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: May 02 2026 at 8:44 AM PDTNext Issuance: May 03 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: Klamath River - Iron Gate (IRGC1)
#
# File Generation Time:  05/02/2026 at 08:46 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/27/2026 at 01:00 PM PDT
# Maximum Observed Stage:                       2.44 Feet
# Maximum Observed Flow:                        1354 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/05/2026 at 02:00 AM PDT
# Maximum Forecast Stage:                       2.43 Feet
# Maximum Forecast Flow:                        1348 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/27/2026 08 AM PDT            2.43           1348                Not Applicable
  04/27/2026 09 AM PDT            2.42           1341         -      Not Applicable
  04/27/2026 10 AM PDT            2.42           1341         0      Not Applicable
  04/27/2026 11 AM PDT            2.43           1348         +      Not Applicable
  04/27/2026 12 PM PDT            2.42           1341         -      Not Applicable
  04/27/2026 01 PM PDT            2.44           1354         +      Not Applicable
  04/27/2026 02 PM PDT            2.43           1348         -      Not Applicable
  04/27/2026 03 PM PDT            2.43           1348         0      Not Applicable
  04/27/2026 04 PM PDT            2.43           1348         0      Not Applicable
  04/27/2026 05 PM PDT            2.42           1341         -      Not Applicable
  04/27/2026 06 PM PDT            2.43           1348         +      Not Applicable
  04/27/2026 07 PM PDT            2.40           1327         -      Not Applicable
  04/27/2026 08 PM PDT            2.39           1320         -      Not Applicable
  04/27/2026 09 PM PDT            2.39           1320         0      Not Applicable
  04/27/2026 10 PM PDT            2.39           1320         0      Not Applicable
  04/27/2026 11 PM PDT            2.39           1320         0      Not Applicable
  04/28/2026 12 AM PDT            2.40           1327         +      Not Applicable
  04/28/2026 01 AM PDT            2.40           1327         0      Not Applicable
  04/28/2026 02 AM PDT            2.39           1320         -      Not Applicable
  04/28/2026 03 AM PDT            2.39           1320         0      Not Applicable
  04/28/2026 04 AM PDT            2.40           1327         +      Not Applicable
  04/28/2026 05 AM PDT            2.39           1320         -      Not Applicable
  04/28/2026 06 AM PDT            2.38           1313         -      Not Applicable
  04/28/2026 07 AM PDT            2.39           1320         +      Not Applicable
  04/28/2026 08 AM PDT            2.39           1320         0      Not Applicable
  04/28/2026 09 AM PDT            2.39           1320         0      Not Applicable
  04/28/2026 10 AM PDT            2.39           1320         0      Not Applicable
  04/28/2026 11 AM PDT            2.38           1313         -      Not Applicable
  04/28/2026 12 PM PDT            2.39           1320         +      Not Applicable
  04/28/2026 01 PM PDT            2.39           1320         0      Not Applicable
  04/28/2026 02 PM PDT            2.38           1313         -      Not Applicable
  04/28/2026 03 PM PDT            2.39           1320         +      Not Applicable
  04/28/2026 04 PM PDT            2.38           1313         -      Not Applicable
  04/28/2026 05 PM PDT            2.39           1320         +      Not Applicable
  04/28/2026 06 PM PDT            2.38           1313         -      Not Applicable
  04/28/2026 07 PM PDT            2.38           1313         0      Not Applicable
  04/28/2026 08 PM PDT            2.38           1313         0      Not Applicable
  04/28/2026 09 PM PDT            2.38           1313         0      Not Applicable
  04/28/2026 10 PM PDT            2.38           1313         0      Not Applicable
  04/28/2026 11 PM PDT            2.38           1313         0      Not Applicable
  04/29/2026 12 AM PDT            2.38           1313         0      Not Applicable
