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

 |  End of River Group

NAPA RIVER - NAPA (APCC1)
Latitude: 38.37º NLongitude: 122.30º WElevation: 25 FeetForecast Type: Official Location
Location: Napa County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Apr 06 2026 at 7:06 AM PDTNext Issuance: Apr 06 2026 at 3:00 PM PDT
Action/Monitor: 22.0 FeetMinor Flood: 25.0 FeetModerate Flood: 26.0 FeetMajor Flood: 28.0 Feet


# Tabular Observed and Forecast Hydrograph Information
#
# Location: Napa River - Napa (APCC1)
#
# File Generation Time:  04/06/2026 at 07:06 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/01/2026 at 01:00 PM PDT
# Maximum Observed Stage:                       3.21 Feet
# Maximum Observed Flow:                        54 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/10/2026 at 10:00 PM PDT
# Maximum Forecast Stage:                       3.06 Feet
# Maximum Forecast Flow:                        41 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/01/2026 07 AM PDT            3.19             52                        Normal
  04/01/2026 08 AM PDT            3.19             52         0              Normal
  04/01/2026 09 AM PDT            3.19             52         0              Normal
  04/01/2026 10 AM PDT            3.20             53         +              Normal
  04/01/2026 11 AM PDT            3.20             53         0              Normal
  04/01/2026 12 PM PDT            3.21             54         +              Normal
  04/01/2026 01 PM PDT            3.21             54         0              Normal
  04/01/2026 02 PM PDT            3.20             53         -              Normal
  04/01/2026 03 PM PDT            3.19             52         -              Normal
  04/01/2026 04 PM PDT            3.19             52         0              Normal
  04/01/2026 05 PM PDT            3.18             51         -              Normal
  04/01/2026 06 PM PDT            3.18             51         0              Normal
  04/01/2026 07 PM PDT            3.17             50         -              Normal
  04/01/2026 08 PM PDT            3.16             49         -              Normal
  04/01/2026 09 PM PDT            3.16             49         0              Normal
  04/01/2026 10 PM PDT            3.16             49         0              Normal
  04/01/2026 11 PM PDT            3.16             49         0              Normal
  04/02/2026 12 AM PDT            3.16             49         0              Normal
  04/02/2026 01 AM PDT            3.15             48         -              Normal
  04/02/2026 02 AM PDT            3.15             48         0              Normal
  04/02/2026 03 AM PDT            3.15             48         0              Normal
  04/02/2026 04 AM PDT            3.15             48         0              Normal
  04/02/2026 05 AM PDT            3.15             48         0              Normal
  04/02/2026 06 AM PDT            3.15             48         0              Normal
  04/02/2026 07 AM PDT            3.16             49         +              Normal
  04/02/2026 08 AM PDT            3.17             50         +              Normal
  04/02/2026 09 AM PDT            3.18             51         +              Normal
  04/02/2026 10 AM PDT            3.18             51         0              Normal
  04/02/2026 11 AM PDT            3.17             50         -              Normal
  04/02/2026 12 PM PDT            3.17             50         0              Normal
  04/02/2026 01 PM PDT            3.17             50         0              Normal
  04/02/2026 02 PM PDT            3.17             50         0              Normal
  04/02/2026 03 PM PDT            3.17             50         0              Normal
  04/02/2026 04 PM PDT            3.17             50         0              Normal
  04/02/2026 05 PM PDT            3.17             50         0              Normal
  04/02/2026 06 PM PDT            3.16             49         -              Normal
  04/02/2026 07 PM PDT            3.16             49         0              Normal
  04/02/2026 08 PM PDT            3.14             48         -              Normal
  04/02/2026 09 PM PDT            3.14             48         0              Normal
  04/02/2026 10 PM PDT            3.13             47         -              Normal
  04/02/2026 11 PM PDT            3.12             46         -              Normal
  04/03/2026 12 AM PDT            3.12             46         0              Normal
  04/03/2026 01 AM PDT            3.12             46         0              Normal
  04/03/2026 02 AM PDT            3.11             45         -              Normal
  04/03/2026 03 AM PDT            3.11             45         0              Normal
  04/03/2026 04 AM PDT            3.10             44         -              Normal
  04/03/2026 05 AM PDT            3.10             44         0              Normal
  04/03/2026 06 AM PDT            3.09             43         -              Normal
  04/03/2026 07 AM PDT            3.09             43         0              Normal
  04/03/2026 08 AM PDT            3.09             43         0              Normal
  04/03/2026 09 AM PDT            3.09             43         0              Normal
