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MATTOLE RIVER - PETROLIA (MTOC1)
| Latitude: 40.31º N | Longitude: 124.28º W | Elevation: 40 Feet | | | |
| Location: Humboldt County in California | Bulletin Group: North Coast | River Group: North Coast |
| Issuance Time: | Dec 27 2025 at 9:16 AM PST | Next Issuance: | Dec 28 2025 at 9:00 AM PST
| |
| Action/Monitor: N/A | Minor Flood: N/A | Moderate Flood: N/A | Major Flood: N/A |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Mattole River - Petrolia (MTOC1)
#
# File Generation Time: 12/27/2025 at 09:18 AM PST
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 12/26/2025 at 03:00 PM PST
# Maximum Observed Stage: 20.27 Feet
# Maximum Observed Flow: 13965 cfs
#
# Earliest Date & Time of Maximum Forecast: 12/27/2025 at 10:00 AM PST
# Maximum Forecast Stage: 17.49 Feet
# Maximum Forecast Flow: 8136 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
12/22/2025 09 AM PST 19.24 11668 Not Applicable
12/22/2025 10 AM PST 18.96 11079 - Not Applicable
12/22/2025 11 AM PST 18.66 10458 - Not Applicable
12/22/2025 12 PM PST 18.43 9989 - Not Applicable
12/22/2025 01 PM PST 18.22 9566 - Not Applicable
12/22/2025 02 PM PST 17.87 8872 - Not Applicable
12/22/2025 03 PM PST 17.91 8951 + Not Applicable
12/22/2025 04 PM PST 17.69 8521 - Not Applicable
12/22/2025 05 PM PST 17.53 8212 - Not Applicable
12/22/2025 06 PM PST 17.38 7926 - Not Applicable
12/22/2025 07 PM PST 17.28 7736 - Not Applicable
12/22/2025 08 PM PST 17.13 7455 - Not Applicable
12/22/2025 09 PM PST 16.95 7120 - Not Applicable
12/22/2025 10 PM PST 16.82 6882 - Not Applicable
12/22/2025 11 PM PST 16.78 6809 - Not Applicable
12/23/2025 12 AM PST 16.54 6375 - Not Applicable
12/23/2025 01 AM PST 16.50 6304 - Not Applicable
12/23/2025 02 AM PST 16.45 6215 - Not Applicable
12/23/2025 03 AM PST 16.29 5932 - Not Applicable
12/23/2025 04 AM PST 16.26 5880 - Not Applicable
12/23/2025 05 AM PST 16.14 5671 - Not Applicable
12/23/2025 06 AM PST 16.03 5481 - Not Applicable
12/23/2025 07 AM PST 15.94 5327 - Not Applicable
12/23/2025 08 AM PST 15.95 5344 + Not Applicable
12/23/2025 09 AM PST 15.92 5293 - Not Applicable
12/23/2025 10 AM PST 15.89 5242 - Not Applicable
12/23/2025 11 AM PST 15.86 5192 - Not Applicable
12/23/2025 12 PM PST 15.94 5327 + Not Applicable
12/23/2025 01 PM PST 15.84 5158 - Not Applicable
12/23/2025 02 PM PST 15.94 5327 + Not Applicable
12/23/2025 03 PM PST 15.88 5225 - Not Applicable
12/23/2025 04 PM PST 15.88 5225 0 Not Applicable
12/23/2025 05 PM PST 16.03 5481 + Not Applicable
12/23/2025 06 PM PST 16.17 5723 + Not Applicable
12/23/2025 07 PM PST 16.22 5810 + Not Applicable
12/23/2025 08 PM PST 16.19 5758 - Not Applicable
12/23/2025 09 PM PST 16.18 5740 - Not Applicable
12/23/2025 10 PM PST 16.12 5636 - Not Applicable
12/23/2025 11 PM PST 16.12 5636 0 Not Applicable
12/24/2025 12 AM PST 16.28 5915 + Not Applicable
12/24/2025 01 AM PST 16.43 6179 + Not Applicable
12/24/2025 02 AM PST 16.88 6992 + Not Applicable
12/24/2025 03 AM PST 17.22 7623 + Not Applicable
12/24/2025 04 AM PST 17.54 8232 + Not Applicable
12/24/2025 05 AM PST 17.93 8990 + Not Applicable
12/24/2025 06 AM PST 18.55 10233 + Not Applicable
