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 March 28th, 2026 04:30 AM CDT
River Status: Normal

  Height Flow
Currently 8.74 ft 106 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
  Friday 03/27/2026 07:00 PM 8.20 99.40
  Saturday 03/28/2026 01:00 AM 8.30 101.00
  Saturday 03/28/2026 07:00 AM 8.40 102.00
  Saturday 03/28/2026 01:00 PM 8.50 103.00
  Saturday 03/28/2026 07:00 PM 8.60 104.00
  Sunday 03/29/2026 01:00 AM 8.70 105.00

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Saturday 03/28/2026 01:10 AM 8.85 107.00
Saturday 03/28/2026 01:20 AM 8.85 107.00
Saturday 03/28/2026 01:30 AM 8.86 107.00
Saturday 03/28/2026 01:40 AM 8.83 107.00
Saturday 03/28/2026 01:50 AM 8.82 107.00
Saturday 03/28/2026 02:00 AM 8.83 107.00
Saturday 03/28/2026 02:10 AM 8.79 106.00
Saturday 03/28/2026 02:20 AM 8.79 106.00
Saturday 03/28/2026 02:30 AM 8.81 107.00
Saturday 03/28/2026 02:40 AM 8.79 106.00
Saturday 03/28/2026 02:50 AM 8.81 107.00
Saturday 03/28/2026 03:00 AM 8.76 106.00
Saturday 03/28/2026 03:10 AM 8.77 106.00
Saturday 03/28/2026 03:20 AM 8.75 106.00
Saturday 03/28/2026 03:30 AM 8.77 106.00
Saturday 03/28/2026 03:40 AM 8.77 106.00
Saturday 03/28/2026 03:50 AM 8.83 107.00
Saturday 03/28/2026 04:00 AM 8.77 106.00
Saturday 03/28/2026 04:10 AM 8.64 105.00
Saturday 03/28/2026 04:20 AM 8.76 106.00

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