Storm Station

In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
KD9AQS
Latitude
35.56000 N
Longitude
84.23000 W
Elevation
924 ft
Rank
905of 982 in Tennessee, Oct 6

On the radar over Citizen station KD9AQSReflectivityStorm 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. 1,568 instruments in Tennessee stand at one.

Station charts

Citizen station KD9AQS Report

Rank 905 of 982 in Tennessee, Oct 6. 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.

247 score77.2of 100

  1. Reports receivedweight 3546.721 of 45 scheduled reports received in 7 days
  2. Arrivalweight 10100.0half its reports arrived within 19 s
  3. Continuityweight 1068.1longest silence 8 h, on a schedule of one report every 58 min
  4. Accuracyweight 20100.0its temperature against the airport station KMNV, 8.6 miles away, over 29 readings: typical difference 0.8 °F beyond a steady offset of +0.3 °F
  5. Instrument checksweight 15100.00 of 29 readings failed their check against its reference station
  6. Forecast checkweight 10--

The score is the weighted mean of its six parts, from the last 7 days. How a station is ranked sets out each part.

Rank
905of 982 in Tennessee, Oct 6
Time to reach Storm Station
19 s9 in 10 within 31 s
Against its reference, 30 days
+0.2 °Fwarmer than the airport station KMNV, 8.6 miles away, on average over 31 readings; typical difference 1.0 °F

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: 21 of 45 scheduled reports received, 46.6%.

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 982 ranked stations in Tennessee on Oct 6 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, 24; 20 to 29 per cent, 8; 30 to 39 per cent, 4; 40 to 49 per cent, 53; 50 to 59 per cent, 66; 60 to 69 per cent, 70; 70 to 79 per cent, 34; 80 to 89 per cent, 97; 90 to 99 per cent, 247; 100 per cent, 379. Citizen station KD9AQS received 46.6 per cent, 21 of 45 scheduled reports, rank 905 of 982.WHERE IT RANKS IN TENNESSEE, Oct 6THIS ONE: 46.6%, 21 OF 45, RANK 905 OF 982PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 910 to 192420 to 29830 to 39440 to 495350 to 596660 to 697070 to 793480 to 899790 to 99247100379STATIONS, LOG SCALE
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%379
90 to 99%247
80 to 89%97
70 to 79%34
60 to 69%70
50 to 59%66
40 to 49%53
30 to 39%4
20 to 29%8
10 to 19%24
0 to 9%0

Station report

Citizen station KD9AQS, in 3 sheets

Drawn from the register, in the manner of the Field Book, and opened beside the plates that explain each part of it.

1The column

Contents

At 924 ft above sea level, 3 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 28.94 inHg and the temperature at 55.7 F.

Section from sea level of where Citizen station KD9AQS stands in the atmosphere, height to scale: the station 924 feet above sea level with 3 per cent of the air below it; the standard atmosphere's pressure there, 28.94 inches of mercury, and temperature, 55.7 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT KD9AQSFIG. D WHERE CITIZEN STATION KD9AQS 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 KD9AQS3 PER CENT OF THE AIR BELOW IT924 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 HERE28.94 inHgSTANDARD TEMPERATURE HERE55.7 FTITLECitizen station KD9AQS, the columnSTATION REPORT · CWOP KD9AQSTYPESECTIONSCALEHEIGHT TO SCALEREVFROM THE REGISTER SHEET 1 of 3DATE2026-10-06IDSR-KD9AQS-1DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

2The sun

Contents

On Oct 6 the noon sun stands 49 degrees above the horizon at 35.56 N, and the day is 11 h 29 min long. Level ground there takes 76 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station KD9AQS, angles true: on Oct 6 it stands 49 degrees above the horizon, against 78 at the June solstice, 54 at the equinoxes and 31 at the December solstice; the day is 11 h 29 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT KD9AQSFIG. E THE SUN AT CITIZEN STATION KD9AQSELEVATION 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 78°EQUINOXES 54°DECEMBER SOLSTICE 31°OCT 6, 49°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 29 MINLEVEL GROUND TAKES 76 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 35.56 N; THE SUN'S DECLINATION -5.3°TITLECitizen station KD9AQS, the sunSTATION REPORT · CWOP KD9AQSTYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 2 of 3DATE2026-10-06IDSR-KD9AQS-2DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

3The instrument

Contents

A weather instrument, 924 ft above sea level. Its sensors, as its network builds them.

Elevation of the instrument, Citizen station KD9AQS, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT KD9AQSFIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE-PRECIPITATION GAUGE-SCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station KD9AQS, the instrumentSTATION REPORT · CWOP KD9AQSTYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 3 of 3DATE2026-10-06IDSR-KD9AQS-3DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

Near Citizen station KD9AQS

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