12/24/2025 07 AM PST 18.81 10768 + Not Applicable
12/24/2025 08 AM PST 18.69 10520 - Not Applicable
12/24/2025 09 AM PST 18.84 10830 + Not Applicable
12/24/2025 10 AM PST 19.02 11205 + Not Applicable
12/24/2025 11 AM PST 19.10 11372 + Not Applicable
12/24/2025 12 PM PST 18.97 11100 - Not Applicable
12/24/2025 01 PM PST 18.76 10664 - Not Applicable
12/24/2025 02 PM PST 18.58 10294 - Not Applicable
12/24/2025 03 PM PST 18.26 9646 - Not Applicable
12/24/2025 04 PM PST 18.10 9327 - Not Applicable
12/24/2025 05 PM PST 18.09 9307 - Not Applicable
12/24/2025 06 PM PST 17.83 8794 - Not Applicable
12/24/2025 07 PM PST 17.55 8251 - Not Applicable
12/24/2025 08 PM PST 17.54 8232 - Not Applicable
12/24/2025 09 PM PST 17.45 8059 - Not Applicable
12/24/2025 10 PM PST 17.29 7755 - Not Applicable
12/24/2025 11 PM PST 17.31 7793 + Not Applicable
12/25/2025 12 AM PST 17.17 7529 - Not Applicable
12/25/2025 01 AM PST 17.08 7361 - Not Applicable
12/25/2025 02 AM PST 17.01 7231 - Not Applicable
12/25/2025 03 AM PST 16.99 7194 - Not Applicable
12/25/2025 04 AM PST 16.94 7102 - Not Applicable
12/25/2025 05 AM PST 16.89 7010 - Not Applicable
12/25/2025 06 AM PST 16.88 6992 - Not Applicable
12/25/2025 07 AM PST 16.70 6663 - Not Applicable
12/25/2025 08 AM PST 16.75 6754 + Not Applicable
12/25/2025 09 AM PST 16.79 6827 + Not Applicable
12/25/2025 10 AM PST 16.82 6882 + Not Applicable
12/25/2025 11 AM PST 16.79 6827 - Not Applicable
12/25/2025 12 PM PST 16.75 6754 - Not Applicable
12/25/2025 01 PM PST 16.64 6555 - Not Applicable
12/25/2025 02 PM PST 16.58 6447 - Not Applicable
12/25/2025 03 PM PST 16.59 6465 + Not Applicable
12/25/2025 04 PM PST 16.60 6483 + Not Applicable
12/25/2025 05 PM PST 16.61 6501 + Not Applicable
12/25/2025 06 PM PST 16.61 6501 0 Not Applicable
12/25/2025 07 PM PST 16.61 6501 0 Not Applicable
12/25/2025 08 PM PST 16.62 6519 + Not Applicable
12/25/2025 09 PM PST 16.75 6754 + Not Applicable
12/25/2025 10 PM PST 16.91 7047 + Not Applicable
12/25/2025 11 PM PST 16.95 7120 + Not Applicable
12/26/2025 12 AM PST 17.10 7399 + Not Applicable
12/26/2025 01 AM PST 17.13 7455 + Not Applicable
12/26/2025 02 AM PST 16.89 7010 - Not Applicable
12/26/2025 03 AM PST 17.17 7529 + Not Applicable
12/26/2025 04 AM PST 17.22 7623 + Not Applicable
12/26/2025 05 AM PST 17.16 7511 - Not Applicable
12/26/2025 06 AM PST 17.51 8174 + Not Applicable
12/26/2025 07 AM PST 17.77 8677 + Not Applicable
12/26/2025 08 AM PST 18.19 9506 + Not Applicable
12/26/2025 09 AM PST 18.72 10582 + Not Applicable
12/26/2025 10 AM PST 19.19 11562 + Not Applicable
12/26/2025 11 AM PST 19.39 11986 + Not Applicable
12/26/2025 12 PM PST 19.62 12479 + Not Applicable
12/26/2025 01 PM PST 19.83 12934 + Not Applicable
12/26/2025 02 PM PST 20.27 13965 + Not Applicable
12/26/2025 03 PM PST 20.27 13965 0 Not Applicable
12/26/2025 04 PM PST 20.21 13818 - Not Applicable
12/26/2025 05 PM PST 19.92 13131 - Not Applicable
12/26/2025 06 PM PST 19.97 13240 + Not Applicable
12/26/2025 07 PM PST 19.86 13000 - Not Applicable
12/26/2025 08 PM PST 19.75 12760 - Not Applicable
12/26/2025 09 PM PST 19.54 12307 - Not Applicable
12/26/2025 10 PM PST 19.42 12050 - Not Applicable
