Mississippi River At Quincy Lock And Dam 21

Back to River Summary

Hydrograph

Stage Color Key
16 ft - Near Flood 18 ft - Minor Flood 21 ft - Moderate Flood 25 ft - Major Flood

Latest Observation: Monday July 20th, 2026 04:00 PM CDT
River Status: Normal

  Height Flow
Currently 6.68 ft 81.3 kcfs
Record 31.3 ft 428694 cfs

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Monday 07/20/2026 08:40 AM 6.95 84.40
Monday 07/20/2026 08:50 AM 6.93 84.20
Monday 07/20/2026 09:00 AM 6.94 84.30
Monday 07/20/2026 12:40 PM 6.68 81.30
Monday 07/20/2026 12:50 PM 6.77 82.40
Monday 07/20/2026 01:00 PM 6.67 81.20
Monday 07/20/2026 01:10 PM 6.66 81.10
Monday 07/20/2026 01:20 PM 6.68 81.30
Monday 07/20/2026 01:30 PM 6.65 81.00
Monday 07/20/2026 02:10 PM 6.79 82.60
Monday 07/20/2026 02:20 PM 6.72 81.80
Monday 07/20/2026 02:30 PM 6.67 81.20
Monday 07/20/2026 02:40 PM 6.68 81.30
Monday 07/20/2026 02:50 PM 6.67 81.20
Monday 07/20/2026 03:00 PM 6.67 81.20
Monday 07/20/2026 03:10 PM 6.66 81.10
Monday 07/20/2026 03:20 PM 6.68 81.30
Monday 07/20/2026 03:30 PM 6.67 81.20
Monday 07/20/2026 03:40 PM 6.66 81.10
Monday 07/20/2026 03:50 PM 6.69 81.40

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