Storm Station
Sign in

Live/Water/Florida/SR A1A at 11th Street Canal in St Augustine Beach (in NAVD88)

SR A1A at 11th Street Canal in St Augustine Beach (in NAVD88)

A water gauge in St. Johns County, Florida. Its stage was 2.52 ft as of Oct 14, 3:33 PM EDT.

Gauge SAAF1St. Johns County, FloridaEvery gauge in Florida

Stage now
2.52 ftreported Oct 14, 3:33 PM EDT
24 hour change
Fell 0.08 ftsince Oct 13, 3:34 PM
Elevation
7 ftabove sea level
County
St. Johns County
Position
29.8519° N, 81.2788° W
Record since
2025

Water level

SR A1A at 11th Street Canal in St Augustine Beach (in NAVD88)

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, 7 days at SR A1A at 11th Street Canal in St Augustine Beach (in NAVD88): the water from 1.23 to 4.10 feet of stage, the latest 2.52 feet.WATER LEVEL, 7 DAYSFTHIGH 4.10 FT, OCT 9, 11:16 PM · LOW 1.23 FT, OCT 9, 1:29 AM12345Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Fri 162.52
Latest
2.52 ftOct 14, 3:33 PM
Highest
4.10 ftOct 9, 11:16 PM
Lowest
1.23 ftOct 9, 1:29 AM
Range
2.87 fthighest less lowest
Change
Rose 1.28 ftsince Oct 9, 1:21 AM
Readings
3,556
The readings these charts were drawn from, as a table
TimeStage ft
Oct 14, 3:33 PM2.52
Oct 14, 2:59 PM2.53
Oct 14, 1:59 PM2.55
Oct 14, 12:59 PM2.52
Oct 14, 11:59 AM2.48
Oct 14, 10:59 AM2.46
Oct 14, 9:59 AM2.45
Oct 14, 8:59 AM2.46
Oct 14, 7:59 AM2.47
Oct 14, 6:59 AM2.47
Oct 14, 5:59 AM2.48
Oct 14, 4:59 AM2.49
Oct 14, 3:59 AM2.50
Oct 14, 2:59 AM2.50
Oct 14, 1:59 AM2.51
Oct 14, 12:59 AM2.52
Oct 13, 11:59 PM2.52
Oct 13, 10:59 PM2.52
Oct 13, 9:59 PM2.52
Oct 13, 8:59 PM2.53
Oct 13, 7:59 PM2.54
Oct 13, 6:59 PM2.55
Oct 13, 5:59 PM2.55
Oct 13, 4:59 PM2.57
Oct 13, 3:59 PM2.59
Oct 13, 2:59 PM2.60
Oct 13, 1:59 PM2.61
Oct 13, 12:59 PM2.64
Oct 13, 11:59 AM2.60
Oct 13, 10:59 AM2.56
Oct 13, 9:59 AM2.53
Oct 13, 8:59 AM2.54
Oct 13, 7:59 AM2.54
Oct 13, 6:59 AM2.55
Oct 13, 5:59 AM2.56
Oct 13, 4:59 AM2.56
Oct 13, 3:59 AM2.57
Oct 13, 2:59 AM2.58
Oct 13, 1:59 AM2.59
Oct 13, 12:59 AM2.60
Oct 12, 11:59 PM2.61
Oct 12, 10:59 PM2.61
Oct 12, 9:59 PM2.62
Oct 12, 8:59 PM2.63
Oct 12, 7:59 PM2.64
Oct 12, 6:59 PM2.65
Oct 12, 5:59 PM2.66
Oct 12, 4:59 PM2.67
Oct 12, 3:59 PM2.69
Oct 12, 2:59 PM2.71
Oct 12, 1:59 PM2.74
Oct 12, 12:59 PM2.75
Oct 12, 11:59 AM2.78
Oct 12, 10:59 AM2.74
Oct 12, 9:59 AM2.69
Oct 12, 8:59 AM2.69
Oct 12, 7:52 AM2.70
Oct 12, 6:59 AM2.71
Oct 12, 5:59 AM2.72
Oct 12, 4:49 AM2.73
Oct 12, 3:59 AM2.74
Oct 12, 2:59 AM2.75
Oct 12, 1:59 AM2.77
Oct 12, 12:59 AM2.78
Oct 11, 11:59 PM2.79
Oct 11, 10:59 PM2.81
Oct 11, 9:59 PM2.81
Oct 11, 8:55 PM2.83
Oct 11, 7:59 PM2.85
Oct 11, 6:59 PM2.86
Oct 11, 5:59 PM2.88
Oct 11, 4:59 PM2.90
Oct 11, 3:59 PM2.92
Oct 11, 2:59 PM2.94
Oct 11, 1:59 PM2.98
Oct 11, 12:59 PM3.00
Oct 11, 11:59 AM3.03
Oct 11, 10:59 AM3.04
Oct 11, 9:59 AM2.98
Oct 11, 8:59 AM2.91
Oct 11, 7:58 AM2.92
Oct 11, 6:55 AM2.93
Oct 11, 5:59 AM2.94
Oct 11, 4:59 AM2.95
Oct 11, 3:59 AM2.96
Oct 11, 2:59 AM2.96
Oct 11, 1:59 AM2.97
Oct 11, 12:59 AM2.97
Oct 10, 11:59 PM2.97
Oct 10, 10:59 PM2.94
Oct 10, 9:59 PM2.85
Oct 10, 8:59 PM2.75
Oct 10, 7:59 PM2.67
Oct 10, 6:59 PM2.59
Oct 10, 5:59 PM2.71
Oct 10, 4:59 PM2.85
Oct 10, 3:59 PM3.00
Oct 10, 2:59 PM3.16
Oct 10, 1:59 PM3.35
Oct 10, 12:59 PM3.55
Oct 10, 11:59 AM3.66
Oct 10, 10:59 AM3.70
Oct 10, 9:59 AM3.64
Oct 10, 8:59 AM3.54
Oct 10, 7:56 AM3.48
Oct 10, 6:52 AM3.51
Oct 10, 5:57 AM3.60
Oct 10, 4:59 AM3.66
Oct 10, 3:59 AM3.74
Oct 10, 2:59 AM3.82
Oct 10, 1:59 AM3.91
Oct 10, 12:59 AM4.00
Oct 9, 11:59 PM4.07
Oct 9, 10:59 PM4.07
Oct 9, 9:59 PM3.93
Oct 9, 8:59 PM3.68
Oct 9, 7:59 PM3.28
Oct 9, 6:59 PM2.72
Oct 9, 5:59 PM1.64
Oct 9, 4:59 PM1.43
Oct 9, 3:59 PM1.41
Oct 9, 2:59 PM1.43
Oct 9, 1:59 PM1.46
Oct 9, 12:59 PM1.53
Oct 9, 11:59 AM1.58
Oct 9, 10:59 AM1.59
Oct 9, 9:59 AM1.56
Oct 9, 8:57 AM1.52
Oct 9, 7:59 AM1.48
Oct 9, 6:52 AM1.41
Oct 9, 5:58 AM1.38
Oct 9, 4:59 AM1.35
Oct 9, 3:56 AM1.31
Oct 9, 2:52 AM1.28
Oct 9, 1:57 AM1.26
Water level, 30 days at SR A1A at 11th Street Canal in St Augustine Beach (in NAVD88): the water from 1.16 to 4.10 feet of stage, the latest 2.52 feet.WATER LEVEL, 30 DAYSFTHIGH 4.10 FT, OCT 9, 11:16 PM · LOW 1.16 FT, OCT 8, 5:46 PM12345Sep 16Sep 21Sep 26Oct 1Oct 6Oct 112.52
Latest
2.52 ftOct 14, 3:33 PM
Highest
4.10 ftOct 9, 11:16 PM
Lowest
1.16 ftOct 8, 5:46 PM
Range
2.94 fthighest less lowest
Change
Rose 0.39 ftsince Sep 16, 1:16 AM
Readings
17,643
The readings these charts were drawn from, as a table
DayHigh ftLow ftAverage ftLast ftReadings
Oct 142.562.452.502.52423
Oct 132.642.512.562.52713
Oct 122.792.612.692.61674
Oct 113.062.792.932.79610
Oct 104.072.583.232.97607
Oct 94.101.212.074.07539
Oct 81.971.161.461.21445
Oct 72.711.441.861.68574
Oct 62.702.202.452.64545
Oct 52.211.922.032.21550
Oct 41.991.911.951.96654
Oct 31.971.911.941.95520
Oct 21.961.891.931.94578
Oct 11.961.891.941.92670
Sep 301.991.931.961.95652
Sep 292.021.961.991.98595
Sep 282.051.972.012.01634
Sep 272.072.002.042.04632
Sep 262.102.022.052.06687
Sep 252.102.022.062.08672
Sep 242.071.962.012.07580
Sep 232.021.931.982.01556
Sep 222.001.951.981.98575
Sep 212.011.961.991.99653
Sep 202.021.972.002.00667
Sep 192.062.002.022.01662
Sep 182.122.042.082.06655
Sep 172.152.052.102.09649
Sep 162.161.942.042.04672

