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 26 2026 at 8:30 AM PDTNext Issuance: Apr 27 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:  04/26/2026 at 08:32 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/22/2026 at 12:00 AM PDT
# Maximum Observed Stage:                       2.80 Feet
# Maximum Observed Flow:                        312 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/26/2026 at 09:00 AM PDT
# Maximum Forecast Stage:                       2.05 Feet
# Maximum Forecast Flow:                        125 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/21/2026 08 AM PDT            2.57            245                Not Applicable
  04/21/2026 09 AM PDT            2.54            237         -      Not Applicable
  04/21/2026 10 AM PDT            2.52            232         -      Not Applicable
  04/21/2026 11 AM PDT            2.50            227         -      Not Applicable
  04/21/2026 12 PM PDT            2.47            219         -      Not Applicable
  04/21/2026 01 PM PDT            2.47            219         0      Not Applicable
  04/21/2026 02 PM PDT            2.46            216         -      Not Applicable
  04/21/2026 03 PM PDT            2.45            214         -      Not Applicable
  04/21/2026 04 PM PDT            2.45            214         0      Not Applicable
  04/21/2026 05 PM PDT            2.45            214         0      Not Applicable
  04/21/2026 06 PM PDT            2.48            221         +      Not Applicable
  04/21/2026 07 PM PDT            2.52            232         +      Not Applicable
  04/21/2026 08 PM PDT            2.57            245         +      Not Applicable
  04/21/2026 09 PM PDT            2.66            270         +      Not Applicable
  04/21/2026 10 PM PDT            2.74            294         +      Not Applicable
  04/21/2026 11 PM PDT            2.77            303         +      Not Applicable
  04/22/2026 12 AM PDT            2.80            312         +      Not Applicable
  04/22/2026 01 AM PDT            2.79            309         -      Not Applicable
  04/22/2026 02 AM PDT            2.77            303         -      Not Applicable
  04/22/2026 03 AM PDT            2.75            297         -      Not Applicable
  04/22/2026 04 AM PDT            2.73            291         -      Not Applicable
  04/22/2026 05 AM PDT            2.71            285         -      Not Applicable
  04/22/2026 06 AM PDT            2.69            279         -      Not Applicable
  04/22/2026 07 AM PDT            2.67            273         -      Not Applicable
  04/22/2026 08 AM PDT            2.65            268         -      Not Applicable
  04/22/2026 09 AM PDT            2.63            262         -      Not Applicable
  04/22/2026 10 AM PDT            2.61            256         -      Not Applicable
  04/22/2026 11 AM PDT            2.60            253         -      Not Applicable
  04/22/2026 12 PM PDT            2.59            251         -      Not Applicable
  04/22/2026 01 PM PDT            2.57            245         -      Not Applicable
  04/22/2026 02 PM PDT            2.55            240         -      Not Applicable
  04/22/2026 03 PM PDT            2.54            237         -      Not Applicable
  04/22/2026 04 PM PDT            2.52            232         -      Not Applicable
  04/22/2026 05 PM PDT            2.51            229         -      Not Applicable
  04/22/2026 06 PM PDT            2.50            227         -      Not Applicable
  04/22/2026 07 PM PDT            2.48            221         -      Not Applicable
  04/22/2026 08 PM PDT            2.47            219         -      Not Applicable
  04/22/2026 09 PM PDT            2.46            216         -      Not Applicable
  04/22/2026 10 PM PDT            2.45            214         -      Not Applicable
  04/22/2026 11 PM PDT            2.43            209         -      Not Applicable
  04/23/2026 12 AM PDT            2.43            209         0      Not Applicable
  04/23/2026 01 AM PDT            2.42            206         -      Not Applicable
  04/23/2026 02 AM PDT            2.41            204         -      Not Applicable
  04/23/2026 03 AM PDT            2.40            201         -      Not Applicable
  04/23/2026 04 AM PDT            2.40            201         0      Not Applicable
  04/23/2026 05 AM PDT            2.39            199         -      Not Applicable
  04/23/2026 06 AM PDT            2.38            196         -      Not Applicable
  04/23/2026 07 AM PDT            2.38            196         0      Not Applicable
  04/23/2026 08 AM PDT            2.37            194         -      Not Applicable
  04/23/2026 09 AM PDT            2.35            189         -      Not Applicable
  04/23/2026 10 AM PDT            2.36            192         +      Not Applicable
  04/23/2026 11 AM PDT            2.35            189         -      Not Applicable
  04/23/2026 12 PM PDT            2.35            189         0      Not Applicable
  04/23/2026 01 PM PDT            2.35            189         0      Not Applicable
