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MAD RIVER - ARCATA (ARCC1)
Latitude: 40.91º N | Longitude: 124.06º W | Elevation: 13 Feet | | | |
Location: Humboldt County in California | Bulletin Group: North Coast | River Group: North Coast |
Issuance Time: | Jul 10 2025 at 7:41 AM PDT | Next Issuance: | Jul 11 2025 at 9:00 AM PDT
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Action/Monitor: 15.0 Feet | Minor Flood: 22.0 Feet | Moderate Flood: 24.0 Feet | Major Flood: 28.0 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Mad River - Arcata (ARCC1)
#
# File Generation Time: 07/10/2025 at 07:42 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 07/05/2025 at 06:00 PM PDT
# Maximum Observed Stage: 5.88 Feet
# Maximum Observed Flow: 124 cfs
#
# Earliest Date & Time of Maximum Forecast: 07/10/2025 at 08:00 AM PDT
# Maximum Forecast Stage: 5.80 Feet
# Maximum Forecast Flow: 106 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
07/05/2025 07 AM PDT 5.81 108 Normal
07/05/2025 08 AM PDT 5.81 108 0 Normal
07/05/2025 09 AM PDT 5.81 108 0 Normal
07/05/2025 10 AM PDT 5.82 110 + Normal
07/05/2025 11 AM PDT 5.83 113 + Normal
07/05/2025 12 PM PDT 5.82 110 - Normal
07/05/2025 01 PM PDT 5.83 113 + Normal
07/05/2025 02 PM PDT 5.81 108 - Normal
07/05/2025 03 PM PDT 5.83 113 + Normal
07/05/2025 04 PM PDT 5.84 115 + Normal
07/05/2025 05 PM PDT 5.84 115 0 Normal
07/05/2025 06 PM PDT 5.88 124 + Normal
07/05/2025 07 PM PDT 5.87 121 - Normal
07/05/2025 08 PM PDT 5.86 119 - Normal
07/05/2025 09 PM PDT 5.85 117 - Normal
07/05/2025 10 PM PDT 5.84 115 - Normal
07/05/2025 11 PM PDT 5.83 113 - Normal
07/06/2025 12 AM PDT 5.83 113 0 Normal
07/06/2025 01 AM PDT 5.81 108 - Normal
07/06/2025 02 AM PDT 5.82 110 + Normal
07/06/2025 03 AM PDT 5.82 110 0 Normal
07/06/2025 04 AM PDT 5.81 108 - Normal
07/06/2025 05 AM PDT 5.80 106 - Normal
07/06/2025 06 AM PDT 5.83 113 + Normal
07/06/2025 07 AM PDT 5.81 108 - Normal
07/06/2025 08 AM PDT 5.81 108 0 Normal
07/06/2025 09 AM PDT 5.82 110 + Normal
07/06/2025 10 AM PDT 5.81 108 - Normal
07/06/2025 11 AM PDT 5.82 110 + Normal
07/06/2025 12 PM PDT 5.83 113 + Normal
07/06/2025 01 PM PDT 5.80 106 - Normal
07/06/2025 02 PM PDT 5.82 110 + Normal
07/06/2025 03 PM PDT 5.83 113 + Normal
07/06/2025 04 PM PDT 5.83 113 0 Normal
07/06/2025 05 PM PDT 5.84 115 + Normal
07/06/2025 06 PM PDT 5.84 115 0 Normal
07/06/2025 07 PM PDT 5.84 115 0 Normal
07/06/2025 08 PM PDT 5.83 113 - Normal
07/06/2025 09 PM PDT 5.83 113 0 Normal
07/06/2025 10 PM PDT 5.82 110 - Normal
07/06/2025 11 PM PDT 5.81 108 - Normal
07/07/2025 12 AM PDT 5.81 108 0 Normal
