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Live/Water/California/USGS Stream Gage at San Lorenzo C A Hayward

USGS Stream Gage at San Lorenzo C A Hayward

A gauge on the USGS Stream in Alameda County, California. Its stage was 2.58 ft as of Oct 16, 3:20 AM PDT.

Gauge LRZC1Alameda County, CaliforniaEvery gauge in California

Stage now
2.58 ftreported Oct 16, 3:20 AM PDT
24 hour change
Fell 0.01 ftsince Oct 15, 3:20 AM
Rank
1,275of 4,465 in California, Oct 16
Elevation
190 ftabove sea level
County
Alameda County
Position
37.6864° N, 122.0622° W
Record since
2010

Water level

USGS Stream Gage at San Lorenzo C A Hayward

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 San Lorenzo C A Hayward: the water from 2.58 to 2.59 feet of stage, the latest 2.58 feet.WATER LEVEL, 24 HOURSFTHIGH 2.59 FT, OCT 15, 3:50 AM · LOW 2.58 FT, OCT 15, 5:00 AM2.542.562.582.602.622.646 AM9 AM12 PM3 PM6 PM9 PMOct 163 AM2.58
Latest
2.58 ftOct 16, 3:20 AM
Highest
2.59 ftOct 15, 3:50 AM
Lowest
2.58 ftOct 15, 5:00 AM
Range
0.01 fthighest less lowest
Change
Fell 0.01 ftsince Oct 15, 3:50 AM
Readings
283
The readings these charts were drawn from, as a table
TimeStage ft
Oct 16, 3:20 AM2.58
Oct 16, 3:15 AM2.58
Oct 16, 3:10 AM2.58
Oct 16, 3:05 AM2.58
Oct 16, 3:00 AM2.58
Oct 16, 2:55 AM2.58
Oct 16, 2:50 AM2.58
Oct 16, 2:45 AM2.58
Oct 16, 2:40 AM2.58
Oct 16, 2:35 AM2.58
Oct 16, 2:30 AM2.58
Oct 16, 2:25 AM2.58
Oct 16, 2:20 AM2.58
Oct 16, 2:15 AM2.58
Oct 16, 2:10 AM2.58
Oct 16, 2:05 AM2.58
Oct 16, 2:00 AM2.58
Oct 16, 1:55 AM2.58
Oct 16, 1:50 AM2.58
Oct 16, 1:45 AM2.58
Oct 16, 1:40 AM2.58
Oct 16, 1:35 AM2.58
Oct 16, 1:30 AM2.58
Oct 16, 1:25 AM2.58
Oct 16, 1:20 AM2.58
Oct 16, 1:15 AM2.58
Oct 16, 1:10 AM2.58
Oct 16, 1:05 AM2.58
Oct 16, 1:00 AM2.58
Oct 16, 12:55 AM2.58
Oct 16, 12:50 AM2.58
Oct 16, 12:45 AM2.58
Oct 16, 12:40 AM2.58
Oct 16, 12:35 AM2.58
Oct 16, 12:30 AM2.58
Oct 16, 12:25 AM2.58
Oct 16, 12:20 AM2.58
Oct 16, 12:15 AM2.58
Oct 16, 12:10 AM2.58
Oct 16, 12:05 AM2.58
Oct 16, 12:00 AM2.58
Oct 15, 11:55 PM2.58
Oct 15, 11:50 PM2.58
Oct 15, 11:45 PM2.58
Oct 15, 11:40 PM2.58
Oct 15, 11:35 PM2.58
Oct 15, 11:30 PM2.59
Oct 15, 11:25 PM2.59
Oct 15, 11:20 PM2.58
Oct 15, 11:15 PM2.59
Oct 15, 11:10 PM2.59
Oct 15, 11:05 PM2.59
Oct 15, 11:00 PM2.59
Oct 15, 10:55 PM2.59
Oct 15, 10:50 PM2.59
Oct 15, 10:45 PM2.59
Oct 15, 10:40 PM2.59
Oct 15, 10:35 PM2.59
Oct 15, 10:30 PM2.59
Oct 15, 10:25 PM2.59
Oct 15, 10:20 PM2.59
Oct 15, 10:15 PM2.59
