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Live/Water/Illinois/East Branch Du Page River at Bolingbrook

East Branch Du Page River at Bolingbrook

A gauge on the East Branch Du Page River in Will County, Illinois. Its stage was 15.23 ft as of Oct 15, 9:40 PM CDT.

Gauge BOLI2Will County, IllinoisEvery gauge in Illinois

Stage now
15.23 ftreported Oct 15, 9:40 PM CDT
24 hour change
Rose 0.11 ftsince Oct 14, 9:40 PM
Elevation
653 ftabove sea level
County
Will County
Position
41.7181° N, 88.0706° W
Record since
2008

Water level

East Branch Du Page River at Bolingbrook

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 East Branch Du Page River at Bolingbrook: the water from 14.97 to 15.23 feet of stage, the latest 15.23 feet.WATER LEVEL, 24 HOURSFTHIGH 15.23 FT, OCT 15, 9:40 PM · LOW 14.97 FT, OCT 15, 9:05 AM14.9015.0015.1015.2015.30Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM15.23
Latest
15.23 ftOct 15, 9:40 PM
Highest
15.23 ftOct 15, 9:40 PM
Lowest
14.97 ftOct 15, 9:05 AM
Range
0.26 fthighest less lowest
Change
Rose 0.15 ftsince Oct 14, 10:00 PM
Readings
285
The readings these charts were drawn from, as a table
TimeStage ft
Oct 15, 9:40 PM15.23
Oct 15, 9:35 PM15.20
Oct 15, 9:30 PM15.20
Oct 15, 9:25 PM15.20
Oct 15, 9:20 PM15.19
Oct 15, 9:15 PM15.21
Oct 15, 9:10 PM15.19
Oct 15, 9:05 PM15.18
Oct 15, 9:00 PM15.19
Oct 15, 8:55 PM15.19
Oct 15, 8:50 PM15.18
Oct 15, 8:45 PM15.18
Oct 15, 8:40 PM15.17
Oct 15, 8:35 PM15.18
Oct 15, 8:30 PM15.16
Oct 15, 8:25 PM15.17
Oct 15, 8:20 PM15.15
Oct 15, 8:15 PM15.17
Oct 15, 8:10 PM15.14
Oct 15, 8:05 PM15.12
Oct 15, 8:00 PM15.12
Oct 15, 7:55 PM15.13
Oct 15, 7:50 PM15.11
Oct 15, 7:45 PM15.11
Oct 15, 7:40 PM15.09
Oct 15, 7:35 PM15.12
Oct 15, 7:30 PM15.09
Oct 15, 7:25 PM15.09
Oct 15, 7:20 PM15.09
Oct 15, 7:15 PM15.09
Oct 15, 7:10 PM15.08
Oct 15, 7:05 PM15.08
Oct 15, 7:00 PM15.08
Oct 15, 6:55 PM15.09
Oct 15, 6:50 PM15.08
Oct 15, 6:45 PM15.12
Oct 15, 6:40 PM15.08
Oct 15, 6:35 PM15.09
Oct 15, 6:30 PM15.08
Oct 15, 6:25 PM15.08
Oct 15, 6:20 PM15.08
Oct 15, 6:15 PM15.10
Oct 15, 6:10 PM15.10
Oct 15, 6:05 PM15.08
Oct 15, 6:00 PM15.08
Oct 15, 5:55 PM15.11
Oct 15, 5:50 PM15.09
Oct 15, 5:45 PM15.10
Oct 15, 5:40 PM15.10
Oct 15, 5:35 PM15.13
Oct 15, 5:30 PM15.11
Oct 15, 5:25 PM15.11
Oct 15, 5:20 PM15.10
Oct 15, 5:15 PM15.11
Oct 15, 5:10 PM15.05
Oct 15, 5:05 PM15.04
Oct 15, 5:00 PM15.04
Oct 15, 4:55 PM15.04
Oct 15, 4:50 PM15.03
Oct 15, 4:45 PM15.03
Oct 15, 4:40 PM15.03
Oct 15, 4:35 PM15.03
Oct 15, 4:30 PM15.02
Oct 15, 4:25 PM15.04
Oct 15, 4:20 PM15.02
Oct 15, 4:15 PM15.02
