Storm Station
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At a river or reservoir gauge

DCP network, identified by the register

Identifier
GVOC1
Latitude
40.62500 N
Longitude
122.76000 W
Elevation
-
Listed
Automatically, on 165 reports in 168 hours over the last seven days
Observed
9:30 PMPDT, 1 hour ago
High so far today
81.8F
Low so far today
36.9F
Precipitation today
0in

Ranking Statistics

At a river or reservoir gauge

Drawn as the kind of place it stands at. 432 instruments in California stand at one.

Station charts

Lewiston 6SE - Grass Valley Creek Report

Rank 1,954 of 4,465 in California, Oct 16. The 247 rank orders a state's stations by their 247 score out of 100: how reliably they report, how accurate their readings are against a reference station, how their readings pass their checks, and how they stand against the forecast.

Ranking Statistics

247 score92.8of 100

California median
91.6the median score of 4,465 stations
Scoring higher
1,884stations in California
Sharing its score
108ranks 1,885 to 1,992
Points deducted
7.23.0 arrival, 2.9 accuracy, 0.8 forecast check, 0.6 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
SCMC1rank 1,953; ahead on median arrival 24 min 48 s against 24 min 49 s
Next below
AYLC1rank 1,955; behind on longest silence 90 min against 120 min

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 3598.234.4 of 35 pointsCalifornia median 98.5165 of 168 scheduled reports received in 7 days
  2. Arrivalweight 1070.47.0 of 10 pointsCalifornia median 81.2half its reports arrived within 25 min
  3. Continuityweight 10100.010.0 of 10 pointsCalifornia median 100.0longest silence 1.5 h, 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
Schedule
every houron the hour's :00
Reports received, 24 hours
19 of 2479.1% of its schedule
Reports received, 7 days
161 of 16895.8% of its schedule
Days reported, 30 days
29 of 30
Longest silence, 7 days
6 h 42 minfrom Oct 15, 4:00 PM
Latest report
Oct 15, 4:00 PMlocal time

The reports received are counted from the network's own archive of this station's reports. Its 247 rank is counted from Storm Station's own record, which holds less than 7 days of it so far: 165 of 168 scheduled reports received, 98.2%.

