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 October 8th, 2026 07:30 PM CDT
River Status: Normal

  Height Flow
Currently 15.34 ft 238 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
  Thursday 10/08/2026 07:00 PM 15.60 N/A
  Friday 10/09/2026 01:00 AM 15.20 N/A
  Friday 10/09/2026 07:00 AM 14.80 N/A
  Friday 10/09/2026 01:00 PM 14.50 N/A
  Friday 10/09/2026 07:00 PM 14.10 N/A
  Saturday 10/10/2026 01:00 AM 13.80 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Thursday 10/08/2026 09:00 AM 16.09 N/A
Thursday 10/08/2026 09:30 AM 16.07 N/A
Thursday 10/08/2026 10:00 AM 16.04 N/A
Thursday 10/08/2026 10:30 AM 16.02 N/A
Thursday 10/08/2026 11:00 AM 15.99 N/A
Thursday 10/08/2026 11:30 AM 15.97 N/A
Thursday 10/08/2026 12:00 PM 15.95 N/A
Thursday 10/08/2026 12:30 PM 15.94 N/A
Thursday 10/08/2026 01:00 PM 15.91 N/A
Thursday 10/08/2026 01:30 PM 15.66 N/A
Thursday 10/08/2026 02:00 PM 15.55 N/A
Thursday 10/08/2026 02:30 PM 15.54 N/A
Thursday 10/08/2026 03:30 PM 15.44 N/A
Thursday 10/08/2026 04:00 PM 15.43 N/A
Thursday 10/08/2026 04:30 PM 15.43 N/A
Thursday 10/08/2026 05:00 PM 15.40 N/A
Thursday 10/08/2026 05:30 PM 15.39 N/A
Thursday 10/08/2026 06:00 PM 15.38 N/A
Thursday 10/08/2026 06:30 PM 15.37 N/A
Thursday 10/08/2026 07:00 PM 15.34 N/A

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