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: Tuesday June 2nd, 2026 07:00 AM CDT
River Status: Normal

  Height Flow
Currently 6.41 ft 78.2 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
  Monday 06/01/2026 07:00 PM 6.30 77.00
  Tuesday 06/02/2026 01:00 AM 6.20 75.80
  Tuesday 06/02/2026 07:00 AM 6.20 75.80
  Tuesday 06/02/2026 01:00 PM 6.10 74.70
  Tuesday 06/02/2026 07:00 PM 6.10 74.70
  Wednesday 06/03/2026 01:00 AM 6.00 73.50

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Tuesday 06/02/2026 04:10 AM 6.41 78.20
Tuesday 06/02/2026 04:20 AM 6.42 78.30
Tuesday 06/02/2026 04:30 AM 6.42 78.30
Tuesday 06/02/2026 04:40 AM 6.42 78.30
Tuesday 06/02/2026 04:50 AM 6.42 78.30
Tuesday 06/02/2026 05:00 AM 6.40 78.10
Tuesday 06/02/2026 05:10 AM 6.40 78.10
Tuesday 06/02/2026 05:20 AM 6.43 78.50
Tuesday 06/02/2026 05:30 AM 6.42 78.30
Tuesday 06/02/2026 05:40 AM 6.44 78.60
Tuesday 06/02/2026 05:50 AM 6.41 78.20
Tuesday 06/02/2026 06:00 AM 6.44 78.60
Tuesday 06/02/2026 06:10 AM 6.41 78.20
Tuesday 06/02/2026 06:20 AM 6.43 78.50
Tuesday 06/02/2026 06:30 AM 6.43 78.50
Tuesday 06/02/2026 06:40 AM 6.41 78.20
Tuesday 06/02/2026 06:50 AM 6.42 78.30
Tuesday 06/02/2026 07:00 AM 6.41 78.20
Tuesday 06/02/2026 07:10 AM 6.40 78.10
Tuesday 06/02/2026 07:20 AM 6.44 78.60

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