REDWOOD CREEK - BLUE LAKE (BLKC1)
Latitude: 40.91º NLongitude: 123.81º WElevation: 850 FeetForecast Type: Unofficial Location
Location: Humboldt County in CalforniaBulletin Group: North CoastRiver Group: North Coast
Issuance Time: Apr 19 2026 at 7:10 AM PDTNext Issuance: Apr 20 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: Redwood Creek - Blue Lake (BLKC1)
#
# File Generation Time:  04/19/2026 at 07:12 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/15/2026 at 11:00 PM PDT
# Maximum Observed Stage:                       2.22 Feet
# Maximum Observed Flow:                        160 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/21/2026 at 11:00 PM PDT
# Maximum Forecast Stage:                       2.95 Feet
# Maximum Forecast Flow:                        360 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/14/2026 07 AM PDT            2.02            120                Not Applicable
  04/14/2026 08 AM PDT            2.02            120         0      Not Applicable
  04/14/2026 09 AM PDT            2.02            120         0      Not Applicable
  04/14/2026 10 AM PDT            2.01            118         -      Not Applicable
  04/14/2026 11 AM PDT            2.01            118         0      Not Applicable
  04/14/2026 12 PM PDT            2.01            118         0      Not Applicable
  04/14/2026 01 PM PDT            2.01            118         0      Not Applicable
  04/14/2026 02 PM PDT            2.00            116         -      Not Applicable
  04/14/2026 03 PM PDT            2.00            116         0      Not Applicable
  04/14/2026 04 PM PDT            2.00            116         0      Not Applicable
  04/14/2026 05 PM PDT            1.99            114         -      Not Applicable
  04/14/2026 06 PM PDT            1.98            112         -      Not Applicable
  04/14/2026 07 PM PDT            1.98            112         0      Not Applicable
  04/14/2026 08 PM PDT            1.97            110         -      Not Applicable
  04/14/2026 09 PM PDT            1.97            110         0      Not Applicable
  04/14/2026 10 PM PDT            1.97            110         0      Not Applicable
  04/14/2026 11 PM PDT            1.96            109         -      Not Applicable
  04/15/2026 12 AM PDT            1.96            109         0      Not Applicable
  04/15/2026 01 AM PDT            1.95            107         -      Not Applicable
  04/15/2026 02 AM PDT            1.95            107         0      Not Applicable
  04/15/2026 03 AM PDT            1.95            107         0      Not Applicable
  04/15/2026 04 AM PDT            1.95            107         0      Not Applicable
  04/15/2026 05 AM PDT            1.95            107         0      Not Applicable
  04/15/2026 06 AM PDT            1.94            105         -      Not Applicable
  04/15/2026 07 AM PDT            1.94            105         0      Not Applicable
  04/15/2026 08 AM PDT            1.94            105         0      Not Applicable
  04/15/2026 09 AM PDT            1.94            105         0      Not Applicable
  04/15/2026 10 AM PDT            1.94            105         0      Not Applicable
  04/15/2026 11 AM PDT            1.95            107         +      Not Applicable
  04/15/2026 12 PM PDT            1.96            109         +      Not Applicable
  04/15/2026 01 PM PDT            1.97            110         +      Not Applicable
  04/15/2026 02 PM PDT            1.99            114         +      Not Applicable
  04/15/2026 03 PM PDT            2.01            118         +      Not Applicable
  04/15/2026 04 PM PDT            2.05            125         +      Not Applicable
  04/15/2026 05 PM PDT            2.08            131         +      Not Applicable
  04/15/2026 06 PM PDT            2.12            139         +      Not Applicable
  04/15/2026 07 PM PDT            2.14            143         +      Not Applicable
  04/15/2026 08 PM PDT            2.17            149         +      Not Applicable
  04/15/2026 09 PM PDT            2.19            153         +      Not Applicable
  04/15/2026 10 PM PDT            2.21            158         +      Not Applicable