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

Chart of the 4,465 ranked stations in California on Oct 16 by the share of their scheduled reports received in Storm Station's own record, up to 7 days, in tenths: 0 to 9 per cent, 78; 10 to 19 per cent, 83; 20 to 29 per cent, 45; 30 to 39 per cent, 22; 40 to 49 per cent, 118; 50 to 59 per cent, 285; 60 to 69 per cent, 120; 70 to 79 per cent, 209; 80 to 89 per cent, 391; 90 to 99 per cent, 2,034; 100 per cent, 1,080. Lewiston 6SE - Grass Valley Creek received 98.2 per cent, 165 of 168 scheduled reports, rank 1,954 of 4,465.WHERE IT RANKS IN CALIFORNIA, Oct 16THIS ONE: 98.2%, 165 OF 168, RANK 1,954 OF 4,465PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101001,0000 to 97810 to 198320 to 294530 to 392240 to 4911850 to 5928560 to 6912070 to 7920980 to 8939190 to 992,0341001,080STATIONS, LOG SCALE
Chart of Lewiston 6SE - Grass Valley Creek's rank in California by how it reported, day by day, from 2026-09-26 to 2026-10-16: 2026-09-26 rank 1,388 of 3,089; 2026-09-27 rank 1,105 of 3,141; 2026-09-28 rank 1,270 of 3,395; 2026-09-29 rank 1,229 of 3,460; 2026-09-30 rank 1,042 of 3,491; 2026-10-01 rank 858 of 3,586; 2026-10-02 rank 1,901 of 3,944; 2026-10-03 rank 1,848 of 3,944; 2026-10-04 rank 1,982 of 4,072; 2026-10-05 rank 1,930 of 4,333; 2026-10-06 rank 1,923 of 4,362; 2026-10-07 rank 1,827 of 4,381; 2026-10-08 rank 1,815 of 4,405; 2026-10-09 rank 1,912 of 4,400; 2026-10-10 rank 1,915 of 4,400; 2026-10-11 rank 1,925 of 4,428; 2026-10-12 rank 1,910 of 4,446; 2026-10-13 rank 1,946 of 4,464; 2026-10-14 rank 1,925 of 4,466; 2026-10-15 rank 1,969 of 4,462; 2026-10-16 rank 1,954 of 4,465.ITS RANK IN CALIFORNIA, DAY BY DAYRANK, FIRST AT THE TOP15001,0001,5002,000Sep 26Sep 30Oct 4Oct 8Oct 12Oct 16
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%1,080
90 to 99%2,034
80 to 89%391
70 to 79%209
60 to 69%120
50 to 59%285
40 to 49%118
30 to 39%22
20 to 29%45
10 to 19%83
0 to 9%78
DayRankStations rankedShare received
Oct 16, 20261,9544,46598.2%
Oct 15, 20261,9694,46298.2%
Oct 14, 20261,9254,46697.6%
Oct 13, 20261,9464,46497.6%
Oct 12, 20261,9104,44698.2%
Oct 11, 20261,9254,42898.2%
Oct 10, 20261,9154,40098.2%
Oct 9, 20261,9124,40098.2%
Oct 8, 20261,8154,40598.2%
Oct 7, 20261,8274,38198.8%
Oct 6, 20261,9234,36298.8%
Oct 5, 20261,9304,33398.8%
Oct 4, 20261,9824,07298.8%
Oct 3, 20261,8483,94499.3%
Oct 2, 20261,9013,94499.3%
Oct 1, 20268583,586100.0%
Sep 30, 20261,0423,491100.0%
Sep 29, 20261,2293,460100.0%
Sep 28, 20261,2703,395100.0%
Sep 27, 20261,1053,141100.0%
Sep 26, 20261,3883,089100.0%
Temperature at Lewiston 6SE - Grass Valley Creek, temperature from 36.9 to 81.8, the latest 81.8, in degrees Fahrenheit.TEMPERATUREF20406080100Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMFREEZING
Battery at Lewiston 6SE - Grass Valley Creek, battery from 12.8 to 13.8, the latest 13.5, in volts.BATTERYV12.751313.2513.513.7514Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM
Reports received at Lewiston 6SE - Grass Valley Creek, reports from 0.0 to 1.0, the latest 0.0, in reports.REPORTS RECEIVEDreports00.250.50.751Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM
