Storm Station
Sign in

Live/Water/California/USGS Stream Gage at San Gregorio C A San Gregorio

USGS Stream Gage at San Gregorio C A San Gregorio

A gauge on the USGS Stream in San Mateo County, California. Its stage was 3.65 ft as of Oct 15, 8:15 PM PDT.

Gauge SXGC1San Mateo County, CaliforniaEvery gauge in California

Stage now
3.65 ftreported Oct 15, 8:15 PM PDT
24 hour change
Fell 0.02 ftsince Oct 14, 8:15 PM
Elevation
56 ftabove sea level
County
San Mateo County
Position
37.3258° N, 122.3856° W
Record since
2010

Water level

USGS Stream Gage at San Gregorio C A San Gregorio

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 Gregorio C A San Gregorio: the water from 3.65 to 3.68 feet of stage, the latest 3.65 feet.WATER LEVEL, 24 HOURSFTHIGH 3.68 FT, OCT 14, 9:15 PM · LOW 3.65 FT, OCT 15, 1:45 PM3.603.633.653.673.703.739 PMOct 153 AM6 AM9 AM12 PM3 PM6 PM3.65
Latest
3.65 ftOct 15, 8:15 PM
Highest
3.68 ftOct 14, 9:15 PM
Lowest
3.65 ftOct 15, 1:45 PM
Range
0.03 fthighest less lowest
Change
Fell 0.02 ftsince Oct 14, 8:45 PM
Readings
95
The readings these charts were drawn from, as a table
TimeStage ft
Oct 15, 8:15 PM3.65
Oct 15, 8:00 PM3.65
Oct 15, 7:45 PM3.65
Oct 15, 7:30 PM3.65
Oct 15, 7:15 PM3.65
Oct 15, 7:00 PM3.65
Oct 15, 6:45 PM3.65
Oct 15, 6:30 PM3.65
Oct 15, 6:15 PM3.65
Oct 15, 6:00 PM3.65
Oct 15, 5:45 PM3.65
Oct 15, 5:30 PM3.65
Oct 15, 5:15 PM3.65
Oct 15, 5:00 PM3.65
Oct 15, 4:45 PM3.65
Oct 15, 4:30 PM3.65
Oct 15, 4:15 PM3.65
Oct 15, 4:00 PM3.65
Oct 15, 3:45 PM3.65
Oct 15, 3:30 PM3.65
Oct 15, 3:15 PM3.65
Oct 15, 3:00 PM3.65
Oct 15, 2:45 PM3.65
Oct 15, 2:30 PM3.65
Oct 15, 2:15 PM3.65
Oct 15, 2:00 PM3.65
Oct 15, 1:45 PM3.65
Oct 15, 1:30 PM3.66
Oct 15, 1:15 PM3.66
Oct 15, 1:00 PM3.66
Oct 15, 12:45 PM3.66
Oct 15, 12:30 PM3.66
Oct 15, 12:15 PM3.66
Oct 15, 12:00 PM3.67
Oct 15, 11:45 AM3.67
Oct 15, 11:30 AM3.67
Oct 15, 11:15 AM3.67
Oct 15, 11:00 AM3.67
Oct 15, 10:45 AM3.67
Oct 15, 10:30 AM3.67
Oct 15, 10:15 AM3.67
Oct 15, 10:00 AM3.67
Oct 15, 9:45 AM3.67
Oct 15, 9:30 AM3.67
Oct 15, 9:15 AM3.68
Oct 15, 9:00 AM3.68
Oct 15, 8:45 AM3.68
Oct 15, 8:30 AM3.68
Oct 15, 8:15 AM3.68
Oct 15, 8:00 AM3.68
Oct 15, 7:45 AM3.68
Oct 15, 7:30 AM3.68
Oct 15, 7:15 AM3.68
Oct 15, 7:00 AM3.68
Oct 15, 6:45 AM3.68
Oct 15, 6:30 AM3.68
Oct 15, 6:15 AM3.68
Oct 15, 6:00 AM3.68
Oct 15, 5:45 AM3.68
Oct 15, 5:30 AM3.68
Oct 15, 5:15 AM3.68
Oct 15, 5:00 AM3.68
Oct 15, 4:45 AM3.68
