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ALAMEDA CREEK - NILES (NILC1)
| Latitude: 37.59º N | Longitude: 121.96º W | Elevation: 86 Feet | | Forecast Type: Unofficial Location |
| Location: Alameda County in California | Bulletin Group: Central Coast | River Group: South Bay |
| Issuance Time: | May 28 2026 at 8:26 AM PDT | Next Issuance: | May 29 2026 at 9:00 AM PDT
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| Action/Monitor: N/A | Minor Flood: 9.0 Feet | Moderate Flood: 10.5 Feet | Major Flood: N/A |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Alameda Creek - Niles (NILC1)
#
# File Generation Time: 05/28/2026 at 08:27 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 05/28/2026 at 08:00 AM PDT
# Maximum Observed Stage: 2.87 Feet
# Maximum Observed Flow: 23 cfs
#
# Earliest Date & Time of Maximum Forecast: 05/28/2026 at 06:00 PM PDT
# Maximum Forecast Stage: 3.85 Feet
# Maximum Forecast Flow: 248 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
05/23/2026 08 AM PDT 2.68 12 Normal
05/23/2026 09 AM PDT 2.69 12 + Normal
05/23/2026 10 AM PDT 2.69 12 0 Normal
05/23/2026 11 AM PDT 2.69 12 0 Normal
05/23/2026 12 PM PDT 2.69 12 0 Normal
05/23/2026 01 PM PDT 2.69 12 0 Normal
05/23/2026 02 PM PDT 2.69 12 0 Normal
05/23/2026 03 PM PDT 2.68 12 - Normal
05/23/2026 04 PM PDT 2.68 12 0 Normal
05/23/2026 05 PM PDT 2.67 11 - Normal
05/23/2026 06 PM PDT 2.67 11 0 Normal
05/23/2026 07 PM PDT 2.67 11 0 Normal
05/23/2026 08 PM PDT 2.67 11 0 Normal
05/23/2026 09 PM PDT 2.67 11 0 Normal
05/23/2026 10 PM PDT 2.66 11 - Normal
05/23/2026 11 PM PDT 2.66 11 0 Normal
05/24/2026 12 AM PDT 2.66 11 0 Normal
05/24/2026 01 AM PDT 2.67 11 + Normal
05/24/2026 02 AM PDT 2.67 11 0 Normal
05/24/2026 03 AM PDT 2.67 11 0 Normal
05/24/2026 04 AM PDT 2.67 11 0 Normal
05/24/2026 05 AM PDT 2.67 11 0 Normal
05/24/2026 06 AM PDT 2.67 11 0 Normal
05/24/2026 07 AM PDT 2.66 11 - Normal
05/24/2026 08 AM PDT 2.66 11 0 Normal
05/24/2026 09 AM PDT 2.67 11 + Normal
05/24/2026 10 AM PDT 2.67 11 0 Normal
05/24/2026 11 AM PDT 2.67 11 0 Normal
05/24/2026 12 PM PDT 2.67 11 0 Normal
05/24/2026 01 PM PDT 2.67 11 0 Normal
05/24/2026 02 PM PDT 2.68 12 + Normal
05/24/2026 03 PM PDT 2.67 11 - Normal
05/24/2026 04 PM PDT 2.67 11 0 Normal
05/24/2026 05 PM PDT 2.66 11 - Normal
05/24/2026 06 PM PDT 2.66 11 0 Normal
05/24/2026 07 PM PDT 2.65 10 - Normal
05/24/2026 08 PM PDT 2.65 10 0 Normal
05/24/2026 09 PM PDT 2.66 11 + Normal
05/24/2026 10 PM PDT 2.65 10 - Normal
05/24/2026 11 PM PDT 2.65 10 0 Normal
05/25/2026 12 AM PDT 2.65 10 0 Normal
