Mississippi River At Quincy Lock And Dam 21

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Hydrograph

Stage Color Key
16 ft - Near Flood 18 ft - Minor Flood 21 ft - Moderate Flood 25 ft - Major Flood

Latest Observation: Saturday April 25th, 2026 05:00 AM CDT
River Status: Near Flood Stage

  Height Flow
Currently 17.64 ft 229 kcfs
Record 31.3 ft 428694 cfs

Forecast
  Date (CDT) Stage (ft) Flow (kcfs)
  Wednesday 12/31/1969 06:00 PM 0.00 N/A
  Saturday 04/25/2026 07:00 AM 17.60 228.00
  Saturday 04/25/2026 01:00 PM 17.50 227.00
  Saturday 04/25/2026 07:00 PM 17.50 227.00
  Sunday 04/26/2026 01:00 AM 17.50 227.00
  Sunday 04/26/2026 07:00 AM 17.50 227.00
  Sunday 04/26/2026 01:00 PM 17.40 225.00

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Saturday 04/25/2026 01:40 AM 17.64 229.00
Saturday 04/25/2026 01:50 AM 17.67 230.00
Saturday 04/25/2026 02:00 AM 17.65 229.00
Saturday 04/25/2026 02:10 AM 17.66 230.00
Saturday 04/25/2026 02:20 AM 17.64 229.00
Saturday 04/25/2026 02:30 AM 17.65 229.00
Saturday 04/25/2026 02:40 AM 17.64 229.00
Saturday 04/25/2026 02:50 AM 17.66 230.00
Saturday 04/25/2026 03:00 AM 17.63 229.00
Saturday 04/25/2026 03:10 AM 17.65 229.00
Saturday 04/25/2026 03:20 AM 17.68 230.00
Saturday 04/25/2026 03:30 AM 17.65 229.00
Saturday 04/25/2026 03:40 AM 17.64 229.00
Saturday 04/25/2026 03:50 AM 17.67 230.00
Saturday 04/25/2026 04:00 AM 17.64 229.00
Saturday 04/25/2026 04:10 AM 17.64 229.00
Saturday 04/25/2026 04:20 AM 17.64 229.00
Saturday 04/25/2026 04:30 AM 17.61 229.00
Saturday 04/25/2026 04:40 AM 17.63 229.00
Saturday 04/25/2026 04:50 AM 17.64 229.00

Data Courtesy of the Advanced Hydrologic Prediction Service
Script Courtesy of Dennis at East Masonville Weather with mods by Saratoga-weather.org