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

 | 

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 03 2026 at 7:13 AM PDTNext Issuance: Sep 04 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:  09/03/2026 at 07:14 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  08/29/2026 at 11:00 AM PDT
# Maximum Observed Stage:                       3.34 Feet
# Maximum Observed Flow:                        2006 cfs
#
# Earliest Date & Time of Maximum Forecast:     09/03/2026 at 07:00 AM PDT
# Maximum Forecast Stage:                       1.90 Feet
# Maximum Forecast Flow:                        987 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  08/29/2026 07 AM PDT            3.34           2006                Not Applicable
  08/29/2026 08 AM PDT            3.34           2006         0      Not Applicable
  08/29/2026 09 AM PDT            3.34           2006         0      Not Applicable
  08/29/2026 10 AM PDT            3.34           2006         0      Not Applicable
  08/29/2026 11 AM PDT            3.34           2006         0      Not Applicable
  08/29/2026 12 PM PDT            3.32           1990         -      Not Applicable
  08/29/2026 01 PM PDT            3.32           1990         0      Not Applicable
  08/29/2026 02 PM PDT            3.32           1990         0      Not Applicable
  08/29/2026 03 PM PDT            3.31           1981         -      Not Applicable
  08/29/2026 04 PM PDT            3.28           1956         -      Not Applicable
  08/29/2026 05 PM PDT            3.23           1915         -      Not Applicable
  08/29/2026 06 PM PDT            3.22           1907         -      Not Applicable
  08/29/2026 07 PM PDT            3.21           1899         -      Not Applicable
  08/29/2026 08 PM PDT            3.22           1907         +      Not Applicable
  08/29/2026 09 PM PDT            3.22           1907         0      Not Applicable
  08/29/2026 10 PM PDT            3.16           1858         -      Not Applicable
  08/29/2026 11 PM PDT            3.07           1786         -      Not Applicable
  08/30/2026 12 AM PDT            3.03           1755         -      Not Applicable
  08/30/2026 01 AM PDT            3.02           1747         -      Not Applicable
  08/30/2026 02 AM PDT            3.02           1747         0      Not Applicable
  08/30/2026 03 AM PDT            3.01           1739         -      Not Applicable
  08/30/2026 04 AM PDT            3.00           1731         -      Not Applicable
  08/30/2026 05 AM PDT            2.97           1708         -      Not Applicable
  08/30/2026 06 AM PDT            2.96           1700         -      Not Applicable
  08/30/2026 07 AM PDT            2.96           1700         0      Not Applicable
  08/30/2026 08 AM PDT            2.96           1700         0      Not Applicable
  08/30/2026 09 AM PDT            2.95           1692         -      Not Applicable
  08/30/2026 10 AM PDT            2.94           1685         -      Not Applicable
  08/30/2026 11 AM PDT            2.90           1654         -      Not Applicable
  08/30/2026 12 PM PDT            2.89           1646         -      Not Applicable
  08/30/2026 01 PM PDT            2.88           1639         -      Not Applicable
  08/30/2026 02 PM PDT            2.87           1631         -      Not Applicable
  08/30/2026 03 PM PDT            2.87           1631         0      Not Applicable
  08/30/2026 04 PM PDT            2.85           1616         -      Not Applicable
  08/30/2026 05 PM PDT            2.81           1586         -      Not Applicable
  08/30/2026 06 PM PDT            2.78           1564         -      Not Applicable
  08/30/2026 07 PM PDT            2.78           1564         0      Not Applicable
  08/30/2026 08 PM PDT            2.78           1564         0      Not Applicable
  08/30/2026 09 PM PDT            2.79           1571         +      Not Applicable
  08/30/2026 10 PM PDT            2.77           1556         -      Not Applicable
  08/30/2026 11 PM PDT            2.74           1534         -      Not Applicable
  08/31/2026 12 AM PDT            2.72           1520         -      Not Applicable
  08/31/2026 01 AM PDT            2.70           1505         -      Not Applicable
  08/31/2026 02 AM PDT            2.67           1483         -      Not Applicable
  08/31/2026 03 AM PDT            2.62           1448         -      Not Applicable
  08/31/2026 04 AM PDT            2.60           1433         -      Not Applicable
  08/31/2026 05 AM PDT            2.60           1433         0      Not Applicable
  08/31/2026 06 AM PDT            2.60           1433         0      Not Applicable
  08/31/2026 07 AM PDT            2.59           1426         -      Not Applicable
  08/31/2026 08 AM PDT            2.59           1426         0      Not Applicable
  08/31/2026 09 AM PDT            2.57           1412         -      Not Applicable
  08/31/2026 10 AM PDT            2.58           1419         +      Not Applicable
  08/31/2026 11 AM PDT            2.58           1419         0      Not Applicable
  08/31/2026 12 PM PDT            2.59           1426         +      Not Applicable
  08/31/2026 01 PM PDT            2.58           1419         -      Not Applicable
  08/31/2026 02 PM PDT            2.59           1426         +      Not Applicable
  08/31/2026 03 PM PDT            2.58           1419         -      Not Applicable
  08/31/2026 04 PM PDT            2.59           1426         +      Not Applicable
  08/31/2026 05 PM PDT            2.59           1426         0      Not Applicable
