National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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ALAMEDA CREEK - NILES (NILC1)
Latitude: 37.59º NLongitude: 121.96º WElevation: 86 Feet
Location: Alameda County in CaliforniaBulletin Group: Central CoastRiver Group: South Bay
Issuance Time: Jan 21 2026 at 7:13 AM PSTNext Issuance: Jan 21 2026 at 3:00 PM PST
Action/Monitor: N/A Minor Flood: 9.0 FeetModerate Flood: 10.5 FeetMajor Flood: N/A


# Tabular Observed and Forecast Hydrograph Information
#
# Location: Alameda Creek - Niles (NILC1)
#
# File Generation Time:  01/21/2026 at 07:14 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  01/16/2026 at 09:00 PM PST
# Maximum Observed Stage:                       3.17 Feet
# Maximum Observed Flow:                        55 cfs
#
# Earliest Date & Time of Maximum Forecast:     01/21/2026 at 08:00 AM PST
# Maximum Forecast Stage:                       3.10 Feet
# Maximum Forecast Flow:                        46 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  01/16/2026 07 AM PST            3.11             47                        Normal
  01/16/2026 08 AM PST            3.11             47         0              Normal
  01/16/2026 09 AM PST            3.10             46         -              Normal
  01/16/2026 10 AM PST            3.11             47         +              Normal
  01/16/2026 11 AM PST            3.11             47         0              Normal
  01/16/2026 12 PM PST            3.12             48         +              Normal
  01/16/2026 01 PM PST            3.14             51         +              Normal
  01/16/2026 02 PM PST            3.14             51         0              Normal
  01/16/2026 03 PM PST            3.14             51         0              Normal
  01/16/2026 04 PM PST            3.15             52         +              Normal
  01/16/2026 05 PM PST            3.14             51         -              Normal
  01/16/2026 06 PM PST            3.14             51         0              Normal
  01/16/2026 07 PM PST            3.13             50         -              Normal
  01/16/2026 08 PM PST            3.15             52         +              Normal
  01/16/2026 09 PM PST            3.17             55         +              Normal
  01/16/2026 10 PM PST            3.15             52         -              Normal
  01/16/2026 11 PM PST            3.15             52         0              Normal
  01/17/2026 12 AM PST            3.16             54         +              Normal
  01/17/2026 01 AM PST            3.15             52         -              Normal
  01/17/2026 02 AM PST            3.15             52         0              Normal
  01/17/2026 03 AM PST            3.15             52         0              Normal
  01/17/2026 04 AM PST            3.15             52         0              Normal
  01/17/2026 05 AM PST            3.16             54         +              Normal
  01/17/2026 06 AM PST            3.14             51         -              Normal
  01/17/2026 07 AM PST            3.14             51         0              Normal
  01/17/2026 08 AM PST            3.15             52         +              Normal
  01/17/2026 09 AM PST            3.16             54         +              Normal
  01/17/2026 10 AM PST            3.16             54         0              Normal
  01/17/2026 11 AM PST            3.12             48         -              Normal
  01/17/2026 12 PM PST            3.13             50         +              Normal
  01/17/2026 01 PM PST            3.14             51         +              Normal
  01/17/2026 02 PM PST            3.14             51         0              Normal
  01/17/2026 03 PM PST            3.14             51         0              Normal
  01/17/2026 04 PM PST            3.15             52         +              Normal
  01/17/2026 05 PM PST            3.16             54         +              Normal
  01/17/2026 06 PM PST            3.16             54         0              Normal
  01/17/2026 07 PM PST            3.15             52         -              Normal
  01/17/2026 08 PM PST            3.15             52         0              Normal
  01/17/2026 09 PM PST            3.16             54         +              Normal
  01/17/2026 10 PM PST            3.13             50         -              Normal
  01/17/2026 11 PM PST            3.13             50         0              Normal
  01/18/2026 12 AM PST            3.13             50         0              Normal
  01/18/2026 01 AM PST            3.14             51         +              Normal
  01/18/2026 02 AM PST            3.14             51         0              Normal
  01/18/2026 03 AM PST            3.14             51         0              Normal
  01/18/2026 04 AM PST            3.14             51         0              Normal
  01/18/2026 05 AM PST            3.14             51         0              Normal
  01/18/2026 06 AM PST            3.14             51         0              Normal
  01/18/2026 07 AM PST            3.14             51         0              Normal
  01/18/2026 08 AM PST            3.14             51         0              Normal
