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

 | 

BEAR CREEK - HOLSTEN CHIMNEY CANYON (HCHC1)
Latitude: 38.96º NLongitude: 122.34º WElevation: 920 FeetForecast Type: Unofficial Location
Location: Colusa County in CaliforniaBulletin Group: Lower SacramentoRiver Group: Cache Putah
Issuance Time: May 18 2026 at 7:39 AM PDTNext Issuance: May 19 2026 at 9:00 AM PDT
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A


# Tabular Observed and Forecast Hydrograph Information
#
# Location: Bear Creek - Holsten Chimney Canyon (HCHC1)
#
# File Generation Time:  05/18/2026 at 07:40 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  05/13/2026 at 02:00 PM PDT
# Maximum Observed Stage:                       4.64 Feet
# Maximum Observed Flow:                        12 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/18/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       4.56 Feet
# Maximum Forecast Flow:                        10 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  05/13/2026 07 AM PDT            4.64             12                Not Applicable
  05/13/2026 08 AM PDT            4.64             12         0      Not Applicable
  05/13/2026 09 AM PDT            4.64             12         0      Not Applicable
  05/13/2026 10 AM PDT            4.64             12         0      Not Applicable
  05/13/2026 11 AM PDT            4.64             12         0      Not Applicable
  05/13/2026 12 PM PDT            4.64             12         0      Not Applicable
  05/13/2026 01 PM PDT            4.64             12         0      Not Applicable
  05/13/2026 02 PM PDT            4.64             12         0      Not Applicable
  05/13/2026 03 PM PDT            4.63             12         -      Not Applicable
  05/13/2026 04 PM PDT            4.63             12         0      Not Applicable
  05/13/2026 05 PM PDT            4.63             12         0      Not Applicable
  05/13/2026 06 PM PDT            4.62             11         -      Not Applicable
  05/13/2026 07 PM PDT            4.62             11         0      Not Applicable
  05/13/2026 08 PM PDT            4.62             11         0      Not Applicable
  05/13/2026 09 PM PDT            4.62             11         0      Not Applicable
  05/13/2026 10 PM PDT            4.62             11         0      Not Applicable
  05/13/2026 11 PM PDT            4.63             12         +      Not Applicable
  05/14/2026 12 AM PDT            4.63             12         0      Not Applicable
  05/14/2026 01 AM PDT            4.63             12         0      Not Applicable
  05/14/2026 02 AM PDT            4.63             12         0      Not Applicable
  05/14/2026 03 AM PDT            4.63             12         0      Not Applicable
  05/14/2026 04 AM PDT            4.63             12         0      Not Applicable
  05/14/2026 05 AM PDT            4.63             12         0      Not Applicable
  05/14/2026 06 AM PDT            4.62             11         -      Not Applicable
  05/14/2026 07 AM PDT            4.62             11         0      Not Applicable
  05/14/2026 08 AM PDT            4.62             11         0      Not Applicable
  05/14/2026 09 AM PDT            4.63             12         +      Not Applicable
  05/14/2026 10 AM PDT            4.63             12         0      Not Applicable
  05/14/2026 11 AM PDT            4.63             12         0      Not Applicable
  05/14/2026 12 PM PDT            4.63             12         0      Not Applicable
  05/14/2026 01 PM PDT            4.63             12         0      Not Applicable
  05/14/2026 02 PM PDT            4.62             11         -      Not Applicable
  05/14/2026 03 PM PDT            4.62             11         0      Not Applicable
  05/14/2026 04 PM PDT            4.61             11         -      Not Applicable
  05/14/2026 05 PM PDT            4.61             11         0      Not Applicable
  05/14/2026 06 PM PDT            4.60             11         -      Not Applicable
  05/14/2026 07 PM PDT            4.60             11         0      Not Applicable
  05/14/2026 08 PM PDT            4.60             11         0      Not Applicable
