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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: | Feb 13 2026 at 12:45 PM PST | Next Issuance: | Feb 14 2026 at 9:00 AM PST
| |
| 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: 02/13/2026 at 12:45 PM PST
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 02/09/2026 at 06:00 AM PST
# Maximum Observed Stage: 7.21 Feet
# Maximum Observed Flow: 830 cfs
#
# Earliest Date & Time of Maximum Forecast: 02/17/2026 at 07:00 AM PST
# Maximum Forecast Stage: 9.68 Feet
# Maximum Forecast Flow: 3065 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
02/08/2026 12 PM PST 6.72 565 Normal
02/08/2026 01 PM PST 6.75 579 + Normal
02/08/2026 02 PM PST 6.77 589 + Normal
02/08/2026 03 PM PST 6.79 599 + Normal
02/08/2026 04 PM PST 6.84 624 + Normal
02/08/2026 05 PM PST 6.88 645 + Normal
02/08/2026 06 PM PST 6.89 650 + Normal
02/08/2026 07 PM PST 6.92 666 + Normal
02/08/2026 08 PM PST 6.97 693 + Normal
02/08/2026 09 PM PST 7.02 721 + Normal
02/08/2026 10 PM PST 7.05 737 + Normal
02/08/2026 11 PM PST 7.09 760 + Normal
02/09/2026 12 AM PST 7.12 777 + Normal
02/09/2026 01 AM PST 7.15 795 + Normal
02/09/2026 02 AM PST 7.18 812 + Normal
02/09/2026 03 AM PST 7.20 824 + Normal
02/09/2026 04 AM PST 7.21 830 + Normal
02/09/2026 05 AM PST 7.21 830 0 Normal
02/09/2026 06 AM PST 7.21 830 0 Normal
02/09/2026 07 AM PST 7.20 824 - Normal
02/09/2026 08 AM PST 7.19 818 - Normal
02/09/2026 09 AM PST 7.17 806 - Normal
02/09/2026 10 AM PST 7.16 800 - Normal
02/09/2026 11 AM PST 7.16 800 0 Normal
02/09/2026 12 PM PST 7.16 800 0 Normal
02/09/2026 01 PM PST 7.15 795 - Normal
02/09/2026 02 PM PST 7.15 795 0 Normal
02/09/2026 03 PM PST 7.14 789 - Normal
02/09/2026 04 PM PST 7.14 789 0 Normal
02/09/2026 05 PM PST 7.14 789 0 Normal
02/09/2026 06 PM PST 7.13 783 - Normal
02/09/2026 07 PM PST 7.13 783 0 Normal
02/09/2026 08 PM PST 7.12 777 - Normal
02/09/2026 09 PM PST 7.11 771 - Normal
02/09/2026 10 PM PST 7.09 760 - Normal
02/09/2026 11 PM PST 7.07 749 - Normal
02/10/2026 12 AM PST 7.05 737 - Normal
02/10/2026 01 AM PST 7.04 732 - Normal
02/10/2026 02 AM PST 7.03 726 - Normal
02/10/2026 03 AM PST 7.02 721 - Normal
02/10/2026 04 AM PST 7.01 715 - Normal
02/10/2026 05 AM PST 7.00 710 - Normal
02/10/2026 06 AM PST 6.99 704 - Normal
02/10/2026 07 AM PST 6.98 699 - Normal
02/10/2026 08 AM PST 6.97 693 - Normal
02/10/2026 09 AM PST 6.95 682 - Normal
02/10/2026 10 AM PST 6.95 682 0 Normal
02/10/2026 11 AM PST 6.95 682 0 Normal
