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Live/Water/California/Lake Arrowhead - Grass Valley Tunnel

Lake Arrowhead - Grass Valley Tunnel

A gauge on the Lake in San Bernardino County, California. Its stage was 1.07 ft as of Oct 16, 3:15 AM PDT.

Gauge GVVC1San Bernardino County, CaliforniaEvery gauge in California

Stage now
1.07 ftreported Oct 16, 3:15 AM PDT
24 hour change
Rose 0.05 ftsince Oct 15, 3:15 AM
Elevation
5,194 ftabove sea level
County
San Bernardino County
Position
34.2600° N, 117.2044° W
Record since
2013

Water level

Lake Arrowhead - Grass Valley Tunnel

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 Lake Arrowhead - Grass Valley Tunnel: the water from 1.02 to 1.08 feet of stage, the latest 1.07 feet.WATER LEVEL, 24 HOURSFTHIGH 1.08 FT, OCT 15, 4:15 PM · LOW 1.02 FT, OCT 15, 4:30 AM1.021.041.061.081.106 AM9 AM12 PM3 PM6 PM9 PMOct 163 AM1.07
Latest
1.07 ftOct 16, 3:15 AM
Highest
1.08 ftOct 15, 4:15 PM
Lowest
1.02 ftOct 15, 4:30 AM
Range
0.06 fthighest less lowest
Change
Rose 0.04 ftsince Oct 15, 4:00 AM
Readings
94
The readings these charts were drawn from, as a table
TimeStage ft
Oct 16, 3:15 AM1.07
Oct 16, 3:00 AM1.06
Oct 16, 2:45 AM1.07
Oct 16, 2:30 AM1.06
Oct 16, 2:15 AM1.07
Oct 16, 2:00 AM1.07
Oct 16, 1:45 AM1.07
Oct 16, 1:30 AM1.06
Oct 16, 1:15 AM1.06
Oct 16, 1:00 AM1.06
Oct 16, 12:45 AM1.06
Oct 16, 12:30 AM1.07
Oct 16, 12:15 AM1.06
Oct 16, 12:00 AM1.07
Oct 15, 11:45 PM1.06
Oct 15, 11:30 PM1.06
Oct 15, 11:15 PM1.06
Oct 15, 11:00 PM1.07
Oct 15, 10:45 PM1.06
Oct 15, 10:30 PM1.07
Oct 15, 10:15 PM1.06
Oct 15, 10:00 PM1.06
Oct 15, 9:45 PM1.07
Oct 15, 9:30 PM1.07
Oct 15, 9:15 PM1.07
Oct 15, 9:00 PM1.07
Oct 15, 8:45 PM1.07
Oct 15, 8:30 PM1.07
Oct 15, 8:15 PM1.07
Oct 15, 8:00 PM1.06
Oct 15, 7:45 PM1.06
Oct 15, 7:30 PM1.06
Oct 15, 7:15 PM1.07
Oct 15, 7:00 PM1.07
Oct 15, 6:45 PM1.07
Oct 15, 6:30 PM1.07
Oct 15, 6:15 PM1.07
Oct 15, 6:00 PM1.08
Oct 15, 5:45 PM1.07
Oct 15, 5:30 PM1.06
Oct 15, 5:15 PM1.08
Oct 15, 5:00 PM1.06
Oct 15, 4:45 PM1.07
Oct 15, 4:30 PM1.06
Oct 15, 4:15 PM1.08
Oct 15, 4:00 PM1.07
Oct 15, 3:45 PM1.06
Oct 15, 3:30 PM1.06
Oct 15, 3:15 PM1.07
Oct 15, 3:00 PM1.07
Oct 15, 2:45 PM1.07
Oct 15, 2:30 PM1.07
Oct 15, 2:15 PM1.06
Oct 15, 2:00 PM1.06
Oct 15, 1:45 PM1.06
Oct 15, 1:30 PM1.06
Oct 15, 1:15 PM1.06
Oct 15, 1:00 PM1.06
Oct 15, 12:45 PM1.06
Oct 15, 12:30 PM1.05
Oct 15, 12:15 PM1.06
Oct 15, 12:00 PM1.05
