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Live/Water/California/USGS Stream Gage at Cull C Ab Cull C Res near Castro Valley

USGS Stream Gage at Cull C Ab Cull C Res near Castro Valley

A gauge on the USGS Stream in Alameda County, California. Its stage was 1.55 ft as of Oct 15, 7:50 PM PDT.

Gauge CULC1Alameda County, CaliforniaEvery gauge in California

Stage now
1.55 ftreported Oct 15, 7:50 PM PDT
24 hour change
No changesince Oct 14, 7:50 PM
Rank
559of 4,465 in California, Oct 16
Elevation
499 ftabove sea level
County
Alameda County
Position
37.7178° N, 122.0533° W
Record since
2015

Water level

USGS Stream Gage at Cull C Ab Cull C Res near Castro Valley

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 USGS Stream Gage at Cull C Ab Cull C Res near Castro Valley: the water from 1.55 to 1.55 feet of stage, the latest 1.55 feet.WATER LEVEL, 24 HOURSFTHIGH 1.55 FT, OCT 14, 8:40 PM · LOW 1.55 FT, OCT 14, 8:40 PM1.521.541.561.581.609 PMOct 153 AM6 AM9 AM12 PM3 PM6 PM1.55
Latest
1.55 ftOct 15, 7:50 PM
Highest
1.55 ftOct 14, 8:40 PM
Lowest
1.55 ftOct 14, 8:40 PM
Range
0.00 fthighest less lowest
Change
No changesince Oct 14, 8:40 PM
Readings
279
The readings these charts were drawn from, as a table
TimeStage ft
Oct 15, 7:50 PM1.55
Oct 15, 7:45 PM1.55
Oct 15, 7:40 PM1.55
Oct 15, 7:35 PM1.55
Oct 15, 7:30 PM1.55
Oct 15, 7:25 PM1.55
Oct 15, 7:20 PM1.55
Oct 15, 7:15 PM1.55
Oct 15, 7:10 PM1.55
Oct 15, 7:05 PM1.55
Oct 15, 7:00 PM1.55
Oct 15, 6:55 PM1.55
Oct 15, 6:50 PM1.55
Oct 15, 6:45 PM1.55
Oct 15, 6:40 PM1.55
Oct 15, 6:35 PM1.55
Oct 15, 6:30 PM1.55
Oct 15, 6:25 PM1.55
Oct 15, 6:20 PM1.55
Oct 15, 6:15 PM1.55
Oct 15, 6:10 PM1.55
Oct 15, 6:05 PM1.55
Oct 15, 6:00 PM1.55
Oct 15, 5:55 PM1.55
Oct 15, 5:50 PM1.55
Oct 15, 5:45 PM1.55
Oct 15, 5:40 PM1.55
Oct 15, 5:35 PM1.55
Oct 15, 5:30 PM1.55
Oct 15, 5:25 PM1.55
Oct 15, 5:20 PM1.55
Oct 15, 5:15 PM1.55
Oct 15, 5:10 PM1.55
Oct 15, 5:05 PM1.55
Oct 15, 5:00 PM1.55
Oct 15, 4:55 PM1.55
Oct 15, 4:50 PM1.55
Oct 15, 4:45 PM1.55
Oct 15, 4:40 PM1.55
Oct 15, 4:35 PM1.55
Oct 15, 4:30 PM1.55
Oct 15, 4:25 PM1.55
Oct 15, 4:20 PM1.55
Oct 15, 4:15 PM1.55
Oct 15, 4:10 PM1.55
Oct 15, 4:05 PM1.55
Oct 15, 4:00 PM1.55
Oct 15, 3:55 PM1.55
Oct 15, 3:50 PM1.55
Oct 15, 3:45 PM1.55
Oct 15, 3:40 PM1.55
Oct 15, 3:35 PM1.55
Oct 15, 3:30 PM1.55
Oct 15, 3:25 PM1.55
Oct 15, 3:20 PM1.55
Oct 15, 3:15 PM1.55
Oct 15, 3:10 PM1.55
Oct 15, 3:05 PM1.55
Oct 15, 3:00 PM1.55