Oct 15, 4:10 PM15.02
Oct 15, 4:05 PM15.02
Oct 15, 4:00 PM15.02
Oct 15, 3:55 PM15.04
Oct 15, 3:50 PM15.02
Oct 15, 3:45 PM15.01
Oct 15, 3:40 PM15.05
Oct 15, 3:35 PM15.05
Oct 15, 3:30 PM15.01
Oct 15, 3:25 PM15.01
Oct 15, 3:20 PM15.02
Oct 15, 3:15 PM15.01
Oct 15, 3:10 PM15.01
Oct 15, 3:05 PM15.01
Oct 15, 3:00 PM15.05
Oct 15, 2:55 PM15.01
Oct 15, 2:50 PM15.01
Oct 15, 2:45 PM15.01
Oct 15, 2:40 PM15.01
Oct 15, 2:35 PM15.05
Oct 15, 2:30 PM15.01
Oct 15, 2:25 PM15.02
Oct 15, 2:20 PM15.00
Oct 15, 2:15 PM15.00
Oct 15, 2:10 PM15.03
Oct 15, 2:05 PM15.00
Oct 15, 2:00 PM15.03
Oct 15, 1:55 PM15.03
Oct 15, 1:50 PM15.01
Oct 15, 1:45 PM15.04
Oct 15, 1:40 PM15.02
Oct 15, 1:35 PM14.99
Oct 15, 1:30 PM14.99
Oct 15, 1:25 PM15.01
Oct 15, 1:20 PM15.03
Oct 15, 1:15 PM14.99
Oct 15, 1:10 PM15.03
Oct 15, 1:05 PM14.98
Oct 15, 1:00 PM15.02
Oct 15, 12:55 PM15.02
Oct 15, 12:50 PM14.99
Oct 15, 12:45 PM14.98
Oct 15, 12:40 PM14.98
Oct 15, 12:35 PM14.98
Oct 15, 12:30 PM14.98
Oct 15, 12:25 PM14.98
Oct 15, 12:20 PM14.99
Oct 15, 12:15 PM14.97
Oct 15, 12:10 PM15.01
Oct 15, 12:05 PM14.98
Oct 15, 12:00 PM15.00
Oct 15, 11:55 AM14.97
Oct 15, 11:50 AM14.98
Oct 15, 11:45 AM14.98
Oct 15, 11:40 AM14.97
Oct 15, 11:35 AM14.97
Oct 15, 11:30 AM15.00
Oct 15, 11:25 AM14.98
Oct 15, 11:20 AM14.97
Oct 15, 11:15 AM14.99
Oct 15, 11:10 AM14.97
Oct 15, 11:05 AM14.98
Oct 15, 11:00 AM14.98
Oct 15, 10:55 AM14.98
Oct 15, 10:50 AM14.97
Oct 15, 10:45 AM14.97
Oct 15, 10:40 AM14.98
Oct 15, 10:35 AM14.97
Oct 15, 10:30 AM14.97
Oct 15, 10:25 AM14.97
Oct 15, 10:20 AM14.97
Oct 15, 10:15 AM14.97
Oct 15, 10:10 AM15.00
Oct 15, 10:05 AM14.98
Oct 15, 10:00 AM14.98
Oct 15, 9:55 AM14.97
Oct 15, 9:50 AM14.97
Oct 15, 9:45 AM15.00
Oct 15, 9:40 AM14.97
Oct 15, 9:35 AM14.97
Oct 15, 9:30 AM15.00
Oct 15, 9:25 AM14.97
Oct 15, 9:20 AM14.98
Oct 15, 9:15 AM14.99
Oct 15, 9:10 AM15.00
Oct 15, 9:05 AM14.97
Oct 15, 9:00 AM14.99
Oct 15, 8:55 AM14.99
Oct 15, 8:50 AM14.98
Oct 15, 8:45 AM14.98
Oct 15, 8:40 AM14.98
Oct 15, 8:35 AM14.98
Oct 15, 8:30 AM14.98
Oct 15, 8:25 AM15.02
Oct 15, 8:20 AM14.98
Oct 15, 8:15 AM14.99
Oct 15, 8:10 AM14.99
Oct 15, 8:05 AM15.02
Oct 15, 8:00 AM14.99
Oct 15, 7:55 AM15.00
Oct 15, 7:50 AM15.01
Oct 15, 7:45 AM14.99
Oct 15, 7:40 AM15.02
Oct 15, 7:35 AM15.03
Oct 15, 7:30 AM14.99
Oct 15, 7:25 AM14.99
Oct 15, 7:20 AM15.00
Oct 15, 7:15 AM15.00
Oct 15, 7:10 AM15.00
Oct 15, 7:05 AM15.02
Oct 15, 7:00 AM15.01
Oct 15, 6:55 AM15.03
Oct 15, 6:50 AM15.01
Oct 15, 6:45 AM15.03
Oct 15, 6:40 AM15.01
Oct 15, 6:35 AM15.01
Oct 15, 6:30 AM15.02
Oct 15, 6:25 AM15.05
Oct 15, 6:20 AM15.05
Oct 15, 6:15 AM15.02
