Storm Station

In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
AA7DG
Latitude
47.76000 N
Longitude
117.42000 W
Elevation
1,792 ft
Rank
-
Air temperature
40F
Relative humidity
92%
Pressure
30.17inHg
Wind
0mph
Gust
0mph
Wind direction
116°

On the radar over Citizen station AA7DGReflectivityStorm 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. 1,293 instruments in Washington stand at one.

Station charts

Citizen station AA7DG Report

Rank
-
Time to reach Storm Station
15 s9 in 10 within 30 s
Against its reference, 30 days
-1.7 °Fcooler than the airport station KSFF, 6.9 miles away, on average over 14 readings; typical difference 2.5 °F

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 1,146 ranked stations in Washington on Oct 4 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, 4; 20 to 29 per cent, 2; 30 to 39 per cent, 37; 40 to 49 per cent, 12; 50 to 59 per cent, 75; 60 to 69 per cent, 89; 70 to 79 per cent, 17; 80 to 89 per cent, 23; 90 to 99 per cent, 532; 100 per cent, 355.WHERE IT RANKS IN WASHINGTON, Oct 4PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 910 to 19420 to 29230 to 393740 to 491250 to 597560 to 698970 to 791780 to 892390 to 99532100355STATIONS, LOG SCALE
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%355
90 to 99%532
80 to 89%23
70 to 79%17
60 to 69%89
50 to 59%75
40 to 49%12
30 to 39%37
20 to 29%2
10 to 19%4
0 to 9%0

Station report

Citizen station AA7DG, 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 AA7DG, 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 AA7DGFIG. C THE WIND AT CITIZEN STATION AA7DGPLAN, 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 AA7DG, the windSTATION REPORT · CWOP AA7DGTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-04IDSR-AA7DG-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

From the Field Book

2The column

Contents

At 1,792 ft above sea level, 6 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 28.03 inHg and the temperature at 52.6 F; the station's altimeter setting of 30.17 inHg means its barometer reads 28.27 inHg; it reports 40.0 F, 12.6 F colder than standard.

Section from sea level of where Citizen station AA7DG stands in the atmosphere, height to scale: the station 1,792 feet above sea level with 6 per cent of the air below it; the standard atmosphere's pressure there, 28.03 inches of mercury, and temperature, 52.6 degrees Fahrenheit; the altimeter setting of 30.17 and the station pressure it means, 28.27.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT AA7DGFIG. D WHERE CITIZEN STATION AA7DG 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 AA7DG6 PER CENT OF THE AIR BELOW IT1,792 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 HERE28.03 inHgSTANDARD TEMPERATURE HERE52.6 FALTIMETER SETTING, REPORTED30.17 inHgITS BAROMETER READS28.27 inHgTEMPERATURE, REPORTED40.0 FTITLECitizen station AA7DG, the columnSTATION REPORT · CWOP AA7DGTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-04IDSR-AA7DG-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

3The sun

Contents

On Oct 4 the noon sun stands 38 degrees above the horizon at 47.76 N, and the day is 11 h 19 min long. Level ground there takes 61 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station AA7DG, angles true: on Oct 4 it stands 38 degrees above the horizon, against 66 at the June solstice, 42 at the equinoxes and 19 at the December solstice; the day is 11 h 19 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT AA7DGFIG. E THE SUN AT CITIZEN STATION AA7DGELEVATION 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 66°EQUINOXES 42°DECEMBER SOLSTICE 19°OCT 4, 38°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 19 MINLEVEL GROUND TAKES 61 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 47.76 N; THE SUN'S DECLINATION -4.6°TITLECitizen station AA7DG, the sunSTATION REPORT · CWOP AA7DGTYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-04IDSR-AA7DG-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 1,792 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station AA7DG, each sensor drawn and labelled with what it read: air temperature, 40.0 f.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT AA7DGFIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE40.0 FPRECIPITATION GAUGE-SCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station AA7DG, the instrumentSTATION REPORT · CWOP AA7DGTYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-04IDSR-AA7DG-4DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

Near Citizen station AA7DG

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