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: Sunday July 5th, 2026 09:00 PM CDT
River Status: Normal

  Height Flow
Currently 12.2 ft 190 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
  Monday 07/06/2026 07:00 AM 12.40 N/A
  Monday 07/06/2026 01:00 PM 12.60 N/A
  Monday 07/06/2026 07:00 PM 13.00 N/A
  Tuesday 07/07/2026 01:00 AM 13.30 N/A
  Tuesday 07/07/2026 07:00 AM 13.60 N/A
  Tuesday 07/07/2026 01:00 PM 14.00 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Sunday 07/05/2026 11:30 AM 11.40 N/A
Sunday 07/05/2026 12:00 PM 11.36 N/A
Sunday 07/05/2026 12:30 PM 11.36 N/A
Sunday 07/05/2026 01:00 PM 11.40 N/A
Sunday 07/05/2026 01:30 PM 11.36 N/A
Sunday 07/05/2026 02:00 PM 11.35 N/A
Sunday 07/05/2026 02:30 PM 11.36 N/A
Sunday 07/05/2026 03:00 PM 11.35 N/A
Sunday 07/05/2026 03:30 PM 11.34 N/A
Sunday 07/05/2026 04:00 PM 11.35 N/A
Sunday 07/05/2026 04:30 PM 11.35 N/A
Sunday 07/05/2026 05:00 PM 11.33 N/A
Sunday 07/05/2026 05:30 PM 11.32 N/A
Sunday 07/05/2026 06:00 PM 11.31 N/A
Sunday 07/05/2026 06:30 PM 11.35 N/A
Sunday 07/05/2026 07:00 PM 11.46 N/A
Sunday 07/05/2026 07:30 PM 11.97 N/A
Sunday 07/05/2026 08:00 PM 12.06 N/A
Sunday 07/05/2026 08:30 PM 12.15 N/A
Sunday 07/05/2026 09:00 PM 12.20 N/A

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