National Weather Service California-Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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KLAMATH RIVER - IRON GATE (IRGC1)
Latitude: 41.93º NLongitude: 122.44º WElevation: 2162 FeetForecast Type: Unofficial Location
Location: Siskiyou County in CaliforniaBulletin Group: North CoastRiver Group: Klamath
Issuance Time: Sep 06 2026 at 7:07 AM PDTNext Issuance: Sep 07 2026 at 9:00 AM PDT
Action: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A


# Tabular Observed and Forecast Hydrograph Information
#
# Location: Klamath River - Iron Gate (IRGC1)
#
# File Generation Time:  09/06/2026 at 07:08 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  09/01/2026 at 11:00 AM PDT
# Maximum Observed Stage:                       2.36 Feet
# Maximum Observed Flow:                        1268 cfs
#
# Earliest Date & Time of Maximum Forecast:     09/06/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       1.95 Feet
# Maximum Forecast Flow:                        1015 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  09/01/2026 07 AM PDT            2.35           1262                Not Applicable
  09/01/2026 08 AM PDT            2.36           1268         +      Not Applicable
  09/01/2026 09 AM PDT            2.36           1268         0      Not Applicable
  09/01/2026 10 AM PDT            2.36           1268         0      Not Applicable
  09/01/2026 11 AM PDT            2.36           1268         0      Not Applicable
  09/01/2026 12 PM PDT            2.35           1262         -      Not Applicable
  09/01/2026 01 PM PDT            2.34           1255         -      Not Applicable
  09/01/2026 02 PM PDT            2.33           1248         -      Not Applicable
  09/01/2026 03 PM PDT            2.34           1255         +      Not Applicable
  09/01/2026 04 PM PDT            2.34           1255         0      Not Applicable
  09/01/2026 05 PM PDT            2.35           1262         +      Not Applicable
  09/01/2026 06 PM PDT            2.34           1255         -      Not Applicable
  09/01/2026 07 PM PDT            2.34           1255         0      Not Applicable
  09/01/2026 08 PM PDT            2.33           1248         -      Not Applicable
  09/01/2026 09 PM PDT            2.33           1248         0      Not Applicable
  09/01/2026 10 PM PDT            2.35           1262         +      Not Applicable
  09/01/2026 11 PM PDT            2.34           1255         -      Not Applicable
  09/02/2026 12 AM PDT            2.30           1229         -      Not Applicable
  09/02/2026 01 AM PDT            2.27           1209         -      Not Applicable
  09/02/2026 02 AM PDT            2.22           1177         -      Not Applicable
  09/02/2026 03 AM PDT            2.21           1170         -      Not Applicable
  09/02/2026 04 AM PDT            2.18           1151         -      Not Applicable
  09/02/2026 05 AM PDT            2.13           1120         -      Not Applicable
  09/02/2026 06 AM PDT            2.12           1113         -      Not Applicable
  09/02/2026 07 AM PDT            2.11           1107         -      Not Applicable
  09/02/2026 08 AM PDT            2.10           1101         -      Not Applicable
  09/02/2026 09 AM PDT            2.12           1113         +      Not Applicable
  09/02/2026 10 AM PDT            2.11           1107         -      Not Applicable
  09/02/2026 11 AM PDT            2.11           1107         0      Not Applicable
  09/02/2026 12 PM PDT            2.11           1107         0      Not Applicable
  09/02/2026 01 PM PDT            2.12           1113         +      Not Applicable
  09/02/2026 02 PM PDT            2.12           1113         0      Not Applicable
  09/02/2026 03 PM PDT            2.12           1113         0      Not Applicable
  09/02/2026 04 PM PDT            2.13           1120         +      Not Applicable
  09/02/2026 05 PM PDT            2.12           1113         -      Not Applicable
  09/02/2026 06 PM PDT            2.12           1113         0      Not Applicable
  09/02/2026 07 PM PDT            2.14           1126         +      Not Applicable
  09/02/2026 08 PM PDT            2.14           1126         0      Not Applicable