Oct 15, 11:45 AM1.05
Oct 15, 11:30 AM1.05
Oct 15, 11:15 AM1.05
Oct 15, 11:00 AM1.05
Oct 15, 10:45 AM1.05
Oct 15, 10:30 AM1.04
Oct 15, 10:15 AM1.05
Oct 15, 10:00 AM1.04
Oct 15, 9:45 AM1.04
Oct 15, 9:30 AM1.03
Oct 15, 9:15 AM1.04
Oct 15, 9:00 AM1.03
Oct 15, 8:45 AM1.03
Oct 15, 8:30 AM1.02
Oct 15, 8:15 AM1.02
Oct 15, 8:00 AM1.02
Oct 15, 7:45 AM1.02
Oct 15, 7:30 AM1.02
Oct 15, 7:15 AM1.02
Oct 15, 7:00 AM1.02
Oct 15, 6:45 AM1.03
Oct 15, 6:30 AM1.02
Oct 15, 6:15 AM1.03
Oct 15, 6:00 AM1.02
Oct 15, 5:45 AM1.02
Oct 15, 5:30 AM1.02
Oct 15, 5:15 AM1.02
Oct 15, 5:00 AM1.02
Oct 15, 4:45 AM1.02
Oct 15, 4:30 AM1.02
Oct 15, 4:15 AM1.03
Oct 15, 4:00 AM1.03
Water level, 7 days at Lake Arrowhead - Grass Valley Tunnel: the water from 0.84 to 1.32 feet of stage, the latest 1.07 feet.WATER LEVEL, 7 DAYSFTHIGH 1.32 FT, OCT 12, 3:30 AM · LOW 0.84 FT, OCT 9, 4:45 AM0.81.01.21.4Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Fri 161.07
Latest
1.07 ftOct 16, 3:15 AM
Highest
1.32 ftOct 12, 3:30 AM
Lowest
0.84 ftOct 9, 4:45 AM
Range
0.48 fthighest less lowest
Change
Rose 0.22 ftsince Oct 9, 4:00 AM
Readings
638
The readings these charts were drawn from, as a table
TimeStage ft
Oct 16, 3:15 AM1.07
Oct 16, 2:45 AM1.07
Oct 16, 1:45 AM1.07
Oct 16, 12:45 AM1.06
Oct 15, 11:45 PM1.06
Oct 15, 10:45 PM1.06
Oct 15, 9:45 PM1.07
Oct 15, 8:45 PM1.07
Oct 15, 7:45 PM1.06
Oct 15, 6:45 PM1.07
Oct 15, 5:45 PM1.07
Oct 15, 4:45 PM1.07
Oct 15, 3:45 PM1.06
Oct 15, 2:45 PM1.07
Oct 15, 1:45 PM1.06
Oct 15, 12:45 PM1.06
Oct 15, 11:45 AM1.05
Oct 15, 10:45 AM1.05
Oct 15, 9:45 AM1.04
Oct 15, 8:45 AM1.03
Oct 15, 7:45 AM1.02
Oct 15, 6:45 AM1.03
Oct 15, 5:45 AM1.02
Oct 15, 4:45 AM1.02
Oct 15, 3:45 AM1.02
Oct 15, 2:45 AM1.02
Oct 15, 1:45 AM1.03
Oct 15, 12:45 AM1.03
Oct 14, 11:45 PM1.02
Oct 14, 10:45 PM1.03
Oct 14, 9:45 PM1.02
Oct 14, 8:45 PM1.02
Oct 14, 7:45 PM1.02
Oct 14, 6:45 PM1.03
Oct 14, 5:45 PM1.03
Oct 14, 4:45 PM1.03
Oct 14, 3:45 PM1.03
Oct 14, 2:45 PM1.03
Oct 14, 1:45 PM1.03
Oct 14, 12:45 PM1.03
Oct 14, 11:45 AM1.04
Oct 14, 10:45 AM1.03
Oct 14, 9:45 AM1.04
Oct 14, 8:45 AM1.04
Oct 14, 7:45 AM1.04
Oct 14, 6:45 AM1.04
Oct 14, 5:45 AM1.05
Oct 14, 4:45 AM1.05
Oct 14, 3:45 AM1.05
Oct 14, 2:45 AM1.05
Oct 14, 1:45 AM1.05
Oct 14, 12:45 AM1.04
Oct 13, 11:45 PM1.05
Oct 13, 10:15 PM1.06
Oct 13, 9:45 PM1.06
Oct 13, 8:45 PM1.06
Oct 13, 7:45 PM1.06
Oct 13, 6:45 PM1.05
Oct 13, 5:45 PM1.05
Oct 13, 4:45 PM1.06