07/07/2025 01 AM PDT 5.80 106 - Normal
07/07/2025 02 AM PDT 5.80 106 0 Normal
07/07/2025 03 AM PDT 5.80 106 0 Normal
07/07/2025 04 AM PDT 5.80 106 0 Normal
07/07/2025 05 AM PDT 5.80 106 0 Normal
07/07/2025 06 AM PDT 5.80 106 0 Normal
07/07/2025 07 AM PDT 5.79 104 - Normal
07/07/2025 08 AM PDT 5.78 102 - Normal
07/07/2025 09 AM PDT 5.78 102 0 Normal
07/07/2025 10 AM PDT 5.79 104 + Normal
07/07/2025 11 AM PDT 5.79 104 0 Normal
07/07/2025 12 PM PDT 5.79 104 0 Normal
07/07/2025 01 PM PDT 5.78 102 - Normal
07/07/2025 02 PM PDT 5.84 115 + Normal
07/07/2025 03 PM PDT 5.82 110 - Normal
07/07/2025 04 PM PDT 5.84 115 + Normal
07/07/2025 05 PM PDT 5.82 110 - Normal
07/07/2025 06 PM PDT 5.84 115 + Normal
07/07/2025 07 PM PDT 5.84 115 0 Normal
07/07/2025 08 PM PDT 5.84 115 0 Normal
07/07/2025 09 PM PDT 5.86 119 + Normal
07/07/2025 10 PM PDT 5.84 115 - Normal
07/07/2025 11 PM PDT 5.81 108 - Normal
07/08/2025 12 AM PDT 5.82 110 + Normal
07/08/2025 01 AM PDT 5.79 104 - Normal
07/08/2025 02 AM PDT 5.81 108 + Normal
07/08/2025 03 AM PDT 5.80 106 - Normal
07/08/2025 04 AM PDT 5.83 113 + Normal
07/08/2025 05 AM PDT 5.80 106 - Normal
07/08/2025 06 AM PDT 5.80 106 0 Normal
07/08/2025 07 AM PDT 5.81 108 + Normal
07/08/2025 08 AM PDT 5.79 104 - Normal
07/08/2025 09 AM PDT 5.81 108 + Normal
07/08/2025 10 AM PDT 5.83 113 + Normal
07/08/2025 11 AM PDT 5.84 115 + Normal
07/08/2025 12 PM PDT 5.81 108 - Normal
07/08/2025 01 PM PDT 5.81 108 0 Normal
07/08/2025 02 PM PDT 5.80 106 - Normal
07/08/2025 03 PM PDT 5.81 108 + Normal
07/08/2025 04 PM PDT 5.82 110 + Normal
07/08/2025 05 PM PDT 5.86 119 + Normal
07/08/2025 06 PM PDT 5.83 113 - Normal
07/08/2025 07 PM PDT 5.84 115 + Normal
07/08/2025 08 PM PDT 5.85 117 + Normal
07/08/2025 09 PM PDT 5.84 115 - Normal
07/08/2025 10 PM PDT 5.83 113 - Normal
07/08/2025 11 PM PDT 5.82 110 - Normal
07/09/2025 12 AM PDT 5.81 108 - Normal
07/09/2025 01 AM PDT 5.80 106 - Normal
07/09/2025 02 AM PDT 5.79 104 - Normal
07/09/2025 03 AM PDT 5.79 104 0 Normal
07/09/2025 04 AM PDT 5.81 108 + Normal
07/09/2025 05 AM PDT 5.78 102 - Normal
07/09/2025 06 AM PDT 5.80 106 + Normal
07/09/2025 07 AM PDT 5.80 106 0 Normal
07/09/2025 08 AM PDT 5.79 104 - Normal
07/09/2025 09 AM PDT 5.79 104 0 Normal
07/09/2025 10 AM PDT 5.80 106 + Normal
07/09/2025 11 AM PDT 5.80 106 0 Normal
07/09/2025 12 PM PDT 5.79 104 - Normal
07/09/2025 01 PM PDT 5.79 104 0 Normal
07/09/2025 02 PM PDT 5.79 104 0 Normal
07/09/2025 03 PM PDT 5.81 108 + Normal
07/09/2025 04 PM PDT 5.81 108 0 Normal
07/09/2025 05 PM PDT 5.83 113 + Normal
07/09/2025 06 PM PDT 5.83 113 0 Normal
