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 May 30th, 2026 06:00 AM CDT
River Status: Normal

  Height Flow
Currently 7.29 ft 88.5 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 05/29/2026 07:00 PM 7.60 92.20
  Saturday 05/30/2026 01:00 AM 7.60 92.20
  Saturday 05/30/2026 07:00 AM 7.60 92.20
  Saturday 05/30/2026 01:00 PM 7.50 91.00
  Saturday 05/30/2026 07:00 PM 7.50 91.00
  Sunday 05/31/2026 01:00 AM 7.40 89.80

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Saturday 05/30/2026 02:40 AM 7.27 88.20
Saturday 05/30/2026 02:50 AM 7.29 88.50
Saturday 05/30/2026 03:00 AM 7.32 88.80
Saturday 05/30/2026 03:10 AM 7.30 88.60
Saturday 05/30/2026 03:20 AM 7.30 88.60
Saturday 05/30/2026 03:30 AM 7.34 89.10
Saturday 05/30/2026 03:40 AM 7.32 88.80
Saturday 05/30/2026 03:50 AM 7.29 88.50
Saturday 05/30/2026 04:00 AM 7.27 88.20
Saturday 05/30/2026 04:10 AM 7.30 88.60
Saturday 05/30/2026 04:20 AM 7.29 88.50
Saturday 05/30/2026 04:30 AM 7.31 88.70
Saturday 05/30/2026 04:40 AM 7.31 88.70
Saturday 05/30/2026 04:50 AM 7.38 89.60
Saturday 05/30/2026 05:00 AM 7.32 88.80
Saturday 05/30/2026 05:10 AM 7.31 88.70
Saturday 05/30/2026 05:20 AM 7.32 88.80
Saturday 05/30/2026 05:30 AM 7.31 88.70
Saturday 05/30/2026 05:40 AM 7.33 89.00
Saturday 05/30/2026 05:50 AM 7.30 88.60

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