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 July 13th, 2026 03:00 PM CDT
River Status: Normal

  Height Flow
Currently 10.19 ft 123 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 07/13/2026 07:00 PM 10.00 121.00
  Tuesday 07/14/2026 01:00 AM 9.90 120.00
  Tuesday 07/14/2026 07:00 AM 9.80 118.00
  Tuesday 07/14/2026 01:00 PM 9.70 117.00
  Tuesday 07/14/2026 07:00 PM 9.60 116.00
  Wednesday 07/15/2026 01:00 AM 9.60 116.00

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Monday 07/13/2026 11:40 AM 10.17 123.00
Monday 07/13/2026 11:50 AM 10.18 123.00
Monday 07/13/2026 12:00 PM 10.17 123.00
Monday 07/13/2026 12:10 PM 10.17 123.00
Monday 07/13/2026 12:20 PM 10.17 123.00
Monday 07/13/2026 12:30 PM 10.18 123.00
Monday 07/13/2026 12:40 PM 10.17 123.00
Monday 07/13/2026 12:50 PM 10.16 123.00
Monday 07/13/2026 01:00 PM 10.19 123.00
Monday 07/13/2026 01:10 PM 10.19 123.00
Monday 07/13/2026 01:20 PM 10.18 123.00
Monday 07/13/2026 01:30 PM 10.16 123.00
Monday 07/13/2026 01:40 PM 10.17 123.00
Monday 07/13/2026 01:50 PM 10.21 123.00
Monday 07/13/2026 02:00 PM 10.19 123.00
Monday 07/13/2026 02:10 PM 10.20 123.00
Monday 07/13/2026 02:20 PM 10.18 123.00
Monday 07/13/2026 02:30 PM 10.18 123.00
Monday 07/13/2026 02:40 PM 10.20 123.00
Monday 07/13/2026 02:50 PM 10.17 123.00

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