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KLAMATH RIVER - IRON GATE (IRGC1)
| Latitude: 41.93º N | Longitude: 122.44º W | Elevation: 2162 Feet | | Forecast Type: Unofficial Location |
| Location: Siskiyou County in California | Bulletin Group: North Coast | River Group: Klamath |
| Issuance Time: | Apr 09 2026 at 12:57 PM PDT | Next Issuance: | Apr 10 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: 04/09/2026 at 01:01 PM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 04/09/2026 at 05:00 AM PDT
# Maximum Observed Stage: 2.51 Feet
# Maximum Observed Flow: 1403 cfs
#
# Earliest Date & Time of Maximum Forecast: 04/12/2026 at 09:00 AM PDT
# Maximum Forecast Stage: 2.95 Feet
# Maximum Forecast Flow: 1729 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
04/04/2026 01 PM PDT 2.41 1334 Not Applicable
04/04/2026 02 PM PDT 2.42 1341 + Not Applicable
04/04/2026 03 PM PDT 2.41 1334 - Not Applicable
04/04/2026 04 PM PDT 2.41 1334 0 Not Applicable
04/04/2026 05 PM PDT 2.40 1327 - Not Applicable
04/04/2026 06 PM PDT 2.40 1327 0 Not Applicable
04/04/2026 07 PM PDT 2.41 1334 + Not Applicable
04/04/2026 08 PM PDT 2.40 1327 - Not Applicable
04/04/2026 09 PM PDT 2.40 1327 0 Not Applicable
04/04/2026 10 PM PDT 2.40 1327 0 Not Applicable
04/04/2026 11 PM PDT 2.41 1334 + Not Applicable
04/05/2026 12 AM PDT 2.40 1327 - Not Applicable
04/05/2026 01 AM PDT 2.40 1327 0 Not Applicable
04/05/2026 02 AM PDT 2.41 1334 + Not Applicable
04/05/2026 03 AM PDT 2.40 1327 - Not Applicable
04/05/2026 04 AM PDT 2.40 1327 0 Not Applicable
04/05/2026 05 AM PDT 2.40 1327 0 Not Applicable
04/05/2026 06 AM PDT 2.40 1327 0 Not Applicable
04/05/2026 07 AM PDT 2.39 1320 - Not Applicable
04/05/2026 08 AM PDT 2.40 1327 + Not Applicable
04/05/2026 09 AM PDT 2.40 1327 0 Not Applicable
04/05/2026 10 AM PDT 2.40 1327 0 Not Applicable
04/05/2026 11 AM PDT 2.41 1334 + Not Applicable
04/05/2026 12 PM PDT 2.40 1327 - Not Applicable
04/05/2026 01 PM PDT 2.41 1334 + Not Applicable
04/05/2026 02 PM PDT 2.41 1334 0 Not Applicable
04/05/2026 03 PM PDT 2.41 1334 0 Not Applicable
04/05/2026 04 PM PDT 2.40 1327 - Not Applicable
04/05/2026 05 PM PDT 2.40 1327 0 Not Applicable
04/05/2026 06 PM PDT 2.41 1334 + Not Applicable
04/05/2026 07 PM PDT 2.40 1327 - Not Applicable
04/05/2026 08 PM PDT 2.40 1327 0 Not Applicable
04/05/2026 09 PM PDT 2.39 1320 - Not Applicable
04/05/2026 10 PM PDT 2.39 1320 0 Not Applicable
04/05/2026 11 PM PDT 2.41 1334 + Not Applicable
04/06/2026 12 AM PDT 2.41 1334 0 Not Applicable
04/06/2026 01 AM PDT 2.40 1327 - Not Applicable
04/06/2026 02 AM PDT 2.39 1320 - Not Applicable
04/06/2026 03 AM PDT 2.40 1327 + Not Applicable
04/06/2026 04 AM PDT 2.40 1327 0 Not Applicable
04/06/2026 05 AM PDT 2.40 1327 0 Not Applicable
04/06/2026 06 AM PDT 2.39 1320 - Not Applicable
04/06/2026 07 AM PDT 2.39 1320 0 Not Applicable
04/06/2026 08 AM PDT 2.38 1313 - Not Applicable
04/06/2026 09 AM PDT 2.39 1320 + Not Applicable
04/06/2026 10 AM PDT 2.39 1320 0 Not Applicable
04/06/2026 11 AM PDT 2.38 1313 - Not Applicable
