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Live/Water/Illinois/Rock Falls - Sinnissippi Dam

Rock Falls - Sinnissippi Dam

A water gauge in Whiteside County, Illinois. Its stage was 6.73 ft as of Oct 15, 10:45 PM CDT.

Gauge SSDI2Whiteside County, IllinoisEvery gauge in Illinois

Stage now
6.73 ftreported Oct 15, 10:45 PM CDT
24 hour change
Rose 0.10 ftsince Oct 14, 10:45 PM
Rank
874of 1,393 in Illinois, Oct 16
Elevation
646 ftabove sea level
County
Whiteside County
Position
41.7875° N, 89.6764° W
Record since
2017

Water level

Rock Falls - Sinnissippi Dam

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 Rock Falls - Sinnissippi Dam: the water from 6.58 to 6.73 feet of stage, the latest 6.73 feet.WATER LEVEL, 24 HOURSFTHIGH 6.73 FT, OCT 15, 10:30 PM · LOW 6.58 FT, OCT 15, 5:15 AM6.556.606.656.706.753 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 166.73
Latest
6.73 ftOct 15, 10:45 PM
Highest
6.73 ftOct 15, 10:30 PM
Lowest
6.58 ftOct 15, 5:15 AM
Range
0.15 fthighest less lowest
Change
Rose 0.11 ftsince Oct 15, 12:30 AM
Readings
90
The readings these charts were drawn from, as a table
TimeStage ft
Oct 15, 10:45 PM6.73
Oct 15, 10:30 PM6.73
Oct 15, 10:15 PM6.72
Oct 15, 10:00 PM6.71
Oct 15, 9:45 PM6.71
Oct 15, 9:30 PM6.72
Oct 15, 9:15 PM6.71
Oct 15, 9:00 PM6.69
Oct 15, 8:45 PM6.69
Oct 15, 8:30 PM6.67
Oct 15, 8:15 PM6.69
Oct 15, 8:00 PM6.69
Oct 15, 7:45 PM6.71
Oct 15, 7:30 PM6.71
Oct 15, 7:15 PM6.71
Oct 15, 7:00 PM6.72
Oct 15, 6:45 PM6.72
Oct 15, 6:30 PM6.72
Oct 15, 6:15 PM6.71
Oct 15, 6:00 PM6.72
Oct 15, 5:45 PM6.71
Oct 15, 5:30 PM6.71
Oct 15, 5:15 PM6.72
Oct 15, 5:00 PM6.72
Oct 15, 4:45 PM6.71
Oct 15, 4:30 PM6.71
Oct 15, 4:15 PM6.70
Oct 15, 4:00 PM6.71
Oct 15, 3:45 PM6.70
Oct 15, 3:30 PM6.69
Oct 15, 3:15 PM6.70
Oct 15, 3:00 PM6.68
Oct 15, 2:45 PM6.67
Oct 15, 2:30 PM6.67
Oct 15, 2:15 PM6.66
Oct 15, 2:00 PM6.66
Oct 15, 1:45 PM6.65
Oct 15, 1:30 PM6.65
Oct 15, 1:15 PM6.64
Oct 15, 1:00 PM6.63
Oct 15, 12:45 PM6.64
Oct 15, 12:30 PM6.62
Oct 15, 12:15 PM6.62
Oct 15, 12:00 PM6.61
Oct 15, 11:45 AM6.61
Oct 15, 11:30 AM6.59
Oct 15, 11:15 AM6.58
Oct 15, 11:00 AM6.58
Oct 15, 10:45 AM6.58
Oct 15, 10:30 AM6.58
Oct 15, 10:15 AM6.58
Oct 15, 10:00 AM6.59
Oct 15, 9:45 AM6.59
Oct 15, 9:30 AM6.58
Oct 15, 9:15 AM6.58
Oct 15, 9:00 AM6.58
Oct 15, 8:45 AM6.59
Oct 15, 8:30 AM6.59
Oct 15, 8:15 AM6.58
Oct 15, 8:00 AM6.59
