KLAMATH RIVER - ORLEANS (ONSC1)
Latitude: 41.30º NLongitude: 123.54º WElevation: 354 FeetForecast Type: Official Location
Location: Humboldt County in CaliforniaBulletin Group: North CoastRiver Group: Klamath
Issuance Time: Apr 20 2026 at 6:49 AM PDTNext Issuance: Apr 21 2026 at 9:00 AM PDT
Action/Monitor: 32.0 FeetMinor Flood: 38.0 FeetModerate Flood: 43.0 FeetMajor Flood: 48.0 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Klamath River - Orleans (ONSC1)
#
# File Generation Time:  04/20/2026 at 06:49 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/16/2026 at 03:00 AM PDT
# Maximum Observed Stage:                       5.85 Feet
# Maximum Observed Flow:                        6452 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/22/2026 at 03:00 AM PDT
# Maximum Forecast Stage:                       7.23 Feet
# Maximum Forecast Flow:                        8759 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/15/2026 06 AM PDT            5.59           6052                        Normal
  04/15/2026 07 AM PDT            5.57           6022         -              Normal
  04/15/2026 08 AM PDT            5.58           6037         +              Normal
  04/15/2026 09 AM PDT            5.57           6022         -              Normal
  04/15/2026 10 AM PDT            5.56           6007         -              Normal
  04/15/2026 11 AM PDT            5.54           5977         -              Normal
  04/15/2026 12 PM PDT            5.56           6007         +              Normal
  04/15/2026 01 PM PDT            5.56           6007         0              Normal
  04/15/2026 02 PM PDT            5.56           6007         0              Normal
  04/15/2026 03 PM PDT            5.55           5992         -              Normal
  04/15/2026 04 PM PDT            5.54           5977         -              Normal
  04/15/2026 05 PM PDT            5.59           6052         +              Normal
  04/15/2026 06 PM PDT            5.61           6083         +              Normal
  04/15/2026 07 PM PDT            5.62           6098         +              Normal
  04/15/2026 08 PM PDT            5.62           6098         0              Normal
  04/15/2026 09 PM PDT            5.69           6205         +              Normal
  04/15/2026 10 PM PDT            5.71           6236         +              Normal
  04/15/2026 11 PM PDT            5.76           6313         +              Normal
  04/16/2026 12 AM PDT            5.77           6328         +              Normal
  04/16/2026 01 AM PDT            5.81           6390         +              Normal
  04/16/2026 02 AM PDT            5.80           6375         -              Normal
  04/16/2026 03 AM PDT            5.85           6452         +              Normal
  04/16/2026 04 AM PDT            5.83           6421         -              Normal
  04/16/2026 05 AM PDT            5.84           6437         +              Normal
  04/16/2026 06 AM PDT            5.84           6437         0              Normal
  04/16/2026 07 AM PDT            5.83           6421         -              Normal
  04/16/2026 08 AM PDT            5.83           6421         0              Normal
  04/16/2026 09 AM PDT            5.80           6375         -              Normal
  04/16/2026 10 AM PDT            5.77           6328         -              Normal
  04/16/2026 11 AM PDT            5.79           6359         +              Normal
  04/16/2026 12 PM PDT            5.71           6236         -              Normal
  04/16/2026 01 PM PDT            5.73           6267         +              Normal
  04/16/2026 02 PM PDT            5.72           6251         -              Normal
  04/16/2026 03 PM PDT            5.71           6236         -              Normal
  04/16/2026 04 PM PDT            5.68           6190         -              Normal
  04/16/2026 05 PM PDT            5.66           6159         -              Normal
  04/16/2026 06 PM PDT            5.64           6129         -              Normal
  04/16/2026 07 PM PDT            5.64           6129         0              Normal
  04/16/2026 08 PM PDT            5.61           6083         -              Normal
  04/16/2026 09 PM PDT            5.59           6052         -              Normal
  04/16/2026 10 PM PDT            5.56           6007         -              Normal
  04/16/2026 11 PM PDT            5.56           6007         0              Normal
  04/17/2026 12 AM PDT            5.57           6022         +              Normal
  04/17/2026 01 AM PDT            5.54           5977         -              Normal
  04/17/2026 02 AM PDT            5.53           5961         -              Normal
  04/17/2026 03 AM PDT            5.53           5961         0              Normal
  04/17/2026 04 AM PDT            5.51           5931         -              Normal
  04/17/2026 05 AM PDT            5.51           5931         0              Normal
  04/17/2026 06 AM PDT            5.51           5931         0              Normal
  04/17/2026 07 AM PDT            5.49           5901         -              Normal
  04/17/2026 08 AM PDT            5.48           5886         -              Normal
  04/17/2026 09 AM PDT            5.48           5886         0              Normal