  05/14/2026 09 PM PDT            4.60             11         0      Not Applicable
  05/14/2026 10 PM PDT            4.60             11         0      Not Applicable
  05/14/2026 11 PM PDT            4.61             11         +      Not Applicable
  05/15/2026 12 AM PDT            4.61             11         0      Not Applicable
  05/15/2026 01 AM PDT            4.61             11         0      Not Applicable
  05/15/2026 02 AM PDT            4.61             11         0      Not Applicable
  05/15/2026 03 AM PDT            4.61             11         0      Not Applicable
  05/15/2026 04 AM PDT            4.61             11         0      Not Applicable
  05/15/2026 05 AM PDT            4.61             11         0      Not Applicable
  05/15/2026 06 AM PDT            4.60             11         -      Not Applicable
  05/15/2026 07 AM PDT            4.60             11         0      Not Applicable
  05/15/2026 08 AM PDT            4.60             11         0      Not Applicable
  05/15/2026 09 AM PDT            4.60             11         0      Not Applicable
  05/15/2026 10 AM PDT            4.60             11         0      Not Applicable
  05/15/2026 11 AM PDT            4.61             11         +      Not Applicable
  05/15/2026 12 PM PDT            4.60             11         -      Not Applicable
  05/15/2026 01 PM PDT            4.60             11         0      Not Applicable
  05/15/2026 02 PM PDT            4.60             11         0      Not Applicable
  05/15/2026 03 PM PDT            4.59             11         -      Not Applicable
  05/15/2026 04 PM PDT            4.59             11         0      Not Applicable
  05/15/2026 05 PM PDT            4.59             11         0      Not Applicable
  05/15/2026 06 PM PDT            4.58             10         -      Not Applicable
  05/15/2026 07 PM PDT            4.58             10         0      Not Applicable
  05/15/2026 08 PM PDT            4.58             10         0      Not Applicable
  05/15/2026 09 PM PDT            4.58             10         0      Not Applicable
  05/15/2026 10 PM PDT            4.58             10         0      Not Applicable
  05/15/2026 11 PM PDT            4.59             11         +      Not Applicable
  05/16/2026 12 AM PDT            4.59             11         0      Not Applicable
  05/16/2026 01 AM PDT            4.59             11         0      Not Applicable
  05/16/2026 02 AM PDT            4.59             11         0      Not Applicable
  05/16/2026 03 AM PDT            4.59             11         0      Not Applicable
  05/16/2026 04 AM PDT            4.59             11         0      Not Applicable
  05/16/2026 05 AM PDT            4.59             11         0      Not Applicable
  05/16/2026 06 AM PDT            4.59             11         0      Not Applicable
  05/16/2026 07 AM PDT            4.58             10         -      Not Applicable
  05/16/2026 08 AM PDT            4.58             10         0      Not Applicable
  05/16/2026 09 AM PDT            4.59             11         +      Not Applicable
  05/16/2026 10 AM PDT            4.59             11         0      Not Applicable
  05/16/2026 11 AM PDT            4.59             11         0      Not Applicable
  05/16/2026 12 PM PDT            4.59             11         0      Not Applicable
  05/16/2026 01 PM PDT            4.59             11         0      Not Applicable
  05/16/2026 02 PM PDT            4.58             10         -      Not Applicable
  05/16/2026 03 PM PDT            4.57             10         -      Not Applicable
  05/16/2026 04 PM PDT            4.59             11         +      Not Applicable
  05/16/2026 05 PM PDT            4.60             11         +      Not Applicable
  05/16/2026 06 PM PDT            4.59             11         -      Not Applicable
  05/16/2026 07 PM PDT            4.59             11         0      Not Applicable
  05/16/2026 08 PM PDT            4.58             10         -      Not Applicable
  05/16/2026 09 PM PDT            4.57             10         -      Not Applicable
  05/16/2026 10 PM PDT            4.58             10         +      Not Applicable
  05/16/2026 11 PM PDT            4.57             10         -      Not Applicable
