Storm Station

Live/Water/Maryland/St Marys River at Great Mills

St Marys River at Great Mills

A gauge on the St Marys River in St Marys County, Maryland. Its stage was 1.66 ft as of Sep 27, 8:15 AM EDT.

Gauge GMRM2St Marys County, MarylandEvery gauge in Maryland

Stage now
1.66 ftreported Sep 27, 8:15 AM EDT
24 hour change
Rose 0.13 ftsince Sep 26, 8:15 AM
Rank
129of 403 in Maryland, Sep 27
Elevation
39 ftabove sea level
County
St Marys County
Position
38.2416° N, 76.5036° W
Record since
2010

Water level

St Marys River at Great Mills

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 St Marys River at Great Mills: the water from 1.51 to 1.72 feet of stage, the latest 1.66 feet.WATER LEVEL, 24 HOURSFTHIGH 1.72 FT, SEP 27, 3:30 AM · LOW 1.51 FT, SEP 26, 2:15 PM1.51.61.71.89 AM12 PM3 PM6 PM9 PMSep 273 AM6 AM1.66
Latest
1.66 ftSep 27, 8:15 AM
Highest
1.72 ftSep 27, 3:30 AM
Lowest
1.51 ftSep 26, 2:15 PM
Range
0.21 fthighest less lowest
Change
Rose 0.13 ftsince Sep 26, 9:00 AM
Readings
94
The readings these charts were drawn from, as a table
TimeStage ft
Sep 27, 8:15 AM1.66
Sep 27, 8:00 AM1.66
Sep 27, 7:45 AM1.66
Sep 27, 7:30 AM1.67
Sep 27, 7:15 AM1.67
Sep 27, 7:00 AM1.68
Sep 27, 6:45 AM1.68
Sep 27, 6:30 AM1.68
Sep 27, 6:15 AM1.68
Sep 27, 6:00 AM1.69
Sep 27, 5:45 AM1.69
Sep 27, 5:30 AM1.70
Sep 27, 5:15 AM1.70
Sep 27, 5:00 AM1.70
Sep 27, 4:45 AM1.71
Sep 27, 4:30 AM1.71
Sep 27, 4:15 AM1.71
Sep 27, 4:00 AM1.71
Sep 27, 3:45 AM1.71
Sep 27, 3:30 AM1.72
Sep 27, 3:15 AM1.71
Sep 27, 3:00 AM1.71
Sep 27, 2:45 AM1.70
Sep 27, 2:30 AM1.69
Sep 27, 2:15 AM1.69
Sep 27, 2:00 AM1.69
Sep 27, 1:45 AM1.67
Sep 27, 1:30 AM1.65
Sep 27, 1:15 AM1.63
Sep 27, 1:00 AM1.62
Sep 27, 12:45 AM1.61
Sep 27, 12:30 AM1.60
Sep 27, 12:15 AM1.60
Sep 27, 12:00 AM1.60
Sep 26, 11:45 PM1.59
Sep 26, 11:30 PM1.58
Sep 26, 11:15 PM1.57
Sep 26, 11:00 PM1.57
Sep 26, 10:45 PM1.56
Sep 26, 10:30 PM1.56
Sep 26, 10:15 PM1.56
Sep 26, 10:00 PM1.55
Sep 26, 9:45 PM1.55
Sep 26, 9:30 PM1.54
Sep 26, 9:15 PM1.54
Sep 26, 9:00 PM1.54
Sep 26, 8:45 PM1.54
Sep 26, 8:30 PM1.53
Sep 26, 8:15 PM1.53
Sep 26, 8:00 PM1.52
Sep 26, 7:45 PM1.53
Sep 26, 7:30 PM1.52
Sep 26, 7:15 PM1.52
Sep 26, 7:00 PM1.52
