Storm Station
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In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
GW2066
Latitude
41.89000 N
Longitude
87.67000 W
Elevation
598 ft
Observed
5:18 AMCDT, 34 minutes ago
Air temperature
54F
Relative humidity
76%
Pressure
29.94inHg
Wind
9mph
Gust
13mph
Wind direction
331°
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 charts

Citizen station GW2066 Report

Rank 1,363 of 1,393 in Illinois, 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 score63.2of 100

Illinois median
95.9the median score of 1,393 stations
Scoring higher
1,362stations in Illinois
Sharing its score
5ranks 1,363 to 1,367
Points deducted
36.827.8 reports received, 8.5 continuity, 0.5 forecast check
Counted at the median
Forecast checknot measured at this station; Illinois median 94.7
Next above
GW7644rank 1,362; ahead on 247 score 63.3 against 63.2
Next below
GW3825rank 1,364; behind on reports received 20.6% against 20.4%

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 3520.77.2 of 35 pointsIllinois median 99.1417 of 2,016 scheduled reports received in 7 days
  2. Arrivalweight 10100.010.0 of 10 pointsIllinois median 96.3half its reports arrived within 18 s
  3. Continuityweight 1015.11.5 of 10 pointsIllinois median 100.0longest silence 3.7 h, on a schedule of one report every 5 min
  4. Accuracyweight 20100.020.0 of 20 pointsIllinois median 100.0its temperature against the airport station KMDW, 8.5 miles away, over 215 readings: typical difference 1.6 °F beyond a steady offset of +0.6 °F
  5. Instrument checksweight 15100.015.0 of 15 pointsIllinois median 100.00 of 215 readings failed their check against its reference station
  6. Forecast checkweight 10-9.5 of 10 points, at the medianIllinois median 94.7-

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 (15 min), none for 72 (6 h)
Accuracy
Full marks within 2.4 °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
Time to reach Storm Station
18 s9 in 10 within 30 s
Against its reference, 30 days
+0.7 °Fwarmer than the airport station KMDW, 8.5 miles away, on average over 310 readings; typical difference 1.9 °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: 417 of 2,016 scheduled reports received, 20.6%.

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 1,393 ranked stations in Illinois 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, 2; 10 to 19 per cent, 8; 20 to 29 per cent, 28; 30 to 39 per cent, 5; 40 to 49 per cent, 83; 50 to 59 per cent, 144; 60 to 69 per cent, 25; 70 to 79 per cent, 91; 80 to 89 per cent, 143; 90 to 99 per cent, 339; 100 per cent, 525. Citizen station GW2066 received 20.6 per cent, 417 of 2,016 scheduled reports, rank 1,363 of 1,393.WHERE IT RANKS IN ILLINOIS, Oct 16THIS ONE: 20.6%, 417 OF 2,016, RANK 1,363 OF 1,393PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9210 to 19820 to 292830 to 39540 to 498350 to 5914460 to 692570 to 799180 to 8914390 to 99339100525STATIONS, LOG SCALE
Chart of Citizen station GW2066's rank in Illinois by how it reported, day by day, from 2026-10-05 to 2026-10-16: 2026-10-05 rank 1,286 of 1,318; 2026-10-06 rank 1,325 of 1,354; 2026-10-07 rank 1,409 of 1,449; 2026-10-08 rank 1,366 of 1,399; 2026-10-09 rank 1,338 of 1,364; 2026-10-10 rank 1,340 of 1,364; 2026-10-11 rank 1,331 of 1,359; 2026-10-12 rank 1,325 of 1,354; 2026-10-13 rank 1,329 of 1,360; 2026-10-14 rank 1,327 of 1,356; 2026-10-15 rank 1,346 of 1,375; 2026-10-16 rank 1,363 of 1,393.ITS RANK IN ILLINOIS, DAY BY DAYRANK, FIRST AT THE TOP15001,0001,500Oct 5Oct 7Oct 9Oct 11Oct 13Oct 15Oct 16
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%525
90 to 99%339
80 to 89%143
70 to 79%91
60 to 69%25
50 to 59%144
40 to 49%83
30 to 39%5
20 to 29%28
10 to 19%8
0 to 9%2
DayRankStations rankedShare received
Oct 16, 20261,3631,39320.6%
Oct 15, 20261,3461,37520.8%
Oct 14, 20261,3271,35620.5%
Oct 13, 20261,3291,36020.0%
Oct 12, 20261,3251,35419.1%
Oct 11, 20261,3311,35918.8%
Oct 10, 20261,3401,36418.7%
Oct 9, 20261,3381,36418.6%
Oct 8, 20261,3661,39918.4%
Oct 7, 20261,4091,44917.3%
Oct 6, 20261,3251,35416.8%
Oct 5, 20261,2861,31815.5%

Station report

Citizen station GW2066, 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 north northwest (331 degrees) at 9 mph, gusting 13 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Citizen station GW2066, north up: blowing from 331 degrees, the north northwest, at 9 miles an hour, gusting 13; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW2066FIG. C THE WIND AT CITIZEN STATION GW2066PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 331°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 9 MPH4MODERATE BREEZE13GUST, 13 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECitizen station GW2066, the windSTATION REPORT · CWOP GW2066TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-16IDSR-GW2066-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

From the Field Book

2The column

Contents

At 598 ft above sea level, 2 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.28 inHg and the temperature at 56.9 F; the station's altimeter setting of 29.94 inHg means its barometer reads 29.30 inHg; it reports 54.0 F, 2.9 F colder than standard.

Section from sea level of where Citizen station GW2066 stands in the atmosphere, height to scale: the station 598 feet above sea level with 2 per cent of the air below it; the standard atmosphere's pressure there, 29.28 inches of mercury, and temperature, 56.9 degrees Fahrenheit; the altimeter setting of 29.94 and the station pressure it means, 29.30.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW2066FIG. D WHERE CITIZEN STATION GW2066 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 GW20662 PER CENT OF THE AIR BELOW IT598 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 HERE29.28 inHgSTANDARD TEMPERATURE HERE56.9 FALTIMETER SETTING, REPORTED29.94 inHgITS BAROMETER READS29.30 inHgTEMPERATURE, REPORTED54.0 FTITLECitizen station GW2066, the columnSTATION REPORT · CWOP GW2066TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-16IDSR-GW2066-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

3The sun

Contents

On Oct 16 the noon sun stands 39 degrees above the horizon at 41.89 N, and the day is 10 h 54 min long. Level ground there takes 63 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station GW2066, angles true: on Oct 16 it stands 39 degrees above the horizon, against 72 at the June solstice, 48 at the equinoxes and 25 at the December solstice; the day is 10 h 54 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW2066FIG. E THE SUN AT CITIZEN STATION GW2066ELEVATION 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 72°EQUINOXES 48°DECEMBER SOLSTICE 25°OCT 16, 39°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 54 MINLEVEL GROUND TAKES 63 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 41.89 N; THE SUN'S DECLINATION -9.1°TITLECitizen station GW2066, the sunSTATION REPORT · CWOP GW2066TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-16IDSR-GW2066-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 598 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station GW2066, each sensor drawn and labelled with what it read: air temperature, 54.0 f; precipitation gauge, 0.00 in today.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW2066FIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE54.0 FPRECIPITATION GAUGE0.00 IN TODAYSCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station GW2066, the instrumentSTATION REPORT · CWOP GW2066TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-16IDSR-GW2066-4DRAWN 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 GW2066