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Live/Water/California/Ca DWR Streamflow Gage at Italian Slough Headwater near Byron

Ca DWR Streamflow Gage at Italian Slough Headwater near Byron

A water gauge in Contra Costa County, California. Its stage was 6.33 ft as of Oct 15, 9:30 PM PDT.

Gauge ISHC1Contra Costa County, CaliforniaEvery gauge in California

Stage now
6.33 ftreported Oct 15, 9:30 PM PDT
24 hour change
Fell 0.02 ftsince Oct 14, 9:30 PM
Rank
433of 4,465 in California, Oct 16
Elevation
-5 ftabove sea level
County
Contra Costa County
Position
37.8403° N, 121.6017° W
Record since
2014

Water level

Ca DWR Streamflow Gage at Italian Slough Headwater near Byron

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 Ca DWR Streamflow Gage at Italian Slough Headwater near Byron: the water from 2.47 to 6.33 feet of stage, the latest 6.33 feet.WATER LEVEL, 24 HOURSFTHIGH 6.33 FT, OCT 15, 9:30 PM · LOW 2.47 FT, OCT 15, 6:15 AM234567Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM6.33
Latest
6.33 ftOct 15, 9:30 PM
Highest
6.33 ftOct 15, 9:30 PM
Lowest
2.47 ftOct 15, 6:15 AM
Range
3.86 fthighest less lowest
Change
Rose 0.30 ftsince Oct 14, 10:15 PM
Readings
94
The readings these charts were drawn from, as a table
TimeStage ft
Oct 15, 9:30 PM6.33
Oct 15, 9:15 PM6.30
Oct 15, 9:00 PM6.26
Oct 15, 8:45 PM6.19
Oct 15, 8:30 PM6.11
Oct 15, 8:15 PM6.03
Oct 15, 8:00 PM5.93
Oct 15, 7:45 PM5.84
Oct 15, 7:30 PM5.73
Oct 15, 7:15 PM5.62
Oct 15, 7:00 PM5.53
Oct 15, 6:45 PM5.43
Oct 15, 6:30 PM5.32
Oct 15, 6:15 PM5.20
Oct 15, 6:00 PM5.06
Oct 15, 5:45 PM4.92
Oct 15, 5:30 PM4.79
Oct 15, 5:15 PM4.67
Oct 15, 5:00 PM4.53
Oct 15, 4:45 PM4.37
Oct 15, 4:30 PM4.23
Oct 15, 4:15 PM4.13
Oct 15, 4:00 PM4.07
Oct 15, 3:45 PM4.07
Oct 15, 3:30 PM4.12
Oct 15, 3:15 PM4.20
Oct 15, 3:00 PM4.28
Oct 15, 2:45 PM4.39
Oct 15, 2:30 PM4.49
Oct 15, 2:15 PM4.58
Oct 15, 2:00 PM4.68
Oct 15, 1:45 PM4.78
Oct 15, 1:30 PM4.88
Oct 15, 1:15 PM4.99
Oct 15, 1:00 PM5.09
Oct 15, 12:45 PM5.18
Oct 15, 12:30 PM5.26
Oct 15, 12:15 PM5.32
Oct 15, 12:00 PM5.34
Oct 15, 11:45 AM5.34
Oct 15, 11:30 AM5.32
Oct 15, 11:15 AM5.29
Oct 15, 11:00 AM5.24
Oct 15, 10:45 AM5.18
Oct 15, 10:30 AM5.12
Oct 15, 10:15 AM5.04
Oct 15, 10:00 AM4.93
Oct 15, 9:45 AM4.82
Oct 15, 9:30 AM4.70
Oct 15, 9:15 AM4.57
Oct 15, 9:00 AM4.43
Oct 15, 8:45 AM4.27
Oct 15, 8:30 AM4.09
Oct 15, 8:15 AM3.86
Oct 15, 8:00 AM3.62
Oct 15, 7:45 AM3.36
Oct 15, 7:30 AM3.12
Oct 15, 7:15 AM2.89
Oct 15, 7:00 AM2.70
Oct 15, 6:45 AM2.57
Oct 15, 6:30 AM2.49
Oct 15, 6:15 AM2.47
Oct 15, 6:00 AM2.48
Oct 15, 5:45 AM2.51
Oct 15, 5:30 AM2.56
Oct 15, 5:15 AM2.61
Oct 15, 5:00 AM2.66
Oct 15, 4:45 AM2.72
Oct 15, 4:30 AM2.75
Oct 15, 4:15 AM2.83
Oct 15, 4:00 AM2.91
Oct 15, 3:45 AM3.01
Oct 15, 3:30 AM3.11
Oct 15, 3:15 AM3.22
Oct 15, 3:00 AM3.32
Oct 15, 2:45 AM3.44
