Storm Station

In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
FW7745
Latitude
38.88000 N
Longitude
76.99000 W
Elevation
76 ft
Rank
12of 12 in District of Columbia, Oct 6
Air temperature
63F
Relative humidity
55%
Pressure
30.2inHg
Wind
3mph
Gust
3mph
Wind direction
336°
Precipitation this hour
0in
Precipitation today
0in

On the radar over Citizen station FW7745ReflectivityStorm 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. 27 instruments in District of Columbia stand at one.

Station charts

Citizen station FW7745 Report

Rank 12 of 12 in District of Columbia, 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 score57.4of 100

  1. Reports receivedweight 3514.879 of 534 scheduled reports received in 7 days
  2. Arrivalweight 10100.0half its reports arrived within 18 s
  3. Continuityweight 1014.5longest silence 3.8 h, on a schedule of one report every 5 min
  4. Accuracyweight 20100.0its temperature against the airport station KDCA, 3.3 miles away, over 82 readings: typical difference 1.2 °F beyond a steady offset of +0.3 °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
12of 12 in District of Columbia, Oct 6
Time to reach Storm Station
18 s9 in 10 within 31 s
Against its reference, 30 days
-0.1 °Fcooler than the airport station KDCA, 3.3 miles away, on average over 56 readings; typical difference 1.0 °F; also compared with 1 other reference station

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: 79 of 534 scheduled reports received, 14.7%.

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 12 ranked stations in District of Columbia 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, 1; 20 to 29 per cent, 0; 30 to 39 per cent, 0; 40 to 49 per cent, 2; 50 to 59 per cent, 2; 60 to 69 per cent, 2; 70 to 79 per cent, 0; 80 to 89 per cent, 0; 90 to 99 per cent, 0; 100 per cent, 5. Citizen station FW7745 received 14.7 per cent, 79 of 534 scheduled reports, rank 12 of 12.WHERE IT RANKS IN DISTRICT OF COLUMBIA, Oct 6THIS ONE: 14.7%, 79 OF 534, RANK 12 OF 12PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS10 to 910 to 19120 to 2930 to 3940 to 49250 to 59260 to 69270 to 7980 to 8990 to 991005STATIONS, LOG SCALE
Chart of Citizen station FW7745's rank in District of Columbia by how it reported, day by day, from 2026-10-05 to 2026-10-06: 2026-10-05 rank 10 of 10; 2026-10-06 rank 12 of 12.ITS RANK IN DISTRICT OF COLUMBIA, DAY BY DAYRANK, FIRST AT THE TOP151015Oct 5Oct 6
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%5
90 to 99%0
80 to 89%0
70 to 79%0
60 to 69%2
50 to 59%2
40 to 49%2
30 to 39%0
20 to 29%0
10 to 19%1
0 to 9%0
DayRankStations rankedShare received
Oct 6, 2026121214.7%
Oct 5, 2026101014.2%

Station report

Citizen station FW7745, 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 north northwest (336 degrees) at 3 mph, gusting 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Citizen station FW7745, north up: blowing from 336 degrees, the north northwest, at 3 miles an hour, gusting 3; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FW7745FIG. C THE WIND AT CITIZEN STATION FW7745PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 336°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECitizen station FW7745, the windSTATION REPORT · CWOP FW7745TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-06IDSR-FW7745-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

From the Field Book

2The column

Contents

At 76 ft above sea level, 0 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.84 inHg and the temperature at 58.7 F; the station's altimeter setting of 30.20 inHg means its barometer reads 30.12 inHg; it reports 63.0 F, 4.3 F warmer than standard.

Section from sea level of where Citizen station FW7745 stands in the atmosphere, height to scale: the station 76 feet above sea level with 0 per cent of the air below it; the standard atmosphere's pressure there, 29.84 inches of mercury, and temperature, 58.7 degrees Fahrenheit; the altimeter setting of 30.20 and the station pressure it means, 30.12.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FW7745FIG. D WHERE CITIZEN STATION FW7745 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 FW77450 PER CENT OF THE AIR BELOW IT76 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 HERE29.84 inHgSTANDARD TEMPERATURE HERE58.7 FALTIMETER SETTING, REPORTED30.20 inHgITS BAROMETER READS30.12 inHgTEMPERATURE, REPORTED63.0 FTITLECitizen station FW7745, the columnSTATION REPORT · CWOP FW7745TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-06IDSR-FW7745-2DRAWN 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 FW7745, 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 FW7745FIG. E THE SUN AT CITIZEN STATION FW7745ELEVATION 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 FW7745, the sunSTATION REPORT · CWOP FW7745TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-06IDSR-FW7745-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 76 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station FW7745, each sensor drawn and labelled with what it read: air temperature, 63.0 f; precipitation gauge, 0.00 in today.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FW7745FIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE63.0 FPRECIPITATION GAUGE0.00 IN TODAYSCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station FW7745, the instrumentSTATION REPORT · CWOP FW7745TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-06IDSR-FW7745-4DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

What this instrument measures for

1 place reads it as one of the nearest to it.

Near Citizen station FW7745

Gauges

Weather instruments

Places