  04/17/2026 10 AM PDT            5.47           5871         -              Normal
  04/17/2026 11 AM PDT            5.46           5856         -              Normal
  04/17/2026 12 PM PDT            5.47           5871         +              Normal
  04/17/2026 01 PM PDT            5.48           5886         +              Normal
  04/17/2026 02 PM PDT            5.46           5856         -              Normal
  04/17/2026 03 PM PDT            5.43           5811         -              Normal
  04/17/2026 04 PM PDT            5.43           5811         0              Normal
  04/17/2026 05 PM PDT            5.42           5796         -              Normal
  04/17/2026 06 PM PDT            5.40           5766         -              Normal
  04/17/2026 07 PM PDT            5.41           5781         +              Normal
  04/17/2026 08 PM PDT            5.42           5796         +              Normal
  04/17/2026 09 PM PDT            5.41           5781         -              Normal
  04/17/2026 10 PM PDT            5.42           5796         +              Normal
  04/17/2026 11 PM PDT            5.39           5751         -              Normal
  04/18/2026 12 AM PDT            5.38           5736         -              Normal
  04/18/2026 01 AM PDT            5.36           5706         -              Normal
  04/18/2026 02 AM PDT            5.36           5706         0              Normal
  04/18/2026 03 AM PDT            5.34           5676         -              Normal
  04/18/2026 04 AM PDT            5.35           5691         +              Normal
  04/18/2026 05 AM PDT            5.33           5661         -              Normal
  04/18/2026 06 AM PDT            5.34           5676         +              Normal
  04/18/2026 07 AM PDT            5.33           5661         -              Normal
  04/18/2026 08 AM PDT            5.33           5661         0              Normal
  04/18/2026 09 AM PDT            5.34           5676         +              Normal
  04/18/2026 10 AM PDT            5.32           5646         -              Normal
  04/18/2026 11 AM PDT            5.32           5646         0              Normal
  04/18/2026 12 PM PDT            5.30           5616         -              Normal
  04/18/2026 01 PM PDT            5.32           5646         +              Normal
  04/18/2026 02 PM PDT            5.29           5601         -              Normal
  04/18/2026 03 PM PDT            5.29           5601         0              Normal
  04/18/2026 04 PM PDT            5.30           5616         +              Normal
  04/18/2026 05 PM PDT            5.30           5616         0              Normal
  04/18/2026 06 PM PDT            5.28           5587         -              Normal
  04/18/2026 07 PM PDT            5.30           5616         +              Normal
  04/18/2026 08 PM PDT            5.27           5572         -              Normal
  04/18/2026 09 PM PDT            5.28           5587         +              Normal
  04/18/2026 10 PM PDT            5.27           5572         -              Normal
  04/18/2026 11 PM PDT            5.26           5557         -              Normal
  04/19/2026 12 AM PDT            5.25           5542         -              Normal
  04/19/2026 01 AM PDT            5.24           5527         -              Normal
  04/19/2026 02 AM PDT            5.23           5513         -              Normal
  04/19/2026 03 AM PDT            5.23           5513         0              Normal
  04/19/2026 04 AM PDT            5.21           5483         -              Normal
  04/19/2026 05 AM PDT            5.22           5498         +              Normal
  04/19/2026 06 AM PDT            5.22           5498         0              Normal
  04/19/2026 07 AM PDT            5.23           5513         +              Normal
  04/19/2026 08 AM PDT            5.18           5439         -              Normal
  04/19/2026 09 AM PDT            5.19           5454         +              Normal
  04/19/2026 10 AM PDT            5.19           5454         0              Normal
  04/19/2026 11 AM PDT            5.20           5468         +              Normal
  04/19/2026 12 PM PDT            5.20           5468         0              Normal
  04/19/2026 01 PM PDT            5.19           5454         -              Normal
  04/19/2026 02 PM PDT            5.21           5483         +              Normal
  04/19/2026 03 PM PDT            5.18           5439         -              Normal
  04/19/2026 04 PM PDT            5.18           5439         0              Normal
  04/19/2026 05 PM PDT            5.17           5424         -              Normal
  04/19/2026 06 PM PDT            5.17           5424         0              Normal
  04/19/2026 07 PM PDT            5.20           5468         +              Normal
  04/19/2026 08 PM PDT            5.15           5395         -              Normal
  04/19/2026 09 PM PDT            5.17           5424         +              Normal
  04/19/2026 10 PM PDT            5.17           5424         0              Normal
  04/19/2026 11 PM PDT            5.14           5380         -              Normal
  04/20/2026 12 AM PDT            5.14           5380         0              Normal