07/09/2025 07 PM PDT 5.84 115 + Normal
07/09/2025 08 PM PDT 5.83 113 - Normal
07/09/2025 09 PM PDT 5.82 110 - Normal
07/09/2025 10 PM PDT 5.81 108 - Normal
07/09/2025 11 PM PDT 5.79 104 - Normal
07/10/2025 12 AM PDT 5.80 106 + Normal
07/10/2025 01 AM PDT 5.79 104 - Normal
07/10/2025 02 AM PDT 5.79 104 0 Normal
07/10/2025 03 AM PDT 5.79 104 0 Normal
07/10/2025 04 AM PDT 5.79 104 0 Normal
07/10/2025 05 AM PDT 5.80 106 + Normal
07/10/2025 06 AM PDT 5.80 106 0 Normal
07/10/2025 07 AM PDT 5.80 106 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
07/10/2025 08 AM PDT 5.80 106 Normal
07/10/2025 09 AM PDT 5.80 106 0 Normal
07/10/2025 10 AM PDT 5.80 106 0 Normal
07/10/2025 11 AM PDT 5.80 106 0 Normal
07/10/2025 12 PM PDT 5.80 106 0 Normal
07/10/2025 01 PM PDT 5.80 106 0 Normal
07/10/2025 02 PM PDT 5.79 104 - Normal
07/10/2025 03 PM PDT 5.79 104 0 Normal
07/10/2025 04 PM PDT 5.79 104 0 Normal
07/10/2025 05 PM PDT 5.79 104 0 Normal
07/10/2025 06 PM PDT 5.79 104 0 Normal
07/10/2025 07 PM PDT 5.79 104 0 Normal
07/10/2025 08 PM PDT 5.79 104 0 Normal
07/10/2025 09 PM PDT 5.79 104 0 Normal
07/10/2025 10 PM PDT 5.79 104 0 Normal
07/10/2025 11 PM PDT 5.79 104 0 Normal
07/11/2025 12 AM PDT 5.79 104 0 Normal
07/11/2025 01 AM PDT 5.79 104 0 Normal
07/11/2025 02 AM PDT 5.79 104 0 Normal
07/11/2025 03 AM PDT 5.79 104 0 Normal
07/11/2025 04 AM PDT 5.79 104 0 Normal
07/11/2025 05 AM PDT 5.79 104 0 Normal
07/11/2025 06 AM PDT 5.79 104 0 Normal
07/11/2025 07 AM PDT 5.79 104 0 Normal
07/11/2025 08 AM PDT 5.79 104 0 Normal
07/11/2025 09 AM PDT 5.79 104 0 Normal
07/11/2025 10 AM PDT 5.79 104 0 Normal
07/11/2025 11 AM PDT 5.78 102 - Normal
07/11/2025 12 PM PDT 5.78 102 0 Normal
07/11/2025 01 PM PDT 5.78 102 0 Normal
07/11/2025 02 PM PDT 5.78 102 0 Normal
07/11/2025 03 PM PDT 5.78 102 0 Normal
07/11/2025 04 PM PDT 5.78 102 0 Normal
07/11/2025 05 PM PDT 5.78 102 0 Normal
07/11/2025 06 PM PDT 5.78 102 0 Normal
07/11/2025 07 PM PDT 5.78 102 0 Normal
07/11/2025 08 PM PDT 5.78 102 0 Normal
07/11/2025 09 PM PDT 5.78 102 0 Normal
07/11/2025 10 PM PDT 5.78 102 0 Normal
07/11/2025 11 PM PDT 5.78 102 0 Normal
07/12/2025 12 AM PDT 5.78 102 0 Normal
07/12/2025 01 AM PDT 5.78 102 0 Normal
07/12/2025 02 AM PDT 5.78 102 0 Normal
07/12/2025 03 AM PDT 5.78 102 0 Normal
07/12/2025 04 AM PDT 5.78 102 0 Normal
07/12/2025 05 AM PDT 5.78 102 0 Normal
07/12/2025 06 AM PDT 5.78 102 0 Normal
07/12/2025 07 AM PDT 5.77 100 - Normal
07/12/2025 08 AM PDT 5.77 100 0 Normal
07/12/2025 09 AM PDT 5.77 100 0 Normal
07/12/2025 10 AM PDT 5.77 100 0 Normal
07/12/2025 11 AM PDT 5.77 100 0 Normal
07/12/2025 12 PM PDT 5.77 100 0 Normal
