Storm Station

In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
CW6641
Latitude
37.95000 N
Longitude
87.39000 W
Elevation
434 ft
Rank
-
Air temperature
55F
Relative humidity
83%
Pressure
30.17inHg
Precipitation this hour
0in
Precipitation today
0in

On the radar over Citizen station CW6641ReflectivityStorm 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. 1,809 instruments in Indiana stand at one.

Station charts

Citizen station CW6641 Report

Rank
-
Time to reach Storm Station
17 s9 in 10 within 31 s
Against its reference, 30 days
+1.2 °Fwarmer than the airport station KEVV, 9.7 miles away, on average over 12 readings; typical difference 1.3 °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 912 ranked stations in Indiana 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, 0; 10 to 19 per cent, 3; 20 to 29 per cent, 0; 30 to 39 per cent, 13; 40 to 49 per cent, 5; 50 to 59 per cent, 5; 60 to 69 per cent, 139; 70 to 79 per cent, 15; 80 to 89 per cent, 87; 90 to 99 per cent, 164; 100 per cent, 481.WHERE IT RANKS IN INDIANA, Oct 4PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 910 to 19320 to 2930 to 391340 to 49550 to 59560 to 6913970 to 791580 to 898790 to 99164100481STATIONS, LOG SCALE
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%481
90 to 99%164
80 to 89%87
70 to 79%15
60 to 69%139
50 to 59%5
40 to 49%5
30 to 39%13
20 to 29%0
10 to 19%3
0 to 9%0

Station report

Citizen station CW6641, in 3 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 column

Contents

At 434 ft above sea level, 2 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.45 inHg and the temperature at 57.5 F; the station's altimeter setting of 30.17 inHg means its barometer reads 29.70 inHg; it reports 55.0 F, 2.5 F colder than standard.

Section from sea level of where Citizen station CW6641 stands in the atmosphere, height to scale: the station 434 feet above sea level with 2 per cent of the air below it; the standard atmosphere's pressure there, 29.45 inches of mercury, and temperature, 57.5 degrees Fahrenheit; the altimeter setting of 30.17 and the station pressure it means, 29.70.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CW6641FIG. D WHERE CITIZEN STATION CW6641 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 CW66412 PER CENT OF THE AIR BELOW IT434 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 HERE29.45 inHgSTANDARD TEMPERATURE HERE57.5 FALTIMETER SETTING, REPORTED30.17 inHgITS BAROMETER READS29.70 inHgTEMPERATURE, REPORTED55.0 FTITLECitizen station CW6641, the columnSTATION REPORT · CWOP CW6641TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 3DATE2026-10-04IDSR-CW6641-1DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

2The sun

Contents

On Oct 4 the noon sun stands 47 degrees above the horizon at 37.95 N, and the day is 11 h 31 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 CW6641, angles true: on Oct 4 it stands 47 degrees above the horizon, against 75 at the June solstice, 52 at the equinoxes and 29 at the December solstice; the day is 11 h 31 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CW6641FIG. E THE SUN AT CITIZEN STATION CW6641ELEVATION 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 52°DECEMBER SOLSTICE 29°OCT 4, 47°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 31 MINLEVEL GROUND TAKES 74 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 37.95 N; THE SUN'S DECLINATION -4.6°TITLECitizen station CW6641, the sunSTATION REPORT · CWOP CW6641TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 2 of 3DATE2026-10-04IDSR-CW6641-2DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

3The instrument

Contents

A weather instrument, 434 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station CW6641, each sensor drawn and labelled with what it read: air temperature, 55.0 f; precipitation gauge, 0.00 in today.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CW6641FIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE55.0 FPRECIPITATION GAUGE0.00 IN TODAYSCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station CW6641, the instrumentSTATION REPORT · CWOP CW6641TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 3 of 3DATE2026-10-04IDSR-CW6641-3DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

Near Citizen station CW6641

Gauges

Weather instruments

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