Oct 15, 6:10 AM15.02
Oct 15, 6:05 AM15.03
Oct 15, 6:00 AM15.06
Oct 15, 5:55 AM15.06
Oct 15, 5:50 AM15.05
Oct 15, 5:45 AM15.07
Oct 15, 5:40 AM15.06
Oct 15, 5:35 AM15.04
Oct 15, 5:30 AM15.05
Oct 15, 5:25 AM15.04
Oct 15, 5:20 AM15.04
Oct 15, 5:15 AM15.04
Oct 15, 5:10 AM15.04
Oct 15, 5:05 AM15.06
Oct 15, 5:00 AM15.05
Oct 15, 4:55 AM15.08
Oct 15, 4:50 AM15.06
Oct 15, 4:45 AM15.05
Oct 15, 4:40 AM15.05
Oct 15, 4:35 AM15.05
Oct 15, 4:30 AM15.06
Oct 15, 4:25 AM15.08
Oct 15, 4:20 AM15.06
Oct 15, 4:15 AM15.09
Oct 15, 4:10 AM15.06
Oct 15, 4:05 AM15.06
Oct 15, 4:00 AM15.06
Oct 15, 3:55 AM15.08
Oct 15, 3:50 AM15.06
Oct 15, 3:45 AM15.06
Oct 15, 3:40 AM15.06
Oct 15, 3:35 AM15.09
Oct 15, 3:30 AM15.09
Oct 15, 3:25 AM15.06
Oct 15, 3:20 AM15.06
Oct 15, 3:15 AM15.08
Oct 15, 3:10 AM15.08
Oct 15, 3:05 AM15.06
Oct 15, 3:00 AM15.07
Oct 15, 2:55 AM15.09
Oct 15, 2:50 AM15.07
Oct 15, 2:45 AM15.07
Oct 15, 2:40 AM15.10
Oct 15, 2:35 AM15.07
Oct 15, 2:30 AM15.09
Oct 15, 2:25 AM15.08
Oct 15, 2:20 AM15.06
Oct 15, 2:15 AM15.07
Oct 15, 2:10 AM15.06
Oct 15, 2:05 AM15.07
Oct 15, 2:00 AM15.10
Oct 15, 1:55 AM15.07
Oct 15, 1:50 AM15.08
Oct 15, 1:45 AM15.06
Oct 15, 1:40 AM15.07
Oct 15, 1:35 AM15.11
Oct 15, 1:30 AM15.07
Oct 15, 1:25 AM15.06
Oct 15, 1:20 AM15.06
Oct 15, 1:15 AM15.07
Oct 15, 1:10 AM15.06
Oct 15, 1:05 AM15.07
Oct 15, 1:00 AM15.06
Oct 15, 12:55 AM15.06
Oct 15, 12:50 AM15.07
Oct 15, 12:45 AM15.06
Oct 15, 12:40 AM15.06
Oct 15, 12:35 AM15.07
Oct 15, 12:30 AM15.07
Oct 15, 12:25 AM15.07
Oct 15, 12:20 AM15.07
Oct 15, 12:15 AM15.07
Oct 15, 12:10 AM15.07
Oct 15, 12:05 AM15.07
Oct 15, 12:00 AM15.08
Oct 14, 11:55 PM15.07
Oct 14, 11:50 PM15.07
Oct 14, 11:45 PM15.07
Oct 14, 11:40 PM15.07
Oct 14, 11:35 PM15.07
Oct 14, 11:30 PM15.07
Oct 14, 11:25 PM15.07
Oct 14, 11:20 PM15.07
Oct 14, 11:15 PM15.07
Oct 14, 11:10 PM15.08
Oct 14, 11:05 PM15.09
Oct 14, 11:00 PM15.07
Oct 14, 10:55 PM15.07
Oct 14, 10:50 PM15.08
Oct 14, 10:45 PM15.07
Oct 14, 10:40 PM15.10
Oct 14, 10:35 PM15.08
Oct 14, 10:30 PM15.08
Oct 14, 10:25 PM15.08
Oct 14, 10:20 PM15.07
Oct 14, 10:15 PM15.08
Oct 14, 10:10 PM15.11
Oct 14, 10:05 PM15.08
Oct 14, 10:00 PM15.08
Water level, 7 days at East Branch Du Page River at Bolingbrook: the water from 14.85 to 15.23 feet of stage, the latest 15.23 feet.WATER LEVEL, 7 DAYSFTHIGH 15.23 FT, OCT 15, 9:40 PM · LOW 14.85 FT, OCT 13, 9:20 AM14.8014.9015.0015.1015.2015.30Fri 9Sat 10Sun 11Mon 12Tue 13Wed 14Thu 1515.23
Latest
15.23 ftOct 15, 9:40 PM
Highest
15.23 ftOct 15, 9:40 PM
Lowest
14.85 ftOct 13, 9:20 AM
Range
0.38 fthighest less lowest
Change