Sep 26, 6:45 PM1.52
Sep 26, 6:30 PM1.51
Sep 26, 6:15 PM1.51
Sep 26, 6:00 PM1.51
Sep 26, 5:45 PM1.51
Sep 26, 5:30 PM1.51
Sep 26, 5:15 PM1.51
Sep 26, 5:00 PM1.51
Sep 26, 4:45 PM1.51
Sep 26, 4:30 PM1.51
Sep 26, 4:15 PM1.51
Sep 26, 4:00 PM1.51
Sep 26, 3:45 PM1.51
Sep 26, 3:30 PM1.51
Sep 26, 3:15 PM1.52
Sep 26, 3:00 PM1.51
Sep 26, 2:45 PM1.52
Sep 26, 2:30 PM1.52
Sep 26, 2:15 PM1.51
Sep 26, 2:00 PM1.52
Sep 26, 1:45 PM1.52
Sep 26, 1:30 PM1.52
Sep 26, 1:15 PM1.52
Sep 26, 1:00 PM1.52
Sep 26, 12:45 PM1.52
Sep 26, 12:30 PM1.53
Sep 26, 12:15 PM1.53
Sep 26, 12:00 PM1.53
Sep 26, 11:45 AM1.53
Sep 26, 11:30 AM1.53
Sep 26, 11:15 AM1.53
Sep 26, 11:00 AM1.52
Sep 26, 10:45 AM1.53
Sep 26, 10:30 AM1.53
Sep 26, 10:15 AM1.53
Sep 26, 10:00 AM1.53
Sep 26, 9:45 AM1.53
Sep 26, 9:30 AM1.53
Sep 26, 9:15 AM1.53
Sep 26, 9:00 AM1.53
Water level, 7 days at St Marys River at Great Mills: the water from 1.38 to 2.64 feet of stage, the latest 1.66 feet.WATER LEVEL, 7 DAYSFTHIGH 2.64 FT, SEP 23, 8:00 AM · LOW 1.38 FT, SEP 20, 1:45 PM1.01.52.02.53.0Mon 21Tue 22Wed 23Thu 24Fri 25Sat 26Sun 271.66
Latest
1.66 ftSep 27, 8:15 AM
Highest
2.64 ftSep 23, 8:00 AM
Lowest
1.38 ftSep 20, 1:45 PM
Range
1.26 fthighest less lowest
Change
Rose 0.26 ftsince Sep 20, 9:00 AM
Readings
666
The readings these charts were drawn from, as a table
TimeStage ft
Sep 27, 8:15 AM1.66
Sep 27, 7:45 AM1.66
Sep 27, 6:45 AM1.68
Sep 27, 5:45 AM1.69
Sep 27, 4:45 AM1.71
Sep 27, 3:45 AM1.71
Sep 27, 2:45 AM1.70
Sep 27, 1:45 AM1.67
Sep 27, 12:45 AM1.61
Sep 26, 11:45 PM1.59
Sep 26, 10:45 PM1.56
Sep 26, 9:45 PM1.55
Sep 26, 8:45 PM1.54
Sep 26, 7:45 PM1.53
Sep 26, 6:45 PM1.52
Sep 26, 5:45 PM1.51
Sep 26, 4:45 PM1.51
Sep 26, 3:45 PM1.51
Sep 26, 2:45 PM1.52
Sep 26, 1:45 PM1.52
Sep 26, 12:45 PM1.52
Sep 26, 11:45 AM1.53
Sep 26, 10:45 AM1.53
Sep 26, 9:45 AM1.53
Sep 26, 8:45 AM1.53
Sep 26, 7:45 AM1.53
Sep 26, 6:45 AM1.53
Sep 26, 5:45 AM1.53
Sep 26, 4:45 AM1.54
Sep 26, 3:45 AM1.54
Sep 26, 2:45 AM1.54
Sep 26, 1:45 AM1.54
Sep 26, 12:45 AM1.54
Sep 25, 11:45 PM1.55
Sep 25, 10:45 PM1.55
Sep 25, 9:45 PM1.55
Sep 25, 8:45 PM1.55
Sep 25, 7:45 PM1.56
Sep 25, 6:45 PM1.57
Sep 25, 5:45 PM1.57
Sep 25, 4:45 PM1.57
Sep 25, 3:45 PM1.57
