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Live/Water/California/Alert Streamflow/Rain Gage 1 SW Hopper Ck at HWY 29

Alert Streamflow/Rain Gage 1 SW Hopper Ck at HWY 29

A water gauge in Napa County, California. Its stage was 0.07 ft as of Oct 15, 9:50 PM PDT.

Gauge HCRC1Napa County, CaliforniaEvery gauge in California

Stage now
0.07 ftreported Oct 15, 9:50 PM PDT
24 hour change
No changesince Oct 14, 9:50 PM
Elevation
180 ftabove sea level
County
Napa County
Position
38.4081° N, 122.3714° W
Record since
2010

Water level

Alert Streamflow/Rain Gage 1 SW Hopper Ck at HWY 29

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 Alert Streamflow/Rain Gage 1 SW Hopper Ck at HWY 29: the water from 0.06 to 0.07 feet of stage, the latest 0.07 feet.WATER LEVEL, 24 HOURSFTHIGH 0.07 FT, OCT 15, 9:50 AM · LOW 0.06 FT, OCT 15, 9:48 AM0.020.040.060.080.100.129 AM12 PM3 PM6 PM9 PMOct 163 AM6 AM0.07
Latest
0.07 ftOct 15, 9:50 PM
Highest
0.07 ftOct 15, 9:50 AM
Lowest
0.06 ftOct 15, 9:48 AM
Range
0.01 fthighest less lowest
Change
Rose 0.01 ftsince Oct 15, 9:48 AM
Readings
4
The readings these charts were drawn from, as a table
TimeStage ft
Oct 15, 9:50 PM0.07
Oct 15, 9:48 PM0.06
Oct 15, 9:50 AM0.07
Oct 15, 9:48 AM0.06
Water level, 7 days at Alert Streamflow/Rain Gage 1 SW Hopper Ck at HWY 29: the water from 0.06 to 0.07 feet of stage, the latest 0.07 feet.WATER LEVEL, 7 DAYSFTHIGH 0.07 FT, OCT 9, 9:50 AM · LOW 0.06 FT, OCT 9, 9:48 AM0.020.040.060.080.100.12Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Fri 160.07
Latest
0.07 ftOct 15, 9:50 PM
Highest
0.07 ftOct 9, 9:50 AM
Lowest
0.06 ftOct 9, 9:48 AM
Range
0.01 fthighest less lowest
Change
Rose 0.01 ftsince Oct 9, 9:48 AM
Readings
26
The readings these charts were drawn from, as a table
TimeStage ft
Oct 15, 9:50 PM0.07
Oct 15, 9:50 AM0.07
Oct 14, 9:50 PM0.07
Oct 14, 9:50 AM0.07
Oct 13, 9:50 PM0.07
Oct 13, 9:50 AM0.07
Oct 12, 9:50 PM0.07
Oct 12, 9:50 AM0.06
Oct 11, 9:50 PM0.07
Oct 11, 9:50 AM0.07
Oct 10, 9:50 PM0.07
Oct 10, 9:50 AM0.07
Oct 9, 9:50 PM0.07
Oct 9, 9:50 AM0.07
Water level, 30 days at Alert Streamflow/Rain Gage 1 SW Hopper Ck at HWY 29: the water from 0.06 to 0.07 feet of stage, the latest 0.07 feet.WATER LEVEL, 30 DAYSFTHIGH 0.07 FT, SEP 16, 9:50 AM · LOW 0.06 FT, SEP 16, 9:48 AM0.020.040.060.080.100.12Sep 16Sep 21Sep 26Oct 1Oct 6Oct 110.07
Latest
0.07 ftOct 15, 9:50 PM
Highest
0.07 ftSep 16, 9:50 AM
Lowest
0.06 ftSep 16, 9:48 AM
Range
0.01 fthighest less lowest
Change
Rose 0.01 ftsince Sep 16, 9:48 AM
Readings
111
The readings these charts were drawn from, as a table
DayHigh ftLow ftAverage ftLast ftReadings
Oct 150.070.060.070.074
Oct 140.070.070.070.072
Oct 130.070.060.070.074
Oct 120.070.060.060.074
Oct 110.070.060.070.074
Oct 100.070.060.070.074
Oct 90.070.060.070.074
Oct 80.070.060.060.073
Oct 70.070.060.070.074
Oct 60.070.060.070.074
Oct 50.070.060.070.074
Oct 40.070.060.070.074
Oct 30.070.060.070.074
Oct 20.070.060.070.074
Oct 10.070.060.070.074
Sep 300.070.060.070.072
Sep 290.070.060.070.074
Sep 280.070.060.070.072
Sep 270.070.060.070.074
Sep 260.070.060.070.074
Sep 250.070.060.070.074
Sep 240.070.060.070.074
Sep 230.070.060.070.074
Sep 220.070.060.070.074
Sep 210.070.060.070.074
Sep 200.070.060.070.074
Sep 190.070.060.070.074
Sep 180.070.060.070.074
Sep 170.070.060.070.074
Sep 160.070.060.070.072

How it reports

Schedule
every 10 minon the hour's :00 and :50
Reports received, 24 hours
4 of 1442.7% of its schedule
Reports received, 7 days
28 of 1,0082.7% of its schedule
Longest silence, 7 days
11 h 50 minfrom Oct 9, 10:00 AM
Latest report
Oct 15, 10:00 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 10 min, 144 in 24 hours. Two reports in the same 10 min count as one received.

Ranking Statistics

247 score51.4of 100

California median
91.6the median score of 4,465 stations
Scoring higher
4,436stations in California
Sharing its score
1no other station
Points deducted
48.634.0 reports received, 10.0 continuity, 2.9 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
JTTC1rank 4,436; ahead on 247 score 51.5 against 51.4
Next below
OLSC1rank 4,438; behind on 247 score 51.4 against 51.3

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 352.81.0 of 35 pointsCalifornia median 98.528 of 1,008 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 100.40.0 of 10 pointsCalifornia median 100.0longest silence 11.8 h, on a schedule of one report every 10 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 (30 min), none for 72 (12 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 Alert Streamflow/Rain Gage 1 SW Hopper Ck at HWY 29

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.