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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:

Jun 30, 2025 at 9:06 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
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What information is considered in this forecast?

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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 fire house 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 will occur. 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.

Official 7 Day National Weather Service Forecast (CAZ105)

Today: Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Highs 87 to 102.

Tonight: Mostly cloudy in the evening then becoming partly cloudy. Lows 52 to 62.

Wednesday: Sunny. Highs 83 to 98.

Wednesday Night: Partly cloudy. Lows 48 to 58.

Thursday: Mostly sunny. Highs 75 to 90.

Thursday Night and Independence Day: Partly cloudy. Lows 45 to 55. Highs 75 to 90.

Friday Night through Sunday Night: Mostly clear. Lows 48 to 58. Highs 80 to 95.

Monday: Sunny. Highs 84 to 99.

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