.72 6549 - Normal
08/27/2026 09 PM PDT 42.69 6507 - Normal
08/27/2026 10 PM PDT 42.67 6479 - Normal
08/27/2026 11 PM PDT 42.66 6465 - Normal
08/28/2026 12 AM PDT 42.65 6451 - Normal
08/28/2026 01 AM PDT 42.65 6451 0 Normal
08/28/2026 02 AM PDT 42.64 6437 - Normal
08/28/2026 03 AM PDT 42.64 6437 0 Normal
08/28/2026 04 AM PDT 42.61 6395 - Normal
08/28/2026 05 AM PDT 42.60 6381 - Normal
08/28/2026 06 AM PDT 42.59 6367 - Normal
08/28/2026 07 AM PDT 42.59 6367 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
08/28/2026 08 AM PDT 42.58 6354 Normal
08/28/2026 09 AM PDT 42.57 6340 - Normal
08/28/2026 10 AM PDT 42.57 6340 0 Normal
08/28/2026 11 AM PDT 42.56 6326 - Normal
08/28/2026 12 PM PDT 42.56 6326 0 Normal
08/28/2026 01 PM PDT 42.56 6326 0 Normal
08/28/2026 02 PM PDT 42.55 6312 - Normal
08/28/2026 03 PM PDT 42.55 6312 0 Normal
08/28/2026 04 PM PDT 42.55 6312 0 Normal
08/28/2026 05 PM PDT 42.55 6312 0 Normal
08/28/2026 06 PM PDT 42.55 6312 0 Normal
08/28/2026 07 PM PDT 42.54 6299 - Normal
08/28/2026 08 PM PDT 42.54 6299 0 Normal
08/28/2026 09 PM PDT 42.54 6299 0 Normal
08/28/2026 10 PM PDT 42.53 6285 - Normal
08/28/2026 11 PM PDT 42.53 6285 0 Normal
08/29/2026 12 AM PDT 42.53 6285 0 Normal
08/29/2026 01 AM PDT 42.52 6271 - Normal
08/29/2026 02 AM PDT 42.52 6271 0 Normal
08/29/2026 03 AM PDT 42.51 6258 - Normal
08/29/2026 04 AM PDT 42.51 6258 0 Normal
08/29/2026 05 AM PDT 42.50 6244 - Normal
08/29/2026 06 AM PDT 42.49 6229 - Normal
08/29/2026 07 AM PDT 42.49 6229 0 Normal
08/29/2026 08 AM PDT 42.48 6214 - Normal
08/29/2026 09 AM PDT 42.47 6200 - Normal
08/29/2026 10 AM PDT 42.45 6170 - Normal
08/29/2026 11 AM PDT 42.44 6156 - Normal
08/29/2026 12 PM PDT 42.42 6126 - Normal
08/29/2026 01 PM PDT 42.41 6112 - Normal
08/29/2026 02 PM PDT 42.39 6083 - Normal
08/29/2026 03 PM PDT 42.38 6068 - Normal
08/29/2026 04 PM PDT 42.36 6039 - Normal
08/29/2026 05 PM PDT 42.35 6025 - Normal
08/29/2026 06 PM PDT 42.33 5996 - Normal
08/29/2026 07 PM PDT 42.32 5982 - Normal
08/29/2026 08 PM PDT 42.30 5954 - Normal
08/29/2026 09 PM PDT 42.29 5940 - Normal
08/29/2026 10 PM PDT 42.28 5925 - Normal
08/29/2026 11 PM PDT 42.27 5911 - Normal
08/30/2026 12 AM PDT 42.26 5897 - Normal
08/30/2026 01 AM PDT 42.25 5883 - Normal
08/30/2026 02 AM PDT 42.24 5869 - Normal
08/30/2026 03 AM PDT 42.23 5855 - Normal
08/30/2026 04 AM PDT 42.22 5841 - Normal
08/30/2026 05 AM PDT 42.22 5841 0 Normal
08/30/2026 06 AM PDT 42.21 5827 - Normal
08/30/2026 07 AM PDT 42.20 5813 - Normal
08/30/2026 08 AM PDT 42.20 5813 0 Normal
08/30/2026 09 AM PDT 42.19 5799 - Normal
08/30/2026 10 AM PDT 42.19 5799 0 Normal
08/30/2026 11 AM PDT 42.19 5799 0 Normal
08/30/2026 12 PM PDT 42.18 5785 - Normal
08/30/2026 01 PM PDT 42.18 5785 0 Normal