Oct 15, 7:45 AM6.59
Oct 15, 7:30 AM6.59
Oct 15, 7:15 AM6.59
Oct 15, 7:00 AM6.59
Oct 15, 6:45 AM6.59
Oct 15, 6:30 AM6.59
Oct 15, 6:15 AM6.58
Oct 15, 6:00 AM6.59
Oct 15, 5:45 AM6.59
Oct 15, 5:30 AM6.59
Oct 15, 5:15 AM6.58
Oct 15, 5:00 AM6.59
Oct 15, 4:45 AM6.60
Oct 15, 4:30 AM6.61
Oct 15, 4:15 AM6.59
Oct 15, 4:00 AM6.60
Oct 15, 3:45 AM6.59
Oct 15, 3:30 AM6.59
Oct 15, 3:15 AM6.60
Oct 15, 3:00 AM6.59
Oct 15, 2:45 AM6.61
Oct 15, 2:30 AM6.61
Oct 15, 2:15 AM6.61
Oct 15, 2:00 AM6.59
Oct 15, 1:45 AM6.61
Oct 15, 1:30 AM6.61
Oct 15, 1:15 AM6.61
Oct 15, 1:00 AM6.63
Oct 15, 12:45 AM6.62
Oct 15, 12:30 AM6.62
Water level, 7 days at Rock Falls - Sinnissippi Dam: the water from 6.58 to 6.92 feet of stage, the latest 6.73 feet.WATER LEVEL, 7 DAYSFTHIGH 6.92 FT, OCT 9, 3:00 PM · LOW 6.58 FT, OCT 15, 5:15 AM6.506.606.706.806.907.00Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Fri 166.73
Latest
6.73 ftOct 15, 10:45 PM
Highest
6.92 ftOct 9, 3:00 PM
Lowest
6.58 ftOct 15, 5:15 AM
Range
0.34 fthighest less lowest
Change
Rose 0.04 ftsince Oct 9, 12:30 AM
Readings
666
The readings these charts were drawn from, as a table
TimeStage ft
Oct 15, 10:45 PM6.73
Oct 15, 9:45 PM6.71
Oct 15, 8:45 PM6.69
Oct 15, 7:45 PM6.71
Oct 15, 6:45 PM6.72
Oct 15, 5:45 PM6.71
Oct 15, 4:45 PM6.71
Oct 15, 3:45 PM6.70
Oct 15, 2:45 PM6.67
Oct 15, 1:45 PM6.65
Oct 15, 12:45 PM6.64
Oct 15, 11:45 AM6.61
Oct 15, 10:45 AM6.58
Oct 15, 9:45 AM6.59
Oct 15, 8:45 AM6.59
Oct 15, 7:45 AM6.59
Oct 15, 6:45 AM6.59
Oct 15, 5:45 AM6.59
Oct 15, 4:45 AM6.60
Oct 15, 3:45 AM6.59
Oct 15, 2:45 AM6.61
Oct 15, 1:45 AM6.61
Oct 15, 12:45 AM6.62
Oct 14, 11:45 PM6.63
Oct 14, 10:45 PM6.63
Oct 14, 9:45 PM6.65
Oct 14, 8:45 PM6.67
Oct 14, 7:45 PM6.67
Oct 14, 6:45 PM6.70
Oct 14, 5:45 PM6.71
Oct 14, 4:45 PM6.75
Oct 14, 3:45 PM6.76
Oct 14, 2:45 PM6.83
Oct 14, 1:45 PM6.82
Oct 14, 12:45 PM6.78
Oct 14, 11:45 AM6.83
Oct 14, 10:45 AM6.80
Oct 14, 9:45 AM6.79
Oct 14, 8:45 AM6.75
Oct 14, 7:45 AM6.68
Oct 14, 6:45 AM6.67
Oct 14, 5:45 AM6.68
Oct 14, 4:45 AM6.70
Oct 14, 3:45 AM6.70
Oct 14, 2:45 AM6.71
Oct 14, 1:45 AM6.73
Oct 14, 12:45 AM6.73
Oct 13, 11:45 PM6.74
Oct 13, 10:45 PM6.74
Oct 13, 9:45 PM6.75
Oct 13, 8:45 PM6.77
Oct 13, 7:45 PM6.79
Oct 13, 6:45 PM6.80
Oct 13, 5:45 PM6.82
Oct 13, 4:45 PM6.83
Oct 13, 3:45 PM6.84
Oct 13, 2:45 PM6.87
Oct 13, 1:45 PM6.90
Oct 13, 12:45 PM6.86
Oct 13, 11:45 AM6.79
