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 August 5th, 2026 10:00 AM CDT
River Status: Normal

  Height Flow
Currently 5.93 ft 98 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 08/05/2026 07:00 PM 6.10 N/A
  Thursday 08/06/2026 01:00 AM 6.20 N/A
  Thursday 08/06/2026 07:00 AM 6.20 N/A
  Thursday 08/06/2026 01:00 PM 6.20 N/A
  Thursday 08/06/2026 07:00 PM 6.20 N/A
  Friday 08/07/2026 01:00 AM 6.10 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Wednesday 08/05/2026 12:30 AM 5.87 N/A
Wednesday 08/05/2026 01:00 AM 5.93 N/A
Wednesday 08/05/2026 01:30 AM 5.93 N/A
Wednesday 08/05/2026 02:00 AM 5.93 N/A
Wednesday 08/05/2026 02:30 AM 5.89 N/A
Wednesday 08/05/2026 03:00 AM 5.90 N/A
Wednesday 08/05/2026 03:30 AM 5.90 N/A
Wednesday 08/05/2026 04:00 AM 5.91 N/A
Wednesday 08/05/2026 04:30 AM 5.98 N/A
Wednesday 08/05/2026 05:00 AM 5.90 N/A
Wednesday 08/05/2026 05:30 AM 5.92 N/A
Wednesday 08/05/2026 06:00 AM 5.93 N/A
Wednesday 08/05/2026 06:30 AM 5.94 N/A
Wednesday 08/05/2026 07:00 AM 5.92 N/A
Wednesday 08/05/2026 07:30 AM 5.92 N/A
Wednesday 08/05/2026 08:00 AM 5.94 N/A
Wednesday 08/05/2026 08:30 AM 5.94 N/A
Wednesday 08/05/2026 09:00 AM 5.93 N/A
Wednesday 08/05/2026 09:30 AM 5.93 N/A
Wednesday 08/05/2026 10:00 AM 5.93 N/A

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