Storm Station

Live/Water/California/USGS Stream Gage at Pilarcitos C A Half Moon Bay

USGS Stream Gage at Pilarcitos C A Half Moon Bay

A gauge on the USGS Stream in San Mateo County, California. Its stage was 2.80 ft as of Sep 27, 12:00 AM PDT.

Gauge HMNC1San Mateo County, CaliforniaEvery gauge in California

Stage now
2.80 ftreported Sep 27, 12:00 AM PDT
24 hour change
Rose 0.05 ftsince Sep 26, 12:00 AM
Rank
1,255of 3,115 in California, Sep 27
Elevation
49 ftabove sea level
County
San Mateo County
Position
37.4667° N, 122.4331° W
Record since
2010

Water level

USGS Stream Gage at Pilarcitos C A Half Moon Bay

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 Pilarcitos C A Half Moon Bay: the water from 2.74 to 2.89 feet of stage, the latest 2.80 feet.WATER LEVEL, 24 HOURSFTHIGH 2.89 FT, SEP 26, 3:00 PM · LOW 2.74 FT, SEP 26, 12:45 AM2.702.752.802.852.902.953 AM6 AM9 AM12 PM3 PM6 PM9 PMSep 272.80
Latest
2.80 ftSep 27, 12:00 AM
Highest
2.89 ftSep 26, 3:00 PM
Lowest
2.74 ftSep 26, 12:45 AM
Range
0.15 fthighest less lowest
Change
Rose 0.06 ftsince Sep 26, 12:45 AM
Readings
94
The readings these charts were drawn from, as a table
TimeStage ft
Sep 27, 12:00 AM2.80
Sep 26, 11:45 PM2.80
Sep 26, 11:30 PM2.83
Sep 26, 11:15 PM2.82
Sep 26, 11:00 PM2.81
Sep 26, 10:45 PM2.81
Sep 26, 10:30 PM2.81
Sep 26, 10:15 PM2.81
Sep 26, 10:00 PM2.82
Sep 26, 9:45 PM2.83
Sep 26, 9:30 PM2.82
Sep 26, 9:15 PM2.82
Sep 26, 9:00 PM2.81
Sep 26, 8:45 PM2.80
Sep 26, 8:30 PM2.80
Sep 26, 8:15 PM2.80
Sep 26, 8:00 PM2.81
Sep 26, 7:45 PM2.79
Sep 26, 7:30 PM2.81
Sep 26, 7:15 PM2.81
Sep 26, 7:00 PM2.79
Sep 26, 6:45 PM2.81
Sep 26, 6:30 PM2.82
Sep 26, 6:15 PM2.83
Sep 26, 6:00 PM2.82
Sep 26, 5:45 PM2.82
Sep 26, 5:30 PM2.80
Sep 26, 5:15 PM2.84
Sep 26, 5:00 PM2.85
Sep 26, 4:45 PM2.83
Sep 26, 4:30 PM2.85
Sep 26, 4:15 PM2.85
Sep 26, 4:00 PM2.85
Sep 26, 3:45 PM2.86
Sep 26, 3:30 PM2.86
Sep 26, 3:15 PM2.88
Sep 26, 3:00 PM2.89
Sep 26, 2:45 PM2.87
Sep 26, 2:30 PM2.88
Sep 26, 2:15 PM2.86
Sep 26, 2:00 PM2.87
Sep 26, 1:45 PM2.87
Sep 26, 1:30 PM2.88
Sep 26, 1:15 PM2.87
Sep 26, 1:00 PM2.85
Sep 26, 12:45 PM2.88
Sep 26, 12:30 PM2.88
Sep 26, 12:15 PM2.86
Sep 26, 12:00 PM2.85
Sep 26, 11:45 AM2.85
Sep 26, 11:30 AM2.85
Sep 26, 11:15 AM2.84