  04/03/2026 10 AM PDT            3.09             43         0              Normal
  04/03/2026 11 AM PDT            3.08             42         -              Normal
  04/03/2026 12 PM PDT            3.08             42         0              Normal
  04/03/2026 01 PM PDT            3.08             42         0              Normal
  04/03/2026 02 PM PDT            3.08             42         0              Normal
  04/03/2026 03 PM PDT            3.08             42         0              Normal
  04/03/2026 04 PM PDT            3.08             42         0              Normal
  04/03/2026 05 PM PDT            3.08             42         0              Normal
  04/03/2026 06 PM PDT            3.08             42         0              Normal
  04/03/2026 07 PM PDT            3.08             42         0              Normal
  04/03/2026 08 PM PDT            3.07             42         -              Normal
  04/03/2026 09 PM PDT            3.08             42         +              Normal
  04/03/2026 10 PM PDT            3.07             42         -              Normal
  04/03/2026 11 PM PDT            3.07             42         0              Normal
  04/04/2026 12 AM PDT            3.07             42         0              Normal
  04/04/2026 01 AM PDT            3.07             42         0              Normal
  04/04/2026 02 AM PDT            3.06             41         -              Normal
  04/04/2026 03 AM PDT            3.06             41         0              Normal
  04/04/2026 04 AM PDT            3.06             41         0              Normal
  04/04/2026 05 AM PDT            3.06             41         0              Normal
  04/04/2026 06 AM PDT            3.06             41         0              Normal
  04/04/2026 07 AM PDT            3.06             41         0              Normal
  04/04/2026 08 AM PDT            3.05             40         -              Normal
  04/04/2026 09 AM PDT            3.05             40         0              Normal
  04/04/2026 10 AM PDT            3.05             40         0              Normal
  04/04/2026 11 AM PDT            3.05             40         0              Normal
  04/04/2026 12 PM PDT            3.05             40         0              Normal
  04/04/2026 01 PM PDT            3.05             40         0              Normal
  04/04/2026 02 PM PDT            3.05             40         0              Normal
  04/04/2026 03 PM PDT            3.05             40         0              Normal
  04/04/2026 04 PM PDT            3.05             40         0              Normal
  04/04/2026 05 PM PDT            3.05             40         0              Normal
  04/04/2026 06 PM PDT            3.05             40         0              Normal
  04/04/2026 07 PM PDT            3.04             39         -              Normal
  04/04/2026 08 PM PDT            3.04             39         0              Normal
  04/04/2026 09 PM PDT            3.04             39         0              Normal
  04/04/2026 10 PM PDT            3.04             39         0              Normal
  04/04/2026 11 PM PDT            3.04             39         0              Normal
  04/05/2026 12 AM PDT            3.04             39         0              Normal
  04/05/2026 01 AM PDT            3.04             39         0              Normal
  04/05/2026 02 AM PDT            3.04             39         0              Normal
  04/05/2026 03 AM PDT            3.04             39         0              Normal
  04/05/2026 04 AM PDT            3.04             39         0              Normal
  04/05/2026 05 AM PDT            3.04             39         0              Normal
  04/05/2026 06 AM PDT            3.04             39         0              Normal
  04/05/2026 07 AM PDT            3.04             39         0              Normal
  04/05/2026 08 AM PDT            3.04             39         0              Normal
  04/05/2026 09 AM PDT            3.03             38         -              Normal
  04/05/2026 10 AM PDT            3.04             39         +              Normal
  04/05/2026 11 AM PDT            3.04             39         0              Normal
  04/05/2026 12 PM PDT            3.04             39         0              Normal
  04/05/2026 01 PM PDT            3.04             39         0              Normal
  04/05/2026 02 PM PDT            3.04             39         0              Normal
  04/05/2026 03 PM PDT            3.03             38         -              Normal
  04/05/2026 04 PM PDT            3.04             39         +              Normal
  04/05/2026 05 PM PDT            3.04             39         0              Normal
  04/05/2026 06 PM PDT            3.03             38         -              Normal
  04/05/2026 07 PM PDT            3.04             39         +              Normal
  04/05/2026 08 PM PDT            3.03             38         -              Normal
  04/05/2026 09 PM PDT            3.03             38         0              Normal
  04/05/2026 10 PM PDT            3.03             38         0              Normal
  04/05/2026 11 PM PDT            3.03             38         0              Normal
  04/06/2026 12 AM PDT            3.02             38         -              Normal