Oct 15, 4:30 AM3.68
Oct 15, 4:15 AM3.68
Oct 15, 4:00 AM3.68
Oct 15, 3:45 AM3.68
Oct 15, 3:30 AM3.68
Oct 15, 3:15 AM3.68
Oct 15, 3:00 AM3.68
Oct 15, 2:45 AM3.68
Oct 15, 2:30 AM3.68
Oct 15, 2:15 AM3.68
Oct 15, 2:00 AM3.68
Oct 15, 1:45 AM3.68
Oct 15, 1:30 AM3.68
Oct 15, 1:15 AM3.68
Oct 15, 1:00 AM3.68
Oct 15, 12:45 AM3.68
Oct 15, 12:30 AM3.68
Oct 15, 12:15 AM3.68
Oct 15, 12:00 AM3.68
Oct 14, 11:45 PM3.68
Oct 14, 11:30 PM3.68
Oct 14, 11:15 PM3.68
Oct 14, 11:00 PM3.68
Oct 14, 10:45 PM3.68
Oct 14, 10:30 PM3.67
Oct 14, 10:15 PM3.68
Oct 14, 10:00 PM3.67
Oct 14, 9:45 PM3.67
Oct 14, 9:30 PM3.67
Oct 14, 9:15 PM3.68
Oct 14, 9:00 PM3.67
Oct 14, 8:45 PM3.67
Water level, 7 days at USGS Stream Gage at San Gregorio C A San Gregorio: the water from 3.65 to 3.70 feet of stage, the latest 3.65 feet.WATER LEVEL, 7 DAYSFTHIGH 3.70 FT, OCT 12, 12:45 AM · LOW 3.65 FT, OCT 15, 1:45 PM3.643.663.683.703.72Fri 9Sat 10Sun 11Mon 12Tue 13Wed 14Thu 153.65
Latest
3.65 ftOct 15, 8:15 PM
Highest
3.70 ftOct 12, 12:45 AM
Lowest
3.65 ftOct 15, 1:45 PM
Range
0.05 fthighest less lowest
Change
Fell 0.03 ftsince Oct 8, 8:45 PM
Readings
663
The readings these charts were drawn from, as a table
TimeStage ft
Oct 15, 8:15 PM3.65
Oct 15, 7:45 PM3.65
Oct 15, 6:45 PM3.65
Oct 15, 5:45 PM3.65
Oct 15, 4:45 PM3.65
Oct 15, 3:45 PM3.65
Oct 15, 2:45 PM3.65
Oct 15, 1:45 PM3.65
Oct 15, 12:45 PM3.66
Oct 15, 11:45 AM3.67
Oct 15, 10:45 AM3.67
Oct 15, 9:45 AM3.67
Oct 15, 8:45 AM3.68
Oct 15, 7:45 AM3.68
Oct 15, 6:45 AM3.68
Oct 15, 5:45 AM3.68
Oct 15, 4:45 AM3.68
Oct 15, 3:45 AM3.68
Oct 15, 2:45 AM3.68
Oct 15, 1:45 AM3.68
Oct 15, 12:45 AM3.68
Oct 14, 11:45 PM3.68
Oct 14, 10:45 PM3.68
Oct 14, 9:45 PM3.67
Oct 14, 8:45 PM3.67
Oct 14, 7:45 PM3.67
Oct 14, 6:45 PM3.67
Oct 14, 5:45 PM3.67
Oct 14, 4:45 PM3.67
Oct 14, 3:45 PM3.67
Oct 14, 2:45 PM3.67
Oct 14, 1:45 PM3.67
Oct 14, 12:45 PM3.67
Oct 14, 11:45 AM3.67
Oct 14, 10:45 AM3.68
Oct 14, 9:45 AM3.69
Oct 14, 8:45 AM3.69
Oct 14, 7:45 AM3.69
Oct 14, 6:45 AM3.69
Oct 14, 5:45 AM3.69
Oct 14, 4:45 AM3.69
Oct 14, 3:45 AM3.69
Oct 14, 2:45 AM3.69
Oct 14, 1:45 AM3.69
Oct 14, 12:45 AM3.69
Oct 13, 11:45 PM3.69
Oct 13, 10:45 PM3.68
Oct 13, 9:45 PM3.68
Oct 13, 8:45 PM3.68
Oct 13, 7:45 PM3.68
Oct 13, 6:45 PM3.68
Oct 13, 5:15 PM3.68
Oct 13, 4:45 PM3.68
Oct 13, 3:45 PM3.68
Oct 13, 2:45 PM3.68
Oct 13, 1:45 PM3.68
Oct 13, 12:45 PM3.69
Oct 13, 11:45 AM3.69
Oct 13, 10:45 AM3.70
