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 August 17th, 2026 02:30 PM CDT
River Status: Normal

  Height Flow
Currently 11.47 ft 179 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
  Monday 08/17/2026 07:00 PM 11.50 N/A
  Tuesday 08/18/2026 01:00 AM 11.60 N/A
  Tuesday 08/18/2026 07:00 AM 11.70 N/A
  Tuesday 08/18/2026 01:00 PM 11.80 N/A
  Tuesday 08/18/2026 07:00 PM 11.90 N/A
  Wednesday 08/19/2026 01:00 AM 12.00 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Monday 08/17/2026 04:00 AM 11.04 N/A
Monday 08/17/2026 04:30 AM 11.04 N/A
Monday 08/17/2026 05:00 AM 11.05 N/A
Monday 08/17/2026 05:30 AM 11.06 N/A
Monday 08/17/2026 06:00 AM 11.08 N/A
Monday 08/17/2026 06:30 AM 11.08 N/A
Monday 08/17/2026 07:00 AM 11.09 N/A
Monday 08/17/2026 07:30 AM 11.12 N/A
Monday 08/17/2026 08:00 AM 11.09 N/A
Monday 08/17/2026 08:30 AM 11.10 N/A
Monday 08/17/2026 09:00 AM 11.11 N/A
Monday 08/17/2026 09:30 AM 11.13 N/A
Monday 08/17/2026 10:00 AM 11.13 N/A
Monday 08/17/2026 10:30 AM 11.18 N/A
Monday 08/17/2026 11:00 AM 11.16 N/A
Monday 08/17/2026 11:30 AM 11.35 N/A
Monday 08/17/2026 12:00 PM 11.41 N/A
Monday 08/17/2026 01:00 PM 11.46 N/A
Monday 08/17/2026 01:30 PM 11.47 N/A
Monday 08/17/2026 02:00 PM 11.48 N/A

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