  04/29/2026 01 AM PDT            2.38           1313         0      Not Applicable
  04/29/2026 02 AM PDT            2.39           1320         +      Not Applicable
  04/29/2026 03 AM PDT            2.39           1320         0      Not Applicable
  04/29/2026 04 AM PDT            2.39           1320         0      Not Applicable
  04/29/2026 05 AM PDT            2.39           1320         0      Not Applicable
  04/29/2026 06 AM PDT            2.38           1313         -      Not Applicable
  04/29/2026 07 AM PDT            2.39           1320         +      Not Applicable
  04/29/2026 08 AM PDT            2.39           1320         0      Not Applicable
  04/29/2026 09 AM PDT            2.37           1307         -      Not Applicable
  04/29/2026 10 AM PDT            2.37           1307         0      Not Applicable
  04/29/2026 11 AM PDT            2.38           1313         +      Not Applicable
  04/29/2026 12 PM PDT            2.38           1313         0      Not Applicable
  04/29/2026 01 PM PDT            2.38           1313         0      Not Applicable
  04/29/2026 02 PM PDT            2.39           1320         +      Not Applicable
  04/29/2026 03 PM PDT            2.38           1313         -      Not Applicable
  04/29/2026 04 PM PDT            2.38           1313         0      Not Applicable
  04/29/2026 05 PM PDT            2.39           1320         +      Not Applicable
  04/29/2026 06 PM PDT            2.38           1313         -      Not Applicable
  04/29/2026 07 PM PDT            2.38           1313         0      Not Applicable
  04/29/2026 08 PM PDT            2.37           1307         -      Not Applicable
  04/29/2026 09 PM PDT            2.38           1313         +      Not Applicable
  04/29/2026 10 PM PDT            2.37           1307         -      Not Applicable
  04/29/2026 11 PM PDT            2.37           1307         0      Not Applicable
  04/30/2026 12 AM PDT            2.37           1307         0      Not Applicable
  04/30/2026 01 AM PDT            2.38           1313         +      Not Applicable
  04/30/2026 02 AM PDT            2.37           1307         -      Not Applicable
  04/30/2026 03 AM PDT            2.37           1307         0      Not Applicable
  04/30/2026 04 AM PDT            2.37           1307         0      Not Applicable
  04/30/2026 05 AM PDT            2.37           1307         0      Not Applicable
  04/30/2026 06 AM PDT            2.37           1307         0      Not Applicable
  04/30/2026 07 AM PDT            2.37           1307         0      Not Applicable
  04/30/2026 08 AM PDT            2.36           1300         -      Not Applicable
  04/30/2026 09 AM PDT            2.37           1307         +      Not Applicable
  04/30/2026 10 AM PDT            2.37           1307         0      Not Applicable
  04/30/2026 11 AM PDT            2.37           1307         0      Not Applicable
  04/30/2026 12 PM PDT            2.38           1313         +      Not Applicable
  04/30/2026 01 PM PDT            2.38           1313         0      Not Applicable
  04/30/2026 02 PM PDT            2.38           1313         0      Not Applicable
  04/30/2026 03 PM PDT            2.38           1313         0      Not Applicable
  04/30/2026 04 PM PDT            2.38           1313         0      Not Applicable
  04/30/2026 05 PM PDT            2.38           1313         0      Not Applicable
  04/30/2026 06 PM PDT            2.38           1313         0      Not Applicable
  04/30/2026 07 PM PDT            2.38           1313         0      Not Applicable
  04/30/2026 08 PM PDT            2.38           1313         0      Not Applicable
  04/30/2026 09 PM PDT            2.38           1313         0      Not Applicable
  04/30/2026 10 PM PDT            2.38           1313         0      Not Applicable
  04/30/2026 11 PM PDT            2.37           1307         -      Not Applicable
  05/01/2026 12 AM PDT            2.36           1300         -      Not Applicable
  05/01/2026 01 AM PDT            2.37           1307         +      Not Applicable
  05/01/2026 02 AM PDT            2.36           1300         -      Not Applicable
