Upper Yough Calculator

Upper Yough Flow & Release Planner

Live Friendsville flow, Deep Creek Lake level, SafeWaters release schedule parsing, high-water checks, Sang Run estimate, and bubble timing — all in one no-library embed.

Friendsville — Deep Creek Lake — Next release — Sang Run estimate —

Gauge data

USGS NWIS instantaneous values are used first, with USGS OGC latest-continuous fallback.

Youghiogheny River at Friendsville, MD

—cfs

Deep Creek Lake elevation

—ft

Deep Creek release schedule

Primary source is the current SafeWaters Deep Creek facility page; the old JSON endpoint is only a fallback.

Lake rule band check

Uses the same monthly rule-band table as your existing calculator and compares only HSD lake readings.

Today’s upper rule band Today’s lower rule band Classification

High-water release policy

Planner logic: >900 cfs and rising may cancel; >1350 cfs means no release.

Current Friendsville cfs   Flow is rising — auto-detected from Friendsville hydrograph

Flow calculator

Formula: (total cfs^0.332) × 0.2417

Friendsville gauge cfs Expected release cfs Total flow — Sang Run estimate — Always verify SafeWaters, lake rule band, generator status, weather, and the Friendsville hydrograph before committing.

Bubble timing after release ends

Auto-filled from the active or next release as soon as the schedule loads. Use the buttons above to refresh or override.

Put-in starts dropping— Bubble leaves put-in— At put-in +2h— Lost & Found leaves— Friendsville bubble leaves—

Provisional planning tool only. Water release schedules and flow levels can change without notice. Cross-check official sources and use paddler judgment.