  04/20/2026 01 AM PDT            5.15           5395         +              Normal
  04/20/2026 02 AM PDT            5.11           5336         -              Normal
  04/20/2026 03 AM PDT            5.11           5336         0              Normal
  04/20/2026 04 AM PDT            5.12           5351         +              Normal
  04/20/2026 05 AM PDT            5.10           5322         -              Normal
  04/20/2026 06 AM PDT            5.11           5336         +              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/20/2026 07 AM PDT            5.07           5278                        Normal
  04/20/2026 08 AM PDT            5.06           5263         -              Normal
  04/20/2026 09 AM PDT            5.05           5249         -              Normal
  04/20/2026 10 AM PDT            5.05           5249         0              Normal
  04/20/2026 11 AM PDT            5.05           5249         0              Normal
  04/20/2026 12 PM PDT            5.06           5263         +              Normal
  04/20/2026 01 PM PDT            5.07           5278         +              Normal
  04/20/2026 02 PM PDT            5.09           5307         +              Normal
  04/20/2026 03 PM PDT            5.11           5336         +              Normal
  04/20/2026 04 PM PDT            5.15           5395         +              Normal
  04/20/2026 05 PM PDT            5.21           5483         +              Normal
  04/20/2026 06 PM PDT            5.28           5587         +              Normal
  04/20/2026 07 PM PDT            5.36           5706         +              Normal
  04/20/2026 08 PM PDT            5.44           5826         +              Normal
  04/20/2026 09 PM PDT            5.53           5961         +              Normal
  04/20/2026 10 PM PDT            5.62           6098         +              Normal
  04/20/2026 11 PM PDT            5.72           6251         +              Normal
  04/21/2026 12 AM PDT            5.83           6421         +              Normal
  04/21/2026 01 AM PDT            5.93           6577         +              Normal
  04/21/2026 02 AM PDT            6.03           6734         +              Normal
  04/21/2026 03 AM PDT            6.11           6860         +              Normal
  04/21/2026 04 AM PDT            6.18           6971         +              Normal
  04/21/2026 05 AM PDT            6.23           7051         +              Normal
  04/21/2026 06 AM PDT            6.26           7099         +              Normal
  04/21/2026 07 AM PDT            6.28           7131         +              Normal
  04/21/2026 08 AM PDT            6.28           7131         0              Normal
  04/21/2026 09 AM PDT            6.29           7147         +              Normal
  04/21/2026 10 AM PDT            6.28           7131         -              Normal
  04/21/2026 11 AM PDT            6.27           7115         -              Normal
  04/21/2026 12 PM PDT            6.26           7099         -              Normal
  04/21/2026 01 PM PDT            6.25           7083         -              Normal
  04/21/2026 02 PM PDT            6.25           7083         0              Normal
  04/21/2026 03 PM PDT            6.26           7099         +              Normal
  04/21/2026 04 PM PDT            6.30           7163         +              Normal
  04/21/2026 05 PM PDT            6.38           7292         +              Normal
  04/21/2026 06 PM PDT            6.49           7471         +              Normal
  04/21/2026 07 PM PDT            6.63           7700         +              Normal
  04/21/2026 08 PM PDT            6.78           7948         +              Normal
  04/21/2026 09 PM PDT            6.91           8176         +              Normal
  04/21/2026 10 PM PDT            7.02           8375         +              Normal
  04/21/2026 11 PM PDT            7.11           8539         +              Normal
  04/22/2026 12 AM PDT            7.17           8648         +              Normal
  04/22/2026 01 AM PDT            7.20           8703         +              Normal
  04/22/2026 02 AM PDT            7.22           8740         +              Normal
  04/22/2026 03 AM PDT            7.23           8759         +              Normal
  04/22/2026 04 AM PDT            7.22           8740         -              Normal
  04/22/2026 05 AM PDT            7.21           8722         -              Normal
  04/22/2026 06 AM PDT            7.19           8685         -              Normal
  04/22/2026 07 AM PDT            7.16           8630         -              Normal
  04/22/2026 08 AM PDT            7.12           8557         -              Normal
  04/22/2026 09 AM PDT            7.09           8502         -              Normal
  04/22/2026 10 AM PDT            7.06           8447         -              Normal
  04/22/2026 11 AM PDT            7.04           8411         -              Normal
  04/22/2026 12 PM PDT            7.01           8357         -              Normal
  04/22/2026 01 PM PDT            6.98           8303         -              Normal
  04/22/2026 02 PM PDT            6.96           8266         -              Normal