  09/02/2026 09 PM PDT            2.14           1126         0      Not Applicable
  09/02/2026 10 PM PDT            2.14           1126         0      Not Applicable
  09/02/2026 11 PM PDT            2.14           1126         0      Not Applicable
  09/03/2026 12 AM PDT            2.11           1107         -      Not Applicable
  09/03/2026 01 AM PDT            2.09           1095         -      Not Applicable
  09/03/2026 02 AM PDT            2.06           1078         -      Not Applicable
  09/03/2026 03 AM PDT            2.03           1060         -      Not Applicable
  09/03/2026 04 AM PDT            1.99           1038         -      Not Applicable
  09/03/2026 05 AM PDT            1.95           1015         -      Not Applicable
  09/03/2026 06 AM PDT            1.91            993         -      Not Applicable
  09/03/2026 07 AM PDT            1.90            987         -      Not Applicable
  09/03/2026 08 AM PDT            1.90            987         0      Not Applicable
  09/03/2026 09 AM PDT            1.88            976         -      Not Applicable
  09/03/2026 10 AM PDT            1.89            982         +      Not Applicable
  09/03/2026 11 AM PDT            1.89            982         0      Not Applicable
  09/03/2026 12 PM PDT            1.90            987         +      Not Applicable
  09/03/2026 01 PM PDT            1.89            982         -      Not Applicable
  09/03/2026 02 PM PDT            1.90            987         +      Not Applicable
  09/03/2026 03 PM PDT            1.93           1004         +      Not Applicable
  09/03/2026 04 PM PDT            1.93           1004         0      Not Applicable
  09/03/2026 05 PM PDT            1.92            998         -      Not Applicable
  09/03/2026 06 PM PDT            1.93           1004         +      Not Applicable
  09/03/2026 07 PM PDT            1.91            993         -      Not Applicable
  09/03/2026 08 PM PDT            1.90            987         -      Not Applicable
  09/03/2026 09 PM PDT            1.89            982         -      Not Applicable
  09/03/2026 10 PM PDT            1.91            993         +      Not Applicable
  09/03/2026 11 PM PDT            1.90            987         -      Not Applicable
  09/04/2026 12 AM PDT            1.90            987         0      Not Applicable
  09/04/2026 01 AM PDT            1.91            993         +      Not Applicable
  09/04/2026 02 AM PDT            1.90            987         -      Not Applicable
  09/04/2026 03 AM PDT            1.90            987         0      Not Applicable
  09/04/2026 04 AM PDT            1.89            982         -      Not Applicable
  09/04/2026 05 AM PDT            1.88            976         -      Not Applicable
  09/04/2026 06 AM PDT            1.88            976         0      Not Applicable
  09/04/2026 07 AM PDT            1.88            976         0      Not Applicable
  09/04/2026 08 AM PDT            1.89            982         +      Not Applicable
  09/04/2026 09 AM PDT            1.88            976         -      Not Applicable
  09/04/2026 10 AM PDT            1.88            976         0      Not Applicable
  09/04/2026 11 AM PDT            1.88            976         0      Not Applicable
  09/04/2026 12 PM PDT            1.89            982         +      Not Applicable
  09/04/2026 01 PM PDT            1.90            987         +      Not Applicable
  09/04/2026 02 PM PDT            1.89            982         -      Not Applicable
  09/04/2026 03 PM PDT            1.90            987         +      Not Applicable
  09/04/2026 04 PM PDT            1.90            987         0      Not Applicable
  09/04/2026 05 PM PDT            1.89            982         -      Not Applicable
  09/04/2026 06 PM PDT            1.88            976         -      Not Applicable
  09/04/2026 07 PM PDT            1.88            976         0      Not Applicable
  09/04/2026 08 PM PDT            1.88            976         0      Not Applicable
  09/04/2026 09 PM PDT            1.88            976         0      Not Applicable
  09/04/2026 10 PM PDT            1.89            982         +      Not Applicable
