Storm Station

In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
GW4019
Latitude
37.46000 N
Longitude
122.44000 W
Elevation
67 ft
Rank
-
Air temperature
55F
Relative humidity
90%
Pressure
29.86inHg
Wind
0mph
Gust
0mph
Wind direction
0°
Precipitation this hour
0in
Precipitation today
0in

On the radar over Citizen station GW4019ReflectivityStorm 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. 1,788 instruments in California stand at one.

Station charts

Citizen station GW4019 Report

Rank
-
Time to reach Storm Station
15 s
Against its reference, 30 days
+2.0 °Fwarmer than the airport station KHAF, 4.9 miles away, on average over 9 readings; typical difference 2.1 °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 4,072 ranked stations in California 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, 86; 10 to 19 per cent, 52; 20 to 29 per cent, 8; 30 to 39 per cent, 43; 40 to 49 per cent, 36; 50 to 59 per cent, 54; 60 to 69 per cent, 151; 70 to 79 per cent, 116; 80 to 89 per cent, 218; 90 to 99 per cent, 2,244; 100 per cent, 1,064.WHERE IT RANKS IN CALIFORNIA, Oct 4PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101001,0000 to 98610 to 195220 to 29830 to 394340 to 493650 to 595460 to 6915170 to 7911680 to 8921890 to 992,2441001,064STATIONS, LOG SCALE
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%1,064
90 to 99%2,244
80 to 89%218
70 to 79%116
60 to 69%151
50 to 59%54
40 to 49%36
30 to 39%43
20 to 29%8
10 to 19%52
0 to 9%86

Station report

Citizen station GW4019, 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 GW4019, 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 GW4019FIG. C THE WIND AT CITIZEN STATION GW4019PLAN, 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 GW4019, the windSTATION REPORT · CWOP GW4019TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-04IDSR-GW4019-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

From the Field Book

2The column

Contents

At 67 ft above sea level, 0 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.85 inHg and the temperature at 58.8 F; the station's altimeter setting of 29.86 inHg means its barometer reads 29.79 inHg; it reports 55.0 F, 3.8 F colder than standard.

Section from sea level of where Citizen station GW4019 stands in the atmosphere, height to scale: the station 67 feet above sea level with 0 per cent of the air below it; the standard atmosphere's pressure there, 29.85 inches of mercury, and temperature, 58.8 degrees Fahrenheit; the altimeter setting of 29.86 and the station pressure it means, 29.79.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW4019FIG. D WHERE CITIZEN STATION GW4019 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 GW40190 PER CENT OF THE AIR BELOW IT67 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 HERE29.85 inHgSTANDARD TEMPERATURE HERE58.8 FALTIMETER SETTING, REPORTED29.86 inHgITS BAROMETER READS29.79 inHgTEMPERATURE, REPORTED55.0 FTITLECitizen station GW4019, the columnSTATION REPORT · CWOP GW4019TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-04IDSR-GW4019-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

3The sun

Contents

On Oct 4 the noon sun stands 48 degrees above the horizon at 37.46 N, and the day is 11 h 32 min long. Level ground there takes 74 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station GW4019, angles true: on Oct 4 it stands 48 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 32 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW4019FIG. E THE SUN AT CITIZEN STATION GW4019ELEVATION 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 4, 48°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 32 MINLEVEL GROUND TAKES 74 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 37.46 N; THE SUN'S DECLINATION -4.6°TITLECitizen station GW4019, the sunSTATION REPORT · CWOP GW4019TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-04IDSR-GW4019-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 67 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station GW4019, each sensor drawn and labelled with what it read: air temperature, 55.0 f; precipitation gauge, 0.00 in today.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW4019FIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE55.0 FPRECIPITATION GAUGE0.00 IN TODAYSCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station GW4019, the instrumentSTATION REPORT · CWOP GW4019TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-04IDSR-GW4019-4DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

Near Citizen station GW4019

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