  05/01/2026 03 AM PDT            2.36           1300         0      Not Applicable
  05/01/2026 04 AM PDT            2.37           1307         +      Not Applicable
  05/01/2026 05 AM PDT            2.37           1307         0      Not Applicable
  05/01/2026 06 AM PDT            2.37           1307         0      Not Applicable
  05/01/2026 07 AM PDT            2.36           1300         -      Not Applicable
  05/01/2026 08 AM PDT            2.37           1307         +      Not Applicable
  05/01/2026 09 AM PDT            2.37           1307         0      Not Applicable
  05/01/2026 10 AM PDT            2.37           1307         0      Not Applicable
  05/01/2026 11 AM PDT            2.37           1307         0      Not Applicable
  05/01/2026 12 PM PDT            2.36           1300         -      Not Applicable
  05/01/2026 01 PM PDT            2.37           1307         +      Not Applicable
  05/01/2026 02 PM PDT            2.37           1307         0      Not Applicable
  05/01/2026 03 PM PDT            2.37           1307         0      Not Applicable
  05/01/2026 04 PM PDT            2.38           1313         +      Not Applicable
  05/01/2026 05 PM PDT            2.37           1307         -      Not Applicable
  05/01/2026 06 PM PDT            2.37           1307         0      Not Applicable
  05/01/2026 07 PM PDT            2.37           1307         0      Not Applicable
  05/01/2026 08 PM PDT            2.38           1313         +      Not Applicable
  05/01/2026 09 PM PDT            2.37           1307         -      Not Applicable
  05/01/2026 10 PM PDT            2.35           1293         -      Not Applicable
  05/01/2026 11 PM PDT            2.36           1300         +      Not Applicable
  05/02/2026 12 AM PDT            2.36           1300         0      Not Applicable
  05/02/2026 01 AM PDT            2.36           1300         0      Not Applicable
  05/02/2026 02 AM PDT            2.37           1307         +      Not Applicable
  05/02/2026 03 AM PDT            2.36           1300         -      Not Applicable
  05/02/2026 04 AM PDT            2.37           1307         +      Not Applicable
  05/02/2026 05 AM PDT            2.36           1300         -      Not Applicable
  05/02/2026 06 AM PDT            2.36           1300         0      Not Applicable
  05/02/2026 07 AM PDT            2.36           1300         0      Not Applicable
  05/02/2026 08 AM PDT            2.36           1300         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/02/2026 09 AM PDT            2.36           1300                Not Applicable
  05/02/2026 10 AM PDT            2.36           1300         0      Not Applicable
  05/02/2026 11 AM PDT            2.36           1300         0      Not Applicable
  05/02/2026 12 PM PDT            2.36           1300         0      Not Applicable
  05/02/2026 01 PM PDT            2.36           1300         0      Not Applicable
  05/02/2026 02 PM PDT            2.36           1300         0      Not Applicable
  05/02/2026 03 PM PDT            2.36           1300         0      Not Applicable
  05/02/2026 04 PM PDT            2.36           1300         0      Not Applicable
  05/02/2026 05 PM PDT            2.36           1300         0      Not Applicable
  05/02/2026 06 PM PDT            2.36           1300         0      Not Applicable
  05/02/2026 07 PM PDT            2.36           1300         0      Not Applicable
  05/02/2026 08 PM PDT            2.36           1300         0      Not Applicable
  05/02/2026 09 PM PDT            2.36           1300         0      Not Applicable
  05/02/2026 10 PM PDT            2.36           1300         0      Not Applicable
  05/02/2026 11 PM PDT            2.36           1300         0      Not Applicable
  05/03/2026 12 AM PDT            2.36           1300         0      Not Applicable
  05/03/2026 01 AM PDT            2.36           1300         0      Not Applicable
  05/03/2026 02 AM PDT            2.36           1300         0      Not Applicable
  05/03/2026 03 AM PDT            2.36           1300         0      Not Applicable
