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 October 27th, 2026 03:30 AM CDT
River Status: Normal

  Height Flow
Currently 5.5 ft 91.9 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 10/27/2026 07:00 AM 4.80 N/A
  Tuesday 10/27/2026 01:00 PM 4.80 N/A
  Tuesday 10/27/2026 07:00 PM 4.90 N/A
  Wednesday 10/28/2026 01:00 AM 4.90 N/A
  Wednesday 10/28/2026 07:00 AM 4.90 N/A
  Wednesday 10/28/2026 01:00 PM 4.90 N/A

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Monday 10/26/2026 05:30 PM 5.86 N/A
Monday 10/26/2026 06:00 PM 5.76 N/A
Monday 10/26/2026 06:30 PM 5.70 N/A
Monday 10/26/2026 07:00 PM 5.69 N/A
Monday 10/26/2026 07:30 PM 5.67 N/A
Monday 10/26/2026 08:00 PM 5.65 N/A
Monday 10/26/2026 08:30 PM 5.62 N/A
Monday 10/26/2026 09:00 PM 5.61 N/A
Monday 10/26/2026 09:30 PM 5.60 N/A
Monday 10/26/2026 10:00 PM 5.60 N/A
Monday 10/26/2026 10:30 PM 5.61 N/A
Monday 10/26/2026 11:00 PM 5.58 N/A
Monday 10/26/2026 11:30 PM 5.57 N/A
Tuesday 10/27/2026 12:00 AM 5.60 N/A
Tuesday 10/27/2026 12:30 AM 5.57 N/A
Tuesday 10/27/2026 01:00 AM 5.55 N/A
Tuesday 10/27/2026 01:30 AM 5.55 N/A
Tuesday 10/27/2026 02:00 AM 5.54 N/A
Tuesday 10/27/2026 02:30 AM 5.55 N/A
Tuesday 10/27/2026 03:00 AM 5.55 N/A

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