  04/06/2026 01 AM PDT            3.03             38         +              Normal
  04/06/2026 02 AM PDT            3.02             38         -              Normal
  04/06/2026 03 AM PDT            3.03             38         +              Normal
  04/06/2026 04 AM PDT            3.02             38         -              Normal
  04/06/2026 05 AM PDT            3.03             38         +              Normal
  04/06/2026 06 AM PDT            3.03             38         0              Normal
  04/06/2026 07 AM PDT            3.03             38         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/06/2026 08 AM PDT            3.03             38                        Normal
  04/06/2026 09 AM PDT            3.03             38         0              Normal
  04/06/2026 10 AM PDT            3.02             38         -              Normal
  04/06/2026 11 AM PDT            3.02             38         0              Normal
  04/06/2026 12 PM PDT            3.02             38         0              Normal
  04/06/2026 01 PM PDT            3.02             38         0              Normal
  04/06/2026 02 PM PDT            3.02             38         0              Normal
  04/06/2026 03 PM PDT            3.02             38         0              Normal
  04/06/2026 04 PM PDT            3.02             38         0              Normal
  04/06/2026 05 PM PDT            3.02             38         0              Normal
  04/06/2026 06 PM PDT            3.01             37         -              Normal
  04/06/2026 07 PM PDT            3.01             37         0              Normal
  04/06/2026 08 PM PDT            3.01             37         0              Normal
  04/06/2026 09 PM PDT            3.01             37         0              Normal
  04/06/2026 10 PM PDT            3.01             37         0              Normal
  04/06/2026 11 PM PDT            3.01             37         0              Normal
  04/07/2026 12 AM PDT            3.01             37         0              Normal
  04/07/2026 01 AM PDT            3.01             37         0              Normal
  04/07/2026 02 AM PDT            3.01             37         0              Normal
  04/07/2026 03 AM PDT            3.01             37         0              Normal
  04/07/2026 04 AM PDT            3.01             37         0              Normal
  04/07/2026 05 AM PDT            3.01             37         0              Normal
  04/07/2026 06 AM PDT            3.01             37         0              Normal
  04/07/2026 07 AM PDT            3.00             36         -              Normal
  04/07/2026 08 AM PDT            3.00             36         0              Normal
  04/07/2026 09 AM PDT            3.00             36         0              Normal
  04/07/2026 10 AM PDT            3.00             36         0              Normal
  04/07/2026 11 AM PDT            3.00             36         0              Normal
  04/07/2026 12 PM PDT            3.00             36         0              Normal
  04/07/2026 01 PM PDT            3.00             36         0              Normal
  04/07/2026 02 PM PDT            3.00             36         0              Normal
  04/07/2026 03 PM PDT            3.00             36         0              Normal
  04/07/2026 04 PM PDT            3.00             36         0              Normal
  04/07/2026 05 PM PDT            3.00             36         0              Normal
  04/07/2026 06 PM PDT            3.00             36         0              Normal
  04/07/2026 07 PM PDT            3.00             36         0              Normal
  04/07/2026 08 PM PDT            3.00             36         0              Normal
  04/07/2026 09 PM PDT            3.00             36         0              Normal
  04/07/2026 10 PM PDT            3.00             36         0              Normal
  04/07/2026 11 PM PDT            3.00             36         0              Normal
  04/08/2026 12 AM PDT            3.00             36         0              Normal
  04/08/2026 01 AM PDT            2.99             35         -              Normal
  04/08/2026 02 AM PDT            2.99             35         0              Normal
  04/08/2026 03 AM PDT            2.99             35         0              Normal
  04/08/2026 04 AM PDT            2.99             35         0              Normal
  04/08/2026 05 AM PDT            2.99             35         0              Normal
  04/08/2026 06 AM PDT            2.99             35         0              Normal
  04/08/2026 07 AM PDT            2.99             35         0              Normal
  04/08/2026 08 AM PDT            2.99             35         0              Normal
  04/08/2026 09 AM PDT            2.99             35         0              Normal
  04/08/2026 10 AM PDT            2.99             35         0              Normal
  04/08/2026 11 AM PDT            2.99             35         0              Normal
  04/08/2026 12 PM PDT            2.99             35         0              Normal
  04/08/2026 01 PM PDT            2.99             35         0              Normal
  04/08/2026 02 PM PDT            2.99             35         0              Normal