04/06/2026 12 PM PDT 2.39 1320 + Not Applicable
04/06/2026 01 PM PDT 2.39 1320 0 Not Applicable
04/06/2026 02 PM PDT 2.39 1320 0 Not Applicable
04/06/2026 03 PM PDT 2.41 1334 + Not Applicable
04/06/2026 04 PM PDT 2.40 1327 - Not Applicable
04/06/2026 05 PM PDT 2.41 1334 + Not Applicable
04/06/2026 06 PM PDT 2.40 1327 - Not Applicable
04/06/2026 07 PM PDT 2.39 1320 - Not Applicable
04/06/2026 08 PM PDT 2.40 1327 + Not Applicable
04/06/2026 09 PM PDT 2.41 1334 + Not Applicable
04/06/2026 10 PM PDT 2.42 1341 + Not Applicable
04/06/2026 11 PM PDT 2.42 1341 0 Not Applicable
04/07/2026 12 AM PDT 2.42 1341 0 Not Applicable
04/07/2026 01 AM PDT 2.42 1341 0 Not Applicable
04/07/2026 02 AM PDT 2.43 1348 + Not Applicable
04/07/2026 03 AM PDT 2.43 1348 0 Not Applicable
04/07/2026 04 AM PDT 2.44 1354 + Not Applicable
04/07/2026 05 AM PDT 2.43 1348 - Not Applicable
04/07/2026 06 AM PDT 2.43 1348 0 Not Applicable
04/07/2026 07 AM PDT 2.43 1348 0 Not Applicable
04/07/2026 08 AM PDT 2.43 1348 0 Not Applicable
04/07/2026 09 AM PDT 2.44 1354 + Not Applicable
04/07/2026 10 AM PDT 2.44 1354 0 Not Applicable
04/07/2026 11 AM PDT 2.43 1348 - Not Applicable
04/07/2026 12 PM PDT 2.45 1361 + Not Applicable
04/07/2026 01 PM PDT 2.43 1348 - Not Applicable
04/07/2026 02 PM PDT 2.43 1348 0 Not Applicable
04/07/2026 03 PM PDT 2.45 1361 + Not Applicable
04/07/2026 04 PM PDT 2.44 1354 - Not Applicable
04/07/2026 05 PM PDT 2.44 1354 0 Not Applicable
04/07/2026 06 PM PDT 2.43 1348 - Not Applicable
04/07/2026 07 PM PDT 2.44 1354 + Not Applicable
04/07/2026 08 PM PDT 2.43 1348 - Not Applicable
04/07/2026 09 PM PDT 2.43 1348 0 Not Applicable
04/07/2026 10 PM PDT 2.47 1375 + Not Applicable
04/07/2026 11 PM PDT 2.48 1382 + Not Applicable
04/08/2026 12 AM PDT 2.48 1382 0 Not Applicable
04/08/2026 01 AM PDT 2.47 1375 - Not Applicable
04/08/2026 02 AM PDT 2.47 1375 0 Not Applicable
04/08/2026 03 AM PDT 2.47 1375 0 Not Applicable
04/08/2026 04 AM PDT 2.47 1375 0 Not Applicable
04/08/2026 05 AM PDT 2.48 1382 + Not Applicable
04/08/2026 06 AM PDT 2.46 1368 - Not Applicable
04/08/2026 07 AM PDT 2.46 1368 0 Not Applicable
04/08/2026 08 AM PDT 2.47 1375 + Not Applicable
04/08/2026 09 AM PDT 2.47 1375 0 Not Applicable
04/08/2026 10 AM PDT 2.45 1361 - Not Applicable
04/08/2026 11 AM PDT 2.47 1375 + Not Applicable
04/08/2026 12 PM PDT 2.47 1375 0 Not Applicable
04/08/2026 01 PM PDT 2.48 1382 + Not Applicable
04/08/2026 02 PM PDT 2.48 1382 0 Not Applicable
04/08/2026 03 PM PDT 2.48 1382 0 Not Applicable
04/08/2026 04 PM PDT 2.48 1382 0 Not Applicable
04/08/2026 05 PM PDT 2.48 1382 0 Not Applicable
04/08/2026 06 PM PDT 2.48 1382 0 Not Applicable
04/08/2026 07 PM PDT 2.49 1389 + Not Applicable
04/08/2026 08 PM PDT 2.50 1396 + Not Applicable
04/08/2026 09 PM PDT 2.48 1382 - Not Applicable
04/08/2026 10 PM PDT 2.48 1382 0 Not Applicable
04/08/2026 11 PM PDT 2.49 1389 + Not Applicable
04/09/2026 12 AM PDT 2.49 1389 0 Not Applicable
04/09/2026 01 AM PDT 2.51 1403 + Not Applicable
04/09/2026 02 AM PDT 2.50 1396 - Not Applicable
