Storm Station

Live/Water/Illinois/Mississippi River at Alton Il

Mississippi River at Alton Il

A gauge on the Mississippi River in Madison County, Illinois. Its stage was 14.74 ft as of Sep 27, 2:00 AM CDT.

Gauge ALOI2Madison County, IllinoisEvery gauge in Illinois

Stage now
14.74 ftreported Sep 27, 2:00 AM CDT
24 hour change
Rose 0.29 ftsince Sep 26, 2:00 AM
Rank
306of 417 in Illinois, Sep 27
Elevation
423 ftabove sea level
County
Madison County
Position
38.8872° N, 90.1839° W
Record since
2009

Water level

Mississippi River at Alton Il

Stage is the height of the water's surface above the gauge's own fixed zero, in feet, not the depth of the water. Every point drawn is a reading the gauge sent, at the time it sent it.

Water level, 24 hours at Mississippi River at Alton Il: the water from 14.43 to 14.74 feet of stage, the latest 14.74 feet.WATER LEVEL, 24 HOURSFTHIGH 14.74 FT, SEP 27, 2:00 AM · LOW 14.43 FT, SEP 26, 3:00 AM14.4014.5014.6014.7014.803 AM6 AM9 AM12 PM3 PM6 PM9 PMSep 2714.74
Latest
14.74 ftSep 27, 2:00 AM
Highest
14.74 ftSep 27, 2:00 AM
Lowest
14.43 ftSep 26, 3:00 AM
Range
0.31 fthighest less lowest
Change
Rose 0.30 ftsince Sep 26, 2:30 AM
Readings
47
The readings these charts were drawn from, as a table
TimeStage ft
Sep 27, 2:00 AM14.74
Sep 27, 1:30 AM14.72
Sep 27, 1:00 AM14.72
Sep 27, 12:30 AM14.72
Sep 27, 12:00 AM14.69
Sep 26, 11:30 PM14.68
Sep 26, 11:00 PM14.68
Sep 26, 10:30 PM14.70
Sep 26, 10:00 PM14.69
Sep 26, 9:30 PM14.67
Sep 26, 9:00 PM14.67
Sep 26, 8:30 PM14.65
Sep 26, 8:00 PM14.65
Sep 26, 7:30 PM14.67
Sep 26, 7:00 PM14.63
Sep 26, 6:30 PM14.62
Sep 26, 6:00 PM14.68
Sep 26, 5:00 PM14.63
Sep 26, 4:30 PM14.62
Sep 26, 4:00 PM14.63
Sep 26, 3:30 PM14.66
Sep 26, 3:00 PM14.64
Sep 26, 2:30 PM14.61
Sep 26, 2:00 PM14.63
Sep 26, 1:30 PM14.65
Sep 26, 1:00 PM14.70
Sep 26, 12:30 PM14.69
Sep 26, 12:00 PM14.67
Sep 26, 11:30 AM14.67
Sep 26, 11:00 AM14.66
Sep 26, 10:30 AM14.64
Sep 26, 10:00 AM14.61
Sep 26, 9:30 AM14.61
Sep 26, 9:00 AM14.62
Sep 26, 8:30 AM14.60
Sep 26, 8:00 AM14.59
Sep 26, 7:30 AM14.55
Sep 26, 7:00 AM14.53
Sep 26, 6:30 AM14.55
Sep 26, 6:00 AM14.51
Sep 26, 5:30 AM14.52
Sep 26, 5:00 AM14.49
Sep 26, 4:30 AM14.49
Sep 26, 4:00 AM14.48
Sep 26, 3:30 AM14.46
Sep 26, 3:00 AM14.43
Sep 26, 2:30 AM14.44
Water level, 7 days at Mississippi River at Alton Il: the water from 14.31 to 18.26 feet of stage, the latest 14.74 feet.WATER LEVEL, 7 DAYSFTHIGH 18.26 FT, SEP 20, 2:30 AM · LOW 14.31 FT, SEP 25, 3:30 PM141516171819Mon 21Tue 22Wed 23Thu 24Fri 25Sat 26Sun 2714.74
Latest
14.74 ftSep 27, 2:00 AM
Highest
18.26 ftSep 20, 2:30 AM
Lowest
14.31 ftSep 25, 3:30 PM
Range
3.95 fthighest less lowest
Change
Fell 3.52 ftsince Sep 20, 2:30 AM
Readings
329
The readings these charts were drawn from, as a table
TimeStage ft
Sep 27, 2:00 AM14.74
Sep 27, 1:30 AM14.72
Sep 27, 12:30 AM14.72
Sep 26, 11:30 PM14.68
Sep 26, 10:30 PM14.70
Sep 26, 9:30 PM14.67
Sep 26, 8:30 PM14.65