  01/18/2026 09 AM PST            3.14             51         0              Normal
  01/18/2026 10 AM PST            3.14             51         0              Normal
  01/18/2026 11 AM PST            3.11             47         -              Normal
  01/18/2026 12 PM PST            3.12             48         +              Normal
  01/18/2026 01 PM PST            3.12             48         0              Normal
  01/18/2026 02 PM PST            3.12             48         0              Normal
  01/18/2026 03 PM PST            3.12             48         0              Normal
  01/18/2026 04 PM PST            3.12             48         0              Normal
  01/18/2026 05 PM PST            3.12             48         0              Normal
  01/18/2026 06 PM PST            3.11             47         -              Normal
  01/18/2026 07 PM PST            3.11             47         0              Normal
  01/18/2026 08 PM PST            3.11             47         0              Normal
  01/18/2026 09 PM PST            3.11             47         0              Normal
  01/18/2026 10 PM PST            3.11             47         0              Normal
  01/18/2026 11 PM PST            3.11             47         0              Normal
  01/19/2026 12 AM PST            3.12             48         +              Normal
  01/19/2026 01 AM PST            3.12             48         0              Normal
  01/19/2026 02 AM PST            3.12             48         0              Normal
  01/19/2026 03 AM PST            3.12             48         0              Normal
  01/19/2026 04 AM PST            3.12             48         0              Normal
  01/19/2026 05 AM PST            3.11             47         -              Normal
  01/19/2026 06 AM PST            3.10             46         -              Normal
  01/19/2026 07 AM PST            3.12             48         +              Normal
  01/19/2026 08 AM PST            3.11             47         -              Normal
  01/19/2026 09 AM PST            3.11             47         0              Normal
  01/19/2026 10 AM PST            3.12             48         +              Normal
  01/19/2026 11 AM PST            3.11             47         -              Normal
  01/19/2026 12 PM PST            3.12             48         +              Normal
  01/19/2026 01 PM PST            3.13             50         +              Normal
  01/19/2026 02 PM PST            3.13             50         0              Normal
  01/19/2026 03 PM PST            3.13             50         0              Normal
  01/19/2026 04 PM PST            3.14             51         +              Normal
  01/19/2026 05 PM PST            3.13             50         -              Normal
  01/19/2026 06 PM PST            3.12             48         -              Normal
  01/19/2026 07 PM PST            3.13             50         +              Normal
  01/19/2026 08 PM PST            3.14             51         +              Normal
  01/19/2026 09 PM PST            3.14             51         0              Normal
  01/19/2026 10 PM PST            3.13             50         -              Normal
  01/19/2026 11 PM PST            3.10             46         -              Normal
  01/20/2026 12 AM PST            3.10             46         0              Normal
  01/20/2026 01 AM PST            3.09             44         -              Normal
  01/20/2026 02 AM PST            3.09             44         0              Normal
  01/20/2026 03 AM PST            3.09             44         0              Normal
  01/20/2026 04 AM PST            3.09             44         0              Normal
  01/20/2026 05 AM PST            3.09             44         0              Normal
  01/20/2026 06 AM PST            3.09             44         0              Normal
  01/20/2026 07 AM PST            3.09             44         0              Normal
  01/20/2026 08 AM PST            3.09             44         0              Normal
  01/20/2026 09 AM PST            3.09             44         0              Normal
  01/20/2026 10 AM PST            3.09             44         0              Normal
  01/20/2026 11 AM PST            3.10             46         +              Normal
  01/20/2026 12 PM PST            3.11             47         +              Normal
  01/20/2026 01 PM PST            3.12             48         +              Normal
  01/20/2026 02 PM PST            3.13             50         +              Normal
  01/20/2026 03 PM PST            3.13             50         0              Normal
  01/20/2026 04 PM PST            3.13             50         0              Normal
  01/20/2026 05 PM PST            3.13             50         0              Normal
  01/20/2026 06 PM PST            3.13             50         0              Normal
  01/20/2026 07 PM PST            3.12             48         -              Normal
  01/20/2026 08 PM PST            3.12             48         0              Normal
  01/20/2026 09 PM PST            3.10             46         -              Normal
  01/20/2026 10 PM PST            3.10             46         0              Normal
  01/20/2026 11 PM PST            3.09             44         -              Normal