  08/31/2026 06 PM PDT            2.57           1412         -      Not Applicable
  08/31/2026 07 PM PDT            2.55           1398         -      Not Applicable
  08/31/2026 08 PM PDT            2.55           1398         0      Not Applicable
  08/31/2026 09 PM PDT            2.55           1398         0      Not Applicable
  08/31/2026 10 PM PDT            2.56           1405         +      Not Applicable
  08/31/2026 11 PM PDT            2.56           1405         0      Not Applicable
  09/01/2026 12 AM PDT            2.54           1391         -      Not Applicable
  09/01/2026 01 AM PDT            2.51           1370         -      Not Applicable
  09/01/2026 02 AM PDT            2.46           1336         -      Not Applicable
  09/01/2026 03 AM PDT            2.42           1309         -      Not Applicable
  09/01/2026 04 AM PDT            2.39           1288         -      Not Applicable
  09/01/2026 05 AM PDT            2.37           1275         -      Not Applicable
  09/01/2026 06 AM PDT            2.36           1268         -      Not Applicable
  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            1.93           1004         -      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  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            1.89            982         -      Not Applicable
  09/03/2026 10 AM PDT            1.89            982         0      Not Applicable
  09/03/2026 11 AM PDT            1.89            982         0      Not Applicable
  09/03/2026 12 PM PDT            1.88            976         -      Not Applicable
  09/03/2026 01 PM PDT            1.88            976         0      Not Applicable
  09/03/2026 02 PM PDT            1.87            971         -      Not Applicable
  09/03/2026 03 PM PDT            1.87            971         0      Not Applicable
  09/03/2026 04 PM PDT            1.86            965         -      Not Applicable
  09/03/2026 05 PM PDT            1.86            965         0      Not Applicable
  09/03/2026 06 PM PDT            1.86            965         0      Not Applicable
  09/03/2026 07 PM PDT            1.85            960         -      Not Applicable
  09/03/2026 08 PM PDT            1.85            960         0      Not Applicable
  09/03/2026 09 PM PDT            1.85            960         0      Not Applicable
  09/03/2026 10 PM PDT            1.84            954         -      Not Applicable
  09/03/2026 11 PM PDT            1.84            954         0      Not Applicable
  09/04/2026 12 AM PDT            1.84            954         0      Not Applicable
  09/04/2026 01 AM PDT            1.83            949         -      Not Applicable
  09/04/2026 02 AM PDT            1.83            949         0      Not Applicable
  09/04/2026 03 AM PDT            1.83            949         0      Not Applicable
  09/04/2026 04 AM PDT            1.83            949         0      Not Applicable
  09/04/2026 05 AM PDT            1.83            949         0      Not Applicable
  09/04/2026 06 AM PDT            1.83            949         0      Not Applicable
  09/04/2026 07 AM PDT            1.83            949         0      Not Applicable
  09/04/2026 08 AM PDT            1.82            943         -      Not Applicable
  09/04/2026 09 AM PDT            1.82            943         0      Not Applicable
  09/04/2026 10 AM PDT            1.82            943         0      Not Applicable
  09/04/2026 11 AM PDT            1.82            943         0      Not Applicable
  09/04/2026 12 PM PDT            1.82            943         0      Not Applicable
  09/04/2026 01 PM PDT            1.82            943         0      Not Applicable
  09/04/2026 02 PM PDT            1.82            943         0      Not Applicable
  09/04/2026 03 PM PDT            1.82            943         0      Not Applicable
  09/04/2026 04 PM PDT            1.81            938         -      Not Applicable
  09/04/2026 05 PM PDT            1.81            938         0      Not Applicable
  09/04/2026 06 PM PDT            1.81            938         0      Not Applicable
  09/04/2026 07 PM PDT            1.81            938         0      Not Applicable
  09/04/2026 08 PM PDT            1.81            938         0      Not Applicable
  09/04/2026 09 PM PDT            1.81            938         0      Not Applicable
  09/04/2026 10 PM PDT            1.81            938         0      Not Applicable
  09/04/2026 11 PM PDT            1.80            933         -      Not Applicable
  09/05/2026 12 AM PDT            1.80            933         0      Not Applicable
  09/05/2026 01 AM PDT            1.80            933         0      Not Applicable
  09/05/2026 02 AM PDT            1.80            933         0      Not Applicable
  09/05/2026 03 AM PDT            1.80            933         0      Not Applicable
  09/05/2026 04 AM PDT            1.80            933         0      Not Applicable
  09/05/2026 05 AM PDT            1.80            933         0      Not Applicable
  09/05/2026 06 AM PDT            1.79            927         -      Not Applicable
  09/05/2026 07 AM PDT            1.79            927         0      Not Applicable
  09/05/2026 08 AM PDT            1.79            927         0      Not Applicable
  09/05/2026 09 AM PDT            1.79            927         0      Not Applicable
  09/05/2026 10 AM PDT            1.79            927         0      Not Applicable
  09/05/2026 11 AM PDT            1.79            927         0      Not Applicable