  04/15/2026 11 PM PDT            2.22            160         +      Not Applicable
  04/16/2026 12 AM PDT            2.21            158         -      Not Applicable
  04/16/2026 01 AM PDT            2.21            158         0      Not Applicable
  04/16/2026 02 AM PDT            2.20            155         -      Not Applicable
  04/16/2026 03 AM PDT            2.19            153         -      Not Applicable
  04/16/2026 04 AM PDT            2.18            151         -      Not Applicable
  04/16/2026 05 AM PDT            2.17            149         -      Not Applicable
  04/16/2026 06 AM PDT            2.15            145         -      Not Applicable
  04/16/2026 07 AM PDT            2.15            145         0      Not Applicable
  04/16/2026 08 AM PDT            2.13            141         -      Not Applicable
  04/16/2026 09 AM PDT            2.13            141         0      Not Applicable
  04/16/2026 10 AM PDT            2.12            139         -      Not Applicable
  04/16/2026 11 AM PDT            2.11            137         -      Not Applicable
  04/16/2026 12 PM PDT            2.11            137         0      Not Applicable
  04/16/2026 01 PM PDT            2.11            137         0      Not Applicable
  04/16/2026 02 PM PDT            2.10            135         -      Not Applicable
  04/16/2026 03 PM PDT            2.09            133         -      Not Applicable
  04/16/2026 04 PM PDT            2.08            131         -      Not Applicable
  04/16/2026 05 PM PDT            2.08            131         0      Not Applicable
  04/16/2026 06 PM PDT            2.07            129         -      Not Applicable
  04/16/2026 07 PM PDT            2.06            127         -      Not Applicable
  04/16/2026 08 PM PDT            2.05            125         -      Not Applicable
  04/16/2026 09 PM PDT            2.05            125         0      Not Applicable
  04/16/2026 10 PM PDT            2.04            123         -      Not Applicable
  04/16/2026 11 PM PDT            2.03            121         -      Not Applicable
  04/17/2026 12 AM PDT            2.03            121         0      Not Applicable
  04/17/2026 01 AM PDT            2.02            120         -      Not Applicable
  04/17/2026 02 AM PDT            2.02            120         0      Not Applicable
  04/17/2026 03 AM PDT            2.01            118         -      Not Applicable
  04/17/2026 04 AM PDT            2.01            118         0      Not Applicable
  04/17/2026 05 AM PDT            2.01            118         0      Not Applicable
  04/17/2026 06 AM PDT            2.01            118         0      Not Applicable
  04/17/2026 07 AM PDT            2.00            116         -      Not Applicable
  04/17/2026 08 AM PDT            2.00            116         0      Not Applicable
  04/17/2026 09 AM PDT            2.00            116         0      Not Applicable
  04/17/2026 10 AM PDT            2.00            116         0      Not Applicable
  04/17/2026 11 AM PDT            2.00            116         0      Not Applicable
  04/17/2026 12 PM PDT            2.00            116         0      Not Applicable
  04/17/2026 01 PM PDT            2.00            116         0      Not Applicable
  04/17/2026 02 PM PDT            1.99            114         -      Not Applicable
  04/17/2026 03 PM PDT            1.99            114         0      Not Applicable
  04/17/2026 04 PM PDT            1.99            114         0      Not Applicable
  04/17/2026 05 PM PDT            1.98            112         -      Not Applicable
  04/17/2026 06 PM PDT            1.98            112         0      Not Applicable
  04/17/2026 07 PM PDT            1.97            110         -      Not Applicable
  04/17/2026 08 PM PDT            1.97            110         0      Not Applicable
  04/17/2026 09 PM PDT            1.96            109         -      Not Applicable
  04/17/2026 10 PM PDT            1.95            107         -      Not Applicable
  04/17/2026 11 PM PDT            1.95            107         0      Not Applicable
  04/18/2026 12 AM PDT            1.95            107         0      Not Applicable
