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: Thursday November 13th, 2025 08:00 AM CST
River Status: Normal

  Height Flow
Currently 3.53 ft 39.9 kcfs
Record 31.3 ft 428694 cfs

Forecast
  Date (CST) Stage (ft) Flow (kcfs)
  Wednesday 12/31/1969 06:00 PM 0.00 N/A
  Wednesday 11/12/2025 06:00 PM 3.60 40.80
  Thursday 11/13/2025 12:00 AM 3.60 40.80
  Thursday 11/13/2025 06:00 AM 3.50 39.50
  Thursday 11/13/2025 12:00 PM 3.50 39.50
  Thursday 11/13/2025 06:00 PM 3.50 39.50
  Friday 11/14/2025 12:00 AM 3.40 38.20

Observation
  Date (CST) Stage (ft) Flow (kcfs)
Thursday 11/13/2025 05:10 AM 3.56 40.30
Thursday 11/13/2025 05:20 AM 3.45 38.90
Thursday 11/13/2025 05:30 AM 3.59 40.70
Thursday 11/13/2025 05:40 AM 3.56 40.30
Thursday 11/13/2025 05:50 AM 3.55 40.20
Thursday 11/13/2025 06:00 AM 3.55 40.20
Thursday 11/13/2025 06:10 AM 3.54 40.10
Thursday 11/13/2025 06:20 AM 3.55 40.20
Thursday 11/13/2025 06:30 AM 3.53 39.90
Thursday 11/13/2025 06:40 AM 3.64 41.40
Thursday 11/13/2025 06:50 AM 3.55 40.20
Thursday 11/13/2025 07:00 AM 3.55 40.20
Thursday 11/13/2025 07:10 AM 3.54 40.10
Thursday 11/13/2025 07:20 AM 3.53 39.90
Thursday 11/13/2025 07:30 AM 3.56 40.30
Thursday 11/13/2025 07:40 AM 3.57 40.50
Thursday 11/13/2025 07:50 AM 3.63 41.20
Thursday 11/13/2025 08:00 AM 3.53 39.90
Thursday 11/13/2025 08:10 AM 3.55 40.20
Thursday 11/13/2025 08:20 AM 3.55 40.20

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