  05/17/2026 12 AM PDT            4.58             10         +      Not Applicable
  05/17/2026 01 AM PDT            4.58             10         0      Not Applicable
  05/17/2026 02 AM PDT            4.58             10         0      Not Applicable
  05/17/2026 03 AM PDT            4.58             10         0      Not Applicable
  05/17/2026 04 AM PDT            4.58             10         0      Not Applicable
  05/17/2026 05 AM PDT            4.58             10         0      Not Applicable
  05/17/2026 06 AM PDT            4.59             11         +      Not Applicable
  05/17/2026 07 AM PDT            4.58             10         -      Not Applicable
  05/17/2026 08 AM PDT            4.57             10         -      Not Applicable
  05/17/2026 09 AM PDT            4.58             10         +      Not Applicable
  05/17/2026 10 AM PDT            4.58             10         0      Not Applicable
  05/17/2026 11 AM PDT            4.59             11         +      Not Applicable
  05/17/2026 12 PM PDT            4.58             10         -      Not Applicable
  05/17/2026 01 PM PDT            4.57             10         -      Not Applicable
  05/17/2026 02 PM PDT            4.56             10         -      Not Applicable
  05/17/2026 03 PM PDT            4.57             10         +      Not Applicable
  05/17/2026 04 PM PDT            4.56             10         -      Not Applicable
  05/17/2026 05 PM PDT            4.57             10         +      Not Applicable
  05/17/2026 06 PM PDT            4.57             10         0      Not Applicable
  05/17/2026 07 PM PDT            4.56             10         -      Not Applicable
  05/17/2026 08 PM PDT            4.56             10         0      Not Applicable
  05/17/2026 09 PM PDT            4.56             10         0      Not Applicable
  05/17/2026 10 PM PDT            4.56             10         0      Not Applicable
  05/17/2026 11 PM PDT            4.57             10         +      Not Applicable
  05/18/2026 12 AM PDT            4.57             10         0      Not Applicable
  05/18/2026 01 AM PDT            4.57             10         0      Not Applicable
  05/18/2026 02 AM PDT            4.57             10         0      Not Applicable
  05/18/2026 03 AM PDT            4.57             10         0      Not Applicable
  05/18/2026 04 AM PDT            4.56             10         -      Not Applicable
  05/18/2026 05 AM PDT            4.56             10         0      Not Applicable
  05/18/2026 06 AM PDT            4.56             10         0      Not Applicable
  05/18/2026 07 AM PDT            4.56             10         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/18/2026 08 AM PDT            4.56             10                Not Applicable
  05/18/2026 09 AM PDT            4.56             10         0      Not Applicable
  05/18/2026 10 AM PDT            4.56             10         0      Not Applicable
  05/18/2026 11 AM PDT            4.56             10         0      Not Applicable
  05/18/2026 12 PM PDT            4.55             10         -      Not Applicable
  05/18/2026 01 PM PDT            4.55             10         0      Not Applicable
  05/18/2026 02 PM PDT            4.55             10         0      Not Applicable
  05/18/2026 03 PM PDT            4.55             10         0      Not Applicable
  05/18/2026 04 PM PDT            4.55             10         0      Not Applicable
  05/18/2026 05 PM PDT            4.55             10         0      Not Applicable
  05/18/2026 06 PM PDT            4.55             10         0      Not Applicable
  05/18/2026 07 PM PDT            4.55             10         0      Not Applicable
  05/18/2026 08 PM PDT            4.55             10         0      Not Applicable
  05/18/2026 09 PM PDT            4.55             10         0      Not Applicable
  05/18/2026 10 PM PDT            4.55             10         0      Not Applicable
  05/18/2026 11 PM PDT            4.55             10         0      Not Applicable
  05/19/2026 12 AM PDT            4.55             10         0      Not Applicable
  05/19/2026 01 AM PDT            4.55             10         0      Not Applicable