  09/04/2026 11 PM PDT            1.88            976         -      Not Applicable
  09/05/2026 12 AM PDT            1.87            971         -      Not Applicable
  09/05/2026 01 AM PDT            1.88            976         +      Not Applicable
  09/05/2026 02 AM PDT            1.88            976         0      Not Applicable
  09/05/2026 03 AM PDT            1.88            976         0      Not Applicable
  09/05/2026 04 AM PDT            1.88            976         0      Not Applicable
  09/05/2026 05 AM PDT            1.87            971         -      Not Applicable
  09/05/2026 06 AM PDT            1.88            976         +      Not Applicable
  09/05/2026 07 AM PDT            1.87            971         -      Not Applicable
  09/05/2026 08 AM PDT            1.88            976         +      Not Applicable
  09/05/2026 09 AM PDT            1.88            976         0      Not Applicable
  09/05/2026 10 AM PDT            1.88            976         0      Not Applicable
  09/05/2026 11 AM PDT            1.88            976         0      Not Applicable
  09/05/2026 12 PM PDT            1.89            982         +      Not Applicable
  09/05/2026 01 PM PDT            1.90            987         +      Not Applicable
  09/05/2026 02 PM PDT            1.89            982         -      Not Applicable
  09/05/2026 03 PM PDT            1.89            982         0      Not Applicable
  09/05/2026 04 PM PDT            1.89            982         0      Not Applicable
  09/05/2026 05 PM PDT            1.88            976         -      Not Applicable
  09/05/2026 06 PM PDT            1.88            976         0      Not Applicable
  09/05/2026 07 PM PDT            1.86            965         -      Not Applicable
  09/05/2026 08 PM PDT            1.91            993         +      Not Applicable
  09/05/2026 09 PM PDT            1.95           1015         +      Not Applicable
  09/05/2026 10 PM PDT            1.96           1021         +      Not Applicable
  09/05/2026 11 PM PDT            1.96           1021         0      Not Applicable
  09/06/2026 12 AM PDT            1.95           1015         -      Not Applicable
  09/06/2026 01 AM PDT            1.95           1015         0      Not Applicable
  09/06/2026 02 AM PDT            1.94           1009         -      Not Applicable
  09/06/2026 03 AM PDT            1.94           1009         0      Not Applicable
  09/06/2026 04 AM PDT            1.94           1009         0      Not Applicable
  09/06/2026 05 AM PDT            1.95           1015         +      Not Applicable
  09/06/2026 06 AM PDT            1.95           1015         0      Not Applicable
  09/06/2026 07 AM PDT            1.95           1015         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  09/06/2026 08 AM PDT            1.95           1015                Not Applicable
  09/06/2026 09 AM PDT            1.95           1015         0      Not Applicable
  09/06/2026 10 AM PDT            1.95           1015         0      Not Applicable
  09/06/2026 11 AM PDT            1.94           1009         -      Not Applicable
  09/06/2026 12 PM PDT            1.94           1009         0      Not Applicable
  09/06/2026 01 PM PDT            1.94           1009         0      Not Applicable
  09/06/2026 02 PM PDT            1.94           1009         0      Not Applicable
  09/06/2026 03 PM PDT            1.94           1009         0      Not Applicable
  09/06/2026 04 PM PDT            1.95           1015         +      Not Applicable
  09/06/2026 05 PM PDT            1.95           1015         0      Not Applicable
  09/06/2026 06 PM PDT            1.95           1015         0      Not Applicable
  09/06/2026 07 PM PDT            1.95           1015         0      Not Applicable
  09/06/2026 08 PM PDT            1.95           1015         0      Not Applicable
  09/06/2026 09 PM PDT            1.95           1015         0      Not Applicable
  09/06/2026 10 PM PDT            1.95           1015         0      Not Applicable
  09/06/2026 11 PM PDT            1.95           1015         0      Not Applicable
  09/07/2026 12 AM PDT            1.95           1015         0      Not Applicable