05/25/2026 01 AM PDT 2.65 10 0 Normal
05/25/2026 02 AM PDT 2.66 11 + Normal
05/25/2026 03 AM PDT 2.66 11 0 Normal
05/25/2026 04 AM PDT 2.66 11 0 Normal
05/25/2026 05 AM PDT 2.66 11 0 Normal
05/25/2026 06 AM PDT 2.66 11 0 Normal
05/25/2026 07 AM PDT 2.66 11 0 Normal
05/25/2026 08 AM PDT 2.67 11 + Normal
05/25/2026 09 AM PDT 2.67 11 0 Normal
05/25/2026 10 AM PDT 2.67 11 0 Normal
05/25/2026 11 AM PDT 2.67 11 0 Normal
05/25/2026 12 PM PDT 2.68 12 + Normal
05/25/2026 01 PM PDT 2.68 12 0 Normal
05/25/2026 02 PM PDT 2.68 12 0 Normal
05/25/2026 03 PM PDT 2.68 12 0 Normal
05/25/2026 04 PM PDT 2.68 12 0 Normal
05/25/2026 05 PM PDT 2.67 11 - Normal
05/25/2026 06 PM PDT 2.67 11 0 Normal
05/25/2026 07 PM PDT 2.66 11 - Normal
05/25/2026 08 PM PDT 2.65 10 - Normal
05/25/2026 09 PM PDT 2.65 10 0 Normal
05/25/2026 10 PM PDT 2.65 10 0 Normal
05/25/2026 11 PM PDT 2.65 10 0 Normal
05/26/2026 12 AM PDT 2.66 11 + Normal
05/26/2026 01 AM PDT 2.66 11 0 Normal
05/26/2026 02 AM PDT 2.66 11 0 Normal
05/26/2026 03 AM PDT 2.67 11 + Normal
05/26/2026 04 AM PDT 2.67 11 0 Normal
05/26/2026 05 AM PDT 2.67 11 0 Normal
05/26/2026 06 AM PDT 2.68 12 + Normal
05/26/2026 07 AM PDT 2.68 12 0 Normal
05/26/2026 08 AM PDT 2.68 12 0 Normal
05/26/2026 09 AM PDT 2.67 11 - Normal
05/26/2026 10 AM PDT 2.67 11 0 Normal
05/26/2026 11 AM PDT 2.67 11 0 Normal
05/26/2026 12 PM PDT 2.68 12 + Normal
05/26/2026 01 PM PDT 2.68 12 0 Normal
05/26/2026 02 PM PDT 2.67 11 - Normal
05/26/2026 03 PM PDT 2.71 13 + Normal
05/26/2026 04 PM PDT 2.79 18 + Normal
05/26/2026 05 PM PDT 2.82 19 + Normal
05/26/2026 06 PM PDT 2.82 19 0 Normal
05/26/2026 07 PM PDT 2.81 19 - Normal
05/26/2026 08 PM PDT 2.78 17 - Normal
05/26/2026 09 PM PDT 2.75 15 - Normal
05/26/2026 10 PM PDT 2.73 14 - Normal
05/26/2026 11 PM PDT 2.71 13 - Normal
05/27/2026 12 AM PDT 2.70 13 - Normal
05/27/2026 01 AM PDT 2.69 12 - Normal
05/27/2026 02 AM PDT 2.69 12 0 Normal
05/27/2026 03 AM PDT 2.69 12 0 Normal
05/27/2026 04 AM PDT 2.72 14 + Normal
05/27/2026 05 AM PDT 2.77 16 + Normal
05/27/2026 06 AM PDT 2.79 18 + Normal
05/27/2026 07 AM PDT 2.80 18 + Normal
05/27/2026 08 AM PDT 2.80 18 0 Normal
05/27/2026 09 AM PDT 2.81 19 + Normal
05/27/2026 10 AM PDT 2.81 19 0 Normal
05/27/2026 11 AM PDT 2.81 19 0 Normal
05/27/2026 12 PM PDT 2.81 19 0 Normal
05/27/2026 01 PM PDT 2.82 19 + Normal
05/27/2026 02 PM PDT 2.83 20 + Normal
05/27/2026 03 PM PDT 2.84 21 + Normal
05/27/2026 04 PM PDT 2.84 21 0 Normal
05/27/2026 05 PM PDT 2.84 21 0 Normal
05/27/2026 06 PM PDT 2.84 21 0 Normal
