Storm Station

In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
EW9903
Latitude
34.88000 N
Longitude
111.76000 W
Elevation
4,384 ft
Rank
-
Air temperature
64F
Relative humidity
52%
Pressure
30.24inHg
Wind
3mph
Gust
12mph
Wind direction
94°
Precipitation this hour
0in
Precipitation today
0in

On the radar over Citizen station EW9903ReflectivityStorm 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. 1,204 instruments in Arizona stand at one.

Station charts

Citizen station EW9903 Report

Rank
-
Time to reach Storm Station
23 s9 in 10 within 31 s
Against its reference, 30 days
-2.4 °Fcooler than the airport station KSEZ, 2.8 miles away, on average over 21 readings; typical difference 3.6 °F

Against its reference: each temperature this station reports is compared with the nearest airport or climate reference station that reported within half an hour, up to 15 miles away. The figure is its reading less the reference's, on average, as both were reported; the typical difference is the root mean square. The difference in height is shown where both heights are known.

Chart of the 1,481 ranked stations in Arizona on Oct 4 by the share of their scheduled reports received in Storm Station's own record, up to 7 days, in tenths: 0 to 9 per cent, 1; 10 to 19 per cent, 1; 20 to 29 per cent, 1; 30 to 39 per cent, 59; 40 to 49 per cent, 76; 50 to 59 per cent, 98; 60 to 69 per cent, 64; 70 to 79 per cent, 146; 80 to 89 per cent, 295; 90 to 99 per cent, 253; 100 per cent, 487.WHERE IT RANKS IN ARIZONA, Oct 4PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9110 to 19120 to 29130 to 395940 to 497650 to 599860 to 696470 to 7914680 to 8929590 to 99253100487STATIONS, LOG SCALE
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%487
90 to 99%253
80 to 89%295
70 to 79%146
60 to 69%64
50 to 59%98
40 to 49%76
30 to 39%59
20 to 29%1
10 to 19%1
0 to 9%1

Station report

Citizen station EW9903, 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

From the east (94 degrees) at 3 mph, gusting 12 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Citizen station EW9903, north up: blowing from 94 degrees, the east, at 3 miles an hour, gusting 12; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EW9903FIG. C THE WIND AT CITIZEN STATION EW9903PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 94°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE8GUST, 12 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECitizen station EW9903, the windSTATION REPORT · CWOP EW9903TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-04IDSR-EW9903-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

From the Field Book

2The column

Contents

At 4,384 ft above sea level, 15 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 25.48 inHg and the temperature at 43.4 F; the station's altimeter setting of 30.24 inHg means its barometer reads 25.75 inHg; it reports 64.0 F, 20.6 F warmer than standard.

Section from sea level of where Citizen station EW9903 stands in the atmosphere, height to scale: the station 4,384 feet above sea level with 15 per cent of the air below it; the standard atmosphere's pressure there, 25.48 inches of mercury, and temperature, 43.4 degrees Fahrenheit; the altimeter setting of 30.24 and the station pressure it means, 25.75.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EW9903FIG. D WHERE CITIZEN STATION EW9903 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 EW990315 PER CENT OF THE AIR BELOW IT4,384 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 HERE25.48 inHgSTANDARD TEMPERATURE HERE43.4 FALTIMETER SETTING, REPORTED30.24 inHgITS BAROMETER READS25.75 inHgTEMPERATURE, REPORTED64.0 FTITLECitizen station EW9903, the columnSTATION REPORT · CWOP EW9903TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-04IDSR-EW9903-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

3The sun

Contents

On Oct 4 the noon sun stands 51 degrees above the horizon at 34.88 N, and the day is 11 h 34 min long. Level ground there takes 77 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station EW9903, angles true: on Oct 4 it stands 51 degrees above the horizon, against 79 at the June solstice, 55 at the equinoxes and 32 at the December solstice; the day is 11 h 34 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EW9903FIG. E THE SUN AT CITIZEN STATION EW9903ELEVATION 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 79°EQUINOXES 55°DECEMBER SOLSTICE 32°OCT 4, 51°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 34 MINLEVEL GROUND TAKES 77 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 34.88 N; THE SUN'S DECLINATION -4.6°TITLECitizen station EW9903, the sunSTATION REPORT · CWOP EW9903TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-04IDSR-EW9903-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 4,384 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station EW9903, each sensor drawn and labelled with what it read: air temperature, 64.0 f; precipitation gauge, 0.00 in today.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EW9903FIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE64.0 FPRECIPITATION GAUGE0.00 IN TODAYSCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station EW9903, the instrumentSTATION REPORT · CWOP EW9903TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-04IDSR-EW9903-4DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

What this instrument measures for

1 place reads it as one of the nearest to it.

Near Citizen station EW9903

Gauges

Weather instruments

Places