Sep 25, 2:45 PM1.58
Sep 25, 1:45 PM1.58
Sep 25, 12:45 PM1.60
Sep 25, 11:45 AM1.61
Sep 25, 10:45 AM1.61
Sep 25, 9:45 AM1.62
Sep 25, 8:45 AM1.62
Sep 25, 7:45 AM1.62
Sep 25, 6:45 AM1.62
Sep 25, 5:45 AM1.63
Sep 25, 4:45 AM1.63
Sep 25, 3:45 AM1.64
Sep 25, 2:45 AM1.65
Sep 25, 1:45 AM1.65
Sep 25, 12:45 AM1.66
Sep 24, 11:45 PM1.66
Sep 24, 10:45 PM1.67
Sep 24, 9:45 PM1.68
Sep 24, 8:45 PM1.69
Sep 24, 7:45 PM1.70
Sep 24, 6:45 PM1.72
Sep 24, 5:45 PM1.73
Sep 24, 4:45 PM1.74
Sep 24, 3:45 PM1.75
Sep 24, 2:45 PM1.77
Sep 24, 1:45 PM1.78
Sep 24, 12:45 PM1.79
Sep 24, 11:45 AM1.79
Sep 24, 10:45 AM1.82
Sep 24, 9:45 AM1.83
Sep 24, 8:45 AM1.83
Sep 24, 7:45 AM1.85
Sep 24, 6:45 AM1.87
Sep 24, 5:45 AM1.88
Sep 24, 4:45 AM1.90
Sep 24, 3:45 AM1.91
Sep 24, 2:45 AM1.94
Sep 24, 1:45 AM1.96
Sep 24, 12:45 AM1.98
Sep 23, 11:45 PM2.00
Sep 23, 10:45 PM2.03
Sep 23, 9:45 PM2.05
Sep 23, 8:45 PM2.08
Sep 23, 7:45 PM2.10
Sep 23, 6:45 PM2.12
Sep 23, 5:45 PM2.15
Sep 23, 4:45 PM2.18
Sep 23, 3:45 PM2.22
Sep 23, 2:45 PM2.28
Sep 23, 1:45 PM2.35
Sep 23, 12:45 PM2.44
Sep 23, 11:45 AM2.50
Sep 23, 10:45 AM2.50
Sep 23, 9:45 AM2.53
Sep 23, 8:45 AM2.60
Sep 23, 7:45 AM2.63
Sep 23, 6:45 AM2.50
Sep 23, 5:45 AM2.23
Sep 23, 4:45 AM2.06
Sep 23, 3:45 AM2.03
Sep 23, 2:45 AM2.05
Sep 23, 1:45 AM2.08
Sep 23, 12:45 AM2.11
Sep 22, 11:45 PM2.06
Sep 22, 10:45 PM2.00
Sep 22, 9:45 PM1.96
Sep 22, 8:45 PM1.90
Sep 22, 7:45 PM1.70
Sep 22, 6:45 PM1.62
Sep 22, 5:45 PM1.59
Sep 22, 4:45 PM1.57
Sep 22, 3:45 PM1.53
Sep 22, 2:45 PM1.51
Sep 22, 1:45 PM1.49
Sep 22, 12:45 PM1.47
Sep 22, 11:45 AM1.46
Sep 22, 10:45 AM1.45
Sep 22, 9:45 AM1.44
Sep 22, 8:45 AM1.43
Sep 22, 7:45 AM1.42
Sep 22, 6:45 AM1.42
Sep 22, 5:45 AM1.40
Sep 22, 4:45 AM1.40
Sep 22, 3:45 AM1.39
Sep 22, 2:45 AM1.39
Sep 22, 1:45 AM1.39
Sep 22, 12:45 AM1.39
Sep 21, 11:45 PM1.39
Sep 21, 10:45 PM1.39
Sep 21, 9:45 PM1.39
Sep 21, 8:15 PM1.39
Sep 21, 7:45 PM1.39
Sep 21, 6:45 PM1.38
Sep 21, 5:45 PM1.39
Sep 21, 4:45 PM1.40
Sep 21, 3:45 PM1.39
Sep 21, 2:45 PM1.39
Sep 21, 1:45 PM1.39
Sep 21, 12:45 PM1.39
Sep 21, 11:45 AM1.40
Sep 21, 10:45 AM1.39
Sep 21, 9:45 AM1.39
Sep 21, 8:45 AM1.39
Sep 21, 7:45 AM1.39
Sep 21, 6:45 AM1.39
Sep 21, 5:45 AM1.39
Sep 21, 4:45 AM1.38
