Storm Station
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In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
E1521
Latitude
33.20000 N
Longitude
111.58000 W
Elevation
1,475 ft
Rank
1,611of 1,869 in Arizona, Oct 16
Observed
11:05 PMMST, 33 minutes ago
Air temperature
74F
Relative humidity
35%
Pressure
29.97inHg
Wind
0mph
Gust
2mph
Wind direction
24°
Precipitation this hour
0in
Precipitation today
0in

Ranking Statistics

On the radar over Citizen station E1521ReflectivityStorm 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. 1,209 instruments in Arizona stand at one.

Station charts

Citizen station E1521 Report

Rank 1,611 of 1,869 in Arizona, 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.

Ranking Statistics

247 score79.9of 100

Arizona median
91.5the median score of 1,869 stations
Scoring higher
1,610stations in Arizona
Sharing its score
3ranks 1,611 to 1,613
Points deducted
20.114.2 reports received, 4.1 continuity, 1.2 accuracy, 0.6 forecast check
Counted at the median
Forecast checknot measured at this station; Arizona median 93.8
Next above
GW6585rank 1,610; ahead on 247 score 80.0 against 79.9
Next below
AZ-PM-229rank 1,612; behind on reports received 59.5% against 57.1%

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 3559.520.8 of 35 pointsArizona median 85.7150 of 252 scheduled reports received in 7 days
  2. Arrivalweight 10100.010.0 of 10 pointsArizona median 79.1half its reports arrived within 17 s
  3. Continuityweight 1059.56.0 of 10 pointsArizona median 100.0longest silence 7.3 h, on a schedule of one report every 40 min
  4. Accuracyweight 2093.818.8 of 20 pointsArizona median 96.5its temperature against the airport station KIWA, 7.9 miles away, over 142 readings: typical difference 2.7 °F beyond a steady offset of -1.0 °F
  5. Instrument checksweight 15100.015.0 of 15 pointsArizona median 100.00 of 142 readings failed their check against its reference station
  6. Forecast checkweight 10-9.4 of 10 points, at the medianArizona median 93.8-

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 (2 h), none for 72 (48 h)
Accuracy
Full marks within 2.3 °F of its reference, typically, none beyond 8.8 °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
Rank
1,611of 1,869 in Arizona, Oct 16
Time to reach Storm Station
17 s9 in 10 within 30 s
Against its reference, 30 days
-1.3 °Fcooler than the airport station KIWA, 7.9 miles away, on average over 180 readings; typical difference 3.3 °F; also compared with 1 other reference station

The reports received are counted from the network's own archive of this station's reports. Its 247 rank is counted from Storm Station's own record, which holds less than 7 days of it so far: 150 of 252 scheduled reports received, 59.5%.