Oct 15, 2:55 PM1.55
Oct 15, 2:50 PM1.55
Oct 15, 2:45 PM1.55
Oct 15, 2:40 PM1.55
Oct 15, 2:35 PM1.55
Oct 15, 2:30 PM1.55
Oct 15, 2:25 PM1.55
Oct 15, 2:20 PM1.55
Oct 15, 2:15 PM1.55
Oct 15, 2:10 PM1.55
Oct 15, 2:05 PM1.55
Oct 15, 2:00 PM1.55
Oct 15, 1:55 PM1.55
Oct 15, 1:50 PM1.55
Oct 15, 1:45 PM1.55
Oct 15, 1:40 PM1.55
Oct 15, 1:35 PM1.55
Oct 15, 1:30 PM1.55
Oct 15, 1:25 PM1.55
Oct 15, 1:20 PM1.55
Oct 15, 1:15 PM1.55
Oct 15, 1:10 PM1.55
Oct 15, 1:05 PM1.55
Oct 15, 1:00 PM1.55
Oct 15, 12:55 PM1.55
Oct 15, 12:50 PM1.55
Oct 15, 12:45 PM1.55
Oct 15, 12:40 PM1.55
Oct 15, 12:35 PM1.55
Oct 15, 12:30 PM1.55
Oct 15, 12:25 PM1.55
Oct 15, 12:20 PM1.55
Oct 15, 12:15 PM1.55
Oct 15, 12:10 PM1.55
Oct 15, 12:05 PM1.55
Oct 15, 12:00 PM1.55
Oct 15, 11:55 AM1.55
Oct 15, 11:50 AM1.55
Oct 15, 11:45 AM1.55
Oct 15, 11:40 AM1.55
Oct 15, 11:35 AM1.55
Oct 15, 11:30 AM1.55
Oct 15, 11:25 AM1.55
Oct 15, 11:20 AM1.55
Oct 15, 11:15 AM1.55
Oct 15, 11:10 AM1.55
Oct 15, 11:05 AM1.55
Oct 15, 11:00 AM1.55
Oct 15, 10:55 AM1.55
Oct 15, 10:50 AM1.55
Oct 15, 10:45 AM1.55
Oct 15, 10:40 AM1.55
Oct 15, 10:35 AM1.55
Oct 15, 10:30 AM1.55
Oct 15, 10:25 AM1.55
Oct 15, 10:20 AM1.55
Oct 15, 10:15 AM1.55
Oct 15, 10:10 AM1.55
Oct 15, 10:05 AM1.55
Oct 15, 10:00 AM1.55
Oct 15, 9:55 AM1.55
Oct 15, 9:50 AM1.55
Oct 15, 9:45 AM1.55
Oct 15, 9:40 AM1.55
Oct 15, 9:35 AM1.55
Oct 15, 9:30 AM1.55
Oct 15, 9:25 AM1.55
Oct 15, 9:20 AM1.55
Oct 15, 9:15 AM1.55
Oct 15, 9:10 AM1.55
Oct 15, 9:05 AM1.55
Oct 15, 9:00 AM1.55
Oct 15, 8:55 AM1.55
Oct 15, 8:50 AM1.55
Oct 15, 8:45 AM1.55
Oct 15, 8:40 AM1.55
Oct 15, 8:35 AM1.55
Oct 15, 8:30 AM1.55
Oct 15, 8:25 AM1.55
Oct 15, 8:20 AM1.55
Oct 15, 8:15 AM1.55
Oct 15, 8:10 AM1.55
Oct 15, 8:05 AM1.55
Oct 15, 8:00 AM1.55
Oct 15, 7:55 AM1.55
Oct 15, 7:50 AM1.55
Oct 15, 7:45 AM1.55
Oct 15, 7:40 AM1.55
Oct 15, 7:35 AM1.55
Oct 15, 7:30 AM1.55
Oct 15, 7:25 AM1.55
Oct 15, 7:20 AM1.55
Oct 15, 7:15 AM1.55
Oct 15, 7:10 AM1.55
Oct 15, 7:05 AM1.55
Oct 15, 7:00 AM1.55
Oct 15, 6:55 AM1.55
Oct 15, 6:50 AM1.55
Oct 15, 6:45 AM1.55
Oct 15, 6:40 AM1.55
Oct 15, 6:35 AM1.55
Oct 15, 6:30 AM1.55
Oct 15, 6:25 AM1.55
Oct 15, 6:20 AM1.55
Oct 15, 6:15 AM1.55
Oct 15, 6:10 AM1.55
Oct 15, 6:05 AM1.55
Oct 15, 6:00 AM1.55
Oct 15, 5:55 AM1.55
Oct 15, 5:50 AM1.55
Oct 15, 5:45 AM1.55
Oct 15, 5:40 AM1.55
Oct 15, 5:35 AM1.55
Oct 15, 5:30 AM1.55
Oct 15, 5:25 AM1.55
Oct 15, 5:20 AM1.55
Oct 15, 5:15 AM1.55
Oct 15, 5:10 AM1.55
Oct 15, 5:05 AM1.55
Oct 15, 5:00 AM1.55