  04/23/2026 02 PM PDT            2.34            187         -      Not Applicable
  04/23/2026 03 PM PDT            2.33            185         -      Not Applicable
  04/23/2026 04 PM PDT            2.32            182         -      Not Applicable
  04/23/2026 05 PM PDT            2.32            182         0      Not Applicable
  04/23/2026 06 PM PDT            2.31            180         -      Not Applicable
  04/23/2026 07 PM PDT            2.30            178         -      Not Applicable
  04/23/2026 08 PM PDT            2.29            175         -      Not Applicable
  04/23/2026 09 PM PDT            2.28            173         -      Not Applicable
  04/23/2026 10 PM PDT            2.27            171         -      Not Applicable
  04/23/2026 11 PM PDT            2.27            171         0      Not Applicable
  04/24/2026 12 AM PDT            2.27            171         0      Not Applicable
  04/24/2026 01 AM PDT            2.26            169         -      Not Applicable
  04/24/2026 02 AM PDT            2.26            169         0      Not Applicable
  04/24/2026 03 AM PDT            2.25            166         -      Not Applicable
  04/24/2026 04 AM PDT            2.25            166         0      Not Applicable
  04/24/2026 05 AM PDT            2.24            164         -      Not Applicable
  04/24/2026 06 AM PDT            2.24            164         0      Not Applicable
  04/24/2026 07 AM PDT            2.24            164         0      Not Applicable
  04/24/2026 08 AM PDT            2.23            162         -      Not Applicable
  04/24/2026 09 AM PDT            2.23            162         0      Not Applicable
  04/24/2026 10 AM PDT            2.22            160         -      Not Applicable
  04/24/2026 11 AM PDT            2.22            160         0      Not Applicable
  04/24/2026 12 PM PDT            2.23            162         +      Not Applicable
  04/24/2026 01 PM PDT            2.22            160         -      Not Applicable
  04/24/2026 02 PM PDT            2.22            160         0      Not Applicable
  04/24/2026 03 PM PDT            2.21            158         -      Not Applicable
  04/24/2026 04 PM PDT            2.20            155         -      Not Applicable
  04/24/2026 05 PM PDT            2.20            155         0      Not Applicable
  04/24/2026 06 PM PDT            2.19            153         -      Not Applicable
  04/24/2026 07 PM PDT            2.19            153         0      Not Applicable
  04/24/2026 08 PM PDT            2.18            151         -      Not Applicable
  04/24/2026 09 PM PDT            2.17            149         -      Not Applicable
  04/24/2026 10 PM PDT            2.16            147         -      Not Applicable
  04/24/2026 11 PM PDT            2.16            147         0      Not Applicable
  04/25/2026 12 AM PDT            2.15            145         -      Not Applicable
  04/25/2026 01 AM PDT            2.15            145         0      Not Applicable
  04/25/2026 02 AM PDT            2.15            145         0      Not Applicable
  04/25/2026 03 AM PDT            2.14            143         -      Not Applicable
  04/25/2026 04 AM PDT            2.14            143         0      Not Applicable
  04/25/2026 05 AM PDT            2.14            143         0      Not Applicable
  04/25/2026 06 AM PDT            2.14            143         0      Not Applicable
  04/25/2026 07 AM PDT            2.13            141         -      Not Applicable
  04/25/2026 08 AM PDT            2.13            141         0      Not Applicable
  04/25/2026 09 AM PDT            2.12            139         -      Not Applicable
  04/25/2026 10 AM PDT            2.12            139         0      Not Applicable
  04/25/2026 11 AM PDT            2.13            141         +      Not Applicable
  04/25/2026 12 PM PDT            2.13            141         0      Not Applicable
  04/25/2026 01 PM PDT            2.13            141         0      Not Applicable
  04/25/2026 02 PM PDT            2.12            139         -      Not Applicable
  04/25/2026 03 PM PDT            2.11            137         -      Not Applicable
  04/25/2026 04 PM PDT            2.11            137         0      Not Applicable
  04/25/2026 05 PM PDT            2.10            135         -      Not Applicable
  04/25/2026 06 PM PDT            2.10            135         0      Not Applicable
  04/25/2026 07 PM PDT            2.09            133         -      Not Applicable
  04/25/2026 08 PM PDT            2.09            133         0      Not Applicable
  04/25/2026 09 PM PDT            2.08            131         -      Not Applicable
  04/25/2026 10 PM PDT            2.07            129         -      Not Applicable
  04/25/2026 11 PM PDT            2.07            129         0      Not Applicable
  04/26/2026 12 AM PDT            2.06            127         -      Not Applicable
  04/26/2026 01 AM PDT            2.06            127         0      Not Applicable
  04/26/2026 02 AM PDT            2.06            127         0      Not Applicable
  04/26/2026 03 AM PDT            2.06            127         0      Not Applicable