05/27/2026 07 PM PDT 2.82 19 - Normal
05/27/2026 08 PM PDT 2.79 18 - Normal
05/27/2026 09 PM PDT 2.77 16 - Normal
05/27/2026 10 PM PDT 2.74 15 - Normal
05/27/2026 11 PM PDT 2.73 14 - Normal
05/28/2026 12 AM PDT 2.72 14 - Normal
05/28/2026 01 AM PDT 2.72 14 0 Normal
05/28/2026 02 AM PDT 2.72 14 0 Normal
05/28/2026 03 AM PDT 2.72 14 0 Normal
05/28/2026 04 AM PDT 2.76 16 + Normal
05/28/2026 05 AM PDT 2.80 18 + Normal
05/28/2026 06 AM PDT 2.82 19 + Normal
05/28/2026 07 AM PDT 2.85 21 + Normal
05/28/2026 08 AM PDT 2.87 23 + Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
05/28/2026 09 AM PDT 2.88 24 Normal
05/28/2026 10 AM PDT 2.92 27 + Normal
05/28/2026 11 AM PDT 3.02 36 + Normal
05/28/2026 12 PM PDT 3.17 55 + Normal
05/28/2026 01 PM PDT 3.37 92 + Normal
05/28/2026 02 PM PDT 3.54 135 + Normal
05/28/2026 03 PM PDT 3.69 184 + Normal
05/28/2026 04 PM PDT 3.79 222 + Normal
05/28/2026 05 PM PDT 3.84 243 + Normal
05/28/2026 06 PM PDT 3.85 248 + Normal
05/28/2026 07 PM PDT 3.82 235 - Normal
05/28/2026 08 PM PDT 3.78 218 - Normal
05/28/2026 09 PM PDT 3.74 203 - Normal
05/28/2026 10 PM PDT 3.68 181 - Normal
05/28/2026 11 PM PDT 3.63 163 - Normal
05/29/2026 12 AM PDT 3.58 147 - Normal
05/29/2026 01 AM PDT 3.54 135 - Normal
05/29/2026 02 AM PDT 3.50 124 - Normal
05/29/2026 03 AM PDT 3.46 113 - Normal
05/29/2026 04 AM PDT 3.43 105 - Normal
05/29/2026 05 AM PDT 3.38 94 - Normal
05/29/2026 06 AM PDT 3.34 85 - Normal
05/29/2026 07 AM PDT 3.29 76 - Normal
05/29/2026 08 AM PDT 3.24 66 - Normal
05/29/2026 09 AM PDT 3.19 58 - Normal
05/29/2026 10 AM PDT 3.15 52 - Normal
05/29/2026 11 AM PDT 3.11 47 - Normal
05/29/2026 12 PM PDT 3.07 42 - Normal
05/29/2026 01 PM PDT 3.03 37 - Normal
05/29/2026 02 PM PDT 2.98 32 - Normal
05/29/2026 03 PM PDT 2.94 28 - Normal
05/29/2026 04 PM PDT 2.90 25 - Normal
05/29/2026 05 PM PDT 2.86 22 - Normal
05/29/2026 06 PM PDT 2.82 19 - Normal
05/29/2026 07 PM PDT 2.79 18 - Normal
05/29/2026 08 PM PDT 2.76 16 - Normal
05/29/2026 09 PM PDT 2.73 14 - Normal
05/29/2026 10 PM PDT 2.71 13 - Normal
05/29/2026 11 PM PDT 2.69 12 - Normal
05/30/2026 12 AM PDT 2.68 12 - Normal
05/30/2026 01 AM PDT 2.67 11 - Normal
05/30/2026 02 AM PDT 2.66 11 - Normal
05/30/2026 03 AM PDT 2.65 10 - Normal
05/30/2026 04 AM PDT 2.65 10 0 Normal
05/30/2026 05 AM PDT 2.64 10 - Normal
05/30/2026 06 AM PDT 2.64 10 0 Normal
05/30/2026 07 AM PDT 2.63 10 - Normal
05/30/2026 08 AM PDT 2.63 10 0 Normal
05/30/2026 09 AM PDT 2.63 10 0 Normal
05/30/2026 10 AM PDT 2.63 10 0 Normal
05/30/2026 11 AM PDT 2.63 10 0 Normal