12/26/2025 11 PM PST 19.19 11562 - Not Applicable
12/27/2025 12 AM PST 19.02 11205 - Not Applicable
12/27/2025 01 AM PST 18.81 10768 - Not Applicable
12/27/2025 02 AM PST 18.71 10561 - Not Applicable
12/27/2025 03 AM PST 18.52 10172 - Not Applicable
12/27/2025 04 AM PST 18.36 9848 - Not Applicable
12/27/2025 05 AM PST 18.21 9546 - Not Applicable
12/27/2025 06 AM PST 17.97 9069 - Not Applicable
12/27/2025 07 AM PST 17.84 8813 - Not Applicable
12/27/2025 08 AM PST 17.72 8579 - Not Applicable
12/27/2025 09 AM PST 17.60 8347 - Not Applicable
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
12/27/2025 10 AM PST 17.49 8136 Not Applicable
12/27/2025 11 AM PST 17.38 7926 - Not Applicable
12/27/2025 12 PM PST 17.27 7718 - Not Applicable
12/27/2025 01 PM PST 17.17 7529 - Not Applicable
12/27/2025 02 PM PST 17.07 7343 - Not Applicable
12/27/2025 03 PM PST 16.98 7176 - Not Applicable
12/27/2025 04 PM PST 16.89 7010 - Not Applicable
12/27/2025 05 PM PST 16.81 6863 - Not Applicable
12/27/2025 06 PM PST 16.73 6718 - Not Applicable
12/27/2025 07 PM PST 16.65 6573 - Not Applicable
12/27/2025 08 PM PST 16.57 6429 - Not Applicable
12/27/2025 09 PM PST 16.50 6304 - Not Applicable
12/27/2025 10 PM PST 16.43 6179 - Not Applicable
12/27/2025 11 PM PST 16.36 6055 - Not Applicable
12/28/2025 12 AM PST 16.29 5932 - Not Applicable
12/28/2025 01 AM PST 16.23 5827 - Not Applicable
12/28/2025 02 AM PST 16.17 5723 - Not Applicable
12/28/2025 03 AM PST 16.11 5619 - Not Applicable
12/28/2025 04 AM PST 16.05 5515 - Not Applicable
12/28/2025 05 AM PST 15.99 5413 - Not Applicable
12/28/2025 06 AM PST 15.94 5327 - Not Applicable
12/28/2025 07 AM PST 15.89 5242 - Not Applicable
12/28/2025 08 AM PST 15.84 5158 - Not Applicable
12/28/2025 09 AM PST 15.80 5090 - Not Applicable
12/28/2025 10 AM PST 15.75 5007 - Not Applicable
12/28/2025 11 AM PST 15.71 4940 - Not Applicable
12/28/2025 12 PM PST 15.66 4857 - Not Applicable
12/28/2025 01 PM PST 15.62 4790 - Not Applicable
12/28/2025 02 PM PST 15.58 4724 - Not Applicable
12/28/2025 03 PM PST 15.54 4659 - Not Applicable
12/28/2025 04 PM PST 15.50 4593 - Not Applicable
12/28/2025 05 PM PST 15.46 4528 - Not Applicable
12/28/2025 06 PM PST 15.43 4479 - Not Applicable
12/28/2025 07 PM PST 15.39 4414 - Not Applicable
12/28/2025 08 PM PST 15.35 4350 - Not Applicable
12/28/2025 09 PM PST 15.32 4302 - Not Applicable
12/28/2025 10 PM PST 15.29 4254 - Not Applicable
12/28/2025 11 PM PST 15.26 4206 - Not Applicable
12/29/2025 12 AM PST 15.23 4158 - Not Applicable
12/29/2025 01 AM PST 15.20 4110 - Not Applicable
12/29/2025 02 AM PST 15.16 4047 - Not Applicable
12/29/2025 03 AM PST 15.13 4000 - Not Applicable
12/29/2025 04 AM PST 15.10 3953 - Not Applicable
12/29/2025 05 AM PST 15.07 3906 - Not Applicable
12/29/2025 06 AM PST 15.05 3875 - Not Applicable
12/29/2025 07 AM PST 15.02 3828 - Not Applicable
12/29/2025 08 AM PST 14.99 3781 - Not Applicable
12/29/2025 09 AM PST 14.96 3735 - Not Applicable
12/29/2025 10 AM PST 14.94 3704 - Not Applicable
12/29/2025 11 AM PST 14.91 3658 - Not Applicable
12/29/2025 12 PM PST 14.88 3612 - Not Applicable
12/29/2025 01 PM PST 14.86 3582 - Not Applicable