Rose 0.10 ftsince Oct 8, 10:00 PM
Readings
2,013
The readings these charts were drawn from, as a table
TimeStage ft
Oct 15, 9:40 PM15.23
Oct 15, 8:55 PM15.19
Oct 15, 7:55 PM15.13
Oct 15, 6:55 PM15.09
Oct 15, 5:55 PM15.11
Oct 15, 4:55 PM15.04
Oct 15, 3:55 PM15.04
Oct 15, 2:55 PM15.01
Oct 15, 1:55 PM15.03
Oct 15, 12:55 PM15.02
Oct 15, 11:55 AM14.97
Oct 15, 10:55 AM14.98
Oct 15, 9:55 AM14.97
Oct 15, 8:55 AM14.99
Oct 15, 7:55 AM15.00
Oct 15, 6:55 AM15.03
Oct 15, 5:55 AM15.06
Oct 15, 4:55 AM15.08
Oct 15, 3:55 AM15.08
Oct 15, 2:55 AM15.09
Oct 15, 1:55 AM15.07
Oct 15, 12:55 AM15.06
Oct 14, 11:55 PM15.07
Oct 14, 10:55 PM15.07
Oct 14, 9:55 PM15.09
Oct 14, 8:55 PM15.09
Oct 14, 7:55 PM15.10
Oct 14, 6:55 PM15.11
Oct 14, 5:55 PM15.13
Oct 14, 4:55 PM15.10
Oct 14, 3:55 PM15.11
Oct 14, 2:55 PM15.11
Oct 14, 1:55 PM15.12
Oct 14, 12:55 PM15.15
Oct 14, 11:55 AM15.14
Oct 14, 10:55 AM15.13
Oct 14, 9:55 AM15.11
Oct 14, 8:55 AM15.12
Oct 14, 7:55 AM15.07
Oct 14, 6:55 AM15.03
Oct 14, 5:55 AM15.00
Oct 14, 4:55 AM15.00
Oct 14, 3:55 AM15.05
Oct 14, 2:55 AM15.03
Oct 14, 1:55 AM15.00
Oct 14, 12:55 AM14.95
Oct 13, 11:55 PM14.94
Oct 13, 10:55 PM14.92
Oct 13, 9:55 PM14.94
Oct 13, 8:55 PM14.91
Oct 13, 7:55 PM14.90
Oct 13, 6:55 PM14.91
Oct 13, 5:55 PM14.91
Oct 13, 4:55 PM14.92
Oct 13, 3:55 PM14.91
Oct 13, 2:55 PM14.91
Oct 13, 1:55 PM14.92
Oct 13, 12:55 PM14.92
Oct 13, 11:55 AM14.91
Oct 13, 10:55 AM14.90
Oct 13, 9:55 AM14.86
Oct 13, 8:55 AM14.86
Oct 13, 7:55 AM14.89
Oct 13, 6:55 AM14.91
Oct 13, 5:55 AM14.91
Oct 13, 4:55 AM14.93
Oct 13, 3:55 AM14.94
Oct 13, 2:55 AM14.96
Oct 13, 1:55 AM14.99
Oct 13, 12:55 AM14.99
Oct 12, 11:55 PM15.00
Oct 12, 10:55 PM14.97
Oct 12, 9:55 PM14.96
Oct 12, 8:55 PM14.97
Oct 12, 7:55 PM14.96
Oct 12, 6:55 PM14.97
Oct 12, 5:55 PM14.97
Oct 12, 4:55 PM14.96
Oct 12, 3:55 PM14.97
Oct 12, 2:55 PM14.97
Oct 12, 1:55 PM14.92
Oct 12, 12:55 PM14.95
Oct 12, 11:55 AM14.91
Oct 12, 10:55 AM14.90
Oct 12, 9:55 AM14.89
Oct 12, 8:55 AM14.88
Oct 12, 7:55 AM14.90
Oct 12, 6:55 AM14.90
Oct 12, 5:55 AM14.93
Oct 12, 4:55 AM14.95
Oct 12, 3:55 AM14.97
Oct 12, 2:55 AM14.98
Oct 12, 1:55 AM14.98
Oct 12, 12:55 AM14.98
Oct 11, 11:55 PM14.98
Oct 11, 10:55 PM14.99
Oct 11, 9:55 PM14.98
Oct 11, 8:55 PM15.00
Oct 11, 7:55 PM14.98
Oct 11, 6:55 PM14.99
Oct 11, 5:55 PM14.99
Oct 11, 4:55 PM14.97
Oct 11, 3:55 PM14.95
Oct 11, 2:55 PM14.96
Oct 11, 1:55 PM14.95
Oct 11, 12:55 PM14.93
Oct 11, 11:55 AM14.92
Oct 11, 10:55 AM14.92
Oct 11, 9:55 AM14.91
Oct 11, 8:55 AM14.92
Oct 11, 7:55 AM14.91
Oct 11, 6:55 AM14.92
Oct 11, 5:55 AM14.95
Oct 11, 4:55 AM14.96
Oct 11, 3:55 AM15.00
Oct 11, 2:55 AM15.00