Oct 13, 10:45 AM6.74
Oct 13, 9:45 AM6.78
Oct 13, 8:45 AM6.77
Oct 13, 7:45 AM6.70
Oct 13, 6:45 AM6.71
Oct 13, 5:45 AM6.72
Oct 13, 4:45 AM6.72
Oct 13, 3:45 AM6.73
Oct 13, 2:45 AM6.73
Oct 13, 1:45 AM6.73
Oct 13, 12:45 AM6.73
Oct 12, 11:45 PM6.74
Oct 12, 10:45 PM6.75
Oct 12, 9:45 PM6.75
Oct 12, 8:45 PM6.76
Oct 12, 7:45 PM6.76
Oct 12, 6:45 PM6.76
Oct 12, 5:45 PM6.74
Oct 12, 4:45 PM6.74
Oct 12, 3:45 PM6.72
Oct 12, 2:45 PM6.71
Oct 12, 1:45 PM6.67
Oct 12, 12:45 PM6.65
Oct 12, 11:45 AM6.66
Oct 12, 10:45 AM6.70
Oct 12, 9:45 AM6.73
Oct 12, 8:45 AM6.74
Oct 12, 7:45 AM6.74
Oct 12, 6:45 AM6.74
Oct 12, 5:45 AM6.75
Oct 12, 4:45 AM6.75
Oct 12, 3:45 AM6.75
Oct 12, 2:45 AM6.75
Oct 12, 1:45 AM6.76
Oct 12, 12:45 AM6.76
Oct 11, 11:45 PM6.76
Oct 11, 10:45 PM6.76
Oct 11, 9:45 PM6.76
Oct 11, 8:45 PM6.77
Oct 11, 7:45 PM6.77
Oct 11, 6:45 PM6.77
Oct 11, 5:45 PM6.78
Oct 11, 4:45 PM6.77
Oct 11, 3:45 PM6.77
Oct 11, 2:45 PM6.77
Oct 11, 1:45 PM6.76
Oct 11, 12:45 PM6.77
Oct 11, 11:45 AM6.76
Oct 11, 10:45 AM6.76
Oct 11, 9:45 AM6.77
Oct 11, 8:45 AM6.76
Oct 11, 7:45 AM6.77
Oct 11, 6:45 AM6.77
Oct 11, 5:45 AM6.77
Oct 11, 4:45 AM6.78
Oct 11, 3:45 AM6.77
Oct 11, 2:45 AM6.78
Oct 11, 1:45 AM6.78
Oct 11, 12:45 AM6.78
Oct 10, 11:45 PM6.79
Oct 10, 10:45 PM6.79
Oct 10, 9:45 PM6.80
Oct 10, 8:45 PM6.80
Oct 10, 7:45 PM6.80
Oct 10, 6:45 PM6.80
Oct 10, 5:45 PM6.81
Oct 10, 4:45 PM6.82
Oct 10, 3:45 PM6.82
Oct 10, 2:45 PM6.83
Oct 10, 1:45 PM6.82
Oct 10, 12:45 PM6.82
Oct 10, 11:45 AM6.82
Oct 10, 10:45 AM6.82
Oct 10, 9:45 AM6.83
Oct 10, 8:45 AM6.83
Oct 10, 7:45 AM6.84
Oct 10, 6:45 AM6.84
Oct 10, 5:45 AM6.85
Oct 10, 4:45 AM6.85
Oct 10, 3:45 AM6.85
Oct 10, 2:45 AM6.85
Oct 10, 1:45 AM6.86
Oct 10, 12:45 AM6.86
Oct 9, 11:45 PM6.87
Oct 9, 10:45 PM6.87
Oct 9, 9:45 PM6.87
Oct 9, 8:45 PM6.87
Oct 9, 7:45 PM6.87
Oct 9, 6:45 PM6.87
Oct 9, 5:45 PM6.87
Oct 9, 4:45 PM6.89
Oct 9, 3:45 PM6.89
Oct 9, 2:45 PM6.90
Oct 9, 1:45 PM6.87
Oct 9, 12:45 PM6.84
Oct 9, 11:45 AM6.78
Oct 9, 10:45 AM6.73
Oct 9, 9:45 AM6.69
Oct 9, 8:45 AM6.76
Oct 9, 7:45 AM6.64
Oct 9, 6:45 AM6.64
Oct 9, 5:45 AM6.65
Oct 9, 4:45 AM6.66
Oct 9, 3:45 AM6.67
Oct 9, 2:45 AM6.67
Oct 9, 1:45 AM6.68
Oct 9, 12:45 AM6.69
Water level, 30 days at Rock Falls - Sinnissippi Dam: the water from 6.21 to 7.31 feet of stage, the latest 6.73 feet.WATER LEVEL, 30 DAYSFTHIGH 7.31 FT, SEP 20, 8:45 AM · LOW 6.21 FT, SEP 24, 9:45 AM6.06.57.07.5Sep 16Sep 21Sep 26Oct 1Oct 6Oct 116.73