12/29/2025 02 PM PST 14.84 3551 - Not Applicable
12/29/2025 03 PM PST 14.81 3506 - Not Applicable
12/29/2025 04 PM PST 14.79 3475 - Not Applicable
12/29/2025 05 PM PST 14.77 3445 - Not Applicable
12/29/2025 06 PM PST 14.74 3400 - Not Applicable
12/29/2025 07 PM PST 14.72 3370 - Not Applicable
12/29/2025 08 PM PST 14.70 3340 - Not Applicable
12/29/2025 09 PM PST 14.68 3310 - Not Applicable
12/29/2025 10 PM PST 14.65 3265 - Not Applicable
12/29/2025 11 PM PST 14.63 3236 - Not Applicable
12/30/2025 12 AM PST 14.61 3206 - Not Applicable
12/30/2025 01 AM PST 14.59 3177 - Not Applicable
12/30/2025 02 AM PST 14.57 3147 - Not Applicable
12/30/2025 03 AM PST 14.55 3118 - Not Applicable
12/30/2025 04 AM PST 14.53 3088 - Not Applicable
12/30/2025 05 AM PST 14.51 3059 - Not Applicable
12/30/2025 06 AM PST 14.50 3045 - Not Applicable
12/30/2025 07 AM PST 14.48 3016 - Not Applicable
12/30/2025 08 AM PST 14.46 2986 - Not Applicable
12/30/2025 09 AM PST 14.44 2958 - Not Applicable
12/30/2025 10 AM PST 14.42 2929 - Not Applicable
12/30/2025 11 AM PST 14.41 2914 - Not Applicable
12/30/2025 12 PM PST 14.39 2885 - Not Applicable
12/30/2025 01 PM PST 14.37 2857 - Not Applicable
12/30/2025 02 PM PST 14.36 2842 - Not Applicable
12/30/2025 03 PM PST 14.34 2814 - Not Applicable
12/30/2025 04 PM PST 14.33 2800 - Not Applicable
12/30/2025 05 PM PST 14.31 2771 - Not Applicable
12/30/2025 06 PM PST 14.30 2757 - Not Applicable
12/30/2025 07 PM PST 14.28 2729 - Not Applicable
12/30/2025 08 PM PST 14.27 2715 - Not Applicable
12/30/2025 09 PM PST 14.26 2700 - Not Applicable
12/30/2025 10 PM PST 14.24 2672 - Not Applicable
12/30/2025 11 PM PST 14.23 2658 - Not Applicable
12/31/2025 12 AM PST 14.21 2630 - Not Applicable
12/31/2025 01 AM PST 14.20 2616 - Not Applicable
12/31/2025 02 AM PST 14.18 2588 - Not Applicable
12/31/2025 03 AM PST 14.17 2574 - Not Applicable
12/31/2025 04 AM PST 14.16 2560 - Not Applicable
12/31/2025 05 AM PST 14.14 2533 - Not Applicable
12/31/2025 06 AM PST 14.13 2519 - Not Applicable
12/31/2025 07 AM PST 14.12 2505 - Not Applicable
12/31/2025 08 AM PST 14.10 2478 - Not Applicable
12/31/2025 09 AM PST 14.09 2464 - Not Applicable
12/31/2025 10 AM PST 14.07 2436 - Not Applicable
12/31/2025 11 AM PST 14.06 2423 - Not Applicable
12/31/2025 12 PM PST 14.05 2409 - Not Applicable
12/31/2025 01 PM PST 14.04 2395 - Not Applicable
12/31/2025 02 PM PST 14.03 2382 - Not Applicable
12/31/2025 03 PM PST 14.01 2354 - Not Applicable
12/31/2025 04 PM PST 14.00 2341 - Not Applicable
12/31/2025 05 PM PST 13.99 2327 - Not Applicable
12/31/2025 06 PM PST 13.98 2314 - Not Applicable
12/31/2025 07 PM PST 13.96 2287 - Not Applicable
12/31/2025 08 PM PST 13.95 2273 - Not Applicable
12/31/2025 09 PM PST 13.94 2260 - Not Applicable
12/31/2025 10 PM PST 13.93 2247 - Not Applicable
12/31/2025 11 PM PST 13.92 2233 - Not Applicable
01/01/2026 12 AM PST 13.91 2220 - Not Applicable
01/01/2026 01 AM PST 13.90 2206 - Not Applicable
01/01/2026 02 AM PST 13.88 2180 - Not Applicable
01/01/2026 03 AM PST 13.87 2167 - Not Applicable
01/01/2026 04 AM PST 13.86 2153 - 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.
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