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 8th, 2026 11:30 AM CDT
River Status: Normal

  Height Flow
Currently 8.37 ft 134 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 06/08/2026 07:00 PM 9.30 N/A
  Tuesday 06/09/2026 01:00 AM 10.00 N/A
  Tuesday 06/09/2026 07:00 AM 11.00 N/A
  Tuesday 06/09/2026 01:00 PM 12.20 N/A
  Tuesday 06/09/2026 07:00 PM 13.50 N/A
  Wednesday 06/10/2026 01:00 AM 14.60 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Monday 06/08/2026 01:30 AM 8.23 N/A
Monday 06/08/2026 02:00 AM 8.23 N/A
Monday 06/08/2026 02:30 AM 8.23 N/A
Monday 06/08/2026 03:00 AM 8.23 N/A
Monday 06/08/2026 03:30 AM 8.23 N/A
Monday 06/08/2026 04:00 AM 8.23 N/A
Monday 06/08/2026 04:30 AM 8.23 N/A
Monday 06/08/2026 05:00 AM 8.23 N/A
Monday 06/08/2026 05:30 AM 8.23 N/A
Monday 06/08/2026 06:00 AM 8.23 N/A
Monday 06/08/2026 06:30 AM 8.23 N/A
Monday 06/08/2026 07:00 AM 8.23 N/A
Monday 06/08/2026 07:30 AM 8.23 N/A
Monday 06/08/2026 08:00 AM 8.24 N/A
Monday 06/08/2026 08:30 AM 8.24 N/A
Monday 06/08/2026 09:00 AM 8.26 N/A
Monday 06/08/2026 09:30 AM 8.27 N/A
Monday 06/08/2026 10:00 AM 8.29 N/A
Monday 06/08/2026 10:30 AM 8.31 N/A
Monday 06/08/2026 11:00 AM 8.34 N/A

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