02/10/2026 12 PM PST 6.94 677 - Normal
02/10/2026 01 PM PST 6.94 677 0 Normal
02/10/2026 02 PM PST 6.93 672 - Normal
02/10/2026 03 PM PST 6.93 672 0 Normal
02/10/2026 04 PM PST 6.92 666 - Normal
02/10/2026 05 PM PST 6.93 672 + Normal
02/10/2026 06 PM PST 6.93 672 0 Normal
02/10/2026 07 PM PST 6.92 666 - Normal
02/10/2026 08 PM PST 6.92 666 0 Normal
02/10/2026 09 PM PST 6.92 666 0 Normal
02/10/2026 10 PM PST 6.91 661 - Normal
02/10/2026 11 PM PST 6.90 656 - Normal
02/11/2026 12 AM PST 6.89 650 - Normal
02/11/2026 01 AM PST 6.88 645 - Normal
02/11/2026 02 AM PST 6.87 640 - Normal
02/11/2026 03 AM PST 6.87 640 0 Normal
02/11/2026 04 AM PST 6.86 635 - Normal
02/11/2026 05 AM PST 6.86 635 0 Normal
02/11/2026 06 AM PST 6.86 635 0 Normal
02/11/2026 07 AM PST 6.86 635 0 Normal
02/11/2026 08 AM PST 6.85 630 - Normal
02/11/2026 09 AM PST 6.84 624 - Normal
02/11/2026 10 AM PST 6.84 624 0 Normal
02/11/2026 11 AM PST 6.84 624 0 Normal
02/11/2026 12 PM PST 6.84 624 0 Normal
02/11/2026 01 PM PST 6.84 624 0 Normal
02/11/2026 02 PM PST 6.84 624 0 Normal
02/11/2026 03 PM PST 6.84 624 0 Normal
02/11/2026 04 PM PST 6.84 624 0 Normal
02/11/2026 05 PM PST 6.84 624 0 Normal
02/11/2026 06 PM PST 6.84 624 0 Normal
02/11/2026 07 PM PST 6.84 624 0 Normal
02/11/2026 08 PM PST 6.83 619 - Normal
02/11/2026 09 PM PST 6.83 619 0 Normal
02/11/2026 10 PM PST 6.82 614 - Normal
02/11/2026 11 PM PST 6.81 609 - Normal
02/12/2026 12 AM PST 6.80 604 - Normal
02/12/2026 01 AM PST 6.80 604 0 Normal
02/12/2026 02 AM PST 6.79 599 - Normal
02/12/2026 03 AM PST 6.79 599 0 Normal
02/12/2026 04 AM PST 6.80 604 + Normal
02/12/2026 05 AM PST 6.79 599 - Normal
02/12/2026 06 AM PST 6.78 594 - Normal
02/12/2026 07 AM PST 6.78 594 0 Normal
02/12/2026 08 AM PST 6.78 594 0 Normal
02/12/2026 09 AM PST 6.78 594 0 Normal
02/12/2026 10 AM PST 6.78 594 0 Normal
02/12/2026 11 AM PST 6.78 594 0 Normal
02/12/2026 12 PM PST 6.79 599 + Normal
02/12/2026 01 PM PST 6.79 599 0 Normal
02/12/2026 02 PM PST 6.80 604 + Normal
02/12/2026 03 PM PST 6.80 604 0 Normal
02/12/2026 04 PM PST 6.80 604 0 Normal
02/12/2026 05 PM PST 6.81 609 + Normal
02/12/2026 06 PM PST 6.81 609 0 Normal
02/12/2026 07 PM PST 6.80 604 - Normal
02/12/2026 08 PM PST 6.80 604 0 Normal
02/12/2026 09 PM PST 6.80 604 0 Normal
02/12/2026 10 PM PST 6.79 599 - Normal
02/12/2026 11 PM PST 6.78 594 - Normal
02/13/2026 12 AM PST 6.77 589 - Normal
02/13/2026 01 AM PST 6.76 584 - Normal
02/13/2026 02 AM PST 6.76 584 0 Normal