  04/26/2026 04 AM PDT            2.06            127         0      Not Applicable
  04/26/2026 05 AM PDT            2.06            127         0      Not Applicable
  04/26/2026 06 AM PDT            2.06            127         0      Not Applicable
  04/26/2026 07 AM PDT            2.06            127         0      Not Applicable
  04/26/2026 08 AM PDT            2.06            127         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/26/2026 09 AM PDT            2.05            125                Not Applicable
  04/26/2026 10 AM PDT            2.05            125         0      Not Applicable
  04/26/2026 11 AM PDT            2.05            125         0      Not Applicable
  04/26/2026 12 PM PDT            2.05            125         0      Not Applicable
  04/26/2026 01 PM PDT            2.05            125         0      Not Applicable
  04/26/2026 02 PM PDT            2.05            125         0      Not Applicable
  04/26/2026 03 PM PDT            2.05            125         0      Not Applicable
  04/26/2026 04 PM PDT            2.04            123         -      Not Applicable
  04/26/2026 05 PM PDT            2.04            123         0      Not Applicable
  04/26/2026 06 PM PDT            2.04            123         0      Not Applicable
  04/26/2026 07 PM PDT            2.04            123         0      Not Applicable
  04/26/2026 08 PM PDT            2.04            123         0      Not Applicable
  04/26/2026 09 PM PDT            2.03            121         -      Not Applicable
  04/26/2026 10 PM PDT            2.03            121         0      Not Applicable
  04/26/2026 11 PM PDT            2.03            121         0      Not Applicable
  04/27/2026 12 AM PDT            2.02            120         -      Not Applicable
  04/27/2026 01 AM PDT            2.02            120         0      Not Applicable
  04/27/2026 02 AM PDT            2.02            120         0      Not Applicable
  04/27/2026 03 AM PDT            2.02            120         0      Not Applicable
  04/27/2026 04 AM PDT            2.01            118         -      Not Applicable
  04/27/2026 05 AM PDT            2.01            118         0      Not Applicable
  04/27/2026 06 AM PDT            2.01            118         0      Not Applicable
  04/27/2026 07 AM PDT            2.01            118         0      Not Applicable
  04/27/2026 08 AM PDT            2.00            116         -      Not Applicable
  04/27/2026 09 AM PDT            2.00            116         0      Not Applicable
  04/27/2026 10 AM PDT            2.00            116         0      Not Applicable
  04/27/2026 11 AM PDT            2.00            116         0      Not Applicable
  04/27/2026 12 PM PDT            1.99            114         -      Not Applicable
  04/27/2026 01 PM PDT            1.99            114         0      Not Applicable
  04/27/2026 02 PM PDT            1.99            114         0      Not Applicable
  04/27/2026 03 PM PDT            1.99            114         0      Not Applicable
  04/27/2026 04 PM PDT            1.98            112         -      Not Applicable
  04/27/2026 05 PM PDT            1.98            112         0      Not Applicable
  04/27/2026 06 PM PDT            1.98            112         0      Not Applicable
  04/27/2026 07 PM PDT            1.98            112         0      Not Applicable
  04/27/2026 08 PM PDT            1.98            112         0      Not Applicable
  04/27/2026 09 PM PDT            1.97            110         -      Not Applicable
  04/27/2026 10 PM PDT            1.97            110         0      Not Applicable
  04/27/2026 11 PM PDT            1.97            110         0      Not Applicable
  04/28/2026 12 AM PDT            1.97            110         0      Not Applicable
  04/28/2026 01 AM PDT            1.97            110         0      Not Applicable
  04/28/2026 02 AM PDT            1.96            109         -      Not Applicable
  04/28/2026 03 AM PDT            1.96            109         0      Not Applicable
  04/28/2026 04 AM PDT            1.96            109         0      Not Applicable
  04/28/2026 05 AM PDT            1.96            109         0      Not Applicable
  04/28/2026 06 AM PDT            1.95            107         -      Not Applicable
  04/28/2026 07 AM PDT            1.95            107         0      Not Applicable
  04/28/2026 08 AM PDT            1.95            107         0      Not Applicable
  04/28/2026 09 AM PDT            1.95            107         0      Not Applicable
  04/28/2026 10 AM PDT            1.95            107         0      Not Applicable
  04/28/2026 11 AM PDT            1.94            105         -      Not Applicable
  04/28/2026 12 PM PDT            1.94            105         0      Not Applicable
  04/28/2026 01 PM PDT            1.94            105         0      Not Applicable
  04/28/2026 02 PM PDT            1.94            105         0      Not Applicable
  04/28/2026 03 PM PDT            1.94            105         0      Not Applicable
  04/28/2026 04 PM PDT            1.94            105         0      Not Applicable
