Mississippi River Below Lock And Dam 4 - Alma

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Hydrograph

Stage Color Key
10 ft - Near Flood 16 ft - Minor Flood 17 ft - Moderate Flood 18 ft - Major Flood

Latest Observation: Wednesday March 11th, 2026 05:15 PM CDT
River Status: Normal

  Height Flow
Currently 5.31 ft 32.8 kcfs
Record 19.78 ft 269000 cfs

Forecast
  Date (CDT) Stage (ft) Flow (kcfs)
  Wednesday 12/31/1969 06:00 PM 0.00 N/A
  Wednesday 03/11/2026 07:00 PM 5.40 33.90
  Thursday 03/12/2026 01:00 AM 5.50 35.20
  Thursday 03/12/2026 07:00 AM 5.50 35.20
  Thursday 03/12/2026 01:00 PM 5.60 36.60
  Thursday 03/12/2026 07:00 PM 5.70 37.90
  Friday 03/13/2026 01:00 AM 5.70 37.90

Observation
  Date (CDT) Stage (ft) Flow (kcfs)
Wednesday 03/11/2026 12:15 PM 5.36 33.40
Wednesday 03/11/2026 12:30 PM 5.36 33.40
Wednesday 03/11/2026 12:45 PM 5.35 33.30
Wednesday 03/11/2026 01:00 PM 5.35 33.30
Wednesday 03/11/2026 01:15 PM 5.34 33.20
Wednesday 03/11/2026 01:30 PM 5.34 33.20
Wednesday 03/11/2026 01:45 PM 5.34 33.20
Wednesday 03/11/2026 02:00 PM 5.33 33.00
Wednesday 03/11/2026 02:15 PM 5.33 33.00
Wednesday 03/11/2026 02:30 PM 5.33 33.00
Wednesday 03/11/2026 02:45 PM 5.33 33.00
Wednesday 03/11/2026 03:00 PM 5.32 32.90
Wednesday 03/11/2026 03:15 PM 5.32 32.90
Wednesday 03/11/2026 03:30 PM 5.33 33.00
Wednesday 03/11/2026 03:45 PM 5.32 32.90
Wednesday 03/11/2026 04:00 PM 5.32 32.90
Wednesday 03/11/2026 04:15 PM 5.32 32.90
Wednesday 03/11/2026 04:30 PM 5.32 32.90
Wednesday 03/11/2026 04:45 PM 5.32 32.90
Wednesday 03/11/2026 05:00 PM 5.31 32.80

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