Storm Station

In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
G7394
Latitude
38.88000 N
Longitude
77.12000 W
Elevation
258 ft
Rank
1,182of 1,444 in Virginia, Oct 6
Air temperature
54F
Relative humidity
68%
Pressure
30.19inHg
Wind
1mph
Gust
2mph
Wind direction
113°
Precipitation this hour
0in
Precipitation today
0in

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 G7394 Report

Rank 1,182 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 score84.2of 100

  1. Reports receivedweight 3557.730 of 52 scheduled reports received in 7 days
  2. Arrivalweight 10100.0half its reports arrived within 17 s
  3. Continuityweight 1092.6longest silence 3.2 h, on a schedule of one report every 50 min
  4. Accuracyweight 20100.0its temperature against the airport station KDCA, 5.1 miles away, over 48 readings: typical difference 0.8 °F beyond a steady offset of +1.5 °F
  5. Instrument checksweight 15100.00 of 48 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
1,182of 1,444 in Virginia, Oct 6
Time to reach Storm Station
15 s9 in 10 within 30 s
Against its reference, 30 days
+1.1 °Fwarmer than the airport station KDCA, 5.1 miles away, on average over 29 readings; typical difference 1.6 °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: 30 of 52 scheduled reports received, 57.6%.

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 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 G7394 received 57.6 per cent, 30 of 52 scheduled reports, rank 1,182 of 1,444.WHERE IT RANKS IN VIRGINIA, Oct 6THIS ONE: 57.6%, 30 OF 52, RANK 1,182 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 G7394's rank in Virginia by how it reported, day by day, from 2026-10-05 to 2026-10-06: 2026-10-05 rank 1,255 of 1,415; 2026-10-06 rank 1,182 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, 20261,1821,44457.6%
Oct 5, 20261,2551,41547.8%

Station report

Citizen station G7394, 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 east southeast (113 degrees) at 1 mph, gusting 2 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Citizen station G7394, north up: blowing from 113 degrees, the east southeast, at 1 miles an hour, gusting 2; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT G7394FIG. C THE WIND AT CITIZEN STATION G7394PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 113°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 1 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECitizen station G7394, the windSTATION REPORT · CWOP G7394TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-06IDSR-G7394-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

From the Field Book

2The column

Contents

At 258 ft above sea level, 1 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.64 inHg and the temperature at 58.1 F; the station's altimeter setting of 30.19 inHg means its barometer reads 29.91 inHg; it reports 54.0 F, 4.1 F colder than standard.

Section from sea level of where Citizen station G7394 stands in the atmosphere, height to scale: the station 258 feet above sea level with 1 per cent of the air below it; the standard atmosphere's pressure there, 29.64 inches of mercury, and temperature, 58.1 degrees Fahrenheit; the altimeter setting of 30.19 and the station pressure it means, 29.91.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT G7394FIG. D WHERE CITIZEN STATION G7394 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 G73941 PER CENT OF THE AIR BELOW IT258 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 HERE29.64 inHgSTANDARD TEMPERATURE HERE58.1 FALTIMETER SETTING, REPORTED30.19 inHgITS BAROMETER READS29.91 inHgTEMPERATURE, REPORTED54.0 FTITLECitizen station G7394, the columnSTATION REPORT · CWOP G7394TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-06IDSR-G7394-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

3The sun

Contents

On Oct 6 the noon sun stands 46 degrees above the horizon at 38.88 N, and the day is 11 h 26 min long. Level ground there takes 72 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station G7394, angles true: on Oct 6 it stands 46 degrees above the horizon, against 75 at the June solstice, 51 at the equinoxes and 28 at the December solstice; the day is 11 h 26 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT G7394FIG. E THE SUN AT CITIZEN STATION G7394ELEVATION 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 51°DECEMBER SOLSTICE 28°OCT 6, 46°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 26 MINLEVEL GROUND TAKES 72 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 38.88 N; THE SUN'S DECLINATION -5.3°TITLECitizen station G7394, the sunSTATION REPORT · CWOP G7394TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-06IDSR-G7394-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 258 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station G7394, each sensor drawn and labelled with what it read: air temperature, 54.0 f; precipitation gauge, 0.00 in today.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT G7394FIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE54.0 FPRECIPITATION GAUGE0.00 IN TODAYSCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station G7394, the instrumentSTATION REPORT · CWOP G7394TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-06IDSR-G7394-4DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

Near Citizen station G7394