Sep 26, 7:30 PM14.67
Sep 26, 6:30 PM14.62
Sep 26, 5:00 PM14.63
Sep 26, 4:30 PM14.62
Sep 26, 3:30 PM14.66
Sep 26, 2:30 PM14.61
Sep 26, 1:30 PM14.65
Sep 26, 12:30 PM14.69
Sep 26, 11:30 AM14.67
Sep 26, 10:30 AM14.64
Sep 26, 9:30 AM14.61
Sep 26, 8:30 AM14.60
Sep 26, 7:30 AM14.55
Sep 26, 6:30 AM14.55
Sep 26, 5:30 AM14.52
Sep 26, 4:30 AM14.49
Sep 26, 3:30 AM14.46
Sep 26, 2:30 AM14.44
Sep 26, 1:30 AM14.37
Sep 26, 12:30 AM14.41
Sep 25, 11:30 PM14.38
Sep 25, 10:30 PM14.38
Sep 25, 9:30 PM14.37
Sep 25, 8:30 PM14.36
Sep 25, 7:30 PM14.34
Sep 25, 6:30 PM14.33
Sep 25, 5:30 PM14.32
Sep 25, 4:30 PM14.33
Sep 25, 3:30 PM14.31
Sep 25, 2:30 PM14.35
Sep 25, 1:30 PM14.35
Sep 25, 12:30 PM14.40
Sep 25, 11:30 AM14.52
Sep 25, 10:30 AM14.71
Sep 25, 9:30 AM14.75
Sep 25, 8:30 AM14.79
Sep 25, 7:30 AM14.85
Sep 25, 6:30 AM14.80
Sep 25, 5:30 AM14.79
Sep 25, 4:30 AM14.78
Sep 25, 3:30 AM14.75
Sep 25, 2:30 AM14.74
Sep 25, 1:30 AM14.71
Sep 25, 12:30 AM14.68
Sep 24, 11:30 PM14.67
Sep 24, 10:30 PM14.67
Sep 24, 9:30 PM14.67
Sep 24, 8:30 PM14.67
Sep 24, 7:30 PM14.65
Sep 24, 6:30 PM14.68
Sep 24, 5:30 PM14.72
Sep 24, 4:30 PM14.73
Sep 24, 3:30 PM14.77
Sep 24, 2:30 PM14.91
Sep 24, 1:30 PM14.96
Sep 24, 12:30 PM15.09
Sep 24, 11:30 AM15.22
Sep 24, 10:30 AM15.21
Sep 24, 9:30 AM15.25
Sep 24, 8:30 AM15.39
Sep 24, 7:30 AM15.39
Sep 24, 6:30 AM15.49
Sep 24, 5:30 AM15.46
Sep 24, 4:30 AM15.38
Sep 24, 3:30 AM15.35
Sep 24, 2:30 AM15.30
Sep 24, 1:00 AM15.23
Sep 24, 12:30 AM15.20
Sep 23, 11:30 PM15.17
Sep 23, 10:30 PM15.10
Sep 23, 9:30 PM15.08
Sep 23, 8:30 PM15.02
Sep 23, 7:30 PM14.97
Sep 23, 6:30 PM14.93
Sep 23, 5:30 PM14.87
Sep 23, 4:30 PM14.83
Sep 23, 3:30 PM14.79
Sep 23, 2:30 PM14.74
Sep 23, 1:30 PM14.68
Sep 23, 12:30 PM14.62
Sep 23, 11:30 AM14.60
Sep 23, 10:30 AM14.58
Sep 23, 9:30 AM14.58
Sep 23, 8:30 AM14.56
Sep 23, 7:30 AM14.58
Sep 23, 6:30 AM14.55
Sep 23, 5:30 AM14.58
Sep 23, 4:30 AM14.61
Sep 23, 3:30 AM14.63
Sep 23, 2:30 AM14.69
Sep 23, 1:30 AM14.76
Sep 23, 12:30 AM14.83
Sep 22, 11:30 PM14.93
Sep 22, 10:30 PM15.04
Sep 22, 9:30 PM15.20
Sep 22, 8:30 PM15.38
Sep 22, 7:30 PM15.63
Sep 22, 6:30 PM15.96
Sep 22, 5:30 PM16.06
Sep 22, 4:30 PM16.24
Sep 22, 3:30 PM16.59
Sep 22, 2:30 PM16.77
Sep 22, 1:30 PM16.81
Sep 22, 12:30 PM16.91
Sep 22, 11:30 AM17.04
Sep 22, 10:30 AM16.95
Sep 22, 9:30 AM16.87
Sep 22, 8:30 AM16.79
Sep 22, 7:30 AM16.69
Sep 22, 6:30 AM16.66
Sep 22, 5:30 AM16.57
Sep 22, 4:30 AM16.51
Sep 22, 3:30 AM16.46
Sep 22, 2:30 AM16.40
Sep 22, 1:30 AM16.36
Sep 22, 12:30 AM16.33
Sep 21, 11:30 PM16.30
Sep 21, 10:30 PM16.33
Sep 21, 9:30 PM16.34
Sep 21, 8:30 PM16.37
Sep 21, 7:30 PM16.43
Sep 21, 6:30 PM16.48
Sep 21, 5:30 PM16.56
Sep 21, 4:30 PM16.67
Sep 21, 3:30 PM17.02
Sep 21, 2:30 PM16.97
Sep 21, 1:30 PM16.92
Sep 21, 12:30 PM16.88
Sep 21, 11:30 AM16.85
Sep 21, 10:30 AM16.84
Sep 21, 9:30 AM16.77
Sep 21, 8:30 AM16.78
Sep 21, 7:30 AM16.83
Sep 21, 6:30 AM16.85
Sep 21, 5:30 AM16.89
Sep 21, 4:30 AM16.94
Sep 21, 3:30 AM16.90
Sep 21, 2:30 AM17.03