  09/07/2026 01 AM PDT            1.95           1015         0      Not Applicable
  09/07/2026 02 AM PDT            1.95           1015         0      Not Applicable
  09/07/2026 03 AM PDT            1.95           1015         0      Not Applicable
  09/07/2026 04 AM PDT            1.94           1009         -      Not Applicable
  09/07/2026 05 AM PDT            1.94           1009         0      Not Applicable
  09/07/2026 06 AM PDT            1.94           1009         0      Not Applicable
  09/07/2026 07 AM PDT            1.93           1004         -      Not Applicable
  09/07/2026 08 AM PDT            1.93           1004         0      Not Applicable
  09/07/2026 09 AM PDT            1.92            998         -      Not Applicable
  09/07/2026 10 AM PDT            1.92            998         0      Not Applicable
  09/07/2026 11 AM PDT            1.91            993         -      Not Applicable
  09/07/2026 12 PM PDT            1.91            993         0      Not Applicable
  09/07/2026 01 PM PDT            1.91            993         0      Not Applicable
  09/07/2026 02 PM PDT            1.90            987         -      Not Applicable
  09/07/2026 03 PM PDT            1.90            987         0      Not Applicable
  09/07/2026 04 PM PDT            1.89            982         -      Not Applicable
  09/07/2026 05 PM PDT            1.89            982         0      Not Applicable
  09/07/2026 06 PM PDT            1.89            982         0      Not Applicable
  09/07/2026 07 PM PDT            1.89            982         0      Not Applicable
  09/07/2026 08 PM PDT            1.88            976         -      Not Applicable
  09/07/2026 09 PM PDT            1.88            976         0      Not Applicable
  09/07/2026 10 PM PDT            1.88            976         0      Not Applicable
  09/07/2026 11 PM PDT            1.88            976         0      Not Applicable
  09/08/2026 12 AM PDT            1.88            976         0      Not Applicable
  09/08/2026 01 AM PDT            1.87            971         -      Not Applicable
  09/08/2026 02 AM PDT            1.87            971         0      Not Applicable
  09/08/2026 03 AM PDT            1.87            971         0      Not Applicable
  09/08/2026 04 AM PDT            1.87            971         0      Not Applicable
  09/08/2026 05 AM PDT            1.87            971         0      Not Applicable
  09/08/2026 06 AM PDT            1.87            971         0      Not Applicable
  09/08/2026 07 AM PDT            1.87            971         0      Not Applicable
  09/08/2026 08 AM PDT            1.87            971         0      Not Applicable
  09/08/2026 09 AM PDT            1.87            971         0      Not Applicable
  09/08/2026 10 AM PDT            1.87            971         0      Not Applicable
  09/08/2026 11 AM PDT            1.87            971         0      Not Applicable
  09/08/2026 12 PM PDT            1.87            971         0      Not Applicable
  09/08/2026 01 PM PDT            1.87            971         0      Not Applicable
  09/08/2026 02 PM PDT            1.87            971         0      Not Applicable
  09/08/2026 03 PM PDT            1.87            971         0      Not Applicable
  09/08/2026 04 PM PDT            1.87            971         0      Not Applicable
  09/08/2026 05 PM PDT            1.87            971         0      Not Applicable
  09/08/2026 06 PM PDT            1.88            976         +      Not Applicable
  09/08/2026 07 PM PDT            1.88            976         0      Not Applicable
  09/08/2026 08 PM PDT            1.88            976         0      Not Applicable
  09/08/2026 09 PM PDT            1.88            976         0      Not Applicable
  09/08/2026 10 PM PDT            1.88            976         0      Not Applicable
  09/08/2026 11 PM PDT            1.88            976         0      Not Applicable
  09/09/2026 12 AM PDT            1.88            976         0      Not Applicable
  09/09/2026 01 AM PDT            1.88            976         0      Not Applicable
  09/09/2026 02 AM PDT            1.88            976         0      Not Applicable
  09/09/2026 03 AM PDT            1.88            976         0      Not Applicable
