Storm Station

In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
KC4YVA
Latitude
37.47000 N
Longitude
77.28000 W
Elevation
148 ft
Rank
1,354of 1,444 in Virginia, Oct 6
Air temperature
52F
Relative humidity
78%
Pressure
30.15inHg
Wind
0mph
Gust
0mph
Wind direction
173°
Precipitation this hour
0in
Precipitation today
0in

On the radar over Citizen station KC4YVAReflectivityStorm 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. 1,414 instruments in Virginia stand at one.

Station charts

Citizen station KC4YVA Report

Rank 1,354 of 1,444 in Virginia, 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 score75.2of 100

  1. Reports receivedweight 3542.957 of 133 scheduled reports received in 7 days
  2. Arrivalweight 10100.0half its reports arrived within 8 s
  3. Continuityweight 1055.1longest silence 4.2 h, on a schedule of one report every 20 min
  4. Accuracyweight 20100.0its temperature against the airport station KRIC, 3.7 miles away, over 82 readings: typical difference 1.2 °F beyond a steady offset of +0.7 °F
  5. Instrument checksweight 15100.00 of 82 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
1,354of 1,444 in Virginia, Oct 6

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: 57 of 133 scheduled reports received, 42.8%.

Chart of the 1,444 ranked stations in Virginia 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, 5; 10 to 19 per cent, 47; 20 to 29 per cent, 18; 30 to 39 per cent, 12; 40 to 49 per cent, 71; 50 to 59 per cent, 85; 60 to 69 per cent, 98; 70 to 79 per cent, 57; 80 to 89 per cent, 130; 90 to 99 per cent, 573; 100 per cent, 348. Citizen station KC4YVA received 42.8 per cent, 57 of 133 scheduled reports, rank 1,354 of 1,444.WHERE IT RANKS IN VIRGINIA, Oct 6THIS ONE: 42.8%, 57 OF 133, RANK 1,354 OF 1,444PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9510 to 194720 to 291830 to 391240 to 497150 to 598560 to 699870 to 795780 to 8913090 to 99573100348STATIONS, LOG SCALE
Chart of Citizen station KC4YVA's rank in Virginia by how it reported, day by day, from 2026-10-05 to 2026-10-06: 2026-10-05 rank 1,313 of 1,415; 2026-10-06 rank 1,354 of 1,444.ITS RANK IN VIRGINIA, DAY BY DAYRANK, FIRST AT THE TOP15001,0001,500Oct 5Oct 6
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%348
90 to 99%573
80 to 89%130
70 to 79%57
60 to 69%98
50 to 59%85
40 to 49%71
30 to 39%12
20 to 29%18
10 to 19%47
0 to 9%5
DayRankStations rankedShare received
Oct 6, 20261,3541,44442.8%
Oct 5, 20261,3131,41542.6%

Station report

Citizen station KC4YVA, 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

Calm.

Plan of the wind at Citizen station KC4YVA, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT KC4YVAFIG. C THE WIND AT CITIZEN STATION KC4YVAPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECitizen station KC4YVA, the windSTATION REPORT · CWOP KC4YVATYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-06IDSR-KC4YVA-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

From the Field Book

2The column

Contents

At 148 ft above sea level, 1 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.76 inHg and the temperature at 58.5 F; the station's altimeter setting of 30.15 inHg means its barometer reads 29.99 inHg; it reports 52.0 F, 6.5 F colder than standard.

Section from sea level of where Citizen station KC4YVA stands in the atmosphere, height to scale: the station 148 feet above sea level with 1 per cent of the air below it; the standard atmosphere's pressure there, 29.76 inches of mercury, and temperature, 58.5 degrees Fahrenheit; the altimeter setting of 30.15 and the station pressure it means, 29.99.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT KC4YVAFIG. D WHERE CITIZEN STATION KC4YVA 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 KC4YVA1 PER CENT OF THE AIR BELOW IT148 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 HERE29.76 inHgSTANDARD TEMPERATURE HERE58.5 FALTIMETER SETTING, REPORTED30.15 inHgITS BAROMETER READS29.99 inHgTEMPERATURE, REPORTED52.0 FTITLECitizen station KC4YVA, the columnSTATION REPORT · CWOP KC4YVATYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-06IDSR-KC4YVA-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

3The sun

Contents

On Oct 6 the noon sun stands 47 degrees above the horizon at 37.47 N, and the day is 11 h 27 min long. Level ground there takes 73 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station KC4YVA, angles true: on Oct 6 it stands 47 degrees above the horizon, against 76 at the June solstice, 53 at the equinoxes and 29 at the December solstice; the day is 11 h 27 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT KC4YVAFIG. E THE SUN AT CITIZEN STATION KC4YVAELEVATION 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 76°EQUINOXES 53°DECEMBER SOLSTICE 29°OCT 6, 47°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 27 MINLEVEL GROUND TAKES 73 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 37.47 N; THE SUN'S DECLINATION -5.3°TITLECitizen station KC4YVA, the sunSTATION REPORT · CWOP KC4YVATYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-06IDSR-KC4YVA-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 148 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station KC4YVA, 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 KC4YVAFIG. 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 KC4YVA, the instrumentSTATION REPORT · CWOP KC4YVATYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-06IDSR-KC4YVA-4DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

Near Citizen station KC4YVA

Gauges

Weather instruments

Places