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

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MAD RIVER - ARCATA (ARCC1)
Latitude: 40.91º NLongitude: 124.06º WElevation: 13 Feet
Location: Humboldt County in CaliforniaRiver Group: North Coast
Issuance Time: Aug 17 2022 at 8:47 AM PDTNext Issuance: Aug 18 2022 at 9:00 AM PDT
Monitor Stage: 15.0 FeetFlood Stage: 22.0 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Mad River - Arcata (ARCC1)
#
# File Generation Time:  08/17/2022 at 08:47 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  08/14/2022 at 09:00 PM PDT
# Maximum Observed Stage:                       5.7 Feet
# Maximum Observed Flow:                        79 cfs
#
# Earliest Date & Time of Maximum Forecast:     08/17/2022 at 09:00 AM PDT
# Maximum Forecast Stage:                       5.6 Feet
# Maximum Forecast Flow:                        68 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  08/12/2022 08 AM PDT             5.7             75                        Normal
  08/12/2022 09 AM PDT             5.7             75         0              Normal
  08/12/2022 10 AM PDT             5.7             75         0              Normal
  08/12/2022 11 AM PDT             5.6             71         -              Normal
  08/12/2022 12 PM PDT             5.7             72         +              Normal
  08/12/2022 01 PM PDT             5.7             72         0              Normal
  08/12/2022 02 PM PDT             5.7             72         0              Normal
  08/12/2022 03 PM PDT             5.7             73         +              Normal
  08/12/2022 04 PM PDT             5.7             75         +              Normal
  08/12/2022 05 PM PDT             5.7             76         +              Normal
  08/12/2022 06 PM PDT             5.7             78         +              Normal
  08/12/2022 07 PM PDT             5.7             78         0              Normal
  08/12/2022 08 PM PDT             5.7             79         +              Normal
  08/12/2022 09 PM PDT             5.7             79         0              Normal
  08/12/2022 10 PM PDT             5.7             79         0              Normal
  08/12/2022 11 PM PDT             5.7             76         -              Normal
  08/13/2022 12 AM PDT             5.7             75         -              Normal
  08/13/2022 01 AM PDT             5.7             73         -              Normal
  08/13/2022 02 AM PDT             5.7             72         -              Normal
  08/13/2022 03 AM PDT             5.6             71         -              Normal
  08/13/2022 04 AM PDT             5.6             71         0              Normal
  08/13/2022 05 AM PDT             5.6             69         -              Normal
  08/13/2022 06 AM PDT             5.6             71         +              Normal
  08/13/2022 07 AM PDT             5.7             72         +              Normal
  08/13/2022 08 AM PDT             5.7             72         0              Normal
  08/13/2022 09 AM PDT             5.7             73         +              Normal
  08/13/2022 10 AM PDT             5.7             72         -              Normal
  08/13/2022 11 AM PDT             5.6             71         -              Normal
  08/13/2022 12 PM PDT             5.6             71         0              Normal
  08/13/2022 01 PM PDT             5.6             69         -              Normal
  08/13/2022 02 PM PDT             5.6             69         0              Normal
  08/13/2022 03 PM PDT             5.6             69         0              Normal
  08/13/2022 04 PM PDT             5.6             69         0              Normal
  08/13/2022 05 PM PDT             5.7             72         +              Normal
  08/13/2022 06 PM PDT             5.7             75         +              Normal
  08/13/2022 07 PM PDT             5.7             76         +              Normal
  08/13/2022 08 PM PDT             5.7             78         +              Normal
  08/13/2022 09 PM PDT             5.7             79         +              Normal
  08/13/2022 10 PM PDT             5.7             78         -              Normal
  08/13/2022 11 PM PDT             5.7             76         -              Normal
  08/14/2022 12 AM PDT             5.7             75         -              Normal
  08/14/2022 01 AM PDT             5.7             73         -              Normal
  08/14/2022 02 AM PDT             5.6             71         -              Normal
  08/14/2022 03 AM PDT             5.6             71         0              Normal
  08/14/2022 04 AM PDT             5.6             69         -              Normal
  08/14/2022 05 AM PDT             5.6             69         0              Normal
  08/14/2022 06 AM PDT             5.6             69         0              Normal
  08/14/2022 07 AM PDT             5.6             71         +              Normal
  08/14/2022 08 AM PDT             5.7             72         +              Normal
  08/14/2022 09 AM PDT             5.7             72         0              Normal
  08/14/2022 10 AM PDT             5.6             71         -              Normal
  08/14/2022 11 AM PDT             5.6             69         -              Normal
