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Live/Water/Illinois/Markham - Calumet Union

Markham - Calumet Union

A water gauge in Cook County, Illinois. Its stage was 3.16 ft as of Oct 16, 1:00 AM CDT.

Gauge MKHI2Cook County, IllinoisEvery gauge in Illinois

Stage now
3.16 ftreported Oct 16, 1:00 AM CDT
24 hour change
Rose 0.80 ftsince Oct 15, 1:00 AM
Rank
621of 1,393 in Illinois, Oct 16
Elevation
628 ftabove sea level
County
Cook County
Position
41.7300° N, 87.6664° W
Record since
2019

Water level

Markham - Calumet Union

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 Markham - Calumet Union: the water from 2.34 to 4.01 feet of stage, the latest 3.16 feet.WATER LEVEL, 24 HOURSFTHIGH 4.01 FT, OCT 15, 9:00 PM · LOW 2.34 FT, OCT 15, 2:30 PM2.02.53.03.54.04.53 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 163.16
Latest
3.16 ftOct 16, 1:00 AM
Highest
4.01 ftOct 15, 9:00 PM
Lowest
2.34 ftOct 15, 2:30 PM
Range
1.67 fthighest less lowest
Change
Rose 0.80 ftsince Oct 15, 1:30 AM
Readings
95
The readings these charts were drawn from, as a table
TimeStage ft
Oct 16, 1:00 AM3.16
Oct 16, 12:45 AM3.20
Oct 16, 12:30 AM3.24
Oct 16, 12:15 AM3.29
Oct 16, 12:00 AM3.34
Oct 15, 11:45 PM3.39
Oct 15, 11:30 PM3.44
Oct 15, 11:15 PM3.50
Oct 15, 11:00 PM3.56
Oct 15, 10:45 PM3.62
Oct 15, 10:30 PM3.69
Oct 15, 10:15 PM3.76
Oct 15, 10:00 PM3.83
Oct 15, 9:45 PM3.90
Oct 15, 9:30 PM3.95
Oct 15, 9:15 PM4.00
Oct 15, 9:00 PM4.01
Oct 15, 8:45 PM4.00
Oct 15, 8:30 PM3.95
Oct 15, 8:15 PM3.88
Oct 15, 8:00 PM3.77
Oct 15, 7:45 PM3.68
Oct 15, 7:30 PM3.63
Oct 15, 7:15 PM3.57
Oct 15, 7:00 PM3.47
Oct 15, 6:45 PM3.30
Oct 15, 6:30 PM2.97
Oct 15, 6:15 PM2.71
Oct 15, 6:00 PM2.50
Oct 15, 5:45 PM2.40
Oct 15, 5:30 PM2.39
Oct 15, 5:15 PM2.35
Oct 15, 5:00 PM2.35
Oct 15, 4:45 PM2.34
Oct 15, 4:30 PM2.35
Oct 15, 4:15 PM2.35
Oct 15, 4:00 PM2.35
Oct 15, 3:45 PM2.34
Oct 15, 3:30 PM2.34
Oct 15, 3:15 PM2.34
Oct 15, 3:00 PM2.34
Oct 15, 2:45 PM2.34
Oct 15, 2:30 PM2.34
Oct 15, 2:15 PM2.35
Oct 15, 2:00 PM2.35
Oct 15, 1:45 PM2.35
Oct 15, 1:30 PM2.35
Oct 15, 1:15 PM2.35
Oct 15, 1:00 PM2.35
Oct 15, 12:45 PM2.35
Oct 15, 12:30 PM2.35
Oct 15, 12:15 PM2.35
Oct 15, 12:00 PM2.35
Oct 15, 11:45 AM2.35
Oct 15, 11:30 AM2.35
Oct 15, 11:15 AM2.35
Oct 15, 11:00 AM2.35
Oct 15, 10:45 AM2.35
Oct 15, 10:30 AM2.35
Oct 15, 10:15 AM2.35
Oct 15, 10:00 AM2.35
Oct 15, 9:45 AM2.35
Oct 15, 9:30 AM2.35
Oct 15, 9:15 AM2.35
Oct 15, 9:00 AM2.35
Oct 15, 8:45 AM2.35
Oct 15, 8:30 AM2.35
Oct 15, 8:15 AM2.35
Oct 15, 8:00 AM2.35
Oct 15, 7:45 AM2.35
Oct 15, 7:30 AM2.35
Oct 15, 7:15 AM2.35
Oct 15, 7:00 AM2.35
Oct 15, 6:45 AM2.35
Oct 15, 6:30 AM2.35
Oct 15, 6:15 AM2.35
Oct 15, 6:00 AM2.35
Oct 15, 5:45 AM2.35
Oct 15, 5:30 AM2.35
Oct 15, 5:15 AM2.35
Oct 15, 5:00 AM2.35
