Storm Station

In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
GW3881
Latitude
42.09000 N
Longitude
91.87000 W
Elevation
799 ft
Rank
-
Air temperature
70F
Relative humidity
46%
Wind
2mph
Gust
3mph
Wind direction
326°
Precipitation this hour
0in
Precipitation today
0in

On the radar over Citizen station GW3881ReflectivityStorm 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. 1,001 instruments in Iowa stand at one.

Station charts

Citizen station GW3881 Report

Rank
-
Time to reach Storm Station
18 s9 in 10 within 30 s
Against its reference, 30 days
-2.0 °Fcooler than the airport station KVTI, 12 miles away, on average over 31 readings; typical difference 2.7 °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 1,027 ranked stations in Iowa 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, 1; 10 to 19 per cent, 4; 20 to 29 per cent, 2; 30 to 39 per cent, 26; 40 to 49 per cent, 15; 50 to 59 per cent, 13; 60 to 69 per cent, 99; 70 to 79 per cent, 17; 80 to 89 per cent, 121; 90 to 99 per cent, 437; 100 per cent, 292.WHERE IT RANKS IN IOWA, Oct 4PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9110 to 19420 to 29230 to 392640 to 491550 to 591360 to 699970 to 791780 to 8912190 to 99437100292STATIONS, LOG SCALE
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%292
90 to 99%437
80 to 89%121
70 to 79%17
60 to 69%99
50 to 59%13
40 to 49%15
30 to 39%26
20 to 29%2
10 to 19%4
0 to 9%1

Station report

Citizen station GW3881, 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 northwest (326 degrees) at 2 mph, gusting 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Citizen station GW3881, north up: blowing from 326 degrees, the northwest, at 2 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 GW3881FIG. C THE WIND AT CITIZEN STATION GW3881PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 326°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 2 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECitizen station GW3881, the windSTATION REPORT · CWOP GW3881TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-04IDSR-GW3881-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

From the Field Book

2The column

Contents

At 799 ft above sea level, 3 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.07 inHg and the temperature at 56.2 F; it reports 70.0 F, 13.8 F warmer than standard.

Section from sea level of where Citizen station GW3881 stands in the atmosphere, height to scale: the station 799 feet above sea level with 3 per cent of the air below it; the standard atmosphere's pressure there, 29.07 inches of mercury, and temperature, 56.2 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW3881FIG. D WHERE CITIZEN STATION GW3881 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 GW38813 PER CENT OF THE AIR BELOW IT799 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 HERE29.07 inHgSTANDARD TEMPERATURE HERE56.2 FTEMPERATURE, REPORTED70.0 FTITLECitizen station GW3881, the columnSTATION REPORT · CWOP GW3881TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-04IDSR-GW3881-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

3The sun

Contents

On Oct 4 the noon sun stands 43 degrees above the horizon at 42.09 N, and the day is 11 h 27 min long. Level ground there takes 69 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station GW3881, angles true: on Oct 4 it stands 43 degrees above the horizon, against 71 at the June solstice, 48 at the equinoxes and 24 at the December solstice; the day is 11 h 27 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW3881FIG. E THE SUN AT CITIZEN STATION GW3881ELEVATION 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 71°EQUINOXES 48°DECEMBER SOLSTICE 24°OCT 4, 43°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 27 MINLEVEL GROUND TAKES 69 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 42.09 N; THE SUN'S DECLINATION -4.6°TITLECitizen station GW3881, the sunSTATION REPORT · CWOP GW3881TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-04IDSR-GW3881-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 799 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station GW3881, each sensor drawn and labelled with what it read: air temperature, 70.0 f; precipitation gauge, 0.00 in today.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GW3881FIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE70.0 FPRECIPITATION GAUGE0.00 IN TODAYSCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station GW3881, the instrumentSTATION REPORT · CWOP GW3881TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-04IDSR-GW3881-4DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

Near Citizen station GW3881

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