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: Monday June 8th, 2026 08:00 AM CDT
River Status: Normal

  Height Flow
Currently 6.73 ft 81.9 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
  Sunday 06/07/2026 07:00 PM 5.50 66.70
  Monday 06/08/2026 01:00 AM 5.70 69.40
  Monday 06/08/2026 07:00 AM 6.10 74.70
  Monday 06/08/2026 01:00 PM 6.30 77.00
  Monday 06/08/2026 07:00 PM 6.60 80.40
  Tuesday 06/09/2026 01:00 AM 6.70 81.60

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Monday 06/08/2026 04:40 AM 6.81 82.80
Monday 06/08/2026 04:50 AM 6.81 82.80
Monday 06/08/2026 05:00 AM 6.80 82.70
Monday 06/08/2026 05:10 AM 6.83 83.10
Monday 06/08/2026 05:20 AM 6.79 82.60
Monday 06/08/2026 05:30 AM 6.78 82.50
Monday 06/08/2026 05:40 AM 6.63 80.80
Monday 06/08/2026 05:50 AM 6.77 82.40
Monday 06/08/2026 06:00 AM 6.79 82.60
Monday 06/08/2026 06:10 AM 6.79 82.60
Monday 06/08/2026 06:20 AM 6.78 82.50
Monday 06/08/2026 06:30 AM 6.79 82.60
Monday 06/08/2026 06:40 AM 6.79 82.60
Monday 06/08/2026 06:50 AM 6.84 83.20
Monday 06/08/2026 07:00 AM 6.80 82.70
Monday 06/08/2026 07:10 AM 6.81 82.80
Monday 06/08/2026 07:20 AM 6.79 82.60
Monday 06/08/2026 07:30 AM 6.81 82.80
Monday 06/08/2026 07:40 AM 6.75 82.10
Monday 06/08/2026 07:50 AM 6.79 82.60

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