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 15th, 2026 10:00 AM CDT
River Status: Normal

  Height Flow
Currently 14.86 ft 183 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 06/14/2026 07:00 PM 15.30 189.00
  Monday 06/15/2026 01:00 AM 15.30 189.00
  Monday 06/15/2026 07:00 AM 15.30 189.00
  Monday 06/15/2026 01:00 PM 15.40 191.00
  Monday 06/15/2026 07:00 PM 15.50 193.00
  Tuesday 06/16/2026 01:00 AM 15.60 194.00

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Monday 06/15/2026 06:40 AM 14.84 182.00
Monday 06/15/2026 06:50 AM 14.84 182.00
Monday 06/15/2026 07:00 AM 14.83 182.00
Monday 06/15/2026 07:10 AM 14.84 182.00
Monday 06/15/2026 07:20 AM 14.85 182.00
Monday 06/15/2026 07:30 AM 14.83 182.00
Monday 06/15/2026 07:40 AM 14.83 182.00
Monday 06/15/2026 07:50 AM 14.83 182.00
Monday 06/15/2026 08:00 AM 14.81 182.00
Monday 06/15/2026 08:10 AM 14.83 182.00
Monday 06/15/2026 08:20 AM 14.84 182.00
Monday 06/15/2026 08:30 AM 14.85 182.00
Monday 06/15/2026 08:40 AM 14.84 182.00
Monday 06/15/2026 08:50 AM 14.85 182.00
Monday 06/15/2026 09:00 AM 14.84 182.00
Monday 06/15/2026 09:10 AM 14.83 182.00
Monday 06/15/2026 09:20 AM 14.84 182.00
Monday 06/15/2026 09:30 AM 14.83 182.00
Monday 06/15/2026 09:40 AM 14.85 182.00
Monday 06/15/2026 09:50 AM 14.84 182.00

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