  05/03/2026 04 AM PDT            2.36           1300         0      Not Applicable
  05/03/2026 05 AM PDT            2.36           1300         0      Not Applicable
  05/03/2026 06 AM PDT            2.36           1300         0      Not Applicable
  05/03/2026 07 AM PDT            2.36           1300         0      Not Applicable
  05/03/2026 08 AM PDT            2.36           1300         0      Not Applicable
  05/03/2026 09 AM PDT            2.36           1300         0      Not Applicable
  05/03/2026 10 AM PDT            2.36           1300         0      Not Applicable
  05/03/2026 11 AM PDT            2.36           1300         0      Not Applicable
  05/03/2026 12 PM PDT            2.36           1300         0      Not Applicable
  05/03/2026 01 PM PDT            2.36           1300         0      Not Applicable
  05/03/2026 02 PM PDT            2.37           1307         +      Not Applicable
  05/03/2026 03 PM PDT            2.37           1307         0      Not Applicable
  05/03/2026 04 PM PDT            2.37           1307         0      Not Applicable
  05/03/2026 05 PM PDT            2.37           1307         0      Not Applicable
  05/03/2026 06 PM PDT            2.37           1307         0      Not Applicable
  05/03/2026 07 PM PDT            2.38           1313         +      Not Applicable
  05/03/2026 08 PM PDT            2.38           1313         0      Not Applicable
  05/03/2026 09 PM PDT            2.38           1313         0      Not Applicable
  05/03/2026 10 PM PDT            2.39           1320         +      Not Applicable
  05/03/2026 11 PM PDT            2.39           1320         0      Not Applicable
  05/04/2026 12 AM PDT            2.40           1327         +      Not Applicable
  05/04/2026 01 AM PDT            2.40           1327         0      Not Applicable
  05/04/2026 02 AM PDT            2.41           1334         +      Not Applicable
  05/04/2026 03 AM PDT            2.41           1334         0      Not Applicable
  05/04/2026 04 AM PDT            2.41           1334         0      Not Applicable
  05/04/2026 05 AM PDT            2.41           1334         0      Not Applicable
  05/04/2026 06 AM PDT            2.41           1334         0      Not Applicable
  05/04/2026 07 AM PDT            2.41           1334         0      Not Applicable
  05/04/2026 08 AM PDT            2.41           1334         0      Not Applicable
  05/04/2026 09 AM PDT            2.40           1327         -      Not Applicable
  05/04/2026 10 AM PDT            2.40           1327         0      Not Applicable
  05/04/2026 11 AM PDT            2.40           1327         0      Not Applicable
  05/04/2026 12 PM PDT            2.40           1327         0      Not Applicable
  05/04/2026 01 PM PDT            2.40           1327         0      Not Applicable
  05/04/2026 02 PM PDT            2.40           1327         0      Not Applicable
  05/04/2026 03 PM PDT            2.40           1327         0      Not Applicable
  05/04/2026 04 PM PDT            2.40           1327         0      Not Applicable
  05/04/2026 05 PM PDT            2.40           1327         0      Not Applicable
  05/04/2026 06 PM PDT            2.40           1327         0      Not Applicable
  05/04/2026 07 PM PDT            2.41           1334         +      Not Applicable
  05/04/2026 08 PM PDT            2.41           1334         0      Not Applicable
  05/04/2026 09 PM PDT            2.41           1334         0      Not Applicable
  05/04/2026 10 PM PDT            2.42           1341         +      Not Applicable
  05/04/2026 11 PM PDT            2.42           1341         0      Not Applicable
  05/05/2026 12 AM PDT            2.42           1341         0      Not Applicable
  05/05/2026 01 AM PDT            2.42           1341         0      Not Applicable
  05/05/2026 02 AM PDT            2.43           1348         +      Not Applicable
  05/05/2026 03 AM PDT            2.43           1348         0      Not Applicable
  05/05/2026 04 AM PDT            2.43           1348         0      Not Applicable