07/12/2025 01 PM PDT 5.77 100 0 Normal
07/12/2025 02 PM PDT 5.77 100 0 Normal
07/12/2025 03 PM PDT 5.77 100 0 Normal
07/12/2025 04 PM PDT 5.77 100 0 Normal
07/12/2025 05 PM PDT 5.77 100 0 Normal
07/12/2025 06 PM PDT 5.77 100 0 Normal
07/12/2025 07 PM PDT 5.77 100 0 Normal
07/12/2025 08 PM PDT 5.77 100 0 Normal
07/12/2025 09 PM PDT 5.77 100 0 Normal
07/12/2025 10 PM PDT 5.77 100 0 Normal
07/12/2025 11 PM PDT 5.77 100 0 Normal
07/13/2025 12 AM PDT 5.77 100 0 Normal
07/13/2025 01 AM PDT 5.77 100 0 Normal
07/13/2025 02 AM PDT 5.76 98 - Normal
07/13/2025 03 AM PDT 5.76 98 0 Normal
07/13/2025 04 AM PDT 5.76 98 0 Normal
07/13/2025 05 AM PDT 5.76 98 0 Normal
07/13/2025 06 AM PDT 5.76 98 0 Normal
07/13/2025 07 AM PDT 5.76 98 0 Normal
07/13/2025 08 AM PDT 5.76 98 0 Normal
07/13/2025 09 AM PDT 5.76 98 0 Normal
07/13/2025 10 AM PDT 5.76 98 0 Normal
07/13/2025 11 AM PDT 5.76 98 0 Normal
07/13/2025 12 PM PDT 5.76 98 0 Normal
07/13/2025 01 PM PDT 5.76 98 0 Normal
07/13/2025 02 PM PDT 5.76 98 0 Normal
07/13/2025 03 PM PDT 5.76 98 0 Normal
07/13/2025 04 PM PDT 5.76 98 0 Normal
07/13/2025 05 PM PDT 5.76 98 0 Normal
07/13/2025 06 PM PDT 5.76 98 0 Normal
07/13/2025 07 PM PDT 5.76 98 0 Normal
07/13/2025 08 PM PDT 5.76 98 0 Normal
07/13/2025 09 PM PDT 5.76 98 0 Normal
07/13/2025 10 PM PDT 5.75 96 - Normal
07/13/2025 11 PM PDT 5.75 96 0 Normal
07/14/2025 12 AM PDT 5.75 96 0 Normal
07/14/2025 01 AM PDT 5.75 96 0 Normal
07/14/2025 02 AM PDT 5.75 96 0 Normal
07/14/2025 03 AM PDT 5.75 96 0 Normal
07/14/2025 04 AM PDT 5.75 96 0 Normal
07/14/2025 05 AM PDT 5.75 96 0 Normal
07/14/2025 06 AM PDT 5.75 96 0 Normal
07/14/2025 07 AM PDT 5.75 96 0 Normal
07/14/2025 08 AM PDT 5.75 96 0 Normal
07/14/2025 09 AM PDT 5.75 96 0 Normal
07/14/2025 10 AM PDT 5.75 96 0 Normal
07/14/2025 11 AM PDT 5.75 96 0 Normal
07/14/2025 12 PM PDT 5.75 96 0 Normal
07/14/2025 01 PM PDT 5.75 96 0 Normal
07/14/2025 02 PM PDT 5.75 96 0 Normal
07/14/2025 03 PM PDT 5.75 96 0 Normal
07/14/2025 04 PM PDT 5.75 96 0 Normal
07/14/2025 05 PM PDT 5.75 96 0 Normal
07/14/2025 06 PM PDT 5.74 94 - Normal
07/14/2025 07 PM PDT 5.74 94 0 Normal
07/14/2025 08 PM PDT 5.74 94 0 Normal
07/14/2025 09 PM PDT 5.74 94 0 Normal
07/14/2025 10 PM PDT 5.74 94 0 Normal
07/14/2025 11 PM PDT 5.74 94 0 Normal
07/15/2025 12 AM PDT 5.74 94 0 Normal
07/15/2025 01 AM PDT 5.74 94 0 Normal
07/15/2025 02 AM PDT 5.74 94 0 Normal
07/15/2025 03 AM PDT 5.74 94 0 Normal
07/15/2025 04 AM PDT 5.74 94 0 Normal
07/15/2025 05 AM PDT 5.74 94 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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