  04/18/2026 01 AM PDT            1.94            105         -      Not Applicable
  04/18/2026 02 AM PDT            1.94            105         0      Not Applicable
  04/18/2026 03 AM PDT            1.94            105         0      Not Applicable
  04/18/2026 04 AM PDT            1.93            103         -      Not Applicable
  04/18/2026 05 AM PDT            1.93            103         0      Not Applicable
  04/18/2026 06 AM PDT            1.93            103         0      Not Applicable
  04/18/2026 07 AM PDT            1.93            103         0      Not Applicable
  04/18/2026 08 AM PDT            1.92            101         -      Not Applicable
  04/18/2026 09 AM PDT            1.92            101         0      Not Applicable
  04/18/2026 10 AM PDT            1.93            103         +      Not Applicable
  04/18/2026 11 AM PDT            1.93            103         0      Not Applicable
  04/18/2026 12 PM PDT            1.93            103         0      Not Applicable
  04/18/2026 01 PM PDT            1.93            103         0      Not Applicable
  04/18/2026 02 PM PDT            1.93            103         0      Not Applicable
  04/18/2026 03 PM PDT            1.92            101         -      Not Applicable
  04/18/2026 04 PM PDT            1.92            101         0      Not Applicable
  04/18/2026 05 PM PDT            1.91            100         -      Not Applicable
  04/18/2026 06 PM PDT            1.91            100         0      Not Applicable
  04/18/2026 07 PM PDT            1.90             98         -      Not Applicable
  04/18/2026 08 PM PDT            1.90             98         0      Not Applicable
  04/18/2026 09 PM PDT            1.90             98         0      Not Applicable
  04/18/2026 10 PM PDT            1.89             96         -      Not Applicable
  04/18/2026 11 PM PDT            1.89             96         0      Not Applicable
  04/19/2026 12 AM PDT            1.88             95         -      Not Applicable
  04/19/2026 01 AM PDT            1.88             95         0      Not Applicable
  04/19/2026 02 AM PDT            1.88             95         0      Not Applicable
  04/19/2026 03 AM PDT            1.88             95         0      Not Applicable
  04/19/2026 04 AM PDT            1.88             95         0      Not Applicable
  04/19/2026 05 AM PDT            1.88             95         0      Not Applicable
  04/19/2026 06 AM PDT            1.88             95         0      Not Applicable
  04/19/2026 07 AM PDT            1.88             95         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/19/2026 08 AM PDT            1.88             95                Not Applicable
  04/19/2026 09 AM PDT            1.87             93         -      Not Applicable
  04/19/2026 10 AM PDT            1.87             93         0      Not Applicable
  04/19/2026 11 AM PDT            1.87             93         0      Not Applicable
  04/19/2026 12 PM PDT            1.87             93         0      Not Applicable
  04/19/2026 01 PM PDT            1.87             93         0      Not Applicable
  04/19/2026 02 PM PDT            1.87             93         0      Not Applicable
  04/19/2026 03 PM PDT            1.86             91         -      Not Applicable
  04/19/2026 04 PM PDT            1.86             91         0      Not Applicable
  04/19/2026 05 PM PDT            1.86             91         0      Not Applicable
  04/19/2026 06 PM PDT            1.86             91         0      Not Applicable
  04/19/2026 07 PM PDT            1.86             91         0      Not Applicable
  04/19/2026 08 PM PDT            1.86             91         0      Not Applicable
  04/19/2026 09 PM PDT            1.86             91         0      Not Applicable
  04/19/2026 10 PM PDT            1.85             90         -      Not Applicable
  04/19/2026 11 PM PDT            1.85             90         0      Not Applicable
  04/20/2026 12 AM PDT            1.85             90         0      Not Applicable
  04/20/2026 01 AM PDT            1.86             91         +      Not Applicable
  04/20/2026 02 AM PDT            1.86             91         0      Not Applicable