Oct 15, 4:55 AM1.55
Oct 15, 4:50 AM1.55
Oct 15, 4:45 AM1.55
Oct 15, 4:40 AM1.55
Oct 15, 4:35 AM1.55
Oct 15, 4:30 AM1.55
Oct 15, 4:25 AM1.55
Oct 15, 4:20 AM1.55
Oct 15, 4:15 AM1.55
Oct 15, 4:10 AM1.55
Oct 15, 4:05 AM1.55
Oct 15, 4:00 AM1.55
Oct 15, 3:55 AM1.55
Oct 15, 3:50 AM1.55
Oct 15, 3:45 AM1.55
Oct 15, 3:40 AM1.55
Oct 15, 3:35 AM1.55
Oct 15, 3:30 AM1.55
Oct 15, 3:25 AM1.55
Oct 15, 3:20 AM1.55
Oct 15, 3:15 AM1.55
Oct 15, 3:10 AM1.55
Oct 15, 3:05 AM1.55
Oct 15, 3:00 AM1.55
Oct 15, 2:55 AM1.55
Oct 15, 2:50 AM1.55
Oct 15, 2:45 AM1.55
Oct 15, 2:40 AM1.55
Oct 15, 2:35 AM1.55
Oct 15, 2:30 AM1.55
Oct 15, 2:25 AM1.55
Oct 15, 2:20 AM1.55
Oct 15, 2:15 AM1.55
Oct 15, 2:10 AM1.55
Oct 15, 2:05 AM1.55
Oct 15, 2:00 AM1.55
Oct 15, 1:55 AM1.55
Oct 15, 1:50 AM1.55
Oct 15, 1:45 AM1.55
Oct 15, 1:40 AM1.55
Oct 15, 1:35 AM1.55
Oct 15, 1:30 AM1.55
Oct 15, 1:25 AM1.55
Oct 15, 1:20 AM1.55
Oct 15, 1:15 AM1.55
Oct 15, 1:10 AM1.55
Oct 15, 1:05 AM1.55
Oct 15, 1:00 AM1.55
Oct 15, 12:55 AM1.55
Oct 15, 12:50 AM1.55
Oct 15, 12:45 AM1.55
Oct 15, 12:40 AM1.55
Oct 15, 12:35 AM1.55
Oct 15, 12:30 AM1.55
Oct 15, 12:25 AM1.55
Oct 15, 12:20 AM1.55
Oct 15, 12:15 AM1.55
Oct 15, 12:10 AM1.55
Oct 15, 12:05 AM1.55
Oct 15, 12:00 AM1.55
Oct 14, 11:55 PM1.55
Oct 14, 11:50 PM1.55
Oct 14, 11:45 PM1.55
Oct 14, 11:40 PM1.55
Oct 14, 11:35 PM1.55
Oct 14, 11:30 PM1.55
Oct 14, 11:25 PM1.55
Oct 14, 11:20 PM1.55
Oct 14, 11:15 PM1.55
Oct 14, 11:10 PM1.55
Oct 14, 11:05 PM1.55
Oct 14, 11:00 PM1.55
Oct 14, 10:55 PM1.55
Oct 14, 10:50 PM1.55
Oct 14, 10:45 PM1.55
Oct 14, 10:40 PM1.55
Oct 14, 10:35 PM1.55
Oct 14, 10:30 PM1.55
Oct 14, 10:25 PM1.55
Oct 14, 10:20 PM1.55
Oct 14, 10:15 PM1.55
Oct 14, 10:10 PM1.55
Oct 14, 10:05 PM1.55
Oct 14, 10:00 PM1.55
Oct 14, 9:55 PM1.55
Oct 14, 9:50 PM1.55
Oct 14, 9:45 PM1.55
Oct 14, 9:40 PM1.55
Oct 14, 9:35 PM1.55
Oct 14, 9:30 PM1.55
Oct 14, 9:25 PM1.55
Oct 14, 9:20 PM1.55
Oct 14, 9:15 PM1.55
Oct 14, 9:10 PM1.55
Oct 14, 9:05 PM1.55
Oct 14, 9:00 PM1.55
Oct 14, 8:55 PM1.55
Oct 14, 8:50 PM1.55
Oct 14, 8:45 PM1.55
Oct 14, 8:40 PM1.55
Water level, 7 days at USGS Stream Gage at Cull C Ab Cull C Res near Castro Valley: the water from 1.55 to 1.55 feet of stage, the latest 1.55 feet.WATER LEVEL, 7 DAYSFTHIGH 1.55 FT, OCT 8, 8:40 PM · LOW 1.55 FT, OCT 8, 8:40 PM1.521.541.561.581.60Fri 9Sat 10Sun 11Mon 12Tue 13Wed 14Thu 151.55
Latest
1.55 ftOct 15, 7:50 PM
Highest
1.55 ftOct 8, 8:40 PM
Lowest
1.55 ftOct 8, 8:40 PM
Range
0.00 fthighest less lowest
