- Stage now
- -
- 24 hour change
- -
- Elevation
- 374 ftabove sea level
- County
- Placer County
- Position
- 38.7573° N, 121.1639° W
- Record since
- 2026
Water level
Granit Bay 1S
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.
How it reports
- Schedule
- every 10 h 16 min
- Reports received, 24 hours
- 0 of 20.0% of its schedule
- Reports received, 7 days
- 9 of 1656.2% of its schedule, 13 reports in all
- Longest silence, 7 days
- 2 days 6 hoursfrom Oct 13, 2:13 PM
- Latest report
- Oct 13, 2:13 PMlocal time
- Time to reach Storm Station
- 17 min9 in 10 within 21 min
From Storm Station's own record of every report it heard from this station.
Its schedule is one report every 10 h 16 min, 2 in 24 hours. Two reports in the same 10 h 16 min count as one received.
Ranking Statistics
247 score79.5of 100
- California median
- 91.6the median score of 4,465 stations
- Scoring higher
- 3,650stations in California
- Sharing its score
- 9ranks 3,651 to 3,659
- Points deducted
- 20.515.3 reports received, 2.9 accuracy, 1.6 continuity, 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
- CF082rank 3,656; ahead on reports received 69.0% against 56.2%
- Next below
- DW3588rank 3,658; behind on reports received 56.2% against 54.1%
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.
- Reports receivedweight 3556.319.7 of 35 pointsCalifornia median 98.59 of 16 scheduled reports received in 7 days
- Arrivalweight 10100.010.0 of 10 pointsCalifornia median 81.2half its reports arrived within 17 min
- Continuityweight 1084.38.4 of 10 pointsCalifornia median 100.0longest silence 2.1 days, on a schedule of one report every 10.3 h
- Accuracyweight 20-17.1 of 20 points, at the medianCalifornia median 85.6-
- Instrument checksweight 15-15.0 of 15 points, at the medianCalifornia median 100.0-
- 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 62 min, none at 10.3 h
- Continuity
- Full marks for a longest silence of 3 reports or less (30.8 h), none for 72 (739.2 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 Granit Bay 1S
Gauges
Weather instruments
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.