  08/14/2022 12 PM PDT             5.6             69         0              Normal
  08/14/2022 01 PM PDT             5.6             69         0              Normal
  08/14/2022 02 PM PDT             5.6             68         -              Normal
  08/14/2022 03 PM PDT             5.6             69         +              Normal
  08/14/2022 04 PM PDT             5.7             72         +              Normal
  08/14/2022 05 PM PDT             5.7             73         +              Normal
  08/14/2022 06 PM PDT             5.7             76         +              Normal
  08/14/2022 07 PM PDT             5.7             76         0              Normal
  08/14/2022 08 PM PDT             5.7             78         +              Normal
  08/14/2022 09 PM PDT             5.7             79         +              Normal
  08/14/2022 10 PM PDT             5.7             78         -              Normal
  08/14/2022 11 PM PDT             5.7             75         -              Normal
  08/15/2022 12 AM PDT             5.7             72         -              Normal
  08/15/2022 01 AM PDT             5.6             71         -              Normal
  08/15/2022 02 AM PDT             5.6             71         0              Normal
  08/15/2022 03 AM PDT             5.6             69         -              Normal
  08/15/2022 04 AM PDT             5.6             69         0              Normal
  08/15/2022 05 AM PDT             5.6             69         0              Normal
  08/15/2022 06 AM PDT             5.6             71         +              Normal
  08/15/2022 07 AM PDT             5.7             72         +              Normal
  08/15/2022 08 AM PDT             5.7             72         0              Normal
  08/15/2022 09 AM PDT             5.6             69         -              Normal
  08/15/2022 10 AM PDT             5.6             69         0              Normal
  08/15/2022 11 AM PDT             5.6             69         0              Normal
  08/15/2022 12 PM PDT             5.6             68         -              Normal
  08/15/2022 01 PM PDT             5.6             68         0              Normal
  08/15/2022 02 PM PDT             5.6             68         0              Normal
  08/15/2022 03 PM PDT             5.6             68         0              Normal
  08/15/2022 04 PM PDT             5.6             71         +              Normal
  08/15/2022 05 PM PDT             5.7             73         +              Normal
  08/15/2022 06 PM PDT             5.7             75         +              Normal
  08/15/2022 07 PM PDT             5.7             76         +              Normal
  08/15/2022 08 PM PDT             5.7             76         0              Normal
  08/15/2022 09 PM PDT             5.7             78         +              Normal
  08/15/2022 10 PM PDT             5.7             76         -              Normal
  08/15/2022 11 PM PDT             5.7             73         -              Normal
  08/16/2022 12 AM PDT             5.7             72         -              Normal
  08/16/2022 01 AM PDT             5.6             68         -              Normal
  08/16/2022 02 AM PDT             5.6             66         -              Normal
  08/16/2022 03 AM PDT             5.6             66         0              Normal
  08/16/2022 04 AM PDT             5.6             66         0              Normal
  08/16/2022 05 AM PDT             5.6             69         +              Normal
  08/16/2022 06 AM PDT             5.6             71         +              Normal
  08/16/2022 07 AM PDT             5.7             72         +              Normal
  08/16/2022 08 AM PDT             5.7             72         0              Normal
  08/16/2022 09 AM PDT             5.6             71         -              Normal
  08/16/2022 10 AM PDT             5.6             66         -              Normal
  08/16/2022 11 AM PDT             5.6             65         -              Normal
  08/16/2022 12 PM PDT             5.6             62         -              Normal
  08/16/2022 01 PM PDT             5.6             62         0              Normal
  08/16/2022 02 PM PDT             5.6             62         0              Normal
  08/16/2022 03 PM PDT             5.6             66         +              Normal
  08/16/2022 04 PM PDT             5.6             69         +              Normal
  08/16/2022 05 PM PDT             5.7             72         +              Normal
  08/16/2022 06 PM PDT             5.7             73         +              Normal
  08/16/2022 07 PM PDT             5.7             75         +              Normal
  08/16/2022 08 PM PDT             5.7             76         +              Normal
  08/16/2022 09 PM PDT             5.7             76         0              Normal
  08/16/2022 10 PM PDT             5.7             76         0              Normal
  08/16/2022 11 PM PDT             5.7             72         -              Normal
  08/17/2022 12 AM PDT             5.7             72         0              Normal
  08/17/2022 01 AM PDT             5.6             68         -              Normal