Change
No changesince Oct 8, 8:40 PM
Readings
2,007
The readings these charts were drawn from, as a table
TimeStage ft
Oct 15, 7:50 PM1.55
Oct 15, 6:55 PM1.55
Oct 15, 5:55 PM1.55
Oct 15, 4:55 PM1.55
Oct 15, 3:55 PM1.55
Oct 15, 2:55 PM1.55
Oct 15, 1:55 PM1.55
Oct 15, 12:55 PM1.55
Oct 15, 11:55 AM1.55
Oct 15, 10:55 AM1.55
Oct 15, 9:55 AM1.55
Oct 15, 8:55 AM1.55
Oct 15, 7:55 AM1.55
Oct 15, 6:55 AM1.55
Oct 15, 5:55 AM1.55
Oct 15, 4:55 AM1.55
Oct 15, 3:55 AM1.55
Oct 15, 2:55 AM1.55
Oct 15, 1:55 AM1.55
Oct 15, 12:55 AM1.55
Oct 14, 11:55 PM1.55
Oct 14, 10:55 PM1.55
Oct 14, 9:55 PM1.55
Oct 14, 8:55 PM1.55
Oct 14, 7:55 PM1.55
Oct 14, 6:55 PM1.55
Oct 14, 5:55 PM1.55
Oct 14, 4:55 PM1.55
Oct 14, 3:55 PM1.55
Oct 14, 2:55 PM1.55
Oct 14, 1:55 PM1.55
Oct 14, 12:55 PM1.55
Oct 14, 11:55 AM1.55
Oct 14, 10:55 AM1.55
Oct 14, 9:55 AM1.55
Oct 14, 8:55 AM1.55
Oct 14, 7:55 AM1.55
Oct 14, 6:55 AM1.55
Oct 14, 5:55 AM1.55
Oct 14, 4:55 AM1.55
Oct 14, 3:55 AM1.55
Oct 14, 2:55 AM1.55
Oct 14, 1:55 AM1.55
Oct 14, 12:55 AM1.55
Oct 13, 11:55 PM1.55
Oct 13, 10:55 PM1.55
Oct 13, 9:55 PM1.55
Oct 13, 8:55 PM1.55
Oct 13, 7:55 PM1.55
Oct 13, 6:55 PM1.55
Oct 13, 5:55 PM1.55
Oct 13, 4:55 PM1.55
Oct 13, 3:55 PM1.55
Oct 13, 2:55 PM1.55
Oct 13, 1:55 PM1.55
Oct 13, 12:55 PM1.55
Oct 13, 11:55 AM1.55
Oct 13, 10:55 AM1.55
Oct 13, 9:55 AM1.55
Oct 13, 8:55 AM1.55
Oct 13, 7:55 AM1.55
Oct 13, 6:55 AM1.55
Oct 13, 5:55 AM1.55
Oct 13, 4:55 AM1.55
Oct 13, 3:55 AM1.55
Oct 13, 2:55 AM1.55
Oct 13, 1:55 AM1.55
Oct 13, 12:55 AM1.55
Oct 12, 11:55 PM1.55
Oct 12, 10:55 PM1.55
Oct 12, 9:55 PM1.55
Oct 12, 8:55 PM1.55
Oct 12, 7:55 PM1.55
Oct 12, 6:55 PM1.55
Oct 12, 5:55 PM1.55
Oct 12, 4:55 PM1.55
Oct 12, 3:55 PM1.55
Oct 12, 2:55 PM1.55
Oct 12, 1:55 PM1.55
Oct 12, 12:55 PM1.55
Oct 12, 11:55 AM1.55
Oct 12, 10:55 AM1.55
Oct 12, 9:55 AM1.55
Oct 12, 8:55 AM1.55
Oct 12, 7:55 AM1.55
Oct 12, 6:55 AM1.55
Oct 12, 5:55 AM1.55
Oct 12, 4:55 AM1.55
Oct 12, 3:55 AM1.55
Oct 12, 2:55 AM1.55
Oct 12, 1:55 AM1.55
Oct 12, 12:55 AM1.55
Oct 11, 11:55 PM1.55
Oct 11, 10:55 PM1.55
Oct 11, 9:55 PM1.55
Oct 11, 8:55 PM1.55
Oct 11, 7:55 PM1.55
Oct 11, 6:55 PM1.55
Oct 11, 5:55 PM1.55
Oct 11, 4:55 PM1.55
Oct 11, 3:55 PM1.55
Oct 11, 2:55 PM1.55
Oct 11, 1:55 PM1.55
Oct 11, 12:55 PM1.55
Oct 11, 11:55 AM1.55
Oct 11, 10:55 AM1.55
Oct 11, 9:55 AM1.55
Oct 11, 8:55 AM1.55
Oct 11, 7:55 AM1.55
Oct 11, 6:55 AM1.55
Oct 11, 5:55 AM1.55
Oct 11, 4:55 AM1.55
Oct 11, 3:55 AM1.55
Oct 11, 2:55 AM1.55
