Mississippi River At Mel Price (alton) Lock And Dam

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Hydrograph

Stage Color Key
19 ft - Near Flood 21 ft - Minor Flood 29 ft - Moderate Flood 34 ft - Major Flood

Latest Observation: Wednesday June 17th, 2026 04:00 PM CDT
River Status: Minor Flooding

  Height Flow
Currently 21.25 ft 350 kcfs
Record 42.72 ft 369500 cfs

Forecast
  Date (CDT) Stage (ft) Flow (kcfs)
  Wednesday 12/31/1969 06:00 PM 0.00 N/A
  Wednesday 06/17/2026 07:00 PM 21.10 N/A
  Thursday 06/18/2026 01:00 AM 21.00 N/A
  Thursday 06/18/2026 07:00 AM 20.90 N/A
  Thursday 06/18/2026 01:00 PM 20.60 N/A
  Thursday 06/18/2026 07:00 PM 20.30 N/A
  Friday 06/19/2026 01:00 AM 19.90 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Wednesday 06/17/2026 06:30 AM 21.09 N/A
Wednesday 06/17/2026 07:00 AM 21.10 N/A
Wednesday 06/17/2026 07:30 AM 21.10 N/A
Wednesday 06/17/2026 08:00 AM 21.11 N/A
Wednesday 06/17/2026 08:30 AM 21.11 N/A
Wednesday 06/17/2026 09:00 AM 21.12 N/A
Wednesday 06/17/2026 09:30 AM 21.12 N/A
Wednesday 06/17/2026 10:00 AM 21.14 N/A
Wednesday 06/17/2026 10:30 AM 21.15 N/A
Wednesday 06/17/2026 11:00 AM 21.16 N/A
Wednesday 06/17/2026 11:30 AM 21.17 N/A
Wednesday 06/17/2026 12:00 PM 21.19 N/A
Wednesday 06/17/2026 12:30 PM 21.20 N/A
Wednesday 06/17/2026 01:00 PM 21.21 N/A
Wednesday 06/17/2026 01:30 PM 21.22 N/A
Wednesday 06/17/2026 02:00 PM 21.23 N/A
Wednesday 06/17/2026 02:30 PM 21.23 N/A
Wednesday 06/17/2026 03:00 PM 21.24 N/A
Wednesday 06/17/2026 03:30 PM 21.24 N/A
Wednesday 06/17/2026 04:00 PM 21.25 N/A

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