Oct 15, 2:30 AM3.56
Oct 15, 2:15 AM3.69
Oct 15, 2:00 AM3.84
Oct 15, 1:45 AM4.00
Oct 15, 1:30 AM4.15
Oct 15, 1:15 AM4.30
Oct 15, 1:00 AM4.44
Oct 15, 12:45 AM4.59
Oct 15, 12:30 AM4.75
Oct 15, 12:15 AM4.94
Oct 15, 12:00 AM5.10
Oct 14, 11:45 PM5.22
Oct 14, 11:30 PM5.35
Oct 14, 11:15 PM5.47
Oct 14, 11:00 PM5.59
Oct 14, 10:45 PM5.73
Oct 14, 10:30 PM5.89
Oct 14, 10:15 PM6.03
Water level, 7 days at Ca DWR Streamflow Gage at Italian Slough Headwater near Byron: the water from 2.47 to 6.79 feet of stage, the latest 6.33 feet.WATER LEVEL, 7 DAYSFTHIGH 6.79 FT, OCT 11, 7:45 PM · LOW 2.47 FT, OCT 15, 6:15 AM2468Fri 9Sat 10Sun 11Mon 12Tue 13Wed 14Thu 156.33
Latest
6.33 ftOct 15, 9:30 PM
Highest
6.79 ftOct 11, 7:45 PM
Lowest
2.47 ftOct 15, 6:15 AM
Range
4.32 fthighest less lowest
Change
Rose 2.01 ftsince Oct 8, 10:15 PM
Readings
670
The readings these charts were drawn from, as a table
TimeStage ft
Oct 15, 9:30 PM6.33
Oct 15, 8:45 PM6.19
Oct 15, 7:45 PM5.84
Oct 15, 6:45 PM5.43
Oct 15, 5:45 PM4.92
Oct 15, 4:45 PM4.37
Oct 15, 3:45 PM4.07
Oct 15, 2:45 PM4.39
Oct 15, 1:45 PM4.78
Oct 15, 12:45 PM5.18
Oct 15, 11:45 AM5.34
Oct 15, 10:45 AM5.18
Oct 15, 9:45 AM4.82
Oct 15, 8:45 AM4.27
Oct 15, 7:45 AM3.36
Oct 15, 6:45 AM2.57
Oct 15, 5:45 AM2.51
Oct 15, 4:45 AM2.72
Oct 15, 3:45 AM3.01
Oct 15, 2:45 AM3.44
Oct 15, 1:45 AM4.00
Oct 15, 12:45 AM4.59
Oct 14, 11:45 PM5.22
Oct 14, 10:45 PM5.73
Oct 14, 9:45 PM6.27
Oct 14, 8:45 PM6.39
Oct 14, 7:45 PM6.10
Oct 14, 6:45 PM5.67
Oct 14, 5:45 PM5.22
Oct 14, 4:45 PM4.67
Oct 14, 3:45 PM4.08
Oct 14, 2:45 PM3.77
Oct 14, 1:45 PM4.25
Oct 14, 12:45 PM4.75
Oct 14, 11:45 AM5.21
Oct 14, 10:45 AM5.43
Oct 14, 9:45 AM5.26
Oct 14, 8:45 AM4.83
Oct 14, 7:45 AM4.22
Oct 14, 6:45 AM3.27
Oct 14, 5:45 AM2.59
Oct 14, 4:45 AM2.65
Oct 14, 3:45 AM2.86
Oct 14, 2:45 AM3.25
Oct 14, 1:45 AM3.72
Oct 14, 12:45 AM4.22
Oct 13, 11:45 PM4.87
Oct 13, 10:45 PM5.46
Oct 13, 9:45 PM6.01
Oct 13, 8:45 PM6.38
Oct 13, 7:45 PM6.23
Oct 13, 6:45 PM5.85
Oct 13, 5:45 PM5.40
Oct 13, 4:45 PM4.83
Oct 13, 3:45 PM4.14
Oct 13, 2:45 PM3.54
Oct 13, 1:45 PM3.81
Oct 13, 12:45 PM4.41
Oct 13, 11:45 AM4.98
Oct 13, 10:45 AM5.50
Oct 13, 9:45 AM5.64
Oct 13, 8:45 AM5.43
Oct 13, 7:45 AM5.06
Oct 13, 6:45 AM4.39
Oct 13, 5:45 AM3.47
Oct 13, 4:45 AM2.83
Oct 13, 3:45 AM3.04
Oct 13, 2:45 AM3.46
Oct 13, 1:45 AM3.90
Oct 13, 12:45 AM4.34
Oct 12, 11:45 PM4.85
Oct 12, 10:45 PM5.38
Oct 12, 9:45 PM5.90
Oct 12, 8:45 PM6.45
Oct 12, 7:45 PM6.49
Oct 12, 6:45 PM6.16
Oct 12, 5:45 PM5.72
Oct 12, 4:45 PM5.15
Oct 12, 3:45 PM4.57
Oct 12, 2:45 PM3.89
Oct 12, 1:45 PM3.93
Oct 12, 12:45 PM4.33
Oct 12, 11:45 AM4.84
Oct 12, 10:45 AM5.32
Oct 12, 9:45 AM5.51
Oct 12, 8:45 AM5.61
Oct 12, 7:45 AM5.63
Oct 12, 6:45 AM5.24
Oct 12, 5:45 AM4.72
Oct 12, 4:45 AM3.92
Oct 12, 3:45 AM3.32
Oct 12, 2:45 AM3.57
Oct 12, 1:45 AM3.99
Oct 12, 12:45 AM4.44
