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: Friday October 2nd, 2026 06:30 PM CDT
River Status: Normal

  Height Flow
Currently 9.33 ft 148 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
  Friday 10/02/2026 07:00 PM 9.60 N/A
  Saturday 10/03/2026 01:00 AM 10.00 N/A
  Saturday 10/03/2026 07:00 AM 10.50 N/A
  Saturday 10/03/2026 01:00 PM 11.40 N/A
  Saturday 10/03/2026 07:00 PM 12.30 N/A
  Sunday 10/04/2026 01:00 AM 12.90 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Friday 10/02/2026 08:00 AM 9.19 N/A
Friday 10/02/2026 08:30 AM 9.14 N/A
Friday 10/02/2026 09:00 AM 9.11 N/A
Friday 10/02/2026 09:30 AM 9.12 N/A
Friday 10/02/2026 10:00 AM 9.12 N/A
Friday 10/02/2026 10:30 AM 9.11 N/A
Friday 10/02/2026 11:00 AM 9.13 N/A
Friday 10/02/2026 11:30 AM 9.15 N/A
Friday 10/02/2026 12:00 PM 9.14 N/A
Friday 10/02/2026 12:30 PM 9.14 N/A
Friday 10/02/2026 01:00 PM 9.17 N/A
Friday 10/02/2026 01:30 PM 9.19 N/A
Friday 10/02/2026 02:00 PM 9.20 N/A
Friday 10/02/2026 02:30 PM 9.21 N/A
Friday 10/02/2026 03:30 PM 9.23 N/A
Friday 10/02/2026 04:00 PM 9.24 N/A
Friday 10/02/2026 04:30 PM 9.23 N/A
Friday 10/02/2026 05:00 PM 9.24 N/A
Friday 10/02/2026 05:30 PM 9.33 N/A
Friday 10/02/2026 06:00 PM 9.34 N/A

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