Oct 13, 9:45 AM3.70
Oct 13, 8:45 AM3.70
Oct 13, 7:45 AM3.70
Oct 13, 6:45 AM3.70
Oct 13, 5:45 AM3.70
Oct 13, 4:45 AM3.70
Oct 13, 3:45 AM3.70
Oct 13, 2:45 AM3.70
Oct 13, 1:45 AM3.70
Oct 13, 12:45 AM3.70
Oct 12, 11:45 PM3.70
Oct 12, 10:45 PM3.70
Oct 12, 9:45 PM3.69
Oct 12, 8:45 PM3.69
Oct 12, 7:45 PM3.69
Oct 12, 6:45 PM3.68
Oct 12, 5:45 PM3.68
Oct 12, 4:45 PM3.68
Oct 12, 3:45 PM3.68
Oct 12, 2:45 PM3.68
Oct 12, 1:45 PM3.68
Oct 12, 12:45 PM3.68
Oct 12, 11:45 AM3.69
Oct 12, 10:45 AM3.69
Oct 12, 9:45 AM3.70
Oct 12, 8:45 AM3.70
Oct 12, 7:45 AM3.70
Oct 12, 6:45 AM3.70
Oct 12, 5:45 AM3.70
Oct 12, 4:45 AM3.70
Oct 12, 3:45 AM3.70
Oct 12, 2:45 AM3.70
Oct 12, 1:45 AM3.70
Oct 12, 12:45 AM3.70
Oct 11, 11:45 PM3.69
Oct 11, 10:45 PM3.69
Oct 11, 9:45 PM3.69
Oct 11, 8:45 PM3.69
Oct 11, 7:45 PM3.69
Oct 11, 6:45 PM3.68
Oct 11, 5:45 PM3.68
Oct 11, 4:45 PM3.67
Oct 11, 3:45 PM3.67
Oct 11, 2:45 PM3.67
Oct 11, 1:45 PM3.67
Oct 11, 12:45 PM3.68
Oct 11, 11:45 AM3.68
Oct 11, 10:45 AM3.69
Oct 11, 9:45 AM3.69
Oct 11, 8:45 AM3.69
Oct 11, 7:45 AM3.69
Oct 11, 6:45 AM3.69
Oct 11, 5:45 AM3.69
Oct 11, 4:45 AM3.68
Oct 11, 3:45 AM3.68
Oct 11, 2:45 AM3.69
Oct 11, 1:45 AM3.69
Oct 11, 12:45 AM3.68
Oct 10, 11:45 PM3.68
Oct 10, 10:45 PM3.68
Oct 10, 9:45 PM3.68
Oct 10, 8:45 PM3.68
Oct 10, 7:45 PM3.68
Oct 10, 6:45 PM3.68
Oct 10, 5:45 PM3.67
Oct 10, 4:45 PM3.67
Oct 10, 3:45 PM3.67
Oct 10, 2:45 PM3.67
Oct 10, 1:45 PM3.67
Oct 10, 12:45 PM3.68
Oct 10, 11:45 AM3.68
Oct 10, 10:45 AM3.69
Oct 10, 9:45 AM3.69
Oct 10, 8:45 AM3.69
Oct 10, 7:45 AM3.69
Oct 10, 6:45 AM3.69
Oct 10, 5:45 AM3.69
Oct 10, 4:45 AM3.69
Oct 10, 3:45 AM3.69
Oct 10, 2:45 AM3.69
Oct 10, 1:45 AM3.69
Oct 10, 12:45 AM3.69
Oct 9, 11:45 PM3.69
Oct 9, 10:45 PM3.69
Oct 9, 9:15 PM3.68
Oct 9, 8:45 PM3.68
Oct 9, 7:45 PM3.68
Oct 9, 6:45 PM3.68
Oct 9, 5:45 PM3.67
Oct 9, 4:45 PM3.67
Oct 9, 3:45 PM3.68
Oct 9, 2:45 PM3.67
Oct 9, 1:45 PM3.68
Oct 9, 12:45 PM3.68
Oct 9, 11:45 AM3.68
Oct 9, 10:45 AM3.68
Oct 9, 9:45 AM3.68
Oct 9, 8:45 AM3.68
Oct 9, 7:45 AM3.68
Oct 9, 6:45 AM3.68
Oct 9, 5:45 AM3.68
Oct 9, 4:45 AM3.67
Oct 9, 3:45 AM3.68
Oct 9, 2:45 AM3.68
Oct 9, 1:45 AM3.68
Oct 9, 12:45 AM3.68
Oct 8, 11:45 PM3.68
Oct 8, 10:45 PM3.68
Oct 8, 9:45 PM3.68
Oct 8, 8:45 PM3.68
Water level, 30 days at USGS Stream Gage at San Gregorio C A San Gregorio: the water from 3.65 to 3.76 feet of stage, the latest 3.65 feet.WATER LEVEL, 30 DAYSFTHIGH 3.76 FT, SEP 22, 10:15 AM · LOW 3.65 FT, OCT 15, 1:45 PM3.653.703.753.80Sep 16Sep 21Sep 26Oct 1Oct 6Oct 113.65