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 1,869 ranked stations in Arizona on Oct 16 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, 0; 10 to 19 per cent, 4; 20 to 29 per cent, 23; 30 to 39 per cent, 5; 40 to 49 per cent, 139; 50 to 59 per cent, 240; 60 to 69 per cent, 39; 70 to 79 per cent, 172; 80 to 89 per cent, 421; 90 to 99 per cent, 308; 100 per cent, 518. Citizen station E1521 received 59.5 per cent, 150 of 252 scheduled reports, rank 1,611 of 1,869.WHERE IT RANKS IN ARIZONA, Oct 16THIS ONE: 59.5%, 150 OF 252, RANK 1,611 OF 1,869PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 910 to 19420 to 292330 to 39540 to 4913950 to 5924060 to 693970 to 7917280 to 8942190 to 99308100518STATIONS, LOG SCALE
Chart of Citizen station E1521's rank in Arizona by how it reported, day by day, from 2026-10-05 to 2026-10-16: 2026-10-05 rank 1,155 of 1,623; 2026-10-06 rank 1,231 of 1,582; 2026-10-07 rank 974 of 1,508; 2026-10-08 rank 924 of 1,221; 2026-10-09 rank 1,065 of 1,661; 2026-10-10 rank 1,062 of 1,661; 2026-10-11 rank 1,489 of 1,656; 2026-10-12 rank 1,427 of 1,722; 2026-10-13 rank 1,532 of 1,762; 2026-10-14 rank 1,612 of 1,845; 2026-10-15 rank 1,655 of 1,880; 2026-10-16 rank 1,611 of 1,869.ITS RANK IN ARIZONA, DAY BY DAYRANK, FIRST AT THE TOP15001,0001,5002,000Oct 5Oct 7Oct 9Oct 11Oct 13Oct 15Oct 16
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%518
90 to 99%308
80 to 89%421
70 to 79%172
60 to 69%39
50 to 59%240
40 to 49%139
30 to 39%5
20 to 29%23
10 to 19%4
0 to 9%0
DayRankStations rankedShare received
Oct 16, 20261,6111,86959.5%
Oct 15, 20261,6551,88058.3%
Oct 14, 20261,6121,84558.3%
Oct 13, 20261,5321,76256.3%
Oct 12, 20261,4271,72254.7%
Oct 11, 20261,4891,65649.3%
Oct 10, 20261,0621,66155.9%
Oct 9, 20261,0651,66155.6%
Oct 8, 20269241,22159.0%
Oct 7, 20269741,50855.5%
Oct 6, 20261,2311,58253.8%
Oct 5, 20261,1551,62358.3%

Station report

Citizen station E1521, 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 E1521, 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 E1521FIG. C THE WIND AT CITIZEN STATION E1521PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR1GUST, 2 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECitizen station E1521, the windSTATION REPORT · CWOP E1521TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-16IDSR-E1521-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

From the Field Book

2The column

Contents

At 1,475 ft above sea level, 5 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 28.36 inHg and the temperature at 53.7 F; the station's altimeter setting of 29.97 inHg means its barometer reads 28.41 inHg; it reports 74.0 F, 20.3 F warmer than standard.

Section from sea level of where Citizen station E1521 stands in the atmosphere, height to scale: the station 1,475 feet above sea level with 5 per cent of the air below it; the standard atmosphere's pressure there, 28.36 inches of mercury, and temperature, 53.7 degrees Fahrenheit; the altimeter setting of 29.97 and the station pressure it means, 28.41.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT E1521FIG. D WHERE CITIZEN STATION E1521 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 E15215 PER CENT OF THE AIR BELOW IT1,475 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 HERE28.36 inHgSTANDARD TEMPERATURE HERE53.7 FALTIMETER SETTING, REPORTED29.97 inHgITS BAROMETER READS28.41 inHgTEMPERATURE, REPORTED74.0 FTITLECitizen station E1521, the columnSTATION REPORT · CWOP E1521TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-16IDSR-E1521-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

3The sun

Contents

On Oct 16 the noon sun stands 48 degrees above the horizon at 33.20 N, and the day is 11 h 12 min long. Level ground there takes 74 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station E1521, angles true: on Oct 16 it stands 48 degrees above the horizon, against 80 at the June solstice, 57 at the equinoxes and 33 at the December solstice; the day is 11 h 12 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT E1521FIG. E THE SUN AT CITIZEN STATION E1521ELEVATION 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 80°EQUINOXES 57°DECEMBER SOLSTICE 33°OCT 16, 48°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 12 MINLEVEL GROUND TAKES 74 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 33.20 N; THE SUN'S DECLINATION -9.1°TITLECitizen station E1521, the sunSTATION REPORT · CWOP E1521TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-16IDSR-E1521-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 1,475 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station E1521, each sensor drawn and labelled with what it read: air temperature, 74.0 f; precipitation gauge, 0.00 in today.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT E1521FIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE74.0 FPRECIPITATION GAUGE0.00 IN TODAYSCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station E1521, the instrumentSTATION REPORT · CWOP E1521TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-16IDSR-E1521-4DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

Near Citizen station E1521

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