  05/19/2026 02 AM PDT            4.55             10         0      Not Applicable
  05/19/2026 03 AM PDT            4.54              9         -      Not Applicable
  05/19/2026 04 AM PDT            4.54              9         0      Not Applicable
  05/19/2026 05 AM PDT            4.54              9         0      Not Applicable
  05/19/2026 06 AM PDT            4.54              9         0      Not Applicable
  05/19/2026 07 AM PDT            4.54              9         0      Not Applicable
  05/19/2026 08 AM PDT            4.54              9         0      Not Applicable
  05/19/2026 09 AM PDT            4.54              9         0      Not Applicable
  05/19/2026 10 AM PDT            4.54              9         0      Not Applicable
  05/19/2026 11 AM PDT            4.54              9         0      Not Applicable
  05/19/2026 12 PM PDT            4.54              9         0      Not Applicable
  05/19/2026 01 PM PDT            4.54              9         0      Not Applicable
  05/19/2026 02 PM PDT            4.54              9         0      Not Applicable
  05/19/2026 03 PM PDT            4.54              9         0      Not Applicable
  05/19/2026 04 PM PDT            4.54              9         0      Not Applicable
  05/19/2026 05 PM PDT            4.54              9         0      Not Applicable
  05/19/2026 06 PM PDT            4.54              9         0      Not Applicable
  05/19/2026 07 PM PDT            4.53              9         -      Not Applicable
  05/19/2026 08 PM PDT            4.53              9         0      Not Applicable
  05/19/2026 09 PM PDT            4.53              9         0      Not Applicable
  05/19/2026 10 PM PDT            4.53              9         0      Not Applicable
  05/19/2026 11 PM PDT            4.53              9         0      Not Applicable
  05/20/2026 12 AM PDT            4.53              9         0      Not Applicable
  05/20/2026 01 AM PDT            4.53              9         0      Not Applicable
  05/20/2026 02 AM PDT            4.53              9         0      Not Applicable
  05/20/2026 03 AM PDT            4.53              9         0      Not Applicable
  05/20/2026 04 AM PDT            4.53              9         0      Not Applicable
  05/20/2026 05 AM PDT            4.53              9         0      Not Applicable
  05/20/2026 06 AM PDT            4.53              9         0      Not Applicable
  05/20/2026 07 AM PDT            4.53              9         0      Not Applicable
  05/20/2026 08 AM PDT            4.53              9         0      Not Applicable
  05/20/2026 09 AM PDT            4.53              9         0      Not Applicable
  05/20/2026 10 AM PDT            4.53              9         0      Not Applicable
  05/20/2026 11 AM PDT            4.52              9         -      Not Applicable
  05/20/2026 12 PM PDT            4.52              9         0      Not Applicable
  05/20/2026 01 PM PDT            4.52              9         0      Not Applicable
  05/20/2026 02 PM PDT            4.52              9         0      Not Applicable
  05/20/2026 03 PM PDT            4.52              9         0      Not Applicable
  05/20/2026 04 PM PDT            4.52              9         0      Not Applicable
  05/20/2026 05 PM PDT            4.52              9         0      Not Applicable
  05/20/2026 06 PM PDT            4.52              9         0      Not Applicable
  05/20/2026 07 PM PDT            4.52              9         0      Not Applicable
  05/20/2026 08 PM PDT            4.52              9         0      Not Applicable
  05/20/2026 09 PM PDT            4.52              9         0      Not Applicable
  05/20/2026 10 PM PDT            4.52              9         0      Not Applicable
  05/20/2026 11 PM PDT            4.51              9         -      Not Applicable
  05/21/2026 12 AM PDT            4.51              9         0      Not Applicable
  05/21/2026 01 AM PDT            4.51              9         0      Not Applicable
  05/21/2026 02 AM PDT            4.51              9         0      Not Applicable
  05/21/2026 03 AM PDT            4.51              9         0      Not Applicable
