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: Wednesday July 15th, 2026 01:30 AM CDT
River Status: Normal

  Height Flow
Currently 12.3 ft 191 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
  Wednesday 07/15/2026 07:00 AM 12.20 N/A
  Wednesday 07/15/2026 01:00 PM 12.10 N/A
  Wednesday 07/15/2026 07:00 PM 11.90 N/A
  Thursday 07/16/2026 01:00 AM 11.80 N/A
  Thursday 07/16/2026 07:00 AM 11.60 N/A
  Thursday 07/16/2026 01:00 PM 11.50 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Tuesday 07/14/2026 02:30 PM 12.41 N/A
Tuesday 07/14/2026 03:00 PM 12.40 N/A
Tuesday 07/14/2026 03:30 PM 12.41 N/A
Tuesday 07/14/2026 04:00 PM 12.40 N/A
Tuesday 07/14/2026 04:30 PM 12.40 N/A
Tuesday 07/14/2026 05:00 PM 12.40 N/A
Tuesday 07/14/2026 05:30 PM 12.40 N/A
Tuesday 07/14/2026 06:00 PM 12.40 N/A
Tuesday 07/14/2026 06:30 PM 12.41 N/A
Tuesday 07/14/2026 08:00 PM 12.42 N/A
Tuesday 07/14/2026 08:30 PM 12.40 N/A
Tuesday 07/14/2026 09:00 PM 12.36 N/A
Tuesday 07/14/2026 09:30 PM 12.36 N/A
Tuesday 07/14/2026 10:00 PM 12.36 N/A
Tuesday 07/14/2026 10:30 PM 12.34 N/A
Tuesday 07/14/2026 11:00 PM 12.32 N/A
Tuesday 07/14/2026 11:30 PM 12.33 N/A
Wednesday 07/15/2026 12:00 AM 12.36 N/A
Wednesday 07/15/2026 12:30 AM 12.32 N/A
Wednesday 07/15/2026 01:00 AM 12.31 N/A

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