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: Tuesday June 23rd, 2026 11:00 AM CDT
River Status: Normal

  Height Flow
Currently 17.94 ft 283 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
  Tuesday 06/23/2026 07:00 PM 18.20 N/A
  Wednesday 06/24/2026 01:00 AM 18.40 N/A
  Wednesday 06/24/2026 07:00 AM 18.50 N/A
  Wednesday 06/24/2026 01:00 PM 18.70 N/A
  Wednesday 06/24/2026 07:00 PM 18.70 N/A
  Thursday 06/25/2026 01:00 AM 18.70 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Tuesday 06/23/2026 01:00 AM 17.78 N/A
Tuesday 06/23/2026 01:30 AM 17.78 N/A
Tuesday 06/23/2026 02:00 AM 17.79 N/A
Tuesday 06/23/2026 02:30 AM 17.80 N/A
Tuesday 06/23/2026 03:00 AM 17.81 N/A
Tuesday 06/23/2026 03:30 AM 17.82 N/A
Tuesday 06/23/2026 04:00 AM 17.82 N/A
Tuesday 06/23/2026 04:30 AM 17.83 N/A
Tuesday 06/23/2026 05:00 AM 17.84 N/A
Tuesday 06/23/2026 05:30 AM 17.85 N/A
Tuesday 06/23/2026 06:00 AM 17.86 N/A
Tuesday 06/23/2026 06:30 AM 17.86 N/A
Tuesday 06/23/2026 07:00 AM 17.87 N/A
Tuesday 06/23/2026 07:30 AM 17.88 N/A
Tuesday 06/23/2026 08:00 AM 17.89 N/A
Tuesday 06/23/2026 08:30 AM 17.90 N/A
Tuesday 06/23/2026 09:00 AM 17.91 N/A
Tuesday 06/23/2026 09:30 AM 17.91 N/A
Tuesday 06/23/2026 10:00 AM 17.92 N/A
Tuesday 06/23/2026 10:30 AM 17.93 N/A

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