How it reports

Schedule
every 30 minon the hour's :03 and :33
Reports received, 24 hours
0 of 480.0% of its schedule
Reports received, 7 days
272 of 33680.9% of its schedule
Longest silence, 7 days
33 h 41 minfrom Oct 14, 3:33 PM
Latest report
Oct 14, 3:33 PMlocal time
Time to reach Storm Station
18 min9 in 10 within 18 min

From Storm Station's own record of every report it heard from this station.

Its schedule is one report every 30 min, 48 in 24 hours. Two reports in the same 30 min count as one received.

Ranking Statistics

247 score83.5of 100

Florida median
95.4the median score of 2,338 stations
Scoring higher
1,895stations in Florida
Sharing its score
34ranks 1,896 to 1,929
Points deducted
16.59.3 continuity, 5.6 reports received, 1.6 arrival
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; Florida median 100.0, 100.0, 100.0
Next above
HLFF1rank 1,896; ahead on reports received 87.9% against 83.9%
Next below
ELCF1rank 1,925; behind on median arrival 17 min 49 s against 17 min 50 s
Sharing its rank
27other 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 3583.929.4 of 35 pointsFlorida median 99.4282 of 336 scheduled reports received in 7 days
  2. Arrivalweight 1084.48.4 of 10 pointsFlorida median 84.4half its reports arrived within 18 min
  3. Continuityweight 107.40.7 of 10 pointsFlorida median 100.0longest silence 28.5 h, on a schedule of one report every 30 min
  4. Accuracyweight 20-20.0 of 20 points, at the medianFlorida median 100.0-
  5. Instrument checksweight 15-15.0 of 15 points, at the medianFlorida median 100.0-
  6. Forecast checkweight 10-10.0 of 10 points, at the medianFlorida median 100.0-

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 (1.5 h), none for 72 (36 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 SR A1A at 11th Street Canal in St Augustine Beach (in NAVD88)

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.