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 September 4th, 2026 08:30 PM CDT
River Status: Normal

  Height Flow
Currently 3.63 ft 66.6 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
  Saturday 09/05/2026 07:00 AM 3.50 N/A
  Saturday 09/05/2026 01:00 PM 3.40 N/A
  Saturday 09/05/2026 07:00 PM 3.30 N/A
  Sunday 09/06/2026 01:00 AM 3.20 N/A
  Sunday 09/06/2026 07:00 AM 3.10 N/A
  Sunday 09/06/2026 01:00 PM 3.00 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Friday 09/04/2026 10:00 AM 4.07 N/A
Friday 09/04/2026 10:30 AM 4.02 N/A
Friday 09/04/2026 11:00 AM 4.01 N/A
Friday 09/04/2026 12:00 PM 3.98 N/A
Friday 09/04/2026 12:30 PM 3.87 N/A
Friday 09/04/2026 01:00 PM 3.85 N/A
Friday 09/04/2026 01:30 PM 3.76 N/A
Friday 09/04/2026 02:00 PM 3.74 N/A
Friday 09/04/2026 02:30 PM 3.84 N/A
Friday 09/04/2026 03:00 PM 3.70 N/A
Friday 09/04/2026 03:30 PM 3.74 N/A
Friday 09/04/2026 04:00 PM 3.68 N/A
Friday 09/04/2026 04:30 PM 3.64 N/A
Friday 09/04/2026 05:00 PM 3.67 N/A
Friday 09/04/2026 05:30 PM 3.70 N/A
Friday 09/04/2026 06:00 PM 3.65 N/A
Friday 09/04/2026 06:30 PM 3.64 N/A
Friday 09/04/2026 07:00 PM 3.66 N/A
Friday 09/04/2026 07:30 PM 3.66 N/A
Friday 09/04/2026 08:00 PM 3.65 N/A

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