  01/21/2026 12 AM PST            3.09             44         0              Normal
  01/21/2026 01 AM PST            3.09             44         0              Normal
  01/21/2026 02 AM PST            3.09             44         0              Normal
  01/21/2026 03 AM PST            3.10             46         +              Normal
  01/21/2026 04 AM PST            3.10             46         0              Normal
  01/21/2026 05 AM PST            3.10             46         0              Normal
  01/21/2026 06 AM PST            3.10             46         0              Normal
  01/21/2026 07 AM PST            3.10             46         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  01/21/2026 08 AM PST            3.10             46                        Normal
  01/21/2026 09 AM PST            3.10             46         0              Normal
  01/21/2026 10 AM PST            3.10             46         0              Normal
  01/21/2026 11 AM PST            3.10             46         0              Normal
  01/21/2026 12 PM PST            3.10             46         0              Normal
  01/21/2026 01 PM PST            3.10             46         0              Normal
  01/21/2026 02 PM PST            3.10             46         0              Normal
  01/21/2026 03 PM PST            3.10             46         0              Normal
  01/21/2026 04 PM PST            3.10             46         0              Normal
  01/21/2026 05 PM PST            3.10             46         0              Normal
  01/21/2026 06 PM PST            3.10             46         0              Normal
  01/21/2026 07 PM PST            3.10             46         0              Normal
  01/21/2026 08 PM PST            3.10             46         0              Normal
  01/21/2026 09 PM PST            3.10             46         0              Normal
  01/21/2026 10 PM PST            3.10             46         0              Normal
  01/21/2026 11 PM PST            3.10             46         0              Normal
  01/22/2026 12 AM PST            3.10             46         0              Normal
  01/22/2026 01 AM PST            3.10             46         0              Normal
  01/22/2026 02 AM PST            3.10             46         0              Normal
  01/22/2026 03 AM PST            3.10             46         0              Normal
  01/22/2026 04 AM PST            3.10             46         0              Normal
  01/22/2026 05 AM PST            3.10             46         0              Normal
  01/22/2026 06 AM PST            3.10             46         0              Normal
  01/22/2026 07 AM PST            3.10             46         0              Normal
  01/22/2026 08 AM PST            3.10             46         0              Normal
  01/22/2026 09 AM PST            3.10             46         0              Normal
  01/22/2026 10 AM PST            3.10             46         0              Normal
  01/22/2026 11 AM PST            3.10             46         0              Normal
  01/22/2026 12 PM PST            3.10             46         0              Normal
  01/22/2026 01 PM PST            3.10             46         0              Normal
  01/22/2026 02 PM PST            3.10             46         0              Normal
  01/22/2026 03 PM PST            3.10             46         0              Normal
  01/22/2026 04 PM PST            3.10             46         0              Normal
  01/22/2026 05 PM PST            3.10             46         0              Normal
  01/22/2026 06 PM PST            3.10             46         0              Normal
  01/22/2026 07 PM PST            3.10             46         0              Normal
  01/22/2026 08 PM PST            3.10             46         0              Normal
  01/22/2026 09 PM PST            3.10             46         0              Normal
  01/22/2026 10 PM PST            3.10             46         0              Normal
  01/22/2026 11 PM PST            3.10             46         0              Normal
  01/23/2026 12 AM PST            3.09             44         -              Normal
  01/23/2026 01 AM PST            3.09             44         0              Normal
  01/23/2026 02 AM PST            3.09             44         0              Normal
  01/23/2026 03 AM PST            3.09             44         0              Normal
  01/23/2026 04 AM PST            3.09             44         0              Normal
  01/23/2026 05 AM PST            3.09             44         0              Normal
  01/23/2026 06 AM PST            3.09             44         0              Normal
  01/23/2026 07 AM PST            3.09             44         0              Normal
  01/23/2026 08 AM PST            3.09             44         0              Normal
  01/23/2026 09 AM PST            3.09             44         0              Normal
  01/23/2026 10 AM PST            3.09             44         0              Normal
  01/23/2026 11 AM PST            3.09             44         0              Normal
  01/23/2026 12 PM PST            3.09             44         0              Normal
  01/23/2026 01 PM PST            3.09             44         0              Normal
  01/23/2026 02 PM PST            3.09             44         0              Normal