Oct 11, 1:55 AM15.02
Oct 11, 12:55 AM15.01
Oct 10, 11:55 PM15.00
Oct 10, 10:55 PM14.99
Oct 10, 9:55 PM15.00
Oct 10, 8:55 PM15.01
Oct 10, 7:55 PM15.02
Oct 10, 6:55 PM15.04
Oct 10, 5:55 PM15.03
Oct 10, 4:55 PM15.03
Oct 10, 3:55 PM15.02
Oct 10, 2:55 PM15.00
Oct 10, 1:55 PM14.99
Oct 10, 12:55 PM14.97
Oct 10, 11:55 AM15.01
Oct 10, 10:55 AM14.99
Oct 10, 9:55 AM15.02
Oct 10, 8:55 AM15.01
Oct 10, 7:55 AM15.02
Oct 10, 6:55 AM15.02
Oct 10, 5:55 AM15.06
Oct 10, 4:55 AM15.06
Oct 10, 3:55 AM15.06
Oct 10, 2:55 AM15.07
Oct 10, 1:55 AM15.08
Oct 10, 12:55 AM15.10
Oct 9, 11:55 PM15.08
Oct 9, 10:55 PM15.07
Oct 9, 9:55 PM15.09
Oct 9, 8:55 PM15.08
Oct 9, 7:55 PM15.07
Oct 9, 6:55 PM15.07
Oct 9, 5:55 PM15.10
Oct 9, 4:55 PM15.07
Oct 9, 3:55 PM15.07
Oct 9, 2:55 PM15.09
Oct 9, 1:55 PM15.05
Oct 9, 12:55 PM15.04
Oct 9, 11:55 AM15.03
Oct 9, 10:55 AM15.03
Oct 9, 9:55 AM15.06
Oct 9, 8:55 AM15.08
Oct 9, 7:55 AM15.05
Oct 9, 6:55 AM15.05
Oct 9, 5:55 AM15.06
Oct 9, 4:55 AM15.09
Oct 9, 3:55 AM15.11
Oct 9, 2:55 AM15.12
Oct 9, 1:55 AM15.15
Oct 9, 12:55 AM15.14
Oct 8, 11:55 PM15.18
Oct 8, 10:55 PM15.13
Water level, 30 days at East Branch Du Page River at Bolingbrook: the water from 14.66 to 19.39 feet of stage, the latest 15.23 feet.WATER LEVEL, 30 DAYSFTHIGH 19.39 FT, SEP 20, 11:30 PM · LOW 14.66 FT, SEP 16, 7:45 AM14161820Sep 16Sep 21Sep 26Oct 1Oct 6Oct 1115.23
Latest
15.23 ftOct 15, 9:40 PM
Highest
19.39 ftSep 20, 11:30 PM
Lowest
14.66 ftSep 16, 7:45 AM
Range
4.73 fthighest less lowest
Change
Rose 0.45 ftsince Sep 15, 10:00 PM
Readings
8,541
The readings these charts were drawn from, as a table
DayHigh ftLow ftAverage ftLast ftReadings
Oct 1515.2314.9715.0515.23261
Oct 1415.1714.9415.0715.07288
Oct 1315.0314.8514.9214.94288
Oct 1215.0314.8714.9515.00288
Oct 1115.0414.9014.9614.98288
Oct 1015.1214.9715.0315.00288
Oct 915.1715.0315.0815.08288
Oct 815.3215.0315.1715.18288
Oct 715.4115.2415.3115.29276
Oct 615.6215.3915.4615.41288
Oct 515.8515.5615.6515.63288
Oct 416.6215.8216.1215.82288
Oct 318.8716.6017.6816.60288
Oct 219.3418.6519.0718.83276
Oct 118.6716.1716.7318.66288
Sep 3016.8414.8415.6916.79288
Sep 2915.0014.8514.9214.95288
Sep 2815.0714.9214.9814.96288
Sep 2715.1314.9615.0315.04288
Sep 2615.2115.0615.1215.08288
Sep 2515.3815.1815.2515.18288
Sep 2415.5815.3215.4315.34288
Sep 2316.0415.5715.7715.57288
Sep 2217.3216.0216.5016.02288
Sep 2119.3917.3318.5117.35288
Sep 2019.3917.1918.7719.36267
Sep 1917.5515.4116.5817.17249
Sep 1817.4015.5416.2115.54288
Sep 1718.1614.7116.8017.41288
Sep 1614.7714.6614.7114.73276
Sep 1514.7814.7414.7614.7424