Oct 11, 1:55 AM1.55
Oct 11, 12:55 AM1.55
Oct 10, 11:55 PM1.55
Oct 10, 10:55 PM1.55
Oct 10, 9:55 PM1.55
Oct 10, 8:55 PM1.55
Oct 10, 7:55 PM1.55
Oct 10, 6:55 PM1.55
Oct 10, 5:55 PM1.55
Oct 10, 4:55 PM1.55
Oct 10, 3:55 PM1.55
Oct 10, 2:55 PM1.55
Oct 10, 1:55 PM1.55
Oct 10, 12:55 PM1.55
Oct 10, 11:55 AM1.55
Oct 10, 10:55 AM1.55
Oct 10, 9:55 AM1.55
Oct 10, 8:55 AM1.55
Oct 10, 7:55 AM1.55
Oct 10, 6:55 AM1.55
Oct 10, 5:55 AM1.55
Oct 10, 4:55 AM1.55
Oct 10, 3:55 AM1.55
Oct 10, 2:55 AM1.55
Oct 10, 1:55 AM1.55
Oct 10, 12:55 AM1.55
Oct 9, 11:55 PM1.55
Oct 9, 10:55 PM1.55
Oct 9, 9:55 PM1.55
Oct 9, 8:55 PM1.55
Oct 9, 7:55 PM1.55
Oct 9, 6:55 PM1.55
Oct 9, 5:55 PM1.55
Oct 9, 4:55 PM1.55
Oct 9, 3:55 PM1.55
Oct 9, 2:55 PM1.55
Oct 9, 1:55 PM1.55
Oct 9, 12:55 PM1.55
Oct 9, 11:55 AM1.55
Oct 9, 10:55 AM1.55
Oct 9, 9:55 AM1.55
Oct 9, 8:55 AM1.55
Oct 9, 7:55 AM1.55
Oct 9, 6:55 AM1.55
Oct 9, 5:55 AM1.55
Oct 9, 4:55 AM1.55
Oct 9, 3:55 AM1.55
Oct 9, 2:55 AM1.55
Oct 9, 1:55 AM1.55
Oct 9, 12:55 AM1.55
Oct 8, 11:55 PM1.55
Oct 8, 10:55 PM1.55
Oct 8, 9:55 PM1.55
Oct 8, 8:55 PM1.55
Water level, 30 days at USGS Stream Gage at Cull C Ab Cull C Res near Castro Valley: the water from 1.55 to 1.55 feet of stage, the latest 1.55 feet.WATER LEVEL, 30 DAYSFTHIGH 1.55 FT, SEP 15, 8:40 PM · LOW 1.55 FT, SEP 15, 8:40 PM1.521.541.561.581.60Sep 16Sep 21Sep 26Oct 1Oct 6Oct 111.55
Latest
1.55 ftOct 15, 7:50 PM
Highest
1.55 ftSep 15, 8:40 PM
Lowest
1.55 ftSep 15, 8:40 PM
Range
0.00 fthighest less lowest
Change
No changesince Sep 15, 8:40 PM
Readings
8,535
The readings these charts were drawn from, as a table
DayHigh ftLow ftAverage ftLast ftReadings
Oct 151.551.551.551.55239
Oct 141.551.551.551.55288
Oct 131.551.551.551.55288
Oct 121.551.551.551.55288
Oct 111.551.551.551.55288
Oct 101.551.551.551.55288
Oct 91.551.551.551.55288
Oct 81.551.551.551.55276
Oct 71.551.551.551.55276
Oct 61.551.551.551.55288
Oct 51.551.551.551.55288
Oct 41.551.551.551.55288
Oct 31.551.551.551.55288
Oct 21.551.551.551.55288
Oct 11.551.551.551.55288
Sep 301.551.551.551.55276
Sep 291.551.551.551.55288
Sep 281.551.551.551.55288
Sep 271.551.551.551.55288
Sep 261.551.551.551.55288
Sep 251.551.551.551.55288
Sep 241.551.551.551.55288
Sep 231.551.551.551.55288
Sep 221.551.551.551.55276
Sep 211.551.551.551.55288
Sep 201.551.551.551.55288
Sep 191.551.551.551.55240
Sep 181.551.551.551.55288
Sep 171.551.551.551.55288
Sep 161.551.551.551.55288
Sep 151.551.551.551.5540

