Storm Station
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In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
N9XP-9
Latitude
41.88000 N
Longitude
88.21000 W
Elevation
759 ft
Rank
1,106of 1,393 in Illinois, Oct 16
Observed
4:15 AMCDT, 54 minutes ago
Air temperature
52F
Relative humidity
85%
Pressure
29.94inHg
Wind
1mph
Gust
11mph
Wind direction
157°
Precipitation this hour
0in
Precipitation today
0in

Ranking Statistics

On the radar over Citizen station N9XP-9ReflectivityStorm 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. 1,777 instruments in Illinois stand at one.

Station charts

Citizen station N9XP-9 Report

Rank 1,106 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 score84.4of 100

Illinois median
95.9the median score of 1,393 stations
Scoring higher
1,103stations in Illinois
Sharing its score
4ranks 1,104 to 1,107
Points deducted
15.613.1 reports received, 1.1 continuity, 0.8 accuracy, 0.5 forecast check
Counted at the median
Forecast checknot measured at this station; Illinois median 94.7
Next above
IL-MCL-64rank 1,105; ahead on reports received 71.4% against 62.5%
Next below
IL-CK-331rank 1,107; behind on reports received 62.5% 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 3562.521.9 of 35 pointsIllinois median 99.1105 of 168 scheduled reports received in 7 days
  2. Arrivalweight 10100.010.0 of 10 pointsIllinois median 96.3half its reports arrived within 16 s
  3. Continuityweight 1089.08.9 of 10 pointsIllinois median 100.0longest silence 4.3 h, on a schedule of one report every 60 min
  4. Accuracyweight 2096.019.2 of 20 pointsIllinois median 100.0its temperature against the airport station KDPA, 2.4 miles away, over 138 readings: typical difference 2.0 °F beyond a steady offset of -1.1 °F
  5. Instrument checksweight 15100.015.0 of 15 pointsIllinois median 100.00 of 138 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 (3 h), none for 72 (72 h)
Accuracy
Full marks within 1.7 °F of its reference, typically, none beyond 8.2 °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
1,106of 1,393 in Illinois, Oct 16
Time to reach Storm Station
16 s9 in 10 within 30 s
Against its reference, 30 days
-0.8 °Fcooler than the airport station KDPA, 2.4 miles away, on average over 115 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: 105 of 168 scheduled reports received, 62.5%.

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 1,393 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 N9XP-9 received 62.5 per cent, 105 of 168 scheduled reports, rank 1,106 of 1,393.WHERE IT RANKS IN ILLINOIS, Oct 16THIS ONE: 62.5%, 105 OF 168, RANK 1,106 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 N9XP-9's rank in Illinois by how it reported, day by day, from 2026-10-05 to 2026-10-16: 2026-10-05 rank 1,150 of 1,318; 2026-10-06 rank 1,110 of 1,354; 2026-10-07 rank 1,044 of 1,449; 2026-10-08 rank 1,001 of 1,399; 2026-10-09 rank 1,066 of 1,364; 2026-10-10 rank 1,077 of 1,364; 2026-10-11 rank 1,139 of 1,359; 2026-10-12 rank 1,161 of 1,354; 2026-10-13 rank 1,132 of 1,360; 2026-10-14 rank 1,270 of 1,356; 2026-10-15 rank 1,183 of 1,375; 2026-10-16 rank 1,106 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, 20261,1061,39362.5%
Oct 15, 20261,1831,37549.7%
Oct 14, 20261,2701,35646.5%
Oct 13, 20261,1321,36055.2%
Oct 12, 20261,1611,35455.9%
Oct 11, 20261,1391,35953.3%
Oct 10, 20261,0771,36456.8%
Oct 9, 20261,0661,36456.8%
Oct 8, 20261,0011,39958.9%
Oct 7, 20261,0441,44955.2%
Oct 6, 20261,1101,35451.1%
Oct 5, 20261,1501,31847.3%

Station report

Citizen station N9XP-9, 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 south southeast (157 degrees) at 1 mph, gusting 11 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Citizen station N9XP-9, north up: blowing from 157 degrees, the south southeast, at 1 miles an hour, gusting 11; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT N9XP-9FIG. C THE WIND AT CITIZEN STATION N9XP-9PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 157°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 1 MPH2LIGHT BREEZE43GENTLE BREEZE8GUST, 11 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECitizen station N9XP-9, the windSTATION REPORT · CWOP N9XP-9TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-16IDSR-N9XP9-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

From the Field Book

2The column

Contents

At 759 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; the station's altimeter setting of 29.94 inHg means its barometer reads 29.13 inHg; it reports 52.0 F, 4.3 F colder than standard.

Section from sea level of where Citizen station N9XP-9 stands in the atmosphere, height to scale: the station 759 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; the altimeter setting of 29.94 and the station pressure it means, 29.13.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT N9XP-9FIG. D WHERE CITIZEN STATION N9XP-9 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 N9XP-93 PER CENT OF THE AIR BELOW IT759 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 FALTIMETER SETTING, REPORTED29.94 inHgITS BAROMETER READS29.13 inHgTEMPERATURE, REPORTED52.0 FTITLECitizen station N9XP-9, the columnSTATION REPORT · CWOP N9XP-9TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-16IDSR-N9XP9-2DRAWN 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 41.88 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 N9XP-9, 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 N9XP-9FIG. E THE SUN AT CITIZEN STATION N9XP-9ELEVATION 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 41.88 N; THE SUN'S DECLINATION -9.1°TITLECitizen station N9XP-9, the sunSTATION REPORT · CWOP N9XP-9TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-16IDSR-N9XP9-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 759 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station N9XP-9, each sensor drawn and labelled with what it read: air temperature, 52.0 f; precipitation gauge, 0.00 in today.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT N9XP-9FIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE52.0 FPRECIPITATION GAUGE0.00 IN TODAYSCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station N9XP-9, the instrumentSTATION REPORT · CWOP N9XP-9TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-16IDSR-N9XP9-4DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

Near Citizen station N9XP-9

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