  09/09/2026 04 AM PDT            1.89            982         +      Not Applicable
  09/09/2026 05 AM PDT            1.89            982         0      Not Applicable
  09/09/2026 06 AM PDT            1.89            982         0      Not Applicable
  09/09/2026 07 AM PDT            1.89            982         0      Not Applicable
  09/09/2026 08 AM PDT            1.89            982         0      Not Applicable
  09/09/2026 09 AM PDT            1.89            982         0      Not Applicable
  09/09/2026 10 AM PDT            1.89            982         0      Not Applicable
  09/09/2026 11 AM PDT            1.90            987         +      Not Applicable
  09/09/2026 12 PM PDT            1.90            987         0      Not Applicable
  09/09/2026 01 PM PDT            1.90            987         0      Not Applicable
  09/09/2026 02 PM PDT            1.90            987         0      Not Applicable
  09/09/2026 03 PM PDT            1.90            987         0      Not Applicable
  09/09/2026 04 PM PDT            1.90            987         0      Not Applicable
  09/09/2026 05 PM PDT            1.90            987         0      Not Applicable
  09/09/2026 06 PM PDT            1.90            987         0      Not Applicable
  09/09/2026 07 PM PDT            1.91            993         +      Not Applicable
  09/09/2026 08 PM PDT            1.91            993         0      Not Applicable
  09/09/2026 09 PM PDT            1.91            993         0      Not Applicable
  09/09/2026 10 PM PDT            1.91            993         0      Not Applicable
  09/09/2026 11 PM PDT            1.91            993         0      Not Applicable
  09/10/2026 12 AM PDT            1.91            993         0      Not Applicable
  09/10/2026 01 AM PDT            1.91            993         0      Not Applicable
  09/10/2026 02 AM PDT            1.91            993         0      Not Applicable
  09/10/2026 03 AM PDT            1.91            993         0      Not Applicable
  09/10/2026 04 AM PDT            1.91            993         0      Not Applicable
  09/10/2026 05 AM PDT            1.92            998         +      Not Applicable
  09/10/2026 06 AM PDT            1.92            998         0      Not Applicable
  09/10/2026 07 AM PDT            1.92            998         0      Not Applicable
  09/10/2026 08 AM PDT            1.92            998         0      Not Applicable
  09/10/2026 09 AM PDT            1.92            998         0      Not Applicable
  09/10/2026 10 AM PDT            1.92            998         0      Not Applicable
  09/10/2026 11 AM PDT            1.92            998         0      Not Applicable
  09/10/2026 12 PM PDT            1.93           1004         +      Not Applicable
  09/10/2026 01 PM PDT            1.93           1004         0      Not Applicable
  09/10/2026 02 PM PDT            1.93           1004         0      Not Applicable
  09/10/2026 03 PM PDT            1.93           1004         0      Not Applicable
  09/10/2026 04 PM PDT            1.93           1004         0      Not Applicable
  09/10/2026 05 PM PDT            1.93           1004         0      Not Applicable
  09/10/2026 06 PM PDT            1.93           1004         0      Not Applicable
  09/10/2026 07 PM PDT            1.93           1004         0      Not Applicable
  09/10/2026 08 PM PDT            1.94           1009         +      Not Applicable
  09/10/2026 09 PM PDT            1.94           1009         0      Not Applicable
  09/10/2026 10 PM PDT            1.94           1009         0      Not Applicable
  09/10/2026 11 PM PDT            1.94           1009         0      Not Applicable
  09/11/2026 12 AM PDT            1.94           1009         0      Not Applicable
  09/11/2026 01 AM PDT            1.94           1009         0      Not Applicable
  09/11/2026 02 AM PDT            1.94           1009         0      Not Applicable
  09/11/2026 03 AM PDT            1.94           1009         0      Not Applicable
  09/11/2026 04 AM PDT            1.94           1009         0      Not Applicable
  09/11/2026 05 AM PDT            1.95           1015         +      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.