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: Thursday July 2nd, 2026 09:00 PM CDT
River Status: Normal

  Height Flow
Currently 12.47 ft 194 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 07/03/2026 07:00 AM 12.20 N/A
  Friday 07/03/2026 01:00 PM 12.30 N/A
  Friday 07/03/2026 07:00 PM 12.50 N/A
  Saturday 07/04/2026 01:00 AM 12.80 N/A
  Saturday 07/04/2026 07:00 AM 13.00 N/A
  Saturday 07/04/2026 01:00 PM 13.10 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Thursday 07/02/2026 11:30 AM 13.03 N/A
Thursday 07/02/2026 12:00 PM 13.00 N/A
Thursday 07/02/2026 12:30 PM 12.99 N/A
Thursday 07/02/2026 01:00 PM 13.02 N/A
Thursday 07/02/2026 01:30 PM 13.03 N/A
Thursday 07/02/2026 02:00 PM 12.98 N/A
Thursday 07/02/2026 02:30 PM 12.95 N/A
Thursday 07/02/2026 03:00 PM 12.96 N/A
Thursday 07/02/2026 03:30 PM 12.65 N/A
Thursday 07/02/2026 04:00 PM 12.61 N/A
Thursday 07/02/2026 04:30 PM 12.57 N/A
Thursday 07/02/2026 05:00 PM 12.53 N/A
Thursday 07/02/2026 05:30 PM 12.50 N/A
Thursday 07/02/2026 06:00 PM 12.50 N/A
Thursday 07/02/2026 06:30 PM 12.50 N/A
Thursday 07/02/2026 07:00 PM 12.45 N/A
Thursday 07/02/2026 07:30 PM 12.46 N/A
Thursday 07/02/2026 08:00 PM 12.46 N/A
Thursday 07/02/2026 08:30 PM 12.45 N/A
Thursday 07/02/2026 09:00 PM 12.47 N/A

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