02/13/2026 03 AM PST 6.76 584 0 Normal
02/13/2026 04 AM PST 6.75 579 - Normal
02/13/2026 05 AM PST 6.75 579 0 Normal
02/13/2026 06 AM PST 6.75 579 0 Normal
02/13/2026 07 AM PST 6.75 579 0 Normal
02/13/2026 08 AM PST 6.75 579 0 Normal
02/13/2026 09 AM PST 6.74 574 - Normal
02/13/2026 10 AM PST 6.74 574 0 Normal
02/13/2026 11 AM PST 6.74 574 0 Normal
02/13/2026 12 PM PST 6.74 574 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
02/13/2026 01 PM PST 6.73 569 Normal
02/13/2026 02 PM PST 6.73 569 0 Normal
02/13/2026 03 PM PST 6.73 569 0 Normal
02/13/2026 04 PM PST 6.72 565 - Normal
02/13/2026 05 PM PST 6.72 565 0 Normal
02/13/2026 06 PM PST 6.72 565 0 Normal
02/13/2026 07 PM PST 6.71 560 - Normal
02/13/2026 08 PM PST 6.71 560 0 Normal
02/13/2026 09 PM PST 6.71 560 0 Normal
02/13/2026 10 PM PST 6.70 555 - Normal
02/13/2026 11 PM PST 6.70 555 0 Normal
02/14/2026 12 AM PST 6.70 555 0 Normal
02/14/2026 01 AM PST 6.69 550 - Normal
02/14/2026 02 AM PST 6.69 550 0 Normal
02/14/2026 03 AM PST 6.69 550 0 Normal
02/14/2026 04 AM PST 6.68 545 - Normal
02/14/2026 05 AM PST 6.68 545 0 Normal
02/14/2026 06 AM PST 6.68 545 0 Normal
02/14/2026 07 AM PST 6.67 541 - Normal
02/14/2026 08 AM PST 6.67 541 0 Normal
02/14/2026 09 AM PST 6.67 541 0 Normal
02/14/2026 10 AM PST 6.67 541 0 Normal
02/14/2026 11 AM PST 6.66 536 - Normal
02/14/2026 12 PM PST 6.66 536 0 Normal
02/14/2026 01 PM PST 6.66 536 0 Normal
02/14/2026 02 PM PST 6.65 531 - Normal
02/14/2026 03 PM PST 6.65 531 0 Normal
02/14/2026 04 PM PST 6.65 531 0 Normal
02/14/2026 05 PM PST 6.64 526 - Normal
02/14/2026 06 PM PST 6.64 526 0 Normal
02/14/2026 07 PM PST 6.64 526 0 Normal
02/14/2026 08 PM PST 6.64 526 0 Normal
02/14/2026 09 PM PST 6.64 526 0 Normal
02/14/2026 10 PM PST 6.64 526 0 Normal
02/14/2026 11 PM PST 6.64 526 0 Normal
02/15/2026 12 AM PST 6.64 526 0 Normal
02/15/2026 01 AM PST 6.65 531 + Normal
02/15/2026 02 AM PST 6.65 531 0 Normal
02/15/2026 03 AM PST 6.65 531 0 Normal
02/15/2026 04 AM PST 6.65 531 0 Normal
02/15/2026 05 AM PST 6.66 536 + Normal
02/15/2026 06 AM PST 6.66 536 0 Normal
02/15/2026 07 AM PST 6.66 536 0 Normal
02/15/2026 08 AM PST 6.66 536 0 Normal
02/15/2026 09 AM PST 6.66 536 0 Normal
02/15/2026 10 AM PST 6.66 536 0 Normal
02/15/2026 11 AM PST 6.65 531 - Normal
02/15/2026 12 PM PST 6.66 536 + Normal
02/15/2026 01 PM PST 6.66 536 0 Normal
02/15/2026 02 PM PST 6.68 545 + Normal
02/15/2026 03 PM PST 6.73 569 + Normal
02/15/2026 04 PM PST 6.88 645 + Normal
02/15/2026 05 PM PST 7.09 760 + Normal
