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ID9 associated gaugesSource-backed records

Big Lost River

Linked station records, forecasts, and alerts stay source-specific so the river page can show context without flattening it into a single safety score.

This page does not create a single river-wide condition or safety rating.

Associated gauges9Station-level records
Gauges with readings9Observation-capable records
Forecast availability11 linked forecast gauge
Last source updateAvailableJun 18, 2026 at 12:30 AM CDT

Current gauges on Big Lost River

Station readings stay source-specific and compact for scanning.

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NWS / NWPS LESI1

Big Lost River at Leslie

ID

Stale

Latest public reading

381 cfs

Observed May 14, 2026 at 2:45 AM CDT

Observation 55136 minutes old

NWS / NWPS ARCI1

Big Lost River near Arco

ID

Stale

Latest public reading

2.01 ft

Observed Jun 12, 2026 at 3:00 PM CDT

Observation 12641 minutes old

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