Oct 15, 10:10 PM2.59
Oct 15, 10:05 PM2.59
Oct 15, 10:00 PM2.59
Oct 15, 9:55 PM2.59
Oct 15, 9:50 PM2.59
Oct 15, 9:45 PM2.59
Oct 15, 9:40 PM2.59
Oct 15, 9:35 PM2.59
Oct 15, 9:30 PM2.59
Oct 15, 9:25 PM2.59
Oct 15, 9:20 PM2.59
Oct 15, 9:15 PM2.59
Oct 15, 9:10 PM2.59
Oct 15, 9:05 PM2.59
Oct 15, 9:00 PM2.59
Oct 15, 8:55 PM2.59
Oct 15, 8:50 PM2.59
Oct 15, 8:45 PM2.59
Oct 15, 8:40 PM2.59
Oct 15, 8:35 PM2.59
Oct 15, 8:30 PM2.59
Oct 15, 8:25 PM2.59
Oct 15, 8:20 PM2.59
Oct 15, 8:15 PM2.59
Oct 15, 8:10 PM2.59
Oct 15, 8:05 PM2.59
Oct 15, 8:00 PM2.59
Oct 15, 7:55 PM2.59
Oct 15, 7:50 PM2.59
Oct 15, 7:45 PM2.59
Oct 15, 7:40 PM2.59
Oct 15, 7:35 PM2.59
Oct 15, 7:30 PM2.59
Oct 15, 7:25 PM2.59
Oct 15, 7:20 PM2.59
Oct 15, 7:15 PM2.59
Oct 15, 7:10 PM2.59
Oct 15, 7:05 PM2.59
Oct 15, 7:00 PM2.59
Oct 15, 6:55 PM2.59
Oct 15, 6:50 PM2.59
Oct 15, 6:45 PM2.59
Oct 15, 6:40 PM2.59
Oct 15, 6:35 PM2.59
Oct 15, 6:30 PM2.59
Oct 15, 6:25 PM2.59
Oct 15, 6:20 PM2.59
Oct 15, 6:15 PM2.59
Oct 15, 6:10 PM2.59
Oct 15, 6:05 PM2.59
Oct 15, 6:00 PM2.59
Oct 15, 5:55 PM2.59
Oct 15, 5:50 PM2.59
Oct 15, 5:45 PM2.59
Oct 15, 5:40 PM2.59
Oct 15, 5:35 PM2.59
Oct 15, 5:30 PM2.59
Oct 15, 5:25 PM2.59
Oct 15, 5:20 PM2.59
Oct 15, 5:15 PM2.59
Oct 15, 5:10 PM2.59
Oct 15, 5:05 PM2.59
Oct 15, 5:00 PM2.59
Oct 15, 4:55 PM2.59
Oct 15, 4:50 PM2.59
Oct 15, 4:45 PM2.59
Oct 15, 4:40 PM2.59
Oct 15, 4:35 PM2.59
Oct 15, 4:30 PM2.59
Oct 15, 4:25 PM2.59
Oct 15, 4:20 PM2.59
Oct 15, 4:15 PM2.59
Oct 15, 4:10 PM2.59
Oct 15, 4:05 PM2.59
Oct 15, 4:00 PM2.59
Oct 15, 3:55 PM2.59
Oct 15, 3:50 PM2.59
Oct 15, 3:45 PM2.59
Oct 15, 3:40 PM2.59
Oct 15, 3:35 PM2.59
Oct 15, 3:30 PM2.59
Oct 15, 3:25 PM2.59
Oct 15, 3:20 PM2.59
Oct 15, 3:15 PM2.59
Oct 15, 3:10 PM2.59
Oct 15, 3:05 PM2.59
Oct 15, 3:00 PM2.59
Oct 15, 2:55 PM2.59
Oct 15, 2:50 PM2.59
Oct 15, 2:45 PM2.59
Oct 15, 2:40 PM2.59
Oct 15, 2:35 PM2.59
Oct 15, 2:30 PM2.59
Oct 15, 2:25 PM2.59
Oct 15, 2:20 PM2.59
Oct 15, 2:15 PM2.59
Oct 15, 2:10 PM2.59
Oct 15, 2:05 PM2.59
Oct 15, 2:00 PM2.59
Oct 15, 1:55 PM2.59
Oct 15, 1:50 PM2.59
Oct 15, 1:45 PM2.59
Oct 15, 1:40 PM2.59
Oct 15, 1:35 PM2.59
Oct 15, 1:30 PM2.59
Oct 15, 1:25 PM2.59
Oct 15, 1:20 PM2.59
Oct 15, 1:15 PM2.59
Oct 15, 1:10 PM2.59
Oct 15, 1:05 PM2.59
Oct 15, 1:00 PM2.59
Oct 15, 12:55 PM2.59
Oct 15, 12:50 PM2.59
Oct 15, 12:45 PM2.59
Oct 15, 12:40 PM2.59
Oct 15, 12:35 PM2.59
Oct 15, 12:30 PM2.59
Oct 15, 12:25 PM2.59
Oct 15, 12:20 PM2.59
Oct 15, 12:15 PM2.59
Oct 15, 12:10 PM2.59