Sep 26, 11:00 AM2.84
Sep 26, 10:45 AM2.84
Sep 26, 10:30 AM2.83
Sep 26, 10:15 AM2.83
Sep 26, 10:00 AM2.84
Sep 26, 9:45 AM2.84
Sep 26, 9:30 AM2.84
Sep 26, 9:15 AM2.83
Sep 26, 9:00 AM2.84
Sep 26, 8:45 AM2.86
Sep 26, 8:30 AM2.84
Sep 26, 8:15 AM2.85
Sep 26, 8:00 AM2.84
Sep 26, 7:45 AM2.85
Sep 26, 7:30 AM2.84
Sep 26, 7:15 AM2.83
Sep 26, 7:00 AM2.85
Sep 26, 6:45 AM2.85
Sep 26, 6:30 AM2.83
Sep 26, 6:15 AM2.83
Sep 26, 6:00 AM2.82
Sep 26, 5:45 AM2.82
Sep 26, 5:30 AM2.82
Sep 26, 5:15 AM2.82
Sep 26, 5:00 AM2.81
Sep 26, 4:45 AM2.82
Sep 26, 4:30 AM2.83
Sep 26, 4:15 AM2.83
Sep 26, 4:00 AM2.81
Sep 26, 3:45 AM2.83
Sep 26, 3:30 AM2.82
Sep 26, 3:15 AM2.81
Sep 26, 3:00 AM2.79
Sep 26, 2:45 AM2.79
Sep 26, 2:30 AM2.79
Sep 26, 2:15 AM2.79
Sep 26, 2:00 AM2.79
Sep 26, 1:45 AM2.78
Sep 26, 1:30 AM2.78
Sep 26, 1:15 AM2.77
Sep 26, 1:00 AM2.75
Sep 26, 12:45 AM2.74
Water level, 7 days at USGS Stream Gage at Pilarcitos C A Half Moon Bay: the water from 2.70 to 2.93 feet of stage, the latest 2.80 feet.WATER LEVEL, 7 DAYSFTHIGH 2.93 FT, SEP 22, 4:30 PM · LOW 2.70 FT, SEP 23, 3:45 PM2.702.802.903.00Mon 21Tue 22Wed 23Thu 24Fri 25Sat 26Sun 272.80
Latest
2.80 ftSep 27, 12:00 AM
Highest
2.93 ftSep 22, 4:30 PM
Lowest
2.70 ftSep 23, 3:45 PM
Range
0.23 fthighest less lowest
Change
Fell 0.05 ftsince Sep 20, 12:45 AM
Readings
658
The readings these charts were drawn from, as a table
TimeStage ft
Sep 27, 12:00 AM2.80
Sep 26, 11:45 PM2.80
Sep 26, 10:45 PM2.81
Sep 26, 9:45 PM2.83
Sep 26, 8:45 PM2.80
Sep 26, 7:45 PM2.79
Sep 26, 6:45 PM2.81
Sep 26, 5:45 PM2.82
Sep 26, 4:45 PM2.83
Sep 26, 3:45 PM2.86
Sep 26, 2:45 PM2.87
Sep 26, 1:45 PM2.87
Sep 26, 12:45 PM2.88
Sep 26, 11:45 AM2.85
Sep 26, 10:45 AM2.84
Sep 26, 9:45 AM2.84
Sep 26, 8:45 AM2.86
Sep 26, 7:45 AM2.85
Sep 26, 6:45 AM2.85
Sep 26, 5:45 AM2.82
Sep 26, 4:45 AM2.82
Sep 26, 3:45 AM2.83
Sep 26, 2:45 AM2.79
Sep 26, 1:45 AM2.78
Sep 26, 12:45 AM2.74
Sep 25, 11:45 PM2.75
Sep 25, 10:45 PM2.76
Sep 25, 9:45 PM2.78
Sep 25, 8:45 PM2.76
Sep 25, 7:45 PM2.76
Sep 25, 6:45 PM2.77
Sep 25, 5:45 PM2.80
Sep 25, 4:45 PM2.79
Sep 25, 3:45 PM2.87
Sep 25, 2:45 PM2.81
Sep 25, 1:45 PM2.78
Sep 25, 12:45 PM2.79
Sep 25, 11:45 AM2.78
Sep 25, 10:45 AM2.77
Sep 25, 9:45 AM2.80
Sep 25, 8:45 AM2.79
Sep 25, 7:45 AM2.79