  04/22/2026 03 PM PDT            6.93           8212         -              Normal
  04/22/2026 04 PM PDT            6.91           8176         -              Normal
  04/22/2026 05 PM PDT            6.90           8158         -              Normal
  04/22/2026 06 PM PDT            6.88           8123         -              Normal
  04/22/2026 07 PM PDT            6.87           8105         -              Normal
  04/22/2026 08 PM PDT            6.86           8087         -              Normal
  04/22/2026 09 PM PDT            6.85           8069         -              Normal
  04/22/2026 10 PM PDT            6.83           8033         -              Normal
  04/22/2026 11 PM PDT            6.81           7998         -              Normal
  04/23/2026 12 AM PDT            6.79           7964         -              Normal
  04/23/2026 01 AM PDT            6.76           7915         -              Normal
  04/23/2026 02 AM PDT            6.73           7865         -              Normal
  04/23/2026 03 AM PDT            6.70           7815         -              Normal
  04/23/2026 04 AM PDT            6.67           7766         -              Normal
  04/23/2026 05 AM PDT            6.64           7716         -              Normal
  04/23/2026 06 AM PDT            6.61           7667         -              Normal
  04/23/2026 07 AM PDT            6.57           7601         -              Normal
  04/23/2026 08 AM PDT            6.54           7552         -              Normal
  04/23/2026 09 AM PDT            6.51           7503         -              Normal
  04/23/2026 10 AM PDT            6.48           7455         -              Normal
  04/23/2026 11 AM PDT            6.45           7406         -              Normal
  04/23/2026 12 PM PDT            6.42           7357         -              Normal
  04/23/2026 01 PM PDT            6.39           7309         -              Normal
  04/23/2026 02 PM PDT            6.37           7276         -              Normal
  04/23/2026 03 PM PDT            6.35           7244         -              Normal
  04/23/2026 04 PM PDT            6.33           7212         -              Normal
  04/23/2026 05 PM PDT            6.33           7212         0              Normal
  04/23/2026 06 PM PDT            6.32           7196         -              Normal
  04/23/2026 07 PM PDT            6.32           7196         0              Normal
  04/23/2026 08 PM PDT            6.33           7212         +              Normal
  04/23/2026 09 PM PDT            6.33           7212         0              Normal
  04/23/2026 10 PM PDT            6.33           7212         0              Normal
  04/23/2026 11 PM PDT            6.33           7212         0              Normal
  04/24/2026 12 AM PDT            6.32           7196         -              Normal
  04/24/2026 01 AM PDT            6.31           7180         -              Normal
  04/24/2026 02 AM PDT            6.30           7163         -              Normal
  04/24/2026 03 AM PDT            6.28           7131         -              Normal
  04/24/2026 04 AM PDT            6.26           7099         -              Normal
  04/24/2026 05 AM PDT            6.24           7067         -              Normal
  04/24/2026 06 AM PDT            6.22           7035         -              Normal
  04/24/2026 07 AM PDT            6.19           6987         -              Normal
  04/24/2026 08 AM PDT            6.17           6956         -              Normal
  04/24/2026 09 AM PDT            6.14           6908         -              Normal
  04/24/2026 10 AM PDT            6.12           6876         -              Normal
  04/24/2026 11 AM PDT            6.09           6829         -              Normal
  04/24/2026 12 PM PDT            6.07           6797         -              Normal
  04/24/2026 01 PM PDT            6.05           6765         -              Normal
  04/24/2026 02 PM PDT            6.03           6734         -              Normal
  04/24/2026 03 PM PDT            6.00           6687         -              Normal
  04/24/2026 04 PM PDT            5.98           6655         -              Normal
  04/24/2026 05 PM PDT            5.96           6624         -              Normal
  04/24/2026 06 PM PDT            5.94           6593         -              Normal
  04/24/2026 07 PM PDT            5.92           6561         -              Normal
  04/24/2026 08 PM PDT            5.90           6530         -              Normal
  04/24/2026 09 PM PDT            5.89           6515         -              Normal
  04/24/2026 10 PM PDT            5.87           6483         -              Normal
  04/24/2026 11 PM PDT            5.85           6452         -              Normal
  04/25/2026 12 AM PDT            5.83           6421         -              Normal
  04/25/2026 01 AM PDT            5.81           6390         -              Normal
  04/25/2026 02 AM PDT            5.79           6359         -              Normal
  04/25/2026 03 AM PDT            5.77           6328         -              Normal
  04/25/2026 04 AM PDT            5.75           6298         -              Normal
  04/25/2026 05 AM PDT            5.72           6251         -              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.