Oct 15, 12:05 PM2.59
Oct 15, 12:00 PM2.59
Oct 15, 11:55 AM2.59
Oct 15, 11:50 AM2.59
Oct 15, 11:45 AM2.59
Oct 15, 11:40 AM2.59
Oct 15, 11:35 AM2.59
Oct 15, 11:30 AM2.59
Oct 15, 11:25 AM2.59
Oct 15, 11:20 AM2.59
Oct 15, 11:15 AM2.59
Oct 15, 11:10 AM2.59
Oct 15, 11:05 AM2.59
Oct 15, 11:00 AM2.59
Oct 15, 10:55 AM2.59
Oct 15, 10:50 AM2.59
Oct 15, 10:45 AM2.59
Oct 15, 10:40 AM2.59
Oct 15, 10:35 AM2.59
Oct 15, 10:30 AM2.59
Oct 15, 10:25 AM2.59
Oct 15, 10:20 AM2.58
Oct 15, 10:15 AM2.58
Oct 15, 10:10 AM2.59
Oct 15, 10:05 AM2.59
Oct 15, 10:00 AM2.59
Oct 15, 9:55 AM2.58
Oct 15, 9:50 AM2.59
Oct 15, 9:45 AM2.59
Oct 15, 9:40 AM2.58
Oct 15, 9:35 AM2.59
Oct 15, 9:30 AM2.58
Oct 15, 9:25 AM2.59
Oct 15, 9:20 AM2.59
Oct 15, 9:15 AM2.59
Oct 15, 9:10 AM2.59
Oct 15, 9:05 AM2.59
Oct 15, 9:00 AM2.59
Oct 15, 8:55 AM2.59
Oct 15, 8:50 AM2.59
Oct 15, 8:45 AM2.59
Oct 15, 8:40 AM2.59
Oct 15, 8:35 AM2.59
Oct 15, 8:30 AM2.59
Oct 15, 8:25 AM2.59
Oct 15, 8:20 AM2.59
Oct 15, 8:15 AM2.59
Oct 15, 8:10 AM2.59
Oct 15, 8:05 AM2.59
Oct 15, 8:00 AM2.59
Oct 15, 7:55 AM2.59
Oct 15, 7:50 AM2.59
Oct 15, 7:45 AM2.59
Oct 15, 7:40 AM2.59
Oct 15, 7:35 AM2.59
Oct 15, 7:30 AM2.59
Oct 15, 7:25 AM2.59
Oct 15, 7:20 AM2.59
Oct 15, 7:15 AM2.58
Oct 15, 7:10 AM2.58
Oct 15, 7:05 AM2.58
Oct 15, 7:00 AM2.59
Oct 15, 6:55 AM2.59
Oct 15, 6:50 AM2.59
Oct 15, 6:45 AM2.59
Oct 15, 6:40 AM2.58
Oct 15, 6:35 AM2.59
Oct 15, 6:30 AM2.58
Oct 15, 6:25 AM2.59
Oct 15, 6:20 AM2.59
Oct 15, 6:15 AM2.58
Oct 15, 6:10 AM2.58
Oct 15, 6:05 AM2.58
Oct 15, 6:00 AM2.59
Oct 15, 5:55 AM2.58
Oct 15, 5:50 AM2.59
Oct 15, 5:45 AM2.59
Oct 15, 5:40 AM2.58
Oct 15, 5:35 AM2.59
Oct 15, 5:30 AM2.59
Oct 15, 5:25 AM2.59
Oct 15, 5:20 AM2.58
Oct 15, 5:15 AM2.59
Oct 15, 5:10 AM2.59
Oct 15, 5:05 AM2.59
Oct 15, 5:00 AM2.58
Oct 15, 4:55 AM2.59
Oct 15, 4:50 AM2.59
Oct 15, 4:45 AM2.59
Oct 15, 4:40 AM2.59
Oct 15, 4:35 AM2.59
Oct 15, 4:30 AM2.59
Oct 15, 4:25 AM2.59
Oct 15, 4:20 AM2.59
Oct 15, 4:15 AM2.59
Oct 15, 4:10 AM2.59
Oct 15, 4:05 AM2.59
Oct 15, 4:00 AM2.59
Oct 15, 3:55 AM2.59
Oct 15, 3:50 AM2.59
Water level, 7 days at USGS Stream Gage at San Lorenzo C A Hayward: the water from 2.55 to 2.62 feet of stage, the latest 2.58 feet.WATER LEVEL, 7 DAYSFTHIGH 2.62 FT, OCT 10, 5:55 PM · LOW 2.55 FT, OCT 9, 4:45 PM2.542.562.582.602.622.64Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Fri 162.58
Latest
2.58 ftOct 16, 3:20 AM
Highest
2.62 ftOct 10, 5:55 PM
Lowest
2.55 ftOct 9, 4:45 PM
Range
0.07 fthighest less lowest