Sep 25, 6:45 AM2.79
Sep 25, 5:45 AM2.77
Sep 25, 4:45 AM2.78
Sep 25, 3:45 AM2.75
Sep 25, 2:45 AM2.75
Sep 25, 1:45 AM2.75
Sep 25, 12:45 AM2.78
Sep 24, 11:45 PM2.76
Sep 24, 10:45 PM2.75
Sep 24, 9:45 PM2.74
Sep 24, 8:45 PM2.76
Sep 24, 7:45 PM2.76
Sep 24, 6:45 PM2.79
Sep 24, 5:45 PM2.76
Sep 24, 4:45 PM2.77
Sep 24, 3:45 PM2.84
Sep 24, 2:45 PM2.83
Sep 24, 1:45 PM2.86
Sep 24, 12:45 PM2.86
Sep 24, 11:45 AM2.86
Sep 24, 10:45 AM2.86
Sep 24, 9:45 AM2.84
Sep 24, 8:45 AM2.85
Sep 24, 7:45 AM2.88
Sep 24, 6:45 AM2.84
Sep 24, 5:45 AM2.84
Sep 24, 4:45 AM2.83
Sep 24, 3:45 AM2.75
Sep 24, 2:45 AM2.76
Sep 24, 1:45 AM2.74
Sep 24, 12:45 AM2.74
Sep 23, 11:45 PM2.74
Sep 23, 10:45 PM2.75
Sep 23, 9:45 PM2.76
Sep 23, 8:45 PM2.74
Sep 23, 7:45 PM2.71
Sep 23, 6:45 PM2.75
Sep 23, 5:45 PM2.76
Sep 23, 4:45 PM2.75
Sep 23, 3:45 PM2.70
Sep 23, 2:45 PM2.72
Sep 23, 1:45 PM2.71
Sep 23, 12:45 PM2.75
Sep 23, 11:45 AM2.76
Sep 23, 10:45 AM2.76
Sep 23, 9:45 AM2.78
Sep 23, 8:45 AM2.82
Sep 23, 7:45 AM2.81
Sep 23, 6:45 AM2.81
Sep 23, 5:45 AM2.81
Sep 23, 4:45 AM2.85
Sep 23, 3:45 AM2.87
Sep 23, 2:45 AM2.87
Sep 23, 1:45 AM2.88
Sep 23, 12:45 AM2.86
Sep 22, 11:45 PM2.87
Sep 22, 10:45 PM2.87
Sep 22, 9:45 PM2.88
Sep 22, 8:45 PM2.88
Sep 22, 7:45 PM2.89
Sep 22, 6:45 PM2.90
Sep 22, 5:45 PM2.92
Sep 22, 4:45 PM2.91
Sep 22, 3:45 PM2.90
Sep 22, 2:45 PM2.87
Sep 22, 1:45 PM2.90
Sep 22, 12:45 PM2.90
Sep 22, 11:45 AM2.90
Sep 22, 10:45 AM2.90
Sep 22, 9:45 AM2.89
Sep 22, 8:45 AM2.87
Sep 22, 7:45 AM2.87
Sep 22, 6:45 AM2.86
Sep 22, 5:00 AM2.87
Sep 22, 4:45 AM2.88
Sep 22, 3:00 AM2.87
Sep 22, 2:45 AM2.87
Sep 22, 1:45 AM2.88
Sep 22, 12:45 AM2.86
Sep 21, 11:45 PM2.84
Sep 21, 10:45 PM2.86
Sep 21, 9:45 PM2.85
Sep 21, 8:45 PM2.86
Sep 21, 7:45 PM2.83
Sep 21, 6:45 PM2.84
Sep 21, 5:45 PM2.83
Sep 21, 4:45 PM2.82
Sep 21, 3:45 PM2.84
Sep 21, 2:45 PM2.86
Sep 21, 1:45 PM2.87
Sep 21, 12:45 PM2.86
Sep 21, 11:45 AM2.82
Sep 21, 10:45 AM2.83
Sep 21, 9:45 AM2.86
Sep 21, 8:45 AM2.87
Sep 21, 7:45 AM2.86
Sep 21, 6:45 AM2.86
Sep 21, 5:45 AM2.83
Sep 21, 4:45 AM2.86
Sep 21, 3:00 AM2.82
Sep 21, 2:45 AM2.85
Sep 21, 1:45 AM2.83
Sep 21, 12:45 AM2.80
Sep 20, 11:45 PM2.82
Sep 20, 10:45 PM2.84
Sep 20, 9:45 PM2.84
Sep 20, 8:45 PM2.84
Sep 20, 7:45 PM2.86
Sep 20, 6:45 PM2.84
Sep 20, 5:45 PM2.84