04/09/2026 03 AM PDT 2.48 1382 - Not Applicable
04/09/2026 04 AM PDT 2.50 1396 + Not Applicable
04/09/2026 05 AM PDT 2.51 1403 + Not Applicable
04/09/2026 06 AM PDT 2.49 1389 - Not Applicable
04/09/2026 07 AM PDT 2.47 1375 - Not Applicable
04/09/2026 08 AM PDT 2.47 1375 0 Not Applicable
04/09/2026 09 AM PDT 2.48 1382 + Not Applicable
04/09/2026 10 AM PDT 2.48 1382 0 Not Applicable
04/09/2026 11 AM PDT 2.47 1375 - Not Applicable
04/09/2026 12 PM PDT 2.46 1368 - Not Applicable
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
04/09/2026 01 PM PDT 2.46 1368 Not Applicable
04/09/2026 02 PM PDT 2.45 1361 - Not Applicable
04/09/2026 03 PM PDT 2.45 1361 0 Not Applicable
04/09/2026 04 PM PDT 2.45 1361 0 Not Applicable
04/09/2026 05 PM PDT 2.45 1361 0 Not Applicable
04/09/2026 06 PM PDT 2.46 1368 + Not Applicable
04/09/2026 07 PM PDT 2.48 1382 + Not Applicable
04/09/2026 08 PM PDT 2.49 1389 + Not Applicable
04/09/2026 09 PM PDT 2.51 1403 + Not Applicable
04/09/2026 10 PM PDT 2.53 1417 + Not Applicable
04/09/2026 11 PM PDT 2.54 1424 + Not Applicable
04/10/2026 12 AM PDT 2.57 1445 + Not Applicable
04/10/2026 01 AM PDT 2.59 1460 + Not Applicable
04/10/2026 02 AM PDT 2.61 1474 + Not Applicable
04/10/2026 03 AM PDT 2.63 1489 + Not Applicable
04/10/2026 04 AM PDT 2.66 1510 + Not Applicable
04/10/2026 05 AM PDT 2.68 1525 + Not Applicable
04/10/2026 06 AM PDT 2.70 1540 + Not Applicable
04/10/2026 07 AM PDT 2.71 1547 + Not Applicable
04/10/2026 08 AM PDT 2.73 1562 + Not Applicable
04/10/2026 09 AM PDT 2.74 1569 + Not Applicable
04/10/2026 10 AM PDT 2.76 1584 + Not Applicable
04/10/2026 11 AM PDT 2.77 1591 + Not Applicable
04/10/2026 12 PM PDT 2.78 1599 + Not Applicable
04/10/2026 01 PM PDT 2.78 1599 0 Not Applicable
04/10/2026 02 PM PDT 2.79 1606 + Not Applicable
04/10/2026 03 PM PDT 2.80 1614 + Not Applicable
04/10/2026 04 PM PDT 2.81 1621 + Not Applicable
04/10/2026 05 PM PDT 2.82 1629 + Not Applicable
04/10/2026 06 PM PDT 2.83 1637 + Not Applicable
04/10/2026 07 PM PDT 2.84 1644 + Not Applicable
04/10/2026 08 PM PDT 2.85 1652 + Not Applicable
04/10/2026 09 PM PDT 2.86 1659 + Not Applicable
04/10/2026 10 PM PDT 2.87 1667 + Not Applicable
04/10/2026 11 PM PDT 2.87 1667 0 Not Applicable
04/11/2026 12 AM PDT 2.88 1675 + Not Applicable
04/11/2026 01 AM PDT 2.88 1675 0 Not Applicable
04/11/2026 02 AM PDT 2.88 1675 0 Not Applicable
04/11/2026 03 AM PDT 2.88 1675 0 Not Applicable
04/11/2026 04 AM PDT 2.89 1682 + Not Applicable
04/11/2026 05 AM PDT 2.89 1682 0 Not Applicable
04/11/2026 06 AM PDT 2.89 1682 0 Not Applicable
04/11/2026 07 AM PDT 2.90 1690 + Not Applicable
04/11/2026 08 AM PDT 2.90 1690 0 Not Applicable
04/11/2026 09 AM PDT 2.90 1690 0 Not Applicable
04/11/2026 10 AM PDT 2.90 1690 0 Not Applicable
04/11/2026 11 AM PDT 2.90 1690 0 Not Applicable
04/11/2026 12 PM PDT 2.90 1690 0 Not Applicable
04/11/2026 01 PM PDT 2.90 1690 0 Not Applicable
04/11/2026 02 PM PDT 2.90 1690 0 Not Applicable
04/11/2026 03 PM PDT 2.90 1690 0 Not Applicable
04/11/2026 04 PM PDT 2.91 1698 + Not Applicable