Change
Rose 0.02 ftsince Oct 9, 3:50 AM
Readings
2,005
The readings these charts were drawn from, as a table
TimeStage ft
Oct 16, 3:20 AM2.58
Oct 16, 2:55 AM2.58
Oct 16, 1:55 AM2.58
Oct 16, 12:55 AM2.58
Oct 15, 11:55 PM2.58
Oct 15, 10:55 PM2.59
Oct 15, 9:55 PM2.59
Oct 15, 8:55 PM2.59
Oct 15, 7:55 PM2.59
Oct 15, 6:55 PM2.59
Oct 15, 5:55 PM2.59
Oct 15, 4:55 PM2.59
Oct 15, 3:55 PM2.59
Oct 15, 2:55 PM2.59
Oct 15, 1:55 PM2.59
Oct 15, 12:55 PM2.59
Oct 15, 11:55 AM2.59
Oct 15, 10:55 AM2.59
Oct 15, 9:55 AM2.58
Oct 15, 8:55 AM2.59
Oct 15, 7:55 AM2.59
Oct 15, 6:55 AM2.59
Oct 15, 5:55 AM2.58
Oct 15, 4:55 AM2.59
Oct 15, 3:55 AM2.59
Oct 15, 2:55 AM2.59
Oct 15, 1:55 AM2.59
Oct 15, 12:55 AM2.59
Oct 14, 11:55 PM2.59
Oct 14, 10:55 PM2.59
Oct 14, 9:55 PM2.59
Oct 14, 8:55 PM2.59
Oct 14, 7:55 PM2.59
Oct 14, 6:55 PM2.59
Oct 14, 5:55 PM2.59
Oct 14, 4:55 PM2.59
Oct 14, 3:55 PM2.59
Oct 14, 2:55 PM2.59
Oct 14, 1:55 PM2.59
Oct 14, 12:55 PM2.59
Oct 14, 11:55 AM2.59
Oct 14, 10:55 AM2.59
Oct 14, 9:55 AM2.59
Oct 14, 8:55 AM2.59
Oct 14, 7:55 AM2.59
Oct 14, 6:55 AM2.59
Oct 14, 5:55 AM2.59
Oct 14, 4:55 AM2.59
Oct 14, 3:55 AM2.59
Oct 14, 2:55 AM2.59
Oct 14, 1:55 AM2.60
Oct 14, 12:55 AM2.60
Oct 13, 11:55 PM2.59
Oct 13, 10:55 PM2.59
Oct 13, 9:55 PM2.59
Oct 13, 8:55 PM2.59
Oct 13, 7:55 PM2.59
Oct 13, 6:55 PM2.59
Oct 13, 5:55 PM2.59
Oct 13, 4:55 PM2.59
Oct 13, 3:55 PM2.59
Oct 13, 2:55 PM2.59
Oct 13, 1:55 PM2.59
Oct 13, 12:55 PM2.59
Oct 13, 11:55 AM2.59
Oct 13, 10:55 AM2.58
Oct 13, 9:55 AM2.58
Oct 13, 8:55 AM2.58
Oct 13, 7:55 AM2.58
Oct 13, 6:55 AM2.58
Oct 13, 5:55 AM2.58
Oct 13, 4:55 AM2.58
Oct 13, 3:55 AM2.57
Oct 13, 2:55 AM2.57
Oct 13, 1:55 AM2.58
Oct 13, 12:55 AM2.58
Oct 12, 11:55 PM2.58
Oct 12, 10:55 PM2.58
Oct 12, 9:55 PM2.58
Oct 12, 8:55 PM2.59
Oct 12, 7:55 PM2.59
Oct 12, 6:55 PM2.59
Oct 12, 5:55 PM2.59
Oct 12, 4:55 PM2.59
Oct 12, 3:55 PM2.59
Oct 12, 2:55 PM2.60
Oct 12, 1:55 PM2.60
Oct 12, 12:55 PM2.60
Oct 12, 11:55 AM2.60
Oct 12, 10:55 AM2.60
Oct 12, 9:55 AM2.60
Oct 12, 8:50 AM2.60
Oct 12, 7:55 AM2.60
Oct 12, 6:55 AM2.60
Oct 12, 5:55 AM2.60
Oct 12, 4:55 AM2.60
Oct 12, 3:55 AM2.61
Oct 12, 2:55 AM2.61
Oct 12, 1:55 AM2.61
Oct 12, 12:55 AM2.61
Oct 11, 11:55 PM2.61
Oct 11, 10:55 PM2.61
Oct 11, 9:55 PM2.61
Oct 11, 8:55 PM2.61
Oct 11, 7:55 PM2.61
Oct 11, 6:55 PM2.61
Oct 11, 5:55 PM2.61
Oct 11, 4:55 PM2.61
Oct 11, 3:55 PM2.61
Oct 11, 2:55 PM2.61
Oct 11, 1:55 PM2.62
Oct 11, 12:55 PM2.61
Oct 11, 11:55 AM2.61
Oct 11, 10:55 AM2.61