Sep 21, 1:30 AM17.11
Sep 21, 12:30 AM17.19
Sep 20, 11:30 PM17.19
Sep 20, 10:30 PM17.30
Sep 20, 9:30 PM17.35
Sep 20, 8:30 PM17.52
Sep 20, 7:30 PM17.58
Sep 20, 6:30 PM17.68
Sep 20, 5:30 PM17.73
Sep 20, 4:30 PM17.80
Sep 20, 3:30 PM17.93
Sep 20, 2:30 PM17.94
Sep 20, 1:30 PM17.96
Sep 20, 12:30 PM17.98
Sep 20, 11:30 AM17.98
Sep 20, 10:30 AM18.00
Sep 20, 9:30 AM18.05
Sep 20, 8:30 AM18.05
Sep 20, 7:30 AM18.11
Sep 20, 6:30 AM18.17
Sep 20, 5:30 AM18.16
Sep 20, 4:30 AM18.22
Sep 20, 3:30 AM18.24
Sep 20, 2:30 AM18.26
Water level, 30 days at Mississippi River at Alton Il: the water from 14.31 to 19.77 feet of stage, the latest 14.74 feet.WATER LEVEL, 30 DAYSFTHIGH 19.77 FT, SEP 13, 1:00 PM · LOW 14.31 FT, SEP 25, 3:30 PM1416182022Aug 28Sep 2Sep 7Sep 12Sep 17Sep 2214.74
Latest
14.74 ftSep 27, 2:00 AM
Highest
19.77 ftSep 13, 1:00 PM
Lowest
14.31 ftSep 25, 3:30 PM
Range
5.46 fthighest less lowest
Change
Fell 4.71 ftsince Aug 28, 2:30 AM
Readings
1,413
The readings these charts were drawn from, as a table
DayHigh ftLow ftAverage ftLast ftReadings
Sep 2714.7414.6914.7214.745
Sep 2614.7014.3714.5914.6847
Sep 2514.8514.3114.5514.3848
Sep 2415.4914.6515.0414.6746
Sep 2315.1714.5414.7615.1748
Sep 2217.0814.9316.3014.9346
Sep 2117.1916.3016.7616.3046
Sep 2018.2617.1917.8817.1943
Sep 1918.8418.5218.7418.5243
Sep 1819.3818.8519.1318.8548
Sep 1719.3919.1119.3119.1148
Sep 1619.6419.3919.5519.3946
Sep 1519.5719.3219.4619.5747
Sep 1419.3618.9319.1919.3448
Sep 1319.7719.3819.6419.3848
Sep 1219.5319.1719.3119.5348
Sep 1119.2719.1619.2319.2548
Sep 1019.1718.9819.0919.1646
Sep 919.2719.0719.2019.0748
Sep 819.3019.2019.2519.2448
Sep 719.3219.1719.2719.2548
Sep 619.3319.1819.2819.3247
Sep 519.4519.1819.3319.2946
Sep 419.4919.2319.4019.3046
Sep 319.5419.3719.4719.4948
Sep 219.3519.0219.1819.3548
Sep 119.7219.3019.5719.3048
Aug 3119.6619.2619.5119.5948
Aug 3019.3318.9019.1219.2948
Aug 2919.2119.0119.1219.0148
Aug 2819.4519.0919.1919.1743

How it reports

Rank
306of 417 in Illinois, Sep 27
Schedule
every 30 minon the hour's :00 and :30
Reports received, 24 hours
47 of 4897.9% of its schedule
Reports received, 7 days
61 of 6298.3% of its schedule
Longest silence, 7 days
1 hourfrom Sep 26, 5:00 PM
Latest report
Sep 27, 2:00 AMlocal time
Time to reach Storm Station
15 min9 in 10 within 15 min

Its schedule is one report every 30 min, 48 in 24 hours. Two reports in the same 30 min count as one received.

Near Mississippi River at Alton Il

How to read a gauge

A gauge measures the height of the water where it stands, its stage, in feet above a fixed mark at that gauge. Two gauges' stages are not comparable: each is measured from its own mark, and a reservoir's is often its height above sea level.

The stage shown is the latest the gauge reported, with the time it reported it. Storm Station hears each gauge on its own schedule and ranks it among its state's stations by how reliably it reports: that is its 247 rank.