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: Monday September 7th, 2026 10:30 PM CDT
River Status: Normal

  Height Flow
Currently 2.83 ft 58.6 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
  Tuesday 09/08/2026 07:00 AM 2.50 N/A
  Tuesday 09/08/2026 01:00 PM 2.40 N/A
  Tuesday 09/08/2026 07:00 PM 2.30 N/A
  Wednesday 09/09/2026 01:00 AM 2.20 N/A
  Wednesday 09/09/2026 07:00 AM 2.20 N/A
  Wednesday 09/09/2026 01:00 PM 2.10 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Monday 09/07/2026 12:30 PM 2.95 N/A
Monday 09/07/2026 01:00 PM 2.88 N/A
Monday 09/07/2026 01:30 PM 2.92 N/A
Monday 09/07/2026 02:00 PM 2.81 N/A
Monday 09/07/2026 02:30 PM 2.85 N/A
Monday 09/07/2026 03:00 PM 2.83 N/A
Monday 09/07/2026 03:30 PM 2.98 N/A
Monday 09/07/2026 04:00 PM 2.83 N/A
Monday 09/07/2026 04:30 PM 2.79 N/A
Monday 09/07/2026 05:00 PM 2.82 N/A
Monday 09/07/2026 05:30 PM 2.85 N/A
Monday 09/07/2026 06:00 PM 2.81 N/A
Monday 09/07/2026 06:30 PM 2.79 N/A
Monday 09/07/2026 07:00 PM 2.86 N/A
Monday 09/07/2026 07:30 PM 2.83 N/A
Monday 09/07/2026 08:00 PM 2.83 N/A
Monday 09/07/2026 08:30 PM 3.01 N/A
Monday 09/07/2026 09:00 PM 2.82 N/A
Monday 09/07/2026 09:30 PM 2.83 N/A
Monday 09/07/2026 10:00 PM 2.84 N/A

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