Oct 11, 9:55 AM2.61
Oct 11, 8:55 AM2.61
Oct 11, 7:55 AM2.62
Oct 11, 6:55 AM2.62
Oct 11, 5:55 AM2.62
Oct 11, 4:55 AM2.62
Oct 11, 3:55 AM2.62
Oct 11, 2:55 AM2.62
Oct 11, 1:55 AM2.61
Oct 11, 12:55 AM2.61
Oct 10, 11:55 PM2.61
Oct 10, 10:55 PM2.61
Oct 10, 9:55 PM2.61
Oct 10, 8:55 PM2.62
Oct 10, 7:55 PM2.62
Oct 10, 6:55 PM2.62
Oct 10, 5:55 PM2.62
Oct 10, 4:55 PM2.60
Oct 10, 3:55 PM2.59
Oct 10, 2:55 PM2.58
Oct 10, 1:55 PM2.58
Oct 10, 12:55 PM2.59
Oct 10, 11:55 AM2.59
Oct 10, 10:55 AM2.58
Oct 10, 9:55 AM2.58
Oct 10, 8:55 AM2.57
Oct 10, 7:55 AM2.57
Oct 10, 6:55 AM2.57
Oct 10, 5:55 AM2.57
Oct 10, 4:55 AM2.57
Oct 10, 3:55 AM2.57
Oct 10, 2:55 AM2.57
Oct 10, 1:55 AM2.57
Oct 10, 12:55 AM2.57
Oct 9, 11:55 PM2.56
Oct 9, 10:55 PM2.56
Oct 9, 9:55 PM2.56
Oct 9, 8:55 PM2.56
Oct 9, 7:55 PM2.56
Oct 9, 6:55 PM2.56
Oct 9, 5:55 PM2.56
Oct 9, 4:55 PM2.56
Oct 9, 3:55 PM2.56
Oct 9, 2:55 PM2.56
Oct 9, 1:55 PM2.56
Oct 9, 12:55 PM2.56
Oct 9, 11:55 AM2.56
Oct 9, 10:55 AM2.56
Oct 9, 9:55 AM2.56
Oct 9, 8:55 AM2.56
Oct 9, 7:55 AM2.56
Oct 9, 6:55 AM2.56
Oct 9, 5:55 AM2.56
Oct 9, 4:55 AM2.56
Oct 9, 3:55 AM2.56
Water level, 30 days at USGS Stream Gage at San Lorenzo C A Hayward: the water from 2.33 to 2.89 feet of stage, the latest 2.58 feet.WATER LEVEL, 30 DAYSFTHIGH 2.89 FT, SEP 16, 12:05 PM · LOW 2.33 FT, SEP 19, 5:00 AM2.22.42.62.83.0Sep 16Sep 21Sep 26Oct 1Oct 6Oct 112.58
Latest
2.58 ftOct 16, 3:20 AM
Highest
2.89 ftSep 16, 12:05 PM
Lowest
2.33 ftSep 19, 5:00 AM
Range
0.56 fthighest less lowest
Change
Fell 0.01 ftsince Sep 16, 3:50 AM
Readings
8,500
The readings these charts were drawn from, as a table
DayHigh ftLow ftAverage ftLast ftReadings
Oct 162.582.582.582.5841
Oct 152.592.582.592.58288
Oct 142.602.592.592.59288
Oct 132.592.572.592.59288
Oct 122.612.582.602.58282
Oct 112.622.612.612.61288
Oct 102.622.562.592.61288
Oct 92.562.552.562.56286
Oct 82.562.552.562.55284
Oct 72.552.542.552.55282
Oct 62.552.532.542.54285
Oct 52.542.532.532.54285
Oct 42.552.542.542.54285
Oct 32.562.542.552.55288
Oct 22.562.542.552.55288
Oct 12.602.332.492.56285
Sep 302.362.342.352.34285
Sep 292.642.342.412.36288
Sep 282.372.342.362.34288
Sep 272.382.332.342.37288
Sep 262.352.332.342.33288
Sep 252.342.332.332.34288
Sep 242.352.332.332.33288
Sep 232.362.352.362.35288
Sep 222.362.352.362.36276
Sep 212.362.342.352.35285
Sep 202.352.332.342.34282
Sep 192.362.332.352.34231
Sep 182.412.362.402.36276
Sep 172.402.352.382.39282
Sep 162.892.342.462.35236