  05/05/2026 05 AM PDT            2.43           1348         0      Not Applicable
  05/05/2026 06 AM PDT            2.42           1341         -      Not Applicable
  05/05/2026 07 AM PDT            2.42           1341         0      Not Applicable
  05/05/2026 08 AM PDT            2.42           1341         0      Not Applicable
  05/05/2026 09 AM PDT            2.42           1341         0      Not Applicable
  05/05/2026 10 AM PDT            2.41           1334         -      Not Applicable
  05/05/2026 11 AM PDT            2.41           1334         0      Not Applicable
  05/05/2026 12 PM PDT            2.41           1334         0      Not Applicable
  05/05/2026 01 PM PDT            2.40           1327         -      Not Applicable
  05/05/2026 02 PM PDT            2.40           1327         0      Not Applicable
  05/05/2026 03 PM PDT            2.40           1327         0      Not Applicable
  05/05/2026 04 PM PDT            2.40           1327         0      Not Applicable
  05/05/2026 05 PM PDT            2.40           1327         0      Not Applicable
  05/05/2026 06 PM PDT            2.40           1327         0      Not Applicable
  05/05/2026 07 PM PDT            2.39           1320         -      Not Applicable
  05/05/2026 08 PM PDT            2.39           1320         0      Not Applicable
  05/05/2026 09 PM PDT            2.39           1320         0      Not Applicable
  05/05/2026 10 PM PDT            2.39           1320         0      Not Applicable
  05/05/2026 11 PM PDT            2.39           1320         0      Not Applicable
  05/06/2026 12 AM PDT            2.39           1320         0      Not Applicable
  05/06/2026 01 AM PDT            2.38           1313         -      Not Applicable
  05/06/2026 02 AM PDT            2.38           1313         0      Not Applicable
  05/06/2026 03 AM PDT            2.38           1313         0      Not Applicable
  05/06/2026 04 AM PDT            2.38           1313         0      Not Applicable
  05/06/2026 05 AM PDT            2.38           1313         0      Not Applicable
  05/06/2026 06 AM PDT            2.38           1313         0      Not Applicable
  05/06/2026 07 AM PDT            2.38           1313         0      Not Applicable
  05/06/2026 08 AM PDT            2.38           1313         0      Not Applicable
  05/06/2026 09 AM PDT            2.38           1313         0      Not Applicable
  05/06/2026 10 AM PDT            2.38           1313         0      Not Applicable
  05/06/2026 11 AM PDT            2.38           1313         0      Not Applicable
  05/06/2026 12 PM PDT            2.38           1313         0      Not Applicable
  05/06/2026 01 PM PDT            2.38           1313         0      Not Applicable
  05/06/2026 02 PM PDT            2.38           1313         0      Not Applicable
  05/06/2026 03 PM PDT            2.38           1313         0      Not Applicable
  05/06/2026 04 PM PDT            2.38           1313         0      Not Applicable
  05/06/2026 05 PM PDT            2.38           1313         0      Not Applicable
  05/06/2026 06 PM PDT            2.38           1313         0      Not Applicable
  05/06/2026 07 PM PDT            2.38           1313         0      Not Applicable
  05/06/2026 08 PM PDT            2.38           1313         0      Not Applicable
  05/06/2026 09 PM PDT            2.38           1313         0      Not Applicable
  05/06/2026 10 PM PDT            2.38           1313         0      Not Applicable
  05/06/2026 11 PM PDT            2.37           1307         -      Not Applicable
  05/07/2026 12 AM PDT            2.37           1307         0      Not Applicable
  05/07/2026 01 AM PDT            2.37           1307         0      Not Applicable
  05/07/2026 02 AM PDT            2.37           1307         0      Not Applicable
  05/07/2026 03 AM PDT            2.38           1313         +      Not Applicable
  05/07/2026 04 AM PDT            2.38           1313         0      Not Applicable
  05/07/2026 05 AM PDT            2.38           1313         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.