02/15/2026 06 PM PST 7.33 904 + Normal
02/15/2026 07 PM PST 7.59 1074 + Normal
02/15/2026 08 PM PST 7.89 1291 + Normal
02/15/2026 09 PM PST 8.12 1475 + Normal
02/15/2026 10 PM PST 8.30 1632 + Normal
02/15/2026 11 PM PST 8.45 1767 + Normal
02/16/2026 12 AM PST 8.56 1870 + Normal
02/16/2026 01 AM PST 8.64 1946 + Normal
02/16/2026 02 AM PST 8.70 2005 + Normal
02/16/2026 03 AM PST 8.73 2034 + Normal
02/16/2026 04 AM PST 8.75 2054 + Normal
02/16/2026 05 AM PST 8.77 2073 + Normal
02/16/2026 06 AM PST 8.77 2073 0 Normal
02/16/2026 07 AM PST 8.77 2073 0 Normal
02/16/2026 08 AM PST 8.77 2073 0 Normal
02/16/2026 09 AM PST 8.76 2064 - Normal
02/16/2026 10 AM PST 8.75 2054 - Normal
02/16/2026 11 AM PST 8.74 2044 - Normal
02/16/2026 12 PM PST 8.73 2034 - Normal
02/16/2026 01 PM PST 8.72 2024 - Normal
02/16/2026 02 PM PST 8.72 2024 0 Normal
02/16/2026 03 PM PST 8.72 2024 0 Normal
02/16/2026 04 PM PST 8.73 2034 + Normal
02/16/2026 05 PM PST 8.74 2044 + Normal
02/16/2026 06 PM PST 8.77 2073 + Normal
02/16/2026 07 PM PST 8.80 2103 + Normal
02/16/2026 08 PM PST 8.86 2164 + Normal
02/16/2026 09 PM PST 8.95 2255 + Normal
02/16/2026 10 PM PST 9.06 2370 + Normal
02/16/2026 11 PM PST 9.16 2477 + Normal
02/17/2026 12 AM PST 9.25 2574 + Normal
02/17/2026 01 AM PST 9.33 2663 + Normal
02/17/2026 02 AM PST 9.41 2752 + Normal
02/17/2026 03 AM PST 9.48 2832 + Normal
02/17/2026 04 AM PST 9.56 2924 + Normal
02/17/2026 05 AM PST 9.61 2982 + Normal
02/17/2026 06 AM PST 9.65 3029 + Normal
02/17/2026 07 AM PST 9.68 3065 + Normal
02/17/2026 08 AM PST 9.68 3065 0 Normal
02/17/2026 09 AM PST 9.65 3029 - Normal
02/17/2026 10 AM PST 9.62 2994 - Normal
02/17/2026 11 AM PST 9.58 2947 - Normal
02/17/2026 12 PM PST 9.55 2913 - Normal
02/17/2026 01 PM PST 9.51 2866 - Normal
02/17/2026 02 PM PST 9.47 2820 - Normal
02/17/2026 03 PM PST 9.43 2775 - Normal
02/17/2026 04 PM PST 9.39 2730 - Normal
02/17/2026 05 PM PST 9.35 2685 - Normal
02/17/2026 06 PM PST 9.32 2652 - Normal
02/17/2026 07 PM PST 9.28 2607 - Normal
02/17/2026 08 PM PST 9.24 2563 - Normal
02/17/2026 09 PM PST 9.19 2509 - Normal
02/17/2026 10 PM PST 9.13 2444 - Normal
02/17/2026 11 PM PST 9.09 2402 - Normal
02/18/2026 12 AM PST 9.04 2349 - Normal
02/18/2026 01 AM PST 9.00 2307 - Normal
02/18/2026 02 AM PST 8.97 2276 - Normal
02/18/2026 03 AM PST 8.94 2245 - Normal
02/18/2026 04 AM PST 8.90 2204 - 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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