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: Friday August 29th, 2025 05:00 PM CDT
River Status: Normal

  Height Flow
Currently 9.75 ft 154 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
  Friday 08/29/2025 07:00 PM 9.90 156.00
  Saturday 08/30/2025 01:00 AM 9.80 155.00
  Saturday 08/30/2025 07:00 AM 9.70 153.00
  Saturday 08/30/2025 01:00 PM 9.70 153.00
  Saturday 08/30/2025 07:00 PM 9.60 152.00
  Sunday 08/31/2025 01:00 AM 9.60 152.00

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Friday 08/29/2025 07:00 AM 9.99 158.00
Friday 08/29/2025 07:30 AM 9.99 158.00
Friday 08/29/2025 08:00 AM 9.98 157.00
Friday 08/29/2025 08:30 AM 9.98 157.00
Friday 08/29/2025 09:00 AM 9.99 158.00
Friday 08/29/2025 09:30 AM 9.98 157.00
Friday 08/29/2025 10:00 AM 9.99 158.00
Friday 08/29/2025 10:30 AM 9.98 157.00
Friday 08/29/2025 11:00 AM 9.97 157.00
Friday 08/29/2025 11:30 AM 9.97 157.00
Friday 08/29/2025 12:00 PM 9.97 157.00
Friday 08/29/2025 12:30 PM 9.96 157.00
Friday 08/29/2025 01:00 PM 9.92 157.00
Friday 08/29/2025 01:30 PM 9.86 156.00
Friday 08/29/2025 02:00 PM 9.83 155.00
Friday 08/29/2025 02:30 PM 9.80 155.00
Friday 08/29/2025 03:00 PM 9.79 155.00
Friday 08/29/2025 03:30 PM 9.78 154.00
Friday 08/29/2025 04:00 PM 9.77 154.00
Friday 08/29/2025 04:30 PM 9.75 154.00

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