04/11/2026 05 PM PDT 2.91 1698 0 Not Applicable
04/11/2026 06 PM PDT 2.92 1706 + Not Applicable
04/11/2026 07 PM PDT 2.92 1706 0 Not Applicable
04/11/2026 08 PM PDT 2.93 1713 + Not Applicable
04/11/2026 09 PM PDT 2.94 1721 + Not Applicable
04/11/2026 10 PM PDT 2.94 1721 0 Not Applicable
04/11/2026 11 PM PDT 2.94 1721 0 Not Applicable
04/12/2026 12 AM PDT 2.94 1721 0 Not Applicable
04/12/2026 01 AM PDT 2.94 1721 0 Not Applicable
04/12/2026 02 AM PDT 2.94 1721 0 Not Applicable
04/12/2026 03 AM PDT 2.94 1721 0 Not Applicable
04/12/2026 04 AM PDT 2.94 1721 0 Not Applicable
04/12/2026 05 AM PDT 2.94 1721 0 Not Applicable
04/12/2026 06 AM PDT 2.94 1721 0 Not Applicable
04/12/2026 07 AM PDT 2.94 1721 0 Not Applicable
04/12/2026 08 AM PDT 2.94 1721 0 Not Applicable
04/12/2026 09 AM PDT 2.95 1729 + Not Applicable
04/12/2026 10 AM PDT 2.95 1729 0 Not Applicable
04/12/2026 11 AM PDT 2.95 1729 0 Not Applicable
04/12/2026 12 PM PDT 2.94 1721 - Not Applicable
04/12/2026 01 PM PDT 2.94 1721 0 Not Applicable
04/12/2026 02 PM PDT 2.94 1721 0 Not Applicable
04/12/2026 03 PM PDT 2.94 1721 0 Not Applicable
04/12/2026 04 PM PDT 2.94 1721 0 Not Applicable
04/12/2026 05 PM PDT 2.94 1721 0 Not Applicable
04/12/2026 06 PM PDT 2.94 1721 0 Not Applicable
04/12/2026 07 PM PDT 2.94 1721 0 Not Applicable
04/12/2026 08 PM PDT 2.94 1721 0 Not Applicable
04/12/2026 09 PM PDT 2.94 1721 0 Not Applicable
04/12/2026 10 PM PDT 2.94 1721 0 Not Applicable
04/12/2026 11 PM PDT 2.94 1721 0 Not Applicable
04/13/2026 12 AM PDT 2.94 1721 0 Not Applicable
04/13/2026 01 AM PDT 2.94 1721 0 Not Applicable
04/13/2026 02 AM PDT 2.94 1721 0 Not Applicable
04/13/2026 03 AM PDT 2.94 1721 0 Not Applicable
04/13/2026 04 AM PDT 2.94 1721 0 Not Applicable
04/13/2026 05 AM PDT 2.94 1721 0 Not Applicable
04/13/2026 06 AM PDT 2.94 1721 0 Not Applicable
04/13/2026 07 AM PDT 2.94 1721 0 Not Applicable
04/13/2026 08 AM PDT 2.94 1721 0 Not Applicable
04/13/2026 09 AM PDT 2.93 1713 - Not Applicable
04/13/2026 10 AM PDT 2.93 1713 0 Not Applicable
04/13/2026 11 AM PDT 2.93 1713 0 Not Applicable
04/13/2026 12 PM PDT 2.92 1706 - Not Applicable
04/13/2026 01 PM PDT 2.92 1706 0 Not Applicable
04/13/2026 02 PM PDT 2.92 1706 0 Not Applicable
04/13/2026 03 PM PDT 2.92 1706 0 Not Applicable
04/13/2026 04 PM PDT 2.91 1698 - Not Applicable
04/13/2026 05 PM PDT 2.91 1698 0 Not Applicable
04/13/2026 06 PM PDT 2.91 1698 0 Not Applicable
04/13/2026 07 PM PDT 2.90 1690 - Not Applicable
04/13/2026 08 PM PDT 2.90 1690 0 Not Applicable
04/13/2026 09 PM PDT 2.90 1690 0 Not Applicable
04/13/2026 10 PM PDT 2.90 1690 0 Not Applicable
04/13/2026 11 PM PDT 2.90 1690 0 Not Applicable
04/14/2026 12 AM PDT 2.89 1682 - Not Applicable
04/14/2026 01 AM PDT 2.89 1682 0 Not Applicable
04/14/2026 02 AM PDT 2.89 1682 0 Not Applicable
04/14/2026 03 AM PDT 2.89 1682 0 Not Applicable
04/14/2026 04 AM PDT 2.89 1682 0 Not Applicable
04/14/2026 05 AM PDT 2.89 1682 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.
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