Oct 11, 11:45 PM4.94
Oct 11, 10:45 PM5.47
Oct 11, 9:45 PM5.96
Oct 11, 8:45 PM6.59
Oct 11, 7:45 PM6.79
Oct 11, 6:45 PM6.55
Oct 11, 5:45 PM6.08
Oct 11, 4:45 PM5.59
Oct 11, 3:45 PM4.94
Oct 11, 2:45 PM4.24
Oct 11, 1:45 PM3.86
Oct 11, 12:45 PM4.16
Oct 11, 11:45 AM4.62
Oct 11, 10:45 AM5.13
Oct 11, 9:45 AM5.68
Oct 11, 8:45 AM6.12
Oct 11, 7:45 AM5.74
Oct 11, 6:45 AM5.41
Oct 11, 5:45 AM5.08
Oct 11, 4:45 AM4.74
Oct 11, 3:45 AM4.02
Oct 11, 2:45 AM3.40
Oct 11, 1:45 AM3.47
Oct 11, 12:45 AM4.03
Oct 10, 11:45 PM4.57
Oct 10, 10:45 PM5.10
Oct 10, 9:45 PM5.59
Oct 10, 8:45 PM6.15
Oct 10, 7:45 PM6.66
Oct 10, 6:45 PM6.62
Oct 10, 5:45 PM6.16
Oct 10, 4:45 PM5.66
Oct 10, 3:45 PM5.02
Oct 10, 2:45 PM4.38
Oct 10, 1:45 PM3.72
Oct 10, 12:45 PM3.83
Oct 10, 11:45 AM4.23
Oct 10, 10:45 AM4.79
Oct 10, 9:45 AM5.20
Oct 10, 8:45 AM5.76
Oct 10, 7:45 AM6.14
Oct 10, 6:45 AM5.87
Oct 10, 5:45 AM5.59
Oct 10, 4:45 AM5.29
Oct 10, 3:45 AM4.97
Oct 10, 2:45 AM4.25
Oct 10, 1:45 AM3.71
Oct 10, 12:45 AM3.75
Oct 9, 11:45 PM4.28
Oct 9, 10:45 PM4.83
Oct 9, 9:45 PM5.39
Oct 9, 8:45 PM5.90
Oct 9, 7:45 PM6.44
Oct 9, 6:45 PM6.44
Oct 9, 5:45 PM6.06
Oct 9, 4:45 PM5.60
Oct 9, 3:45 PM5.01
Oct 9, 2:45 PM4.35
Oct 9, 1:45 PM3.69
Oct 9, 12:45 PM3.38
Oct 9, 11:45 AM3.59
Oct 9, 10:45 AM3.97
Oct 9, 9:45 AM4.48
Oct 9, 8:45 AM4.97
Oct 9, 7:45 AM5.63
Oct 9, 6:45 AM6.09
Oct 9, 5:45 AM5.80
Oct 9, 4:45 AM5.13
Oct 9, 3:45 AM4.43
Oct 9, 2:45 AM3.99
Oct 9, 1:45 AM3.39
Oct 9, 12:45 AM3.35
Oct 8, 11:45 PM3.66
Oct 8, 10:45 PM4.08
Water level, 30 days at Ca DWR Streamflow Gage at Italian Slough Headwater near Byron: the water from 1.87 to 6.79 feet of stage, the latest 6.33 feet.WATER LEVEL, 30 DAYSFTHIGH 6.79 FT, OCT 11, 7:45 PM · LOW 1.87 FT, SEP 21, 11:00 AM02468Sep 16Sep 21Sep 26Oct 1Oct 6Oct 116.33
Latest
6.33 ftOct 15, 9:30 PM
Highest
6.79 ftOct 11, 7:45 PM
Lowest
1.87 ftSep 21, 11:00 AM
Range
4.92 fthighest less lowest
Change
Rose 0.08 ftsince Sep 15, 10:15 PM
Readings
2,853
The readings these charts were drawn from, as a table
DayHigh ftLow ftAverage ftLast ftReadings
Oct 156.332.474.386.3387
Oct 146.422.554.565.2296
Oct 136.382.834.714.8796
Oct 126.543.324.964.8596
Oct 116.793.405.104.9496
Oct 106.703.545.124.5796
Oct 96.583.234.834.2896
Oct 86.062.964.543.6696
Oct 76.282.484.443.2096
Oct 66.382.234.353.8196
Oct 56.442.464.304.8696
Oct 46.582.264.275.6796
Oct 36.502.724.446.4596
Oct 26.602.834.386.5784
Oct 16.572.554.386.1796
Sep 306.402.534.155.4996
Sep 296.282.614.134.6896
Sep 286.072.684.084.2096
Sep 275.902.233.963.8396
Sep 265.682.493.963.4796
Sep 255.791.893.953.4296
Sep 245.532.143.903.1795
Sep 236.162.354.193.2096
Sep 226.372.454.394.0896
Sep 216.131.874.275.0396
Sep 206.462.334.375.3796
Sep 196.242.144.226.1884
Sep 186.232.064.186.2396
Sep 176.202.544.216.1896
Sep 166.412.814.296.0896
Sep 156.255.666.035.667

