Storm Station
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In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
GW3861
Latitude
36.24000 N
Longitude
86.57000 W
Elevation
519 ft
Rank
768of 1,015 in Tennessee, Oct 17
Observed
11:45 AMCDT, 44 minutes ago
Air temperature
57F
Relative humidity
59%
Pressure
30.43inHg
Wind
3mph
Gust
6mph
Wind direction
206°
Precipitation this hour
0in
Precipitation today
0in

Ranking Statistics

On the radar over Citizen station GW3861ReflectivityStorm 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. 1,575 instruments in Tennessee stand at one.

Station charts

Citizen station GW3861 Report

Rank 768 of 1,015 in Tennessee, Oct 17. 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 score85.0of 100

Tennessee median
97.1the median score of 1,015 stations
Scoring higher
766stations in Tennessee
Sharing its score
2ranks 767 to 768
Points deducted
15.013.5 reports received, 1.3 continuity, 0.2 forecast check
Counted at the median
Forecast checknot measured at this station; Tennessee median 98.4
Next above
FW2651rank 767; ahead on reports received 63.6% against 61.3%
Next below
TDUT1rank 769; behind on 247 score 85.0 against 84.8

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 3561.321.5 of 35 pointsTennessee median 98.8103 of 168 scheduled reports received in 7 days
  2. Arrivalweight 10100.010.0 of 10 pointsTennessee median 100.0half its reports arrived within 16 s
  3. Continuityweight 1087.18.7 of 10 pointsTennessee median 100.0longest silence 4.5 h, on a schedule of one report every 60 min
  4. Accuracyweight 20100.020.0 of 20 pointsTennessee median 100.0its temperature against the airport station KBNA, 11.1 miles away, over 140 readings: typical difference 2.1 °F beyond a steady offset of -1.4 °F
  5. Instrument checksweight 15100.015.0 of 15 pointsTennessee median 100.00 of 140 readings failed their check against its reference station
  6. Forecast checkweight 10-9.8 of 10 points, at the medianTennessee median 98.4-

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 2.6 °F of its reference, typically, none beyond 9.1 °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
768of 1,015 in Tennessee, Oct 17
Time to reach Storm Station
17 s9 in 10 within 30 s
Against its reference, 30 days
-2.3 °Fcooler than the airport station KBNA, 11 miles away, on average over 143 readings; typical difference 3.1 °F; also compared with 2 other reference stations

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: 103 of 168 scheduled reports received, 61.3%.

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 1,015 ranked stations in Tennessee on Oct 17 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, 1; 10 to 19 per cent, 21; 20 to 29 per cent, 7; 30 to 39 per cent, 5; 40 to 49 per cent, 75; 50 to 59 per cent, 118; 60 to 69 per cent, 21; 70 to 79 per cent, 85; 80 to 89 per cent, 72; 90 to 99 per cent, 218; 100 per cent, 392. Citizen station GW3861 received 61.3 per cent, 103 of 168 scheduled reports, rank 768 of 1,015.WHERE IT RANKS IN TENNESSEE, Oct 17THIS ONE: 61.3%, 103 OF 168, RANK 768 OF 1,015PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9110 to 192120 to 29730 to 39540 to 497550 to 5911860 to 692170 to 798580 to 897290 to 99218100392STATIONS, LOG SCALE
Chart of Citizen station GW3861's rank in Tennessee by how it reported, day by day, from 2026-10-05 to 2026-10-17: 2026-10-05 rank 908 of 970; 2026-10-06 rank 871 of 982; 2026-10-07 rank 893 of 1,021; 2026-10-08 rank 802 of 1,020; 2026-10-09 rank 920 of 1,001; 2026-10-10 rank 926 of 1,001; 2026-10-11 rank 913 of 1,003; 2026-10-12 rank 819 of 1,007; 2026-10-13 rank 809 of 1,014; 2026-10-14 rank 776 of 1,012; 2026-10-15 rank 776 of 1,012; 2026-10-16 rank 772 of 1,019; 2026-10-17 rank 768 of 1,015.ITS RANK IN TENNESSEE, DAY BY DAYRANK, FIRST AT THE TOP12505007501,000Oct 5Oct 8Oct 11Oct 14Oct 17
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%392
90 to 99%218
80 to 89%72
70 to 79%85
60 to 69%21
50 to 59%118
40 to 49%75
30 to 39%5
20 to 29%7
10 to 19%21
0 to 9%1
DayRankStations rankedShare received
Oct 17, 20267681,01561.3%
Oct 16, 20267721,01962.9%
Oct 15, 20267761,01262.9%
Oct 14, 20267761,01261.3%
Oct 13, 20268091,01460.1%
Oct 12, 20268191,00758.9%
Oct 11, 20269131,00348.3%
Oct 10, 20269261,00145.6%
Oct 9, 20269201,00146.4%
Oct 8, 20268021,02059.4%
Oct 7, 20268931,02148.5%
Oct 6, 202687198252.2%
Oct 5, 202690897041.1%

Station report

Citizen station GW3861, 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 southwest (206 degrees) at 3 mph, gusting 6 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Citizen station GW3861, north up: blowing from 206 degrees, the south southwest, at 3 miles an hour, gusting 6; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW3861FIG. C THE WIND AT CITIZEN STATION GW3861PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 206°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE4GUST, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECitizen station GW3861, the windSTATION REPORT · CWOP GW3861TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-17IDSR-GW3861-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

From the Field Book

2The column

Contents

At 519 ft above sea level, 2 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.36 inHg and the temperature at 57.1 F; the station's altimeter setting of 30.43 inHg means its barometer reads 29.86 inHg; it reports 57.0 F, 0.1 F colder than standard.

Section from sea level of where Citizen station GW3861 stands in the atmosphere, height to scale: the station 519 feet above sea level with 2 per cent of the air below it; the standard atmosphere's pressure there, 29.36 inches of mercury, and temperature, 57.1 degrees Fahrenheit; the altimeter setting of 30.43 and the station pressure it means, 29.86.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW3861FIG. D WHERE CITIZEN STATION GW3861 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 GW38612 PER CENT OF THE AIR BELOW IT519 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 HERE29.36 inHgSTANDARD TEMPERATURE HERE57.1 FALTIMETER SETTING, REPORTED30.43 inHgITS BAROMETER READS29.86 inHgTEMPERATURE, REPORTED57.0 FTITLECitizen station GW3861, the columnSTATION REPORT · CWOP GW3861TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-17IDSR-GW3861-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

3The sun

Contents

On Oct 17 the noon sun stands 44 degrees above the horizon at 36.24 N, and the day is 11 h 04 min long. Level ground there takes 70 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station GW3861, angles true: on Oct 17 it stands 44 degrees above the horizon, against 77 at the June solstice, 54 at the equinoxes and 30 at the December solstice; the day is 11 h 04 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW3861FIG. E THE SUN AT CITIZEN STATION GW3861ELEVATION 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 77°EQUINOXES 54°DECEMBER SOLSTICE 30°OCT 17, 44°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 04 MINLEVEL GROUND TAKES 70 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 36.24 N; THE SUN'S DECLINATION -9.4°TITLECitizen station GW3861, the sunSTATION REPORT · CWOP GW3861TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-17IDSR-GW3861-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 519 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station GW3861, each sensor drawn and labelled with what it read: air temperature, 57.0 f; precipitation gauge, 0.00 in today.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW3861FIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE57.0 FPRECIPITATION GAUGE0.00 IN TODAYSCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station GW3861, the instrumentSTATION REPORT · CWOP GW3861TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-17IDSR-GW3861-4DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

Near Citizen station GW3861

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