  04/28/2026 05 PM PDT            1.93            103         -      Not Applicable
  04/28/2026 06 PM PDT            1.93            103         0      Not Applicable
  04/28/2026 07 PM PDT            1.93            103         0      Not Applicable
  04/28/2026 08 PM PDT            1.93            103         0      Not Applicable
  04/28/2026 09 PM PDT            1.93            103         0      Not Applicable
  04/28/2026 10 PM PDT            1.93            103         0      Not Applicable
  04/28/2026 11 PM PDT            1.92            101         -      Not Applicable
  04/29/2026 12 AM PDT            1.92            101         0      Not Applicable
  04/29/2026 01 AM PDT            1.92            101         0      Not Applicable
  04/29/2026 02 AM PDT            1.92            101         0      Not Applicable
  04/29/2026 03 AM PDT            1.92            101         0      Not Applicable
  04/29/2026 04 AM PDT            1.92            101         0      Not Applicable
  04/29/2026 05 AM PDT            1.91            100         -      Not Applicable
  04/29/2026 06 AM PDT            1.91            100         0      Not Applicable
  04/29/2026 07 AM PDT            1.91            100         0      Not Applicable
  04/29/2026 08 AM PDT            1.91            100         0      Not Applicable
  04/29/2026 09 AM PDT            1.91            100         0      Not Applicable
  04/29/2026 10 AM PDT            1.91            100         0      Not Applicable
  04/29/2026 11 AM PDT            1.90             98         -      Not Applicable
  04/29/2026 12 PM PDT            1.90             98         0      Not Applicable
  04/29/2026 01 PM PDT            1.90             98         0      Not Applicable
  04/29/2026 02 PM PDT            1.90             98         0      Not Applicable
  04/29/2026 03 PM PDT            1.90             98         0      Not Applicable
  04/29/2026 04 PM PDT            1.90             98         0      Not Applicable
  04/29/2026 05 PM PDT            1.90             98         0      Not Applicable
  04/29/2026 06 PM PDT            1.90             98         0      Not Applicable
  04/29/2026 07 PM PDT            1.89             96         -      Not Applicable
  04/29/2026 08 PM PDT            1.89             96         0      Not Applicable
  04/29/2026 09 PM PDT            1.89             96         0      Not Applicable
  04/29/2026 10 PM PDT            1.89             96         0      Not Applicable
  04/29/2026 11 PM PDT            1.89             96         0      Not Applicable
  04/30/2026 12 AM PDT            1.89             96         0      Not Applicable
  04/30/2026 01 AM PDT            1.89             96         0      Not Applicable
  04/30/2026 02 AM PDT            1.88             95         -      Not Applicable
  04/30/2026 03 AM PDT            1.88             95         0      Not Applicable
  04/30/2026 04 AM PDT            1.88             95         0      Not Applicable
  04/30/2026 05 AM PDT            1.88             95         0      Not Applicable
  04/30/2026 06 AM PDT            1.88             95         0      Not Applicable
  04/30/2026 07 AM PDT            1.88             95         0      Not Applicable
  04/30/2026 08 AM PDT            1.88             95         0      Not Applicable
  04/30/2026 09 AM PDT            1.88             95         0      Not Applicable
  04/30/2026 10 AM PDT            1.87             93         -      Not Applicable
  04/30/2026 11 AM PDT            1.87             93         0      Not Applicable
  04/30/2026 12 PM PDT            1.87             93         0      Not Applicable
  04/30/2026 01 PM PDT            1.87             93         0      Not Applicable
  04/30/2026 02 PM PDT            1.87             93         0      Not Applicable
  04/30/2026 03 PM PDT            1.87             93         0      Not Applicable
  04/30/2026 04 PM PDT            1.87             93         0      Not Applicable
  04/30/2026 05 PM PDT            1.86             91         -      Not Applicable
  04/30/2026 06 PM PDT            1.86             91         0      Not Applicable
  04/30/2026 07 PM PDT            1.86             91         0      Not Applicable
  04/30/2026 08 PM PDT            1.86             91         0      Not Applicable
  04/30/2026 09 PM PDT            1.86             91         0      Not Applicable
  04/30/2026 10 PM PDT            1.86             91         0      Not Applicable
  04/30/2026 11 PM PDT            1.86             91         0      Not Applicable
  05/01/2026 12 AM PDT            1.86             91         0      Not Applicable
  05/01/2026 01 AM PDT            1.86             91         0      Not Applicable
  05/01/2026 02 AM PDT            1.86             91         0      Not Applicable
  05/01/2026 03 AM PDT            1.85             90         -      Not Applicable
  05/01/2026 04 AM PDT            1.85             90         0      Not Applicable
  05/01/2026 05 AM PDT            1.85             90         0      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.