08/30/2026 02 PM PDT 42.17 5772 - Normal
08/30/2026 03 PM PDT 42.17 5772 0 Normal
08/30/2026 04 PM PDT 42.17 5772 0 Normal
08/30/2026 05 PM PDT 42.16 5758 - Normal
08/30/2026 06 PM PDT 42.16 5758 0 Normal
08/30/2026 07 PM PDT 42.16 5758 0 Normal
08/30/2026 08 PM PDT 42.16 5758 0 Normal
08/30/2026 09 PM PDT 42.16 5758 0 Normal
08/30/2026 10 PM PDT 42.16 5758 0 Normal
08/30/2026 11 PM PDT 42.15 5744 - Normal
08/31/2026 12 AM PDT 42.15 5744 0 Normal
08/31/2026 01 AM PDT 42.15 5744 0 Normal
08/31/2026 02 AM PDT 42.15 5744 0 Normal
08/31/2026 03 AM PDT 42.15 5744 0 Normal
08/31/2026 04 AM PDT 42.15 5744 0 Normal
08/31/2026 05 AM PDT 42.15 5744 0 Normal
08/31/2026 06 AM PDT 42.14 5730 - Normal
08/31/2026 07 AM PDT 42.14 5730 0 Normal
08/31/2026 08 AM PDT 42.13 5717 - Normal
08/31/2026 09 AM PDT 42.12 5703 - Normal
08/31/2026 10 AM PDT 42.11 5689 - Normal
08/31/2026 11 AM PDT 42.10 5676 - Normal
08/31/2026 12 PM PDT 42.09 5662 - Normal
08/31/2026 01 PM PDT 42.07 5635 - Normal
08/31/2026 02 PM PDT 42.06 5621 - Normal
08/31/2026 03 PM PDT 42.05 5608 - Normal
08/31/2026 04 PM PDT 42.03 5581 - Normal
08/31/2026 05 PM PDT 42.02 5568 - Normal
08/31/2026 06 PM PDT 42.01 5554 - Normal
08/31/2026 07 PM PDT 41.99 5531 - Normal
08/31/2026 08 PM PDT 41.97 5511 - Normal
08/31/2026 09 PM PDT 41.96 5501 - Normal
08/31/2026 10 PM PDT 41.94 5482 - Normal
08/31/2026 11 PM PDT 41.93 5472 - Normal
09/01/2026 12 AM PDT 41.91 5452 - Normal
09/01/2026 01 AM PDT 41.90 5442 - Normal
09/01/2026 02 AM PDT 41.89 5433 - Normal
09/01/2026 03 AM PDT 41.88 5423 - Normal
09/01/2026 04 AM PDT 41.87 5413 - Normal
09/01/2026 05 AM PDT 41.86 5403 - Normal
09/01/2026 06 AM PDT 41.85 5394 - Normal
09/01/2026 07 AM PDT 41.84 5384 - Normal
09/01/2026 08 AM PDT 41.83 5374 - Normal
09/01/2026 09 AM PDT 41.81 5355 - Normal
09/01/2026 10 AM PDT 41.79 5336 - Normal
09/01/2026 11 AM PDT 41.77 5316 - Normal
09/01/2026 12 PM PDT 41.75 5297 - Normal
09/01/2026 01 PM PDT 41.73 5278 - Normal
09/01/2026 02 PM PDT 41.71 5259 - Normal
09/01/2026 03 PM PDT 41.68 5231 - Normal
09/01/2026 04 PM PDT 41.66 5212 - Normal
09/01/2026 05 PM PDT 41.64 5193 - Normal
09/01/2026 06 PM PDT 41.61 5165 - Normal
09/01/2026 07 PM PDT 41.59 5146 - Normal
09/01/2026 08 PM PDT 41.57 5128 - Normal
09/01/2026 09 PM PDT 41.55 5109 - Normal
09/01/2026 10 PM PDT 41.53 5091 - Normal
09/01/2026 11 PM PDT 41.51 5072 - Normal
09/02/2026 12 AM PDT 41.49 5053 - Normal
09/02/2026 01 AM PDT 41.48 5044 - Normal
09/02/2026 02 AM PDT 41.47 5034 - Normal
09/02/2026 03 AM PDT 41.45 5014 - Normal
09/02/2026 04 AM PDT 41.44 5005 - Normal
09/02/2026 05 AM PDT 41.43 4995 - 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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