  04/20/2026 03 AM PDT            1.87             93         +      Not Applicable
  04/20/2026 04 AM PDT            1.88             95         +      Not Applicable
  04/20/2026 05 AM PDT            1.88             95         0      Not Applicable
  04/20/2026 06 AM PDT            1.89             96         +      Not Applicable
  04/20/2026 07 AM PDT            1.91            100         +      Not Applicable
  04/20/2026 08 AM PDT            1.95            107         +      Not Applicable
  04/20/2026 09 AM PDT            2.01            118         +      Not Applicable
  04/20/2026 10 AM PDT            2.06            127         +      Not Applicable
  04/20/2026 11 AM PDT            2.10            135         +      Not Applicable
  04/20/2026 12 PM PDT            2.15            145         +      Not Applicable
  04/20/2026 01 PM PDT            2.22            160         +      Not Applicable
  04/20/2026 02 PM PDT            2.36            192         +      Not Applicable
  04/20/2026 03 PM PDT            2.56            243         +      Not Applicable
  04/20/2026 04 PM PDT            2.72            288         +      Not Applicable
  04/20/2026 05 PM PDT            2.83            321         +      Not Applicable
  04/20/2026 06 PM PDT            2.89            340         +      Not Applicable
  04/20/2026 07 PM PDT            2.92            350         +      Not Applicable
  04/20/2026 08 PM PDT            2.91            347         -      Not Applicable
  04/20/2026 09 PM PDT            2.86            331         -      Not Applicable
  04/20/2026 10 PM PDT            2.80            312         -      Not Applicable
  04/20/2026 11 PM PDT            2.76            300         -      Not Applicable
  04/21/2026 12 AM PDT            2.72            288         -      Not Applicable
  04/21/2026 01 AM PDT            2.69            279         -      Not Applicable
  04/21/2026 02 AM PDT            2.65            268         -      Not Applicable
  04/21/2026 03 AM PDT            2.60            253         -      Not Applicable
  04/21/2026 04 AM PDT            2.56            243         -      Not Applicable
  04/21/2026 05 AM PDT            2.53            235         -      Not Applicable
  04/21/2026 06 AM PDT            2.51            229         -      Not Applicable
  04/21/2026 07 AM PDT            2.50            227         -      Not Applicable
  04/21/2026 08 AM PDT            2.49            224         -      Not Applicable
  04/21/2026 09 AM PDT            2.50            227         +      Not Applicable
  04/21/2026 10 AM PDT            2.51            229         +      Not Applicable
  04/21/2026 11 AM PDT            2.51            229         0      Not Applicable
  04/21/2026 12 PM PDT            2.53            235         +      Not Applicable
  04/21/2026 01 PM PDT            2.55            240         +      Not Applicable
  04/21/2026 02 PM PDT            2.60            253         +      Not Applicable
  04/21/2026 03 PM PDT            2.68            276         +      Not Applicable
  04/21/2026 04 PM PDT            2.75            297         +      Not Applicable
  04/21/2026 05 PM PDT            2.80            312         +      Not Applicable
  04/21/2026 06 PM PDT            2.84            324         +      Not Applicable
  04/21/2026 07 PM PDT            2.86            331         +      Not Applicable
  04/21/2026 08 PM PDT            2.89            340         +      Not Applicable
  04/21/2026 09 PM PDT            2.92            350         +      Not Applicable
  04/21/2026 10 PM PDT            2.93            354         +      Not Applicable
  04/21/2026 11 PM PDT            2.95            360         +      Not Applicable
  04/22/2026 12 AM PDT            2.95            360         0      Not Applicable
  04/22/2026 01 AM PDT            2.95            360         0      Not Applicable
  04/22/2026 02 AM PDT            2.93            354         -      Not Applicable
  04/22/2026 03 AM PDT            2.88            337         -      Not Applicable
  04/22/2026 04 AM PDT            2.85            328         -      Not Applicable