Sep 21, 3:45 AM1.38
Sep 21, 2:45 AM1.38
Sep 21, 1:45 AM1.38
Sep 21, 12:45 AM1.38
Sep 20, 11:45 PM1.38
Sep 20, 10:45 PM1.39
Sep 20, 9:45 PM1.39
Sep 20, 8:45 PM1.39
Sep 20, 7:45 PM1.39
Sep 20, 6:45 PM1.39
Sep 20, 5:45 PM1.39
Sep 20, 4:45 PM1.39
Sep 20, 3:45 PM1.39
Sep 20, 2:45 PM1.39
Sep 20, 1:45 PM1.38
Sep 20, 12:45 PM1.39
Sep 20, 11:45 AM1.39
Sep 20, 10:45 AM1.39
Sep 20, 9:45 AM1.40
Water level, 30 days at St Marys River at Great Mills: the water from 1.34 to 5.50 feet of stage, the latest 1.66 feet.WATER LEVEL, 30 DAYSFTHIGH 5.50 FT, SEP 4, 4:45 AM · LOW 1.34 FT, SEP 2, 1:45 PM02468Aug 28Sep 2Sep 7Sep 12Sep 17Sep 221.66
Latest
1.66 ftSep 27, 8:15 AM
Highest
5.50 ftSep 4, 4:45 AM
Lowest
1.34 ftSep 2, 1:45 PM
Range
4.16 fthighest less lowest
Change
Rose 0.24 ftsince Aug 28, 9:00 AM
Readings
2,831
The readings these charts were drawn from, as a table
DayHigh ftLow ftAverage ftLast ftReadings
Sep 271.721.601.681.6634
Sep 261.591.511.531.5996
Sep 251.661.551.601.5596
Sep 242.001.661.811.6696
Sep 232.642.002.242.0096
Sep 222.061.391.552.0696
Sep 211.401.381.391.3992
Sep 201.411.381.391.3890
Sep 191.431.391.421.4094
Sep 181.471.381.441.4396
Sep 171.401.371.391.3988
Sep 161.411.381.401.4092
Sep 151.431.391.421.4096
Sep 141.461.431.441.4392
Sep 131.501.451.471.4696
Sep 121.471.451.461.4596
Sep 111.481.461.471.4696
Sep 101.511.461.491.4792
Sep 91.541.501.521.5193
Sep 81.591.531.561.5396
Sep 71.691.601.641.6096
Sep 61.851.691.771.6992
Sep 52.271.862.031.8688
Sep 45.501.383.242.2896
Sep 31.381.351.361.3696
Sep 21.381.341.371.3696
Sep 11.391.361.381.3696
Aug 311.381.351.381.3896
Aug 301.401.361.391.3796
Aug 291.421.391.401.3996
Aug 281.421.401.421.4260

How it reports

Rank
129of 403 in Maryland, Sep 27
Schedule
every houron the hour's :15
Reports received, 24 hours
24 of 24100% of its schedule
Reports received, 7 days
36 of 36100% of its schedule, 37 reports in all
Longest silence, 7 days
1 hourfrom Sep 25, 8:15 PM
Latest report
Sep 27, 8:15 AMlocal time
Time to reach Storm Station
26 min9 in 10 within 26 min

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

Near St Marys River at Great Mills

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.