CNRFC - Ensemble Products

Short-Range Products (hourly timestep)

Long-Range Products (daily timestep)

Location:

KLAMATH RIVER - ORLEANS (ONSC1)

Latitude: 41.30º N	Longitude: 123.54º W	Elevation: 430 Feet
Location: Humboldt County in California		Bulletin Group: North Coast		River Group: Klamath

Issuance Time:

Apr 20, 2026 at 7:21 AM PDT

Action/Monitor: 32.0 Feet

Minor Flood: 38.0 Feet

Moderate Flood: 43.0 Feet

Major Flood: 48.0 Feet

Please Note:

Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty.

Threshold Exceedance Plot Product Information

CSV Ensemble Files (Data in kcfs): Forecast Group | ONSC1

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		Official Forecast (Deterministic)

		Prob. of Threshold Exceedance
		Model Traces

What information is considered in this forecast?

Verification / Historical Plots
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Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
43.0 Feet	Flood waters are likely to cover Highway 96 in numerous locations and will threaten residences and businesses in and around Orleans including Sandy Bar Cabins, Riverside Trailer Park and the downtown area. All persons in the vicinity of the river should take appropriate action and move to higher ground if necessary.
40.0 Feet	Extensive flooding of areas south of Highway 96 near Orleans, Highway 96 north of the bridge at Orleans, at Ishi Pishi Bar, and near Slate Creek. Flooding of the firehouse and other buildings on the southwest side of Orleans is expected. Flooding of Highway 96 in Orleans is possible.
38.0 Feet	Extensive flooding of low lying areas south of Highway 96 near Orleans and of the highway itself north of the bridge at Orleans. Flooding is likely near Ishi Pishi Bar and Slate Creek. Water may enter the fire house and other buildings on the southwest side of Orleans.
37.0 Feet	Flooding in low lying areas south of Highway 96 near Orleans and on the highway itself north of the bridge at Orleans. There may also be flooding of Highway 96 at Ishi Pishi Bar.
35.0 Feet	Flooding is likely in lower areas south of Highway 96 near Orleans and on the highway itself north of the bridge at Orleans. Flooding is possible on Highway 96 near Ishi Pishi Bar.
34.0 Feet	Flooding is possible along Highway 96 north of the bridge at Orleans and in adjacent low-lying areas.