Storm Station

In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
GW2231
Latitude
38.51000 N
Longitude
89.96000 W
Elevation
512 ft
Rank
1,110of 1,359 in Illinois, Oct 11
Observed
12:40 AMCDT, 55 minutes ago
Air temperature
58F
Relative humidity
85%
Pressure
29.92inHg
Wind
0mph
Gust
0mph
Wind direction
277°
Precipitation this hour
0in
Precipitation today
0in

Ranking Statistics

In a volunteer observer's own ground

Drawn as the kind of place it stands at. 1,777 instruments in Illinois stand at one.

Station report

Citizen station GW2231, in 4 sheets

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

1The wind

Contents

Calm.

Plan of the wind at Citizen station GW2231, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW2231FIG. C THE WIND AT CITIZEN STATION GW2231PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECitizen station GW2231, the windSTATION REPORT · CWOP GW2231TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-11IDSR-GW2231-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

From the Field Book

2The column

Contents

At 512 ft above sea level, 2 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.37 inHg and the temperature at 57.2 F; the station's altimeter setting of 29.92 inHg means its barometer reads 29.37 inHg; it reports 58.0 F, 0.8 F warmer than standard.

Section from sea level of where Citizen station GW2231 stands in the atmosphere, height to scale: the station 512 feet above sea level with 2 per cent of the air below it; the standard atmosphere's pressure there, 29.37 inches of mercury, and temperature, 57.2 degrees Fahrenheit; the altimeter setting of 29.92 and the station pressure it means, 29.37.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW2231FIG. D WHERE CITIZEN STATION GW2231 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 ATMOSPHERECITIZEN STATION GW22312 PER CENT OF THE AIR BELOW IT512 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 HERE29.37 inHgSTANDARD TEMPERATURE HERE57.2 FALTIMETER SETTING, REPORTED29.92 inHgITS BAROMETER READS29.37 inHgTEMPERATURE, REPORTED58.0 FTITLECitizen station GW2231, the columnSTATION REPORT · CWOP GW2231TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-11IDSR-GW2231-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

3The sun

Contents

On Oct 11 the noon sun stands 44 degrees above the horizon at 38.51 N, and the day is 11 h 14 min long. Level ground there takes 70 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station GW2231, angles true: on Oct 11 it stands 44 degrees above the horizon, against 75 at the June solstice, 51 at the equinoxes and 28 at the December solstice; the day is 11 h 14 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW2231FIG. E THE SUN AT CITIZEN STATION GW2231ELEVATION 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 75°EQUINOXES 51°DECEMBER SOLSTICE 28°OCT 11, 44°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 14 MINLEVEL GROUND TAKES 70 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 38.51 N; THE SUN'S DECLINATION -7.2°TITLECitizen station GW2231, the sunSTATION REPORT · CWOP GW2231TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-11IDSR-GW2231-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 512 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station GW2231, each sensor drawn and labelled with what it read: air temperature, 58.0 f; precipitation gauge, 0.00 in today.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW2231FIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE58.0 FPRECIPITATION GAUGE0.00 IN TODAYSCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station GW2231, the instrumentSTATION REPORT · CWOP GW2231TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-11IDSR-GW2231-4DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

Near Citizen station GW2231