How it reports

Rank
559of 4,465 in California, Oct 16
Schedule
every houron the hour's :50
Reports received, 24 hours
24 of 24100% of its schedule
Reports received, 7 days
168 of 168100% of its schedule, 169 reports in all
Longest silence, 7 days
1 hourfrom Oct 8, 8:50 PM
Latest report
Oct 15, 7:50 PMlocal time
Time to reach Storm Station
15 min9 in 10 within 15 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 score95.4of 100

California median
91.6the median score of 4,465 stations
Scoring higher
530stations in California
Sharing its score
56ranks 531 to 586
Points deducted
4.62.9 accuracy, 1.0 arrival, 0.8 forecast check
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; California median 85.6, 100.0, 92.4
Next above
VAEC1rank 557; ahead on longest silence 70 min against 71 min
Next below
CSLC1rank 570; behind on reports due 168 against 14, the longer record first
Sharing its rank
10other 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 35100.035.0 of 35 pointsCalifornia median 98.5168 of 168 scheduled reports received in 7 days
  2. Arrivalweight 1090.49.0 of 10 pointsCalifornia median 81.2half its reports arrived within 15 min
  3. Continuityweight 10100.010.0 of 10 pointsCalifornia median 100.0longest silence 71 min, on a schedule of one report every 60 min
  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 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 USGS Stream Gage at Cull C Ab Cull C Res near Castro Valley

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.