05/30/2026 12 PM PDT 2.63 10 0 Normal
05/30/2026 01 PM PDT 2.63 10 0 Normal
05/30/2026 02 PM PDT 2.63 10 0 Normal
05/30/2026 03 PM PDT 2.63 10 0 Normal
05/30/2026 04 PM PDT 2.63 10 0 Normal
05/30/2026 05 PM PDT 2.63 10 0 Normal
05/30/2026 06 PM PDT 2.63 10 0 Normal
05/30/2026 07 PM PDT 2.63 10 0 Normal
05/30/2026 08 PM PDT 2.63 10 0 Normal
05/30/2026 09 PM PDT 2.63 10 0 Normal
05/30/2026 10 PM PDT 2.63 10 0 Normal
05/30/2026 11 PM PDT 2.63 10 0 Normal
05/31/2026 12 AM PDT 2.62 9 - Normal
05/31/2026 01 AM PDT 2.62 9 0 Normal
05/31/2026 02 AM PDT 2.62 9 0 Normal
05/31/2026 03 AM PDT 2.62 9 0 Normal
05/31/2026 04 AM PDT 2.62 9 0 Normal
05/31/2026 05 AM PDT 2.62 9 0 Normal
05/31/2026 06 AM PDT 2.62 9 0 Normal
05/31/2026 07 AM PDT 2.62 9 0 Normal
05/31/2026 08 AM PDT 2.62 9 0 Normal
05/31/2026 09 AM PDT 2.62 9 0 Normal
05/31/2026 10 AM PDT 2.62 9 0 Normal
05/31/2026 11 AM PDT 2.62 9 0 Normal
05/31/2026 12 PM PDT 2.62 9 0 Normal
05/31/2026 01 PM PDT 2.62 9 0 Normal
05/31/2026 02 PM PDT 2.62 9 0 Normal
05/31/2026 03 PM PDT 2.62 9 0 Normal
05/31/2026 04 PM PDT 2.62 9 0 Normal
05/31/2026 05 PM PDT 2.62 9 0 Normal
05/31/2026 06 PM PDT 2.62 9 0 Normal
05/31/2026 07 PM PDT 2.62 9 0 Normal
05/31/2026 08 PM PDT 2.62 9 0 Normal
05/31/2026 09 PM PDT 2.62 9 0 Normal
05/31/2026 10 PM PDT 2.62 9 0 Normal
05/31/2026 11 PM PDT 2.62 9 0 Normal
06/01/2026 12 AM PDT 2.62 9 0 Normal
06/01/2026 01 AM PDT 2.62 9 0 Normal
06/01/2026 02 AM PDT 2.62 9 0 Normal
06/01/2026 03 AM PDT 2.62 9 0 Normal
06/01/2026 04 AM PDT 2.62 9 0 Normal
06/01/2026 05 AM PDT 2.62 9 0 Normal
06/01/2026 06 AM PDT 2.62 9 0 Normal
06/01/2026 07 AM PDT 2.62 9 0 Normal
06/01/2026 08 AM PDT 2.62 9 0 Normal
06/01/2026 09 AM PDT 2.62 9 0 Normal
06/01/2026 10 AM PDT 2.62 9 0 Normal
06/01/2026 11 AM PDT 2.62 9 0 Normal
06/01/2026 12 PM PDT 2.62 9 0 Normal
06/01/2026 01 PM PDT 2.62 9 0 Normal
06/01/2026 02 PM PDT 2.62 9 0 Normal
06/01/2026 03 PM PDT 2.62 9 0 Normal
06/01/2026 04 PM PDT 2.62 9 0 Normal
06/01/2026 05 PM PDT 2.62 9 0 Normal
06/01/2026 06 PM PDT 2.62 9 0 Normal
06/01/2026 07 PM PDT 2.62 9 0 Normal
06/01/2026 08 PM PDT 2.62 9 0 Normal
06/01/2026 09 PM PDT 2.62 9 0 Normal
06/01/2026 10 PM PDT 2.62 9 0 Normal
06/01/2026 11 PM PDT 2.62 9 0 Normal
06/02/2026 12 AM PDT 2.62 9 0 Normal
06/02/2026 01 AM PDT 2.62 9 0 Normal
06/02/2026 02 AM PDT 2.62 9 0 Normal
06/02/2026 03 AM PDT 2.62 9 0 Normal
06/02/2026 04 AM PDT 2.62 9 0 Normal
06/02/2026 05 AM PDT 2.62 9 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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