Oct 15, 4:45 AM2.35
Oct 15, 4:30 AM2.36
Oct 15, 4:15 AM2.36
Oct 15, 4:00 AM2.36
Oct 15, 3:45 AM2.36
Oct 15, 3:30 AM2.36
Oct 15, 3:15 AM2.36
Oct 15, 3:00 AM2.36
Oct 15, 2:45 AM2.36
Oct 15, 2:30 AM2.36
Oct 15, 2:15 AM2.36
Oct 15, 2:00 AM2.36
Oct 15, 1:45 AM2.36
Oct 15, 1:30 AM2.36
Water level, 7 days at Markham - Calumet Union: the water from 2.34 to 4.01 feet of stage, the latest 3.16 feet.WATER LEVEL, 7 DAYSFTHIGH 4.01 FT, OCT 15, 9:00 PM · LOW 2.34 FT, OCT 14, 2:15 AM2.02.53.03.54.04.5Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Fri 163.16
Latest
3.16 ftOct 16, 1:00 AM
Highest
4.01 ftOct 15, 9:00 PM
Lowest
2.34 ftOct 14, 2:15 AM
Range
1.67 fthighest less lowest
Change
Rose 0.69 ftsince Oct 9, 1:30 AM
Readings
668
The readings these charts were drawn from, as a table
TimeStage ft
Oct 16, 1:00 AM3.16
Oct 16, 12:45 AM3.20
Oct 15, 11:45 PM3.39
Oct 15, 10:45 PM3.62
Oct 15, 9:45 PM3.90
Oct 15, 8:45 PM4.00
Oct 15, 7:45 PM3.68
Oct 15, 6:45 PM3.30
Oct 15, 5:45 PM2.40
Oct 15, 4:45 PM2.34
Oct 15, 3:45 PM2.34
Oct 15, 2:45 PM2.34
Oct 15, 1:45 PM2.35
Oct 15, 12:45 PM2.35
Oct 15, 11:45 AM2.35
Oct 15, 10:45 AM2.35
Oct 15, 9:45 AM2.35
Oct 15, 8:45 AM2.35
Oct 15, 7:45 AM2.35
Oct 15, 6:45 AM2.35
Oct 15, 5:45 AM2.35
Oct 15, 4:45 AM2.35
Oct 15, 3:45 AM2.36
Oct 15, 2:45 AM2.36
Oct 15, 1:45 AM2.36
Oct 15, 12:45 AM2.36
Oct 14, 11:45 PM2.35
Oct 14, 10:45 PM2.36
Oct 14, 9:45 PM2.36
Oct 14, 8:45 PM2.37
Oct 14, 7:45 PM2.37
Oct 14, 6:45 PM2.38
Oct 14, 5:45 PM2.38
Oct 14, 4:45 PM2.38
Oct 14, 3:45 PM2.38
Oct 14, 2:45 PM2.37
Oct 14, 1:45 PM2.36
Oct 14, 12:45 PM2.36
Oct 14, 11:45 AM2.36
Oct 14, 10:45 AM2.36
Oct 14, 9:45 AM2.36
Oct 14, 8:45 AM2.35
Oct 14, 7:45 AM2.35
Oct 14, 6:45 AM2.34
Oct 14, 5:45 AM2.34
Oct 14, 4:45 AM2.34
Oct 14, 3:45 AM2.34
Oct 14, 2:45 AM2.34
Oct 14, 1:45 AM2.35
Oct 14, 12:45 AM2.35
Oct 13, 11:45 PM2.35
Oct 13, 10:45 PM2.35
Oct 13, 9:45 PM2.36
Oct 13, 8:45 PM2.36
Oct 13, 7:45 PM2.36
Oct 13, 6:45 PM2.36
Oct 13, 5:45 PM2.37
Oct 13, 4:45 PM2.37
Oct 13, 3:45 PM2.37
Oct 13, 2:45 PM2.37
Oct 13, 1:45 PM2.36
Oct 13, 12:45 PM2.36
Oct 13, 11:45 AM2.36
Oct 13, 10:45 AM2.36
Oct 13, 9:45 AM2.36
Oct 13, 8:45 AM2.36
Oct 13, 7:45 AM2.36
Oct 13, 6:45 AM2.36
Oct 13, 5:45 AM2.36
Oct 13, 4:45 AM2.36
Oct 13, 3:45 AM2.36
Oct 13, 2:45 AM2.36
Oct 13, 1:45 AM2.37
Oct 13, 12:45 AM2.37
Oct 12, 11:45 PM2.36
Oct 12, 10:45 PM2.36
Oct 12, 9:45 PM2.36
Oct 12, 8:45 PM2.37
Oct 12, 7:45 PM2.37
Oct 12, 6:45 PM2.38
Oct 12, 5:45 PM2.38
Oct 12, 4:45 PM2.38
Oct 12, 3:45 PM2.38
Oct 12, 2:45 PM2.38
Oct 12, 1:45 PM2.38
Oct 12, 12:45 PM2.38
Oct 12, 11:45 AM2.38
Oct 12, 10:45 AM2.38
Oct 12, 9:45 AM2.38
Oct 12, 8:45 AM2.37
Oct 12, 7:45 AM2.37
Oct 12, 6:45 AM2.37
Oct 12, 5:45 AM2.37
Oct 12, 4:45 AM2.37
Oct 12, 3:45 AM2.37
Oct 12, 2:45 AM2.39
