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 June 29th, 2026 07:00 PM CDT
River Status: Normal

  Height Flow
Currently 14.65 ft 227 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 06/29/2026 07:00 PM 15.20 N/A
  Tuesday 06/30/2026 01:00 AM 15.10 N/A
  Tuesday 06/30/2026 07:00 AM 15.00 N/A
  Tuesday 06/30/2026 01:00 PM 14.90 N/A
  Tuesday 06/30/2026 07:00 PM 14.70 N/A
  Wednesday 07/01/2026 01:00 AM 14.60 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Monday 06/29/2026 09:30 AM 15.28 N/A
Monday 06/29/2026 10:00 AM 15.27 N/A
Monday 06/29/2026 10:30 AM 15.22 N/A
Monday 06/29/2026 11:00 AM 15.17 N/A
Monday 06/29/2026 11:30 AM 15.15 N/A
Monday 06/29/2026 12:00 PM 15.13 N/A
Monday 06/29/2026 12:30 PM 14.65 N/A
Monday 06/29/2026 01:00 PM 14.70 N/A
Monday 06/29/2026 01:30 PM 14.65 N/A
Monday 06/29/2026 02:00 PM 14.61 N/A
Monday 06/29/2026 02:30 PM 14.59 N/A
Monday 06/29/2026 03:00 PM 14.63 N/A
Monday 06/29/2026 03:30 PM 14.61 N/A
Monday 06/29/2026 04:00 PM 14.60 N/A
Monday 06/29/2026 04:30 PM 14.59 N/A
Monday 06/29/2026 05:00 PM 14.59 N/A
Monday 06/29/2026 05:30 PM 14.59 N/A
Monday 06/29/2026 06:00 PM 14.62 N/A
Monday 06/29/2026 06:30 PM 14.65 N/A
Monday 06/29/2026 07:00 PM 14.65 N/A

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