Sep 20, 4:45 PM2.83
Sep 20, 3:45 PM2.79
Sep 20, 2:45 PM2.84
Sep 20, 1:45 PM2.84
Sep 20, 12:45 PM2.85
Sep 20, 11:45 AM2.86
Sep 20, 10:45 AM2.86
Sep 20, 9:45 AM2.86
Sep 20, 8:45 AM2.84
Sep 20, 7:45 AM2.85
Sep 20, 6:45 AM2.85
Sep 20, 5:45 AM2.85
Sep 20, 4:45 AM2.85
Sep 20, 3:45 AM2.85
Sep 20, 2:45 AM2.85
Sep 20, 1:45 AM2.84
Sep 20, 12:45 AM2.85
Water level, 30 days at USGS Stream Gage at Pilarcitos C A Half Moon Bay: the water from 2.44 to 2.93 feet of stage, the latest 2.80 feet.WATER LEVEL, 30 DAYSFTHIGH 2.93 FT, SEP 22, 4:30 PM · LOW 2.44 FT, AUG 28, 12:45 AM2.42.62.83.0Aug 28Sep 2Sep 7Sep 12Sep 17Sep 222.80
Latest
2.80 ftSep 27, 12:00 AM
Highest
2.93 ftSep 22, 4:30 PM
Lowest
2.44 ftAug 28, 12:45 AM
Range
0.49 fthighest less lowest
Change
Rose 0.36 ftsince Aug 28, 12:45 AM
Readings
2,814
The readings these charts were drawn from, as a table
DayHigh ftLow ftAverage ftLast ftReadings
Sep 272.802.802.802.801
Sep 262.892.742.832.8096
Sep 252.882.742.782.7596
Sep 242.892.722.812.7696
Sep 232.882.702.782.7496
Sep 222.932.852.882.8788
Sep 212.882.802.852.8492
Sep 202.872.792.852.8296
Sep 192.892.842.872.8472
Sep 182.882.792.832.8784
Sep 172.892.812.862.8292
Sep 162.882.822.862.8796
Sep 152.872.822.842.8496
Sep 142.872.792.832.8296
Sep 132.862.762.812.8196
Sep 122.842.782.812.7896
Sep 112.802.642.752.7996
Sep 102.702.572.642.6996
Sep 92.722.592.672.6096
Sep 82.702.652.672.6696
Sep 72.712.542.652.6696
Sep 62.652.542.612.5596
Sep 52.732.592.662.6088
Sep 42.742.632.692.6496
Sep 32.762.602.642.7296
Sep 22.652.512.612.6296
Sep 12.632.502.572.5396
Aug 312.582.502.542.5492
Aug 302.612.482.552.5796
Aug 292.592.462.542.5096
Aug 282.572.442.522.5693

How it reports

Rank
1,255of 3,115 in California, Sep 27
Schedule
every houron the hour's :00
Reports received, 24 hours
24 of 24100% of its schedule
Reports received, 7 days
31 of 31100% of its schedule
Longest silence, 7 days
61 minfrom Sep 25, 11:59 PM
Latest report
Sep 26, 11:59 PMlocal time
Time to reach Storm Station
25 min9 in 10 within 25 min

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

Near USGS Stream Gage at Pilarcitos C A Half Moon Bay

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 how reliably it reports: that is its 247 rank.