Latest
3.65 ftOct 15, 8:15 PM
Highest
3.76 ftSep 22, 10:15 AM
Lowest
3.65 ftOct 15, 1:45 PM
Range
0.11 fthighest less lowest
Change
Fell 0.04 ftsince Sep 15, 8:45 PM
Readings
2,739
The readings these charts were drawn from, as a table
DayHigh ftLow ftAverage ftLast ftReadings
Oct 153.683.653.673.6582
Oct 143.693.673.683.6896
Oct 133.703.683.693.6992
Oct 123.703.683.693.7096
Oct 113.693.673.683.6996
Oct 103.693.673.683.6896
Oct 93.693.673.683.6992
Oct 83.683.663.683.6896
Oct 73.693.673.683.6896
Oct 63.693.663.683.6996
Oct 53.703.673.683.6996
Oct 43.713.693.703.7096
Oct 33.723.693.713.7092
Oct 23.723.693.703.7196
Oct 13.723.703.713.7196
Sep 303.723.703.713.7196
Sep 293.733.713.723.7292
Sep 283.723.703.723.7292
Sep 273.723.713.723.7292
Sep 263.723.703.713.7266
Sep 253.733.713.723.7266
Sep 243.753.723.743.7288
Sep 233.763.733.753.7592
Sep 223.763.733.753.7692
Sep 213.743.713.733.7388
Sep 203.723.703.713.7188
Sep 193.713.703.713.7084
Sep 183.703.693.703.7088
Sep 173.703.693.693.6996
Sep 163.703.693.693.6992
Sep 153.693.693.693.6913

How it reports

Schedule
every houron the hour's :15
Reports received, 24 hours
24 of 24100% of its schedule
Reports received, 7 days
165 of 16898.2% of its schedule
Longest silence, 7 days
2 hoursfrom Oct 9, 9:15 PM
Latest report
Oct 15, 8:15 PMlocal 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 hour, 24 in 24 hours. Two reports in the same hour count as one received.

Ranking Statistics

247 score93.9of 100

California median
91.6the median score of 4,465 stations
Scoring higher
1,361stations in California
Sharing its score
54ranks 1,362 to 1,415
Points deducted
6.12.9 accuracy, 1.9 arrival, 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
UTRC1rank 1,379; ahead on reports due 672 against 168, the longer record first
Next below
DSOC1rank 1,398; behind on reports received 98.2% against 92.8%
Sharing its rank
17other stations, equal on every measure

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 1081.28.1 of 10 pointsCalifornia median 81.2half its reports arrived within 19 min
  3. Continuityweight 10100.010.0 of 10 pointsCalifornia median 100.0longest silence 2 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 USGS Stream Gage at San Gregorio C A San Gregorio

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.