Oct 13, 3:45 PM1.06
Oct 13, 2:45 PM1.07
Oct 13, 1:45 PM1.06
Oct 13, 12:45 PM1.07
Oct 13, 11:45 AM1.07
Oct 13, 10:45 AM1.08
Oct 13, 9:45 AM1.06
Oct 13, 8:45 AM1.07
Oct 13, 7:45 AM1.07
Oct 13, 6:45 AM1.07
Oct 13, 5:45 AM1.08
Oct 13, 4:45 AM1.07
Oct 13, 3:45 AM1.07
Oct 13, 2:15 AM1.09
Oct 13, 1:45 AM1.08
Oct 13, 12:45 AM1.10
Oct 12, 11:45 PM1.09
Oct 12, 10:45 PM1.08
Oct 12, 9:45 PM1.08
Oct 12, 8:45 PM1.10
Oct 12, 7:45 PM1.11
Oct 12, 6:45 PM1.11
Oct 12, 5:45 PM1.11
Oct 12, 4:45 PM1.11
Oct 12, 3:45 PM1.12
Oct 12, 2:45 PM1.14
Oct 12, 1:45 PM1.16
Oct 12, 12:45 PM1.23
Oct 12, 11:45 AM1.19
Oct 12, 10:45 AM1.08
Oct 12, 9:45 AM0.95
Oct 12, 8:15 AM1.19
Oct 12, 7:45 AM1.24
Oct 12, 6:45 AM1.29
Oct 12, 5:45 AM1.12
Oct 12, 4:15 AM1.13
Oct 12, 3:45 AM1.27
Oct 12, 2:45 AM1.17
Oct 12, 1:45 AM1.13
Oct 12, 12:45 AM1.06
Oct 11, 11:45 PM1.11
Oct 11, 10:45 PM1.08
Oct 11, 9:45 PM0.94
Oct 11, 7:15 PM1.01
Oct 11, 6:45 PM0.98
Oct 11, 5:45 PM1.05
Oct 11, 4:45 PM1.12
Oct 11, 3:45 PM0.98
Oct 11, 2:45 PM1.02
Oct 11, 1:45 PM1.14
Oct 11, 12:45 PM1.27
Oct 11, 11:45 AM1.13
Oct 11, 10:45 AM0.98
Oct 11, 9:45 AM1.13
Oct 11, 8:45 AM1.25
Oct 11, 7:45 AM1.21
Oct 11, 6:45 AM1.03
Oct 11, 5:45 AM0.98
Oct 11, 4:45 AM0.96
Oct 11, 3:45 AM0.93
Oct 11, 2:45 AM0.96
Oct 11, 1:45 AM1.01
Oct 11, 12:45 AM0.94
Oct 10, 11:15 PM0.92
Oct 10, 10:45 PM0.88
Oct 10, 9:45 PM0.93
Oct 10, 8:45 PM0.85
Oct 10, 7:45 PM0.85
Oct 10, 6:45 PM0.85
Oct 10, 5:45 PM0.85
Oct 10, 4:45 PM0.85
Oct 10, 3:45 PM0.85
Oct 10, 2:45 PM0.85
Oct 10, 1:45 PM0.85
Oct 10, 12:45 PM0.85
Oct 10, 11:45 AM0.84
Oct 10, 10:45 AM0.85
Oct 10, 9:45 AM0.85
Oct 10, 8:45 AM0.85
Oct 10, 7:45 AM0.85
Oct 10, 6:45 AM0.85
Oct 10, 5:45 AM0.85
Oct 10, 4:45 AM0.85
Oct 10, 3:45 AM0.85
Oct 10, 2:45 AM0.85
Oct 10, 1:45 AM0.84
Oct 10, 12:45 AM0.84
Oct 9, 11:45 PM0.84
Oct 9, 10:45 PM0.85
Oct 9, 9:45 PM0.85
Oct 9, 8:45 PM0.85
Oct 9, 7:45 PM0.85
Oct 9, 6:45 PM0.85
Oct 9, 5:15 PM0.84
Oct 9, 4:45 PM0.85
Oct 9, 3:45 PM0.84
Oct 9, 2:45 PM0.85
Oct 9, 1:45 PM0.85
Oct 9, 12:45 PM0.85
Oct 9, 11:45 AM0.85
Oct 9, 10:45 AM0.85
Oct 9, 9:45 AM0.85
Oct 9, 8:45 AM0.84
Oct 9, 7:45 AM0.85
Oct 9, 6:45 AM0.85
Oct 9, 5:45 AM0.85
Oct 9, 4:45 AM0.84
Water level, 30 days at Lake Arrowhead - Grass Valley Tunnel: the water from 0.83 to 1.32 feet of stage, the latest 1.07 feet.WATER LEVEL, 30 DAYSFTHIGH 1.32 FT, OCT 12, 3:30 AM · LOW 0.83 FT, OCT 3, 8:00 AM0.81.01.21.4Sep 16Sep 21Sep 26Oct 1Oct 6Oct 111.07