  08/17/2022 02 AM PDT             5.6             65         -              Normal
  08/17/2022 03 AM PDT             5.6             65         0              Normal
  08/17/2022 04 AM PDT             5.6             66         +              Normal
  08/17/2022 05 AM PDT             5.6             68         +              Normal
  08/17/2022 06 AM PDT             5.6             68         0              Normal
  08/17/2022 07 AM PDT             5.6             68         0              Normal
  08/17/2022 08 AM PDT             5.6             68         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  08/17/2022 09 AM PDT             5.6             68                        Normal
  08/17/2022 10 AM PDT             5.6             68         0              Normal
  08/17/2022 11 AM PDT             5.6             68         0              Normal
  08/17/2022 12 PM PDT             5.6             68         0              Normal
  08/17/2022 01 PM PDT             5.6             68         0              Normal
  08/17/2022 02 PM PDT             5.6             68         0              Normal
  08/17/2022 03 PM PDT             5.6             68         0              Normal
  08/17/2022 04 PM PDT             5.6             66         -              Normal
  08/17/2022 05 PM PDT             5.6             66         0              Normal
  08/17/2022 06 PM PDT             5.6             66         0              Normal
  08/17/2022 07 PM PDT             5.6             66         0              Normal
  08/17/2022 08 PM PDT             5.6             66         0              Normal
  08/17/2022 09 PM PDT             5.6             66         0              Normal
  08/17/2022 10 PM PDT             5.6             66         0              Normal
  08/17/2022 11 PM PDT             5.6             66         0              Normal
  08/18/2022 12 AM PDT             5.6             66         0              Normal
  08/18/2022 01 AM PDT             5.6             66         0              Normal
  08/18/2022 02 AM PDT             5.6             66         0              Normal
  08/18/2022 03 AM PDT             5.6             66         0              Normal
  08/18/2022 04 AM PDT             5.6             66         0              Normal
  08/18/2022 05 AM PDT             5.6             66         0              Normal
  08/18/2022 06 AM PDT             5.6             66         0              Normal
  08/18/2022 07 AM PDT             5.6             66         0              Normal
  08/18/2022 08 AM PDT             5.6             66         0              Normal
  08/18/2022 09 AM PDT             5.6             66         0              Normal
  08/18/2022 10 AM PDT             5.6             66         0              Normal
  08/18/2022 11 AM PDT             5.6             66         0              Normal
  08/18/2022 12 PM PDT             5.6             66         0              Normal
  08/18/2022 01 PM PDT             5.6             66         0              Normal
  08/18/2022 02 PM PDT             5.6             66         0              Normal
  08/18/2022 03 PM PDT             5.6             66         0              Normal
  08/18/2022 04 PM PDT             5.6             65         -              Normal
  08/18/2022 05 PM PDT             5.6             65         0              Normal
  08/18/2022 06 PM PDT             5.6             65         0              Normal
  08/18/2022 07 PM PDT             5.6             65         0              Normal
  08/18/2022 08 PM PDT             5.6             65         0              Normal
  08/18/2022 09 PM PDT             5.6             65         0              Normal
  08/18/2022 10 PM PDT             5.6             65         0              Normal
  08/18/2022 11 PM PDT             5.6             65         0              Normal
  08/19/2022 12 AM PDT             5.6             65         0              Normal
  08/19/2022 01 AM PDT             5.6             65         0              Normal
  08/19/2022 02 AM PDT             5.6             65         0              Normal
  08/19/2022 03 AM PDT             5.6             65         0              Normal
  08/19/2022 04 AM PDT             5.6             65         0              Normal
  08/19/2022 05 AM PDT             5.6             65         0              Normal
  08/19/2022 06 AM PDT             5.6             65         0              Normal
  08/19/2022 07 AM PDT             5.6             65         0              Normal
  08/19/2022 08 AM PDT             5.6             65         0              Normal
  08/19/2022 09 AM PDT             5.6             65         0              Normal
  08/19/2022 10 AM PDT             5.6             65         0              Normal
  08/19/2022 11 AM PDT             5.6             65         0              Normal
  08/19/2022 12 PM PDT             5.6             65         0              Normal
  08/19/2022 01 PM PDT             5.6             65         0              Normal
  08/19/2022 02 PM PDT             5.6             65         0              Normal
  08/19/2022 03 PM PDT             5.6             65         0              Normal
  08/19/2022 04 PM PDT             5.6             65         0              Normal
