Storm Station
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In a volunteer observer's own ground

COCORAHS network, identified by the register

Identifier
PR-LP-2
Latitude
18.18810 N
Longitude
65.84300 W
Elevation
755 ft
Rank
241of 243 in Puerto Rico, Oct 16

Ranking Statistics

On the radar over Las Piedras 1.8 ENEReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

In a volunteer observer's own ground

Drawn as the kind of place it stands at. 139 instruments in Puerto Rico stand at one.

Station charts

Las Piedras 1.8 ENE Report

Rank 241 of 243 in Puerto Rico, Oct 16. The 247 rank orders a state's stations by their 247 score out of 100: how reliably they report, how accurate their readings are against a reference station, how their readings pass their checks, and how they stand against the forecast.

Rank
241of 243 in Puerto Rico, Oct 16
Reports received, 7 days
3
Days reported, 30 days
14 of 30
Longest silence, 7 days
3 days 17 hoursfrom Oct 12, 8:00 AM
Latest report
Oct 12, 8:00 AMlocal time
Time to reach Storm Station
26 min
Reports received at Las Piedras 1.8 ENE, reports from 0.0 to 1.0, the latest 0.0, in reports.REPORTS RECEIVEDreports00.250.50.751Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Fri 16
Precipitation at Las Piedras 1.8 ENE, precipitation from 0.02 to 1.25, the latest 0.49, in inches.PRECIPITATIONin0.000.501.001.50Sep 17Sep 22Sep 27Oct 2Oct 7Oct 12
The readings these charts were drawn from, as a table
DayPrecipitation in
Oct 120.49
Oct 110.75
Oct 100.10
Oct 80.26
Oct 71.03
Oct 50.02
Oct 40.20
Oct 20.90
Sep 290.10
Sep 240.20
Sep 220.59
Sep 190.03
Sep 180.70
Sep 171.25

Station report

Las Piedras 1.8 ENE, in 3 sheets

Drawn from the register, in the manner of the Field Book, and opened beside the plates that explain each part of it.

1The column

Contents

At 755 ft above sea level, 3 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.11 inHg and the temperature at 56.3 F.

Section from sea level of where Las Piedras 1.8 ENE stands in the atmosphere, height to scale: the station 755 feet above sea level with 3 per cent of the air below it; the standard atmosphere's pressure there, 29.11 inches of mercury, and temperature, 56.3 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PR-LP-2FIG. D WHERE LAS PIEDRAS 1.8 ENE STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHERELAS PIEDRAS 1.8 ENE3 PER CENT OF THE AIR BELOW IT755 FT10 PER CENT OF THE AIR BELOW, 2,890 FT20 PER CENT OF THE AIR BELOW, 6,050 FT30 PER CENT OF THE AIR BELOW, 9,540 FT40 PER CENT OF THE AIR BELOW, 13,470 FTSTANDARD PRESSURE HERE29.11 inHgSTANDARD TEMPERATURE HERE56.3 FTITLELas Piedras 1.8 ENE, the columnSTATION REPORT · COCORAHS PR-LP-2TYPESECTIONSCALEHEIGHT TO SCALEREVFROM THE REGISTER SHEET 1 of 3DATE2026-10-16IDSR-PRLP2-1DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

2The sun

Contents

On Oct 16 the noon sun stands 63 degrees above the horizon at 18.19 N, and the day is 11 h 36 min long. Level ground there takes 89 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Las Piedras 1.8 ENE, angles true: on Oct 16 it stands 63 degrees above the horizon, against 85 at the June solstice, 72 at the equinoxes and 48 at the December solstice; the day is 11 h 36 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PR-LP-2FIG. E THE SUN AT LAS PIEDRAS 1.8 ENEELEVATION LOOKING WEST, SOUTH TO THE LEFT: THE NOON SUN ON THE DAY OF THE REPORT, AND AT THE SOLSTICES AND EQUINOXES; ANGLES TRUETHE STATIONJUNE SOLSTICE 85°EQUINOXES 72°DECEMBER SOLSTICE 48°OCT 16, 63°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 36 MINLEVEL GROUND TAKES 89 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 18.19 N; THE SUN'S DECLINATION -9.1°TITLELas Piedras 1.8 ENE, the sunSTATION REPORT · COCORAHS PR-LP-2TYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 2 of 3DATE2026-10-16IDSR-PRLP2-2DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

3The instrument

Contents

A community rain gauge, 755 ft above sea level. Its sensors, as its network builds them.

Elevation of a community rain gauge, Las Piedras 1.8 ENE, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PR-LP-2FIG. F THE INSTRUMENTELEVATION OF A COMMUNITY RAIN GAUGE, EACH SENSOR WITH WHAT IT READ4 INCH RAIN GAUGE, READ EACH MORNING-SCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLELas Piedras 1.8 ENE, the instrumentSTATION REPORT · COCORAHS PR-LP-2TYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 3 of 3DATE2026-10-16IDSR-PRLP2-3DRAWN AS linework on paperSOURCES FB-INS-001, FB-INS-003

From the Field Book

The instrumentWhat an instrument is FB-INS-001Personal weather station FB-INS-003

What it seesFlash flood FB-EVT-100Snowpack strata FB-WAT-031

Near Las Piedras 1.8 ENE

Gauges

Weather instruments