Oct 12, 1:45 AM2.38
Oct 12, 12:45 AM2.38
Oct 11, 11:45 PM2.39
Oct 11, 10:45 PM2.39
Oct 11, 9:45 PM2.38
Oct 11, 8:45 PM2.39
Oct 11, 7:45 PM2.39
Oct 11, 6:45 PM2.40
Oct 11, 5:45 PM2.40
Oct 11, 4:45 PM2.40
Oct 11, 3:45 PM2.40
Oct 11, 2:45 PM2.40
Oct 11, 1:45 PM2.41
Oct 11, 12:45 PM2.40
Oct 11, 11:45 AM2.40
Oct 11, 10:45 AM2.40
Oct 11, 9:45 AM2.40
Oct 11, 8:45 AM2.40
Oct 11, 7:45 AM2.40
Oct 11, 6:45 AM2.40
Oct 11, 5:45 AM2.39
Oct 11, 4:45 AM2.39
Oct 11, 3:45 AM2.40
Oct 11, 2:45 AM2.40
Oct 11, 1:45 AM2.40
Oct 11, 12:45 AM2.40
Oct 10, 11:45 PM2.40
Oct 10, 10:45 PM2.40
Oct 10, 9:45 PM2.41
Oct 10, 8:45 PM2.41
Oct 10, 7:45 PM2.41
Oct 10, 6:45 PM2.42
Oct 10, 5:45 PM2.42
Oct 10, 4:45 PM2.42
Oct 10, 3:45 PM2.42
Oct 10, 2:45 PM2.43
Oct 10, 1:45 PM2.42
Oct 10, 12:45 PM2.43
Oct 10, 11:45 AM2.43
Oct 10, 10:45 AM2.43
Oct 10, 9:45 AM2.43
Oct 10, 8:45 AM2.43
Oct 10, 7:45 AM2.43
Oct 10, 6:45 AM2.43
Oct 10, 5:45 AM2.42
Oct 10, 4:45 AM2.42
Oct 10, 3:45 AM2.43
Oct 10, 2:45 AM2.44
Oct 10, 1:45 AM2.44
Oct 10, 12:45 AM2.45
Oct 9, 11:45 PM2.45
Oct 9, 10:45 PM2.46
Oct 9, 9:45 PM2.46
Oct 9, 8:45 PM2.47
Oct 9, 7:45 PM2.47
Oct 9, 6:45 PM2.48
Oct 9, 5:45 PM2.48
Oct 9, 4:45 PM2.48
Oct 9, 3:45 PM2.48
Oct 9, 2:45 PM2.49
Oct 9, 1:45 PM2.49
Oct 9, 12:45 PM2.49
Oct 9, 11:45 AM2.49
Oct 9, 10:45 AM2.48
Oct 9, 9:45 AM2.48
Oct 9, 8:45 AM2.48
Oct 9, 7:45 AM2.48
Oct 9, 6:45 AM2.48
Oct 9, 5:45 AM2.47
Oct 9, 4:45 AM2.47
Oct 9, 3:45 AM2.48
Oct 9, 2:45 AM2.46
Oct 9, 1:45 AM2.47
Water level, 30 days at Markham - Calumet Union: the water from 2.34 to 6.61 feet of stage, the latest 3.16 feet.WATER LEVEL, 30 DAYSFTHIGH 6.61 FT, SEP 17, 9:15 AM · LOW 2.34 FT, OCT 14, 2:15 AM2468Sep 16Sep 21Sep 26Oct 1Oct 6Oct 113.16
Latest
3.16 ftOct 16, 1:00 AM
Highest
6.61 ftSep 17, 9:15 AM
Lowest
2.34 ftOct 14, 2:15 AM
Range
4.27 fthighest less lowest
Change
Rose 0.73 ftsince Sep 16, 1:30 AM
Readings
2,836
The readings these charts were drawn from, as a table
DayHigh ftLow ftAverage ftLast ftReadings
Oct 163.343.163.253.165
Oct 154.012.342.663.3996
Oct 142.382.342.362.3596
Oct 132.372.352.362.3596
Oct 122.392.362.372.3696
Oct 112.412.382.402.3994
Oct 102.452.402.422.4096
Oct 92.492.452.482.4595
Oct 82.502.482.492.4894
Oct 72.832.492.622.5091
Oct 62.902.822.842.8295
Oct 53.372.552.792.9195
Oct 42.732.592.652.6096
Oct 33.072.732.872.7396
Oct 25.443.073.913.0896
Oct 15.482.953.555.4695
Sep 304.352.433.293.4894
Sep 292.462.442.452.4496
Sep 282.482.462.472.4695
Sep 272.512.482.502.4895
Sep 262.542.512.522.5195
Sep 252.902.542.752.5495
Sep 242.962.902.932.9095
Sep 233.552.963.262.9696
Sep 223.602.853.233.5590
Sep 213.933.023.383.0296
Sep 205.563.954.733.9589
Sep 193.992.623.133.9989
Sep 183.222.672.852.6796
Sep 176.612.414.053.2395
Sep 162.482.412.442.4188