The readings these charts were drawn from, as a table
HourTemperature FPrecipitation inBattery VReports
Thu 15, 4 PM81.80.0013.51
Thu 15, 3 PM79.60.0013.31
Thu 15, 2 PM78.80.0013.31
Thu 15, 1 PM78.80.0013.51
Thu 15, 12 PM76.60.0013.51
Thu 15, 11 AM64.50.0013.51
Thu 15, 10 AM54.00.0013.81
Thu 15, 9 AM48.00.0013.51
Thu 15, 8 AM37.10.0013.51
Thu 15, 7 AM36.90.0012.81
Thu 15, 6 AM37.80.0012.81
Thu 15, 5 AM49.20.0012.81
Thu 15, 4 AM39.20.0012.81
Thu 15, 3 AM40.30.0012.81
Thu 15, 2 AM41.20.0012.81
Thu 15, 1 AM42.60.0012.81
Thu 15, 12 AM43.90.0012.91
Wed 14, 11 PM45.30.0012.91
Temperature at Lewiston 6SE - Grass Valley Creek, temperature from 27.7 to 88.3, the latest 81.8, in degrees Fahrenheit.TEMPERATUREF20406080100Fri 9Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15FREEZING
Battery at Lewiston 6SE - Grass Valley Creek, battery from 12.7 to 14.2, the latest 13.5, in volts.BATTERYV12.51313.51414.5Fri 9Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15
Reports received at Lewiston 6SE - Grass Valley Creek, reports from 0.0 to 1.0, the latest 0.0, in reports.REPORTS RECEIVEDreports00.250.50.751Fri 9Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15
The readings these charts were drawn from, as a table
HourTemperature FPrecipitation inBattery VReports
Thu 15, 4 PM81.80.0013.51
Thu 15, 3 PM79.60.0013.31
Thu 15, 2 PM78.80.0013.31
Thu 15, 1 PM78.80.0013.51
Thu 15, 12 PM76.60.0013.51
Thu 15, 11 AM64.50.0013.51
Thu 15, 10 AM54.00.0013.81
Thu 15, 9 AM48.00.0013.51
Thu 15, 8 AM37.10.0013.51
Thu 15, 7 AM36.90.0012.81
Thu 15, 6 AM37.80.0012.81
Thu 15, 5 AM49.20.0012.81
Thu 15, 4 AM39.20.0012.81
Thu 15, 3 AM40.30.0012.81
Thu 15, 2 AM41.20.0012.81
Thu 15, 1 AM42.60.0012.81
Thu 15, 12 AM43.90.0012.91
Wed 14, 11 PM45.30.0012.91
Wed 14, 10 PM47.00.0013.01
Wed 14, 9 PM49.10.0013.01
Wed 14, 8 PM52.00.0013.11
Wed 14, 7 PM56.10.0013.21
Wed 14, 6 PM62.70.0013.21
Wed 14, 5 PM71.10.0013.31
Wed 14, 4 PM78.80.0013.51
Wed 14, 3 PM76.20.0013.31
Wed 14, 2 PM75.40.0013.41
Wed 14, 1 PM70.70.0013.51
Wed 14, 12 PM64.80.0014.01
Wed 14, 11 AM59.40.0014.21
Wed 14, 10 AM47.80.0013.51
Wed 14, 9 AM45.20.0013.51
Wed 14, 8 AM31.20.0013.51
Wed 14, 7 AM30.60.0012.81
Wed 14, 6 AM31.20.0012.81
Wed 14, 5 AM43.00.0012.81
Wed 14, 4 AM32.50.0012.81
Wed 14, 3 AM33.40.0012.81
Wed 14, 2 AM34.10.0012.81
Wed 14, 1 AM35.10.0012.81
Wed 14, 12 AM36.50.0012.91
Tue 13, 11 PM38.00.0012.91
Tue 13, 10 PM39.80.0013.01
Tue 13, 9 PM42.00.0013.01
Tue 13, 8 PM44.90.0013.11
Tue 13, 7 PM48.70.0013.11
Tue 13, 6 PM55.40.0013.21
Tue 13, 5 PM69.00.0013.51
Tue 13, 4 PM66.70.0013.71
Tue 13, 3 PM66.40.0013.41
Tue 13, 2 PM65.40.0013.51
Tue 13, 1 PM63.40.0013.51
Tue 13, 12 PM59.70.0013.51
Tue 13, 11 AM54.20.0013.51
Tue 13, 10 AM45.40.0013.51
Tue 13, 9 AM45.70.0013.61
Tue 13, 8 AM28.80.0013.61
Tue 13, 7 AM28.10.0012.81
Tue 13, 6 AM28.80.0012.71
Tue 13, 5 AM39.80.0012.71
Tue 13, 4 AM29.70.0012.81
Tue 13, 3 AM30.20.0012.81
Tue 13, 2 AM31.10.0012.81
Tue 13, 1 AM32.10.0012.81
Tue 13, 12 AM33.50.0012.91
Mon 12, 11 PM34.80.0012.91
Mon 12, 10 PM36.70.0013.01
Mon 12, 9 PM39.30.0013.01
Mon 12, 8 PM42.60.0013.11
Mon 12, 7 PM47.50.0013.11
Mon 12, 6 PM54.90.0013.21
Mon 12, 5 PM61.70.0013.41