Latest
6.73 ftOct 15, 10:45 PM
Highest
7.31 ftSep 20, 8:45 AM
Lowest
6.21 ftSep 24, 9:45 AM
Range
1.10 fthighest less lowest
Change
Rose 0.33 ftsince Sep 16, 12:30 AM
Readings
2,832
The readings these charts were drawn from, as a table
DayHigh ftLow ftAverage ftLast ftReadings
Oct 156.736.586.646.7392
Oct 146.846.636.736.6396
Oct 136.916.696.776.7496
Oct 126.766.636.736.7496
Oct 116.796.766.776.7696
Oct 106.876.786.836.7996
Oct 96.926.636.776.8796
Oct 86.916.706.806.7094
Oct 76.996.916.956.9196
Oct 66.986.486.726.9796
Oct 56.756.556.656.6096
Oct 46.856.656.736.6694
Oct 36.876.756.826.8473
Oct 27.016.726.846.7496
Oct 16.886.686.786.8796
Sep 306.696.646.676.6894
Sep 296.656.466.566.6494
Sep 286.696.406.556.5596
Sep 276.576.506.536.5095
Sep 266.616.576.596.5796
Sep 256.626.546.586.6294
Sep 246.576.216.376.5692
Sep 236.576.266.446.2696
Sep 226.586.436.496.5794
Sep 216.606.346.486.4595
Sep 207.316.316.736.3596
Sep 196.946.586.726.9496
Sep 186.676.596.636.6196
Sep 176.616.446.536.5995
Sep 166.466.406.436.4594

How it reports

Rank
874of 1,393 in Illinois, Oct 16
Schedule
every houron the hour's :00 and :45
Reports received, 24 hours
23 of 2495.8% of its schedule
Reports received, 7 days
166 of 16898.8% of its schedule
Longest silence, 7 days
2 h 15 minfrom Oct 15, 10:45 AM
Latest report
Oct 15, 10:00 PMlocal time
Time to reach Storm Station
37 min9 in 10 within 52 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 score93.6of 100

Illinois median
95.9the median score of 1,393 stations
Scoring higher
873stations in Illinois
Sharing its score
2ranks 874 to 875
Points deducted
6.45.4 arrival, 0.5 forecast check, 0.4 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
LRYI2rank 873; ahead on 247 score 93.7 against 93.6
Next below
SPFI2rank 875; behind on reports received 98.8% against 97.6%

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 3598.834.6 of 35 pointsIllinois median 99.1166 of 168 scheduled reports received in 7 days
  2. Arrivalweight 1046.04.6 of 10 pointsIllinois median 96.3half its reports arrived within 37 min
  3. Continuityweight 10100.010.0 of 10 pointsIllinois median 100.0longest silence 2.3 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 Rock Falls - Sinnissippi Dam

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.