How it reports

Rank
621of 1,393 in Illinois, Oct 16
Schedule
every 15 minon the hour's :00, :15, :30 and :45
Reports received, 24 hours
93 of 9696.8% of its schedule
Reports received, 7 days
668 of 67299.4% of its schedule
Longest silence, 7 days
45 minfrom Oct 15, 11:45 AM
Latest report
Oct 16, 12:45 AMlocal time
Time to reach Storm Station
22 min9 in 10 within 27 min

From Storm Station's own record of every report it heard from this station.

Its schedule is one report every 15 min, 96 in 24 hours. Two reports in the same 15 min count as one received.

Ranking Statistics

247 score96.8of 100

Illinois median
95.9the median score of 1,393 stations
Scoring higher
620stations in Illinois
Sharing its score
9ranks 621 to 629
Points deducted
3.22.3 arrival, 0.5 forecast check, 0.3 reports received
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; Illinois median 100.0, 100.0, 94.7
Next above
UINI2rank 619; ahead on 247 score 96.9 against 96.8
Next below
SCHI2rank 622; behind on reports received 99.1% against 98.8%

Equal scores are ordered by the share of scheduled reports received, then the reports due in the week (the longer record first), then the median arrival, then the longest silence.

  1. Reports receivedweight 3599.134.7 of 35 pointsIllinois median 99.1666 of 672 scheduled reports received in 7 days
  2. Arrivalweight 1076.97.7 of 10 pointsIllinois median 96.3half its reports arrived within 22 min
  3. Continuityweight 10100.010.0 of 10 pointsIllinois median 100.0longest silence 45 min, on a schedule of one report every 15 min
  4. Accuracyweight 20-20.0 of 20 points, at the medianIllinois median 100.0-
  5. Instrument checksweight 15-15.0 of 15 points, at the medianIllinois median 100.0-
  6. Forecast checkweight 10-9.5 of 10 points, at the medianIllinois median 94.7-

The score is the weighted mean of its six parts, from the last 7 days. How a station is ranked sets out each part.

How each part is scored
Reports received
Full marks for every scheduled report received, none for none, in proportion between
Arrival
Full marks for a median arrival within 10 min, none at 60 min
Continuity
Full marks for a longest silence of 3 reports or less (45 min), none for 72 (18 h)
Accuracy
Full marks within 1.5 °F of its reference, typically, none beyond 8.0 °F
Instrument checks
Full marks for no reading failed, none for 5 per cent or more
Forecast check
Full marks within 2 °F of the forecast on average, none at 8 °F

Near Markham - Calumet Union

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 its 247 score, how reliably it reports and how its readings hold up: that is its 247 rank.