How it reports

Rank
433of 4,465 in California, Oct 16
Schedule
every 3 hourson the hour's :30
Reports received, 24 hours
8 of 8100% of its schedule
Reports received, 7 days
56 of 56100% of its schedule
Longest silence, 7 days
3 hoursfrom Oct 8, 9:30 PM
Latest report
Oct 15, 6:30 PMlocal time
Time to reach Storm Station
25 min9 in 10 within 25 min

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

Its schedule is one report every 3 hours, 8 in 24 hours. Two reports in the same 3 hours count as one received.

Ranking Statistics

247 score95.9of 100

California median
91.6the median score of 4,465 stations
Scoring higher
432stations in California
Sharing its score
8ranks 433 to 440
Points deducted
4.12.9 accuracy, 0.8 forecast check, 0.4 arrival
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; California median 85.6, 100.0, 92.4
Next above
MAErank 432; ahead on 247 score 96.0 against 95.9
Next below
CA-OR-105rank 434; behind on reports due 56 against 7, the longer record first

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 35100.035.0 of 35 pointsCalifornia median 98.556 of 56 scheduled reports received in 7 days
  2. Arrivalweight 1095.89.6 of 10 pointsCalifornia median 81.2half its reports arrived within 25 min
  3. Continuityweight 10100.010.0 of 10 pointsCalifornia median 100.0longest silence 3 h, on a schedule of one report every 3 h
  4. Accuracyweight 20-17.1 of 20 points, at the medianCalifornia median 85.6-
  5. Instrument checksweight 15-15.0 of 15 points, at the medianCalifornia median 100.0-
  6. Forecast checkweight 10-9.2 of 10 points, at the medianCalifornia median 92.4-

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 18 min, none at 3 h
Continuity
Full marks for a longest silence of 3 reports or less (9 h), none for 72 (216 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 Ca DWR Streamflow Gage at Italian Slough Headwater near Byron

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.