Mon 12, 4 PM62.70.0013.51
Mon 12, 3 PM60.50.0013.41
Mon 12, 2 PM59.40.0013.41
Mon 12, 1 PM58.60.0013.51
Mon 12, 12 PM56.70.0013.81
Mon 12, 11 AM54.80.0013.51
Mon 12, 9 AM44.90.0013.81
Mon 12, 8 AM28.00.0013.61
Mon 12, 7 AM27.70.0012.71
Mon 12, 6 AM28.10.0012.81
Mon 12, 5 AM40.50.0012.81
Mon 12, 4 AM28.90.0012.81
Mon 12, 3 AM29.90.0012.81
Mon 12, 2 AM30.80.0012.81
Mon 12, 1 AM32.20.0012.91
Mon 12, 12 AM33.50.0012.91
Sun 11, 11 PM35.20.0013.01
Sun 11, 10 PM37.90.0013.01
Sun 11, 9 PM40.90.0013.11
Sun 11, 8 PM44.50.0013.11
Sun 11, 7 PM49.20.0013.21
Sun 11, 6 PM55.30.0013.21
Sun 11, 5 PM64.30.0013.41
Sun 11, 4 PM63.10.0013.51
Sun 11, 3 PM61.70.0013.41
Sun 11, 2 PM60.60.0013.41
Sun 11, 1 PM59.90.0013.51
Sun 11, 12 PM58.00.0013.51
Sun 11, 11 AM56.90.0013.51
Sun 11, 10 AM48.10.0013.51
Sun 11, 9 AM47.00.0013.51
Sun 11, 8 AM30.90.0013.71
Sun 11, 7 AM31.40.0012.81
Sun 11, 6 AM32.70.0012.81
Sun 11, 5 AM45.90.0012.81
Sun 11, 4 AM35.70.0012.81
Sun 11, 3 AM37.80.0012.91
Sun 11, 2 AM38.00.0012.91
Sun 11, 1 AM40.00.0012.91
Sun 11, 12 AM42.30.0012.91
Sat 10, 11 PM44.30.0013.01
Sat 10, 10 PM47.60.0013.01
Sat 10, 9 PM52.00.0013.11
Sat 10, 8 PM53.30.0013.11
Sat 10, 7 PM55.10.0013.11
Sat 10, 6 PM60.60.0013.21
Sat 10, 5 PM68.10.0013.31
Sat 10, 4 PM69.30.0013.51
Sat 10, 3 PM67.50.0013.31
Sat 10, 2 PM65.80.0013.41
Sat 10, 1 PM65.10.0013.51
Sat 10, 12 PM61.60.0013.51
Sat 10, 11 AM58.60.0013.51
Sat 10, 9 AM59.40.0013.51
Sat 10, 8 AM42.20.0013.61
Sat 10, 7 AM41.10.0012.81
Sat 10, 6 AM43.30.0012.81
Sat 10, 5 AM60.50.0012.91
Sat 10, 4 AM51.20.0012.91
Sat 10, 3 AM55.50.0012.81
Sat 10, 2 AM59.30.0012.91
Sat 10, 1 AM60.90.0012.91
Sat 10, 12 AM61.50.0013.01
Fri 9, 11 PM62.50.0013.01
Fri 9, 10 PM69.00.0013.11
Fri 9, 9 PM67.10.0013.11
Fri 9, 8 PM65.70.0013.11
Fri 9, 7 PM68.90.0013.11
Fri 9, 6 PM79.20.0013.21
Fri 9, 5 PM84.80.0013.61
Fri 9, 4 PM88.30.0013.91
Fri 9, 3 PM87.60.0013.31
Fri 9, 2 PM87.40.0013.41
Fri 9, 1 PM86.40.0013.51
Fri 9, 12 PM84.40.0013.51
Fri 9, 11 AM75.80.0013.51
Fri 9, 10 AM64.30.0013.51
Fri 9, 9 AM62.30.0013.71
Fri 9, 8 AM47.90.0013.51
Fri 9, 7 AM47.50.0012.81
Fri 9, 6 AM48.70.0012.81
Fri 9, 5 AM63.50.0012.81
Fri 9, 4 AM50.50.0012.91
Fri 9, 3 AM52.00.0012.91
Fri 9, 2 AM52.40.0012.91
Fri 9, 1 AM53.90.0013.01
Fri 9, 12 AM55.50.0013.01
Thu 8, 11 PM56.60.0013.01
High and Low at Lewiston 6SE - Grass Valley Creek, high from 62.7 to 94.4, the latest 81.8; low from 27.7 to 47.5, the latest 36.9, in degrees Fahrenheit.HIGH AND LOWF20406080100Sep 17Sep 22Sep 27Oct 2Oct 7Oct 12FREEZINGHIGHLOW
The readings these charts were drawn from, as a table
DayHigh FLow FPrecipitation in
Oct 1581.836.90.00
Oct 1478.830.60.00
Oct 1369.028.10.00
Oct 1262.727.70.00
Oct 1164.330.90.00
Oct 1069.341.10.00
Oct 988.347.50.00
Oct 894.446.40.00
Oct 791.246.40.00
Oct 692.347.00.00
Oct 589.547.20.00
Oct 482.546.00.00
Oct 391.144.90.00
Oct 287.446.60.00
Oct 189.142.60.00
Sep 3088.640.60.00
Sep 2982.940.00.00
Sep 2878.137.40.00
Sep 2774.336.00.00
Sep 2676.038.40.00
Sep 2573.546.50.00
Sep 2486.043.00.00
Sep 2385.542.00.00
Sep 2282.246.50.00
Sep 2190.347.20.00
Sep 2085.844.80.00
Sep 1984.842.60.00
Sep 1883.241.80.00
Sep 1773.442.50.00

Near Lewiston 6SE - Grass Valley Creek