  08/19/2022 05 PM PDT             5.6             65         0              Normal
  08/19/2022 06 PM PDT             5.6             65         0              Normal
  08/19/2022 07 PM PDT             5.6             65         0              Normal
  08/19/2022 08 PM PDT             5.6             65         0              Normal
  08/19/2022 09 PM PDT             5.6             64         -              Normal
  08/19/2022 10 PM PDT             5.6             65         +              Normal
  08/19/2022 11 PM PDT             5.6             65         0              Normal
  08/20/2022 12 AM PDT             5.6             65         0              Normal
  08/20/2022 01 AM PDT             5.6             65         0              Normal
  08/20/2022 02 AM PDT             5.6             65         0              Normal
  08/20/2022 03 AM PDT             5.6             64         -              Normal
  08/20/2022 04 AM PDT             5.6             64         0              Normal
  08/20/2022 05 AM PDT             5.6             64         0              Normal
  08/20/2022 06 AM PDT             5.6             64         0              Normal
  08/20/2022 07 AM PDT             5.6             64         0              Normal
  08/20/2022 08 AM PDT             5.6             64         0              Normal
  08/20/2022 09 AM PDT             5.6             64         0              Normal
  08/20/2022 10 AM PDT             5.6             64         0              Normal
  08/20/2022 11 AM PDT             5.6             64         0              Normal
  08/20/2022 12 PM PDT             5.6             64         0              Normal
  08/20/2022 01 PM PDT             5.6             64         0              Normal
  08/20/2022 02 PM PDT             5.6             64         0              Normal
  08/20/2022 03 PM PDT             5.6             64         0              Normal
  08/20/2022 04 PM PDT             5.6             64         0              Normal
  08/20/2022 05 PM PDT             5.6             64         0              Normal
  08/20/2022 06 PM PDT             5.6             64         0              Normal
  08/20/2022 07 PM PDT             5.6             64         0              Normal
  08/20/2022 08 PM PDT             5.6             64         0              Normal
  08/20/2022 09 PM PDT             5.6             64         0              Normal
  08/20/2022 10 PM PDT             5.6             64         0              Normal
  08/20/2022 11 PM PDT             5.6             64         0              Normal
  08/21/2022 12 AM PDT             5.6             64         0              Normal
  08/21/2022 01 AM PDT             5.6             64         0              Normal
  08/21/2022 02 AM PDT             5.6             64         0              Normal
  08/21/2022 03 AM PDT             5.6             64         0              Normal
  08/21/2022 04 AM PDT             5.6             64         0              Normal
  08/21/2022 05 AM PDT             5.6             64         0              Normal
  08/21/2022 06 AM PDT             5.6             64         0              Normal
  08/21/2022 07 AM PDT             5.6             64         0              Normal
  08/21/2022 08 AM PDT             5.6             62         -              Normal
  08/21/2022 09 AM PDT             5.6             62         0              Normal
  08/21/2022 10 AM PDT             5.6             62         0              Normal
  08/21/2022 11 AM PDT             5.6             62         0              Normal
  08/21/2022 12 PM PDT             5.6             62         0              Normal
  08/21/2022 01 PM PDT             5.6             62         0              Normal
  08/21/2022 02 PM PDT             5.6             62         0              Normal
  08/21/2022 03 PM PDT             5.6             62         0              Normal
  08/21/2022 04 PM PDT             5.6             62         0              Normal
  08/21/2022 05 PM PDT             5.6             62         0              Normal
  08/21/2022 06 PM PDT             5.6             62         0              Normal
  08/21/2022 07 PM PDT             5.6             62         0              Normal
  08/21/2022 08 PM PDT             5.6             62         0              Normal
  08/21/2022 09 PM PDT             5.6             62         0              Normal
  08/21/2022 10 PM PDT             5.6             62         0              Normal
  08/21/2022 11 PM PDT             5.6             62         0              Normal
  08/22/2022 12 AM PDT             5.6             62         0              Normal
  08/22/2022 01 AM PDT             5.6             62         0              Normal
  08/22/2022 02 AM PDT             5.6             62         0              Normal
  08/22/2022 03 AM PDT             5.6             62         0              Normal
  08/22/2022 04 AM PDT             5.6             62         0              Normal
  08/22/2022 05 AM PDT             5.6             62         0              Normal
#
# NOTE 1: Stages are rounded to the nearest tenth (.1) 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.