  04/22/2026 05 AM PDT            2.82            318         -      Not Applicable
  04/22/2026 06 AM PDT            2.79            309         -      Not Applicable
  04/22/2026 07 AM PDT            2.78            306         -      Not Applicable
  04/22/2026 08 AM PDT            2.77            303         -      Not Applicable
  04/22/2026 09 AM PDT            2.76            300         -      Not Applicable
  04/22/2026 10 AM PDT            2.75            297         -      Not Applicable
  04/22/2026 11 AM PDT            2.75            297         0      Not Applicable
  04/22/2026 12 PM PDT            2.75            297         0      Not Applicable
  04/22/2026 01 PM PDT            2.74            294         -      Not Applicable
  04/22/2026 02 PM PDT            2.74            294         0      Not Applicable
  04/22/2026 03 PM PDT            2.74            294         0      Not Applicable
  04/22/2026 04 PM PDT            2.73            291         -      Not Applicable
  04/22/2026 05 PM PDT            2.73            291         0      Not Applicable
  04/22/2026 06 PM PDT            2.73            291         0      Not Applicable
  04/22/2026 07 PM PDT            2.73            291         0      Not Applicable
  04/22/2026 08 PM PDT            2.72            288         -      Not Applicable
  04/22/2026 09 PM PDT            2.71            285         -      Not Applicable
  04/22/2026 10 PM PDT            2.70            282         -      Not Applicable
  04/22/2026 11 PM PDT            2.69            279         -      Not Applicable
  04/23/2026 12 AM PDT            2.68            276         -      Not Applicable
  04/23/2026 01 AM PDT            2.68            276         0      Not Applicable
  04/23/2026 02 AM PDT            2.67            273         -      Not Applicable
  04/23/2026 03 AM PDT            2.66            270         -      Not Applicable
  04/23/2026 04 AM PDT            2.65            268         -      Not Applicable
  04/23/2026 05 AM PDT            2.64            265         -      Not Applicable
  04/23/2026 06 AM PDT            2.63            262         -      Not Applicable
  04/23/2026 07 AM PDT            2.63            262         0      Not Applicable
  04/23/2026 08 AM PDT            2.62            259         -      Not Applicable
  04/23/2026 09 AM PDT            2.61            256         -      Not Applicable
  04/23/2026 10 AM PDT            2.60            253         -      Not Applicable
  04/23/2026 11 AM PDT            2.59            251         -      Not Applicable
  04/23/2026 12 PM PDT            2.58            248         -      Not Applicable
  04/23/2026 01 PM PDT            2.58            248         0      Not Applicable
  04/23/2026 02 PM PDT            2.57            245         -      Not Applicable
  04/23/2026 03 PM PDT            2.56            243         -      Not Applicable
  04/23/2026 04 PM PDT            2.55            240         -      Not Applicable
  04/23/2026 05 PM PDT            2.54            237         -      Not Applicable
  04/23/2026 06 PM PDT            2.53            235         -      Not Applicable
  04/23/2026 07 PM PDT            2.53            235         0      Not Applicable
  04/23/2026 08 PM PDT            2.52            232         -      Not Applicable
  04/23/2026 09 PM PDT            2.51            229         -      Not Applicable
  04/23/2026 10 PM PDT            2.50            227         -      Not Applicable
  04/23/2026 11 PM PDT            2.49            224         -      Not Applicable
  04/24/2026 12 AM PDT            2.49            224         0      Not Applicable
  04/24/2026 01 AM PDT            2.48            221         -      Not Applicable
  04/24/2026 02 AM PDT            2.48            221         0      Not Applicable
  04/24/2026 03 AM PDT            2.46            216         -      Not Applicable
  04/24/2026 04 AM PDT            2.46            216         0      Not Applicable
  04/24/2026 05 AM PDT            2.45            214         -      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.