How it reports

Rank
1,275of 4,465 in California, Oct 16
Schedule
every 15 minon the hour's :05, :20, :35 and :50
Reports received, 24 hours
94 of 9697.9% of its schedule
Reports received, 7 days
667 of 67299.2% of its schedule
Longest silence, 7 days
45 minfrom Oct 15, 9:50 AM
Latest report
Oct 16, 3:20 AMlocal time
Time to reach Storm Station
19 min9 in 10 within 20 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 score94.1of 100

California median
91.6the median score of 4,465 stations
Scoring higher
1,256stations in California
Sharing its score
35ranks 1,257 to 1,291
Points deducted
5.92.9 accuracy, 1.8 arrival, 0.8 forecast check, 0.4 reports received
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; California median 85.6, 100.0, 92.4
Next above
ICRC1rank 1,274; ahead on reports received 98.9% against 98.8%
Next below
FHLC1rank 1,276; behind on reports due 672 against 168, 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 3598.834.6 of 35 pointsCalifornia median 98.5664 of 672 scheduled reports received in 7 days
  2. Arrivalweight 1081.98.2 of 10 pointsCalifornia median 81.2half its reports arrived within 19 min
  3. Continuityweight 10100.010.0 of 10 pointsCalifornia median 100.0longest silence 45 min, on a schedule of one report every 15 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 (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 USGS Stream Gage at San Lorenzo C A Hayward

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.