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 October 5th, 2026 07:30 PM CDT
River Status: Normal

  Height Flow
Currently 18.19 ft 287 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 10/05/2026 07:00 PM 17.80 N/A
  Tuesday 10/06/2026 01:00 AM 18.10 N/A
  Tuesday 10/06/2026 07:00 AM 18.30 N/A
  Tuesday 10/06/2026 01:00 PM 18.40 N/A
  Tuesday 10/06/2026 07:00 PM 18.40 N/A
  Wednesday 10/07/2026 01:00 AM 18.40 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Monday 10/05/2026 09:30 AM 17.42 N/A
Monday 10/05/2026 10:00 AM 17.43 N/A
Monday 10/05/2026 10:30 AM 17.48 N/A
Monday 10/05/2026 11:00 AM 17.51 N/A
Monday 10/05/2026 11:30 AM 17.54 N/A
Monday 10/05/2026 12:00 PM 17.58 N/A
Monday 10/05/2026 12:30 PM 17.60 N/A
Monday 10/05/2026 01:00 PM 17.78 N/A
Monday 10/05/2026 01:30 PM 17.90 N/A
Monday 10/05/2026 02:00 PM 17.92 N/A
Monday 10/05/2026 02:30 PM 17.94 N/A
Monday 10/05/2026 03:00 PM 17.97 N/A
Monday 10/05/2026 03:30 PM 17.99 N/A
Monday 10/05/2026 04:00 PM 18.02 N/A
Monday 10/05/2026 04:30 PM 18.04 N/A
Monday 10/05/2026 05:00 PM 18.07 N/A
Monday 10/05/2026 05:30 PM 18.09 N/A
Monday 10/05/2026 06:00 PM 18.10 N/A
Monday 10/05/2026 06:30 PM 18.14 N/A
Monday 10/05/2026 07:00 PM 18.16 N/A

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