  01/23/2026 03 PM PST            3.09             44         0              Normal
  01/23/2026 04 PM PST            3.09             44         0              Normal
  01/23/2026 05 PM PST            3.09             44         0              Normal
  01/23/2026 06 PM PST            3.09             44         0              Normal
  01/23/2026 07 PM PST            3.09             44         0              Normal
  01/23/2026 08 PM PST            3.09             44         0              Normal
  01/23/2026 09 PM PST            3.09             44         0              Normal
  01/23/2026 10 PM PST            3.09             44         0              Normal
  01/23/2026 11 PM PST            3.08             43         -              Normal
  01/24/2026 12 AM PST            3.08             43         0              Normal
  01/24/2026 01 AM PST            3.08             43         0              Normal
  01/24/2026 02 AM PST            3.08             43         0              Normal
  01/24/2026 03 AM PST            3.08             43         0              Normal
  01/24/2026 04 AM PST            3.08             43         0              Normal
  01/24/2026 05 AM PST            3.08             43         0              Normal
  01/24/2026 06 AM PST            3.08             43         0              Normal
  01/24/2026 07 AM PST            3.08             43         0              Normal
  01/24/2026 08 AM PST            3.08             43         0              Normal
  01/24/2026 09 AM PST            3.08             43         0              Normal
  01/24/2026 10 AM PST            3.08             43         0              Normal
  01/24/2026 11 AM PST            3.08             43         0              Normal
  01/24/2026 12 PM PST            3.08             43         0              Normal
  01/24/2026 01 PM PST            3.08             43         0              Normal
  01/24/2026 02 PM PST            3.08             43         0              Normal
  01/24/2026 03 PM PST            3.08             43         0              Normal
  01/24/2026 04 PM PST            3.08             43         0              Normal
  01/24/2026 05 PM PST            3.08             43         0              Normal
  01/24/2026 06 PM PST            3.08             43         0              Normal
  01/24/2026 07 PM PST            3.08             43         0              Normal
  01/24/2026 08 PM PST            3.08             43         0              Normal
  01/24/2026 09 PM PST            3.08             43         0              Normal
  01/24/2026 10 PM PST            3.08             43         0              Normal
  01/24/2026 11 PM PST            3.08             43         0              Normal
  01/25/2026 12 AM PST            3.08             43         0              Normal
  01/25/2026 01 AM PST            3.08             43         0              Normal
  01/25/2026 02 AM PST            3.08             43         0              Normal
  01/25/2026 03 AM PST            3.08             43         0              Normal
  01/25/2026 04 AM PST            3.08             43         0              Normal
  01/25/2026 05 AM PST            3.08             43         0              Normal
  01/25/2026 06 AM PST            3.08             43         0              Normal
  01/25/2026 07 AM PST            3.08             43         0              Normal
  01/25/2026 08 AM PST            3.07             42         -              Normal
  01/25/2026 09 AM PST            3.07             42         0              Normal
  01/25/2026 10 AM PST            3.07             42         0              Normal
  01/25/2026 11 AM PST            3.07             42         0              Normal
  01/25/2026 12 PM PST            3.07             42         0              Normal
  01/25/2026 01 PM PST            3.07             42         0              Normal
  01/25/2026 02 PM PST            3.07             42         0              Normal
  01/25/2026 03 PM PST            3.07             42         0              Normal
  01/25/2026 04 PM PST            3.07             42         0              Normal
  01/25/2026 05 PM PST            3.07             42         0              Normal
  01/25/2026 06 PM PST            3.07             42         0              Normal
  01/25/2026 07 PM PST            3.07             42         0              Normal
  01/25/2026 08 PM PST            3.07             42         0              Normal
  01/25/2026 09 PM PST            3.07             42         0              Normal
  01/25/2026 10 PM PST            3.07             42         0              Normal
  01/25/2026 11 PM PST            3.07             42         0              Normal
  01/26/2026 12 AM PST            3.07             42         0              Normal
  01/26/2026 01 AM PST            3.07             42         0              Normal
  01/26/2026 02 AM PST            3.07             42         0              Normal
  01/26/2026 03 AM PST            3.07             42         0              Normal
  01/26/2026 04 AM PST            3.07             42         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.