  05/21/2026 04 AM PDT            4.51              9         0      Not Applicable
  05/21/2026 05 AM PDT            4.51              9         0      Not Applicable
  05/21/2026 06 AM PDT            4.51              9         0      Not Applicable
  05/21/2026 07 AM PDT            4.51              9         0      Not Applicable
  05/21/2026 08 AM PDT            4.51              9         0      Not Applicable
  05/21/2026 09 AM PDT            4.51              9         0      Not Applicable
  05/21/2026 10 AM PDT            4.51              9         0      Not Applicable
  05/21/2026 11 AM PDT            4.51              9         0      Not Applicable
  05/21/2026 12 PM PDT            4.51              9         0      Not Applicable
  05/21/2026 01 PM PDT            4.51              9         0      Not Applicable
  05/21/2026 02 PM PDT            4.50              8         -      Not Applicable
  05/21/2026 03 PM PDT            4.50              8         0      Not Applicable
  05/21/2026 04 PM PDT            4.50              8         0      Not Applicable
  05/21/2026 05 PM PDT            4.50              8         0      Not Applicable
  05/21/2026 06 PM PDT            4.50              8         0      Not Applicable
  05/21/2026 07 PM PDT            4.50              8         0      Not Applicable
  05/21/2026 08 PM PDT            4.50              8         0      Not Applicable
  05/21/2026 09 PM PDT            4.50              8         0      Not Applicable
  05/21/2026 10 PM PDT            4.50              8         0      Not Applicable
  05/21/2026 11 PM PDT            4.50              8         0      Not Applicable
  05/22/2026 12 AM PDT            4.50              8         0      Not Applicable
  05/22/2026 01 AM PDT            4.50              8         0      Not Applicable
  05/22/2026 02 AM PDT            4.50              8         0      Not Applicable
  05/22/2026 03 AM PDT            4.50              8         0      Not Applicable
  05/22/2026 04 AM PDT            4.50              8         0      Not Applicable
  05/22/2026 05 AM PDT            4.50              8         0      Not Applicable
  05/22/2026 06 AM PDT            4.49              8         -      Not Applicable
  05/22/2026 07 AM PDT            4.49              8         0      Not Applicable
  05/22/2026 08 AM PDT            4.49              8         0      Not Applicable
  05/22/2026 09 AM PDT            4.49              8         0      Not Applicable
  05/22/2026 10 AM PDT            4.49              8         0      Not Applicable
  05/22/2026 11 AM PDT            4.49              8         0      Not Applicable
  05/22/2026 12 PM PDT            4.49              8         0      Not Applicable
  05/22/2026 01 PM PDT            4.49              8         0      Not Applicable
  05/22/2026 02 PM PDT            4.49              8         0      Not Applicable
  05/22/2026 03 PM PDT            4.49              8         0      Not Applicable
  05/22/2026 04 PM PDT            4.49              8         0      Not Applicable
  05/22/2026 05 PM PDT            4.49              8         0      Not Applicable
  05/22/2026 06 PM PDT            4.49              8         0      Not Applicable
  05/22/2026 07 PM PDT            4.49              8         0      Not Applicable
  05/22/2026 08 PM PDT            4.48              8         -      Not Applicable
  05/22/2026 09 PM PDT            4.48              8         0      Not Applicable
  05/22/2026 10 PM PDT            4.48              8         0      Not Applicable
  05/22/2026 11 PM PDT            4.48              8         0      Not Applicable
  05/23/2026 12 AM PDT            4.48              8         0      Not Applicable
  05/23/2026 01 AM PDT            4.48              8         0      Not Applicable
  05/23/2026 02 AM PDT            4.48              8         0      Not Applicable
  05/23/2026 03 AM PDT            4.48              8         0      Not Applicable
  05/23/2026 04 AM PDT            4.48              8         0      Not Applicable
  05/23/2026 05 AM PDT            4.48              8         0      Not Applicable
#
# 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.