  09/05/2026 12 PM PDT            1.79            927         0      Not Applicable
  09/05/2026 01 PM PDT            1.79            927         0      Not Applicable
  09/05/2026 02 PM PDT            1.78            922         -      Not Applicable
  09/05/2026 03 PM PDT            1.78            922         0      Not Applicable
  09/05/2026 04 PM PDT            1.78            922         0      Not Applicable
  09/05/2026 05 PM PDT            1.78            922         0      Not Applicable
  09/05/2026 06 PM PDT            1.78            922         0      Not Applicable
  09/05/2026 07 PM PDT            1.78            922         0      Not Applicable
  09/05/2026 08 PM PDT            1.78            922         0      Not Applicable
  09/05/2026 09 PM PDT            1.78            922         0      Not Applicable
  09/05/2026 10 PM PDT            1.78            922         0      Not Applicable
  09/05/2026 11 PM PDT            1.78            922         0      Not Applicable
  09/06/2026 12 AM PDT            1.78            922         0      Not Applicable
  09/06/2026 01 AM PDT            1.78            922         0      Not Applicable
  09/06/2026 02 AM PDT            1.78            922         0      Not Applicable
  09/06/2026 03 AM PDT            1.78            922         0      Not Applicable
  09/06/2026 04 AM PDT            1.78            922         0      Not Applicable
  09/06/2026 05 AM PDT            1.78            922         0      Not Applicable
  09/06/2026 06 AM PDT            1.77            917         -      Not Applicable
  09/06/2026 07 AM PDT            1.77            917         0      Not Applicable
  09/06/2026 08 AM PDT            1.77            917         0      Not Applicable
  09/06/2026 09 AM PDT            1.77            917         0      Not Applicable
  09/06/2026 10 AM PDT            1.77            917         0      Not Applicable
  09/06/2026 11 AM PDT            1.77            917         0      Not Applicable
  09/06/2026 12 PM PDT            1.77            917         0      Not Applicable
  09/06/2026 01 PM PDT            1.77            917         0      Not Applicable
  09/06/2026 02 PM PDT            1.77            917         0      Not Applicable
  09/06/2026 03 PM PDT            1.77            917         0      Not Applicable
  09/06/2026 04 PM PDT            1.77            917         0      Not Applicable
  09/06/2026 05 PM PDT            1.77            917         0      Not Applicable
  09/06/2026 06 PM PDT            1.77            917         0      Not Applicable
  09/06/2026 07 PM PDT            1.77            917         0      Not Applicable
  09/06/2026 08 PM PDT            1.78            922         +      Not Applicable
  09/06/2026 09 PM PDT            1.78            922         0      Not Applicable
  09/06/2026 10 PM PDT            1.78            922         0      Not Applicable
  09/06/2026 11 PM PDT            1.78            922         0      Not Applicable
  09/07/2026 12 AM PDT            1.78            922         0      Not Applicable
  09/07/2026 01 AM PDT            1.77            917         -      Not Applicable
  09/07/2026 02 AM PDT            1.77            917         0      Not Applicable
  09/07/2026 03 AM PDT            1.77            917         0      Not Applicable
  09/07/2026 04 AM PDT            1.77            917         0      Not Applicable
  09/07/2026 05 AM PDT            1.77            917         0      Not Applicable
  09/07/2026 06 AM PDT            1.77            917         0      Not Applicable
  09/07/2026 07 AM PDT            1.77            917         0      Not Applicable
  09/07/2026 08 AM PDT            1.77            917         0      Not Applicable
  09/07/2026 09 AM PDT            1.77            917         0      Not Applicable
  09/07/2026 10 AM PDT            1.77            917         0      Not Applicable
  09/07/2026 11 AM PDT            1.77            917         0      Not Applicable
  09/07/2026 12 PM PDT            1.77            917         0      Not Applicable
  09/07/2026 01 PM PDT            1.77            917         0      Not Applicable
  09/07/2026 02 PM PDT            1.77            917         0      Not Applicable
  09/07/2026 03 PM PDT            1.77            917         0      Not Applicable
  09/07/2026 04 PM PDT            1.77            917         0      Not Applicable
  09/07/2026 05 PM PDT            1.77            917         0      Not Applicable
  09/07/2026 06 PM PDT            1.77            917         0      Not Applicable
  09/07/2026 07 PM PDT            1.77            917         0      Not Applicable
  09/07/2026 08 PM PDT            1.77            917         0      Not Applicable
  09/07/2026 09 PM PDT            1.77            917         0      Not Applicable
  09/07/2026 10 PM PDT            1.77            917         0      Not Applicable
  09/07/2026 11 PM PDT            1.77            917         0      Not Applicable
  09/08/2026 12 AM PDT            1.77            917         0      Not Applicable
  09/08/2026 01 AM PDT            1.77            917         0      Not Applicable
  09/08/2026 02 AM PDT            1.77            917         0      Not Applicable
  09/08/2026 03 AM PDT            1.77            917         0      Not Applicable
  09/08/2026 04 AM PDT            1.77            917         0      Not Applicable
  09/08/2026 05 AM PDT            1.77            917         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.