How it reports

Schedule
every houron the hour's :40
Reports received, 24 hours
24 of 24100% of its schedule
Reports received, 7 days
167 of 16899.4% of its schedule
Longest silence, 7 days
75 minfrom Oct 15, 8:40 PM
Latest report
Oct 15, 8:40 PMlocal time
Time to reach Storm Station
17 min9 in 10 within 17 min

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

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

Ranking Statistics

247 score97.9of 100

Illinois median
95.9the median score of 1,393 stations
Scoring higher
459stations in Illinois
Sharing its score
41ranks 460 to 500
Points deducted
2.11.3 arrival, 0.5 forecast check, 0.2 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
WDGI2rank 473; ahead on longest silence 90 min against 120 min
Next below
ELWI2rank 487; behind on median arrival 16 min 36 s against 16 min 37 s
Sharing its rank
11other stations, equal on every measure

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 3599.434.8 of 35 pointsIllinois median 99.1167 of 168 scheduled reports received in 7 days
  2. Arrivalweight 1086.88.7 of 10 pointsIllinois median 96.3half its reports arrived within 17 min
  3. Continuityweight 10100.010.0 of 10 pointsIllinois median 100.0longest silence 2 h, on a schedule of one report every 60 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 (3 h), none for 72 (72 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 East Branch Du Page River at Bolingbrook

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.