Latest
1.07 ftOct 16, 3:15 AM
Highest
1.32 ftOct 12, 3:30 AM
Lowest
0.83 ftOct 3, 8:00 AM
Range
0.49 fthighest less lowest
Change
Rose 0.22 ftsince Sep 16, 4:00 AM
Readings
2,786
The readings these charts were drawn from, as a table
DayHigh ftLow ftAverage ftLast ftReadings
Oct 161.071.061.071.0714
Oct 151.081.021.051.0696
Oct 141.061.021.041.0296
Oct 131.101.051.071.0588
Oct 121.320.941.131.0988
Oct 111.300.911.051.1186
Oct 100.930.840.850.9294
Oct 90.850.840.850.8492
Oct 80.850.840.850.8592
Oct 70.850.840.850.8592
Oct 60.850.840.850.8596
Oct 50.850.840.850.8596
Oct 40.850.830.840.8496
Oct 30.860.830.840.8496
Oct 20.860.840.850.8592
Oct 10.860.840.850.8592
Sep 300.860.840.850.8596
Sep 290.860.840.850.8596
Sep 280.860.840.850.8596
Sep 270.860.840.850.8596
Sep 260.860.840.850.8592
Sep 250.860.850.850.8596
Sep 240.860.850.860.8592
Sep 230.860.850.860.8696
Sep 220.860.850.850.8592
Sep 210.860.840.850.8596
Sep 200.860.850.850.8590
Sep 190.880.850.860.8678
Sep 180.870.850.860.8696
Sep 170.860.850.860.8688
Sep 160.860.850.850.8680

How it reports

Schedule
every houron the hour's :15
Reports received, 24 hours
23 of 2495.8% of its schedule
Reports received, 7 days
158 of 16894.0% of its schedule
Longest silence, 7 days
3 hoursfrom Oct 11, 7:15 PM
Latest report
Oct 16, 12:15 AMlocal time
Time to reach Storm Station
20 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 hour, 24 in 24 hours. Two reports in the same hour count as one received.

Ranking Statistics

247 score92.3of 100

California median
91.6the median score of 4,465 stations
Scoring higher
2,080stations in California
Sharing its score
8ranks 2,081 to 2,088
Points deducted
7.72.9 accuracy, 2.1 reports received, 2.0 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
9L2rank 2,087; ahead on reports received 95.2% against 94.0%
Next below
FWSC1rank 2,089; behind on 247 score 92.3 against 92.2

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 3594.032.9 of 35 pointsCalifornia median 98.5158 of 168 scheduled reports received in 7 days
  2. Arrivalweight 1080.48.0 of 10 pointsCalifornia median 81.2half its reports arrived within 20 min
  3. Continuityweight 10100.010.0 of 10 pointsCalifornia median 100.0longest silence 3 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

Near Lake Arrowhead - Grass Valley Tunnel

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.