  04/08/2026 03 PM PDT            2.99             35         0              Normal
  04/08/2026 04 PM PDT            2.99             35         0              Normal
  04/08/2026 05 PM PDT            2.98             35         -              Normal
  04/08/2026 06 PM PDT            2.98             35         0              Normal
  04/08/2026 07 PM PDT            2.98             35         0              Normal
  04/08/2026 08 PM PDT            2.98             35         0              Normal
  04/08/2026 09 PM PDT            2.98             35         0              Normal
  04/08/2026 10 PM PDT            2.98             35         0              Normal
  04/08/2026 11 PM PDT            2.98             35         0              Normal
  04/09/2026 12 AM PDT            2.98             35         0              Normal
  04/09/2026 01 AM PDT            2.98             35         0              Normal
  04/09/2026 02 AM PDT            2.98             35         0              Normal
  04/09/2026 03 AM PDT            2.98             35         0              Normal
  04/09/2026 04 AM PDT            2.98             35         0              Normal
  04/09/2026 05 AM PDT            2.98             35         0              Normal
  04/09/2026 06 AM PDT            2.98             35         0              Normal
  04/09/2026 07 AM PDT            2.98             35         0              Normal
  04/09/2026 08 AM PDT            2.98             35         0              Normal
  04/09/2026 09 AM PDT            2.98             35         0              Normal
  04/09/2026 10 AM PDT            2.98             35         0              Normal
  04/09/2026 11 AM PDT            2.98             35         0              Normal
  04/09/2026 12 PM PDT            2.98             35         0              Normal
  04/09/2026 01 PM PDT            2.98             35         0              Normal
  04/09/2026 02 PM PDT            2.98             35         0              Normal
  04/09/2026 03 PM PDT            2.98             35         0              Normal
  04/09/2026 04 PM PDT            2.98             35         0              Normal
  04/09/2026 05 PM PDT            2.98             35         0              Normal
  04/09/2026 06 PM PDT            2.99             35         +              Normal
  04/09/2026 07 PM PDT            3.00             36         +              Normal
  04/09/2026 08 PM PDT            3.00             36         0              Normal
  04/09/2026 09 PM PDT            3.01             37         +              Normal
  04/09/2026 10 PM PDT            3.01             37         0              Normal
  04/09/2026 11 PM PDT            3.02             38         +              Normal
  04/10/2026 12 AM PDT            3.02             38         0              Normal
  04/10/2026 01 AM PDT            3.02             38         0              Normal
  04/10/2026 02 AM PDT            3.02             38         0              Normal
  04/10/2026 03 AM PDT            3.03             38         +              Normal
  04/10/2026 04 AM PDT            3.03             38         0              Normal
  04/10/2026 05 AM PDT            3.03             38         0              Normal
  04/10/2026 06 AM PDT            3.03             38         0              Normal
  04/10/2026 07 AM PDT            3.03             38         0              Normal
  04/10/2026 08 AM PDT            3.02             38         -              Normal
  04/10/2026 09 AM PDT            3.02             38         0              Normal
  04/10/2026 10 AM PDT            3.02             38         0              Normal
  04/10/2026 11 AM PDT            3.02             38         0              Normal
  04/10/2026 12 PM PDT            3.02             38         0              Normal
  04/10/2026 01 PM PDT            3.01             37         -              Normal
  04/10/2026 02 PM PDT            3.01             37         0              Normal
  04/10/2026 03 PM PDT            3.01             37         0              Normal
  04/10/2026 04 PM PDT            3.01             37         0              Normal
  04/10/2026 05 PM PDT            3.02             38         +              Normal
  04/10/2026 06 PM PDT            3.02             38         0              Normal
  04/10/2026 07 PM PDT            3.03             38         +              Normal
  04/10/2026 08 PM PDT            3.04             39         +              Normal
  04/10/2026 09 PM PDT            3.05             40         +              Normal
  04/10/2026 10 PM PDT            3.06             41         +              Normal
  04/10/2026 11 PM PDT            3.06             41         0              Normal
  04/11/2026 12 AM PDT            3.06             41         0              Normal
  04/11/2026 01 AM PDT            3.06             41         0              Normal
  04/11/2026 02 AM PDT            3.05             40         -              Normal
  04/11/2026 03 AM PDT            3.04             39         -              Normal
  04/11/2026 04 AM PDT            3.04             39         0              Normal
  04/11/2026 05 AM PDT            3.04             39         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.