Storm Station

In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
EW4490
Latitude
40.03000 N
Longitude
104.72000 W
Elevation
5,028 ft
Rank
1,928of 2,610 in Colorado, Oct 6
Air temperature
58F
Relative humidity
49%
Pressure
30.11inHg
Wind
0mph
Gust
4mph
Wind direction
210°
Precipitation this hour
0in
Precipitation today
0in

On the radar over Citizen station EW4490ReflectivityStorm 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. 3,989 instruments in Colorado stand at one.

Station charts

Citizen station EW4490 Report

Rank 1,928 of 2,610 in Colorado, 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 score83.1of 100

  1. Reports receivedweight 3561.454 of 88 scheduled reports received in 7 days
  2. Arrivalweight 10100.0half its reports arrived within 21 s
  3. Continuityweight 1087.2longest silence 2.3 h, on a schedule of one report every 30 min
  4. Accuracyweight 2092.1its temperature against the airport station KDEN, 13.1 miles away, over 28 readings: typical difference 3.3 °F beyond a steady offset of +0.4 °F
  5. Instrument checksweight 15100.00 of 28 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
1,928of 2,610 in Colorado, Oct 6
Time to reach Storm Station
20 s9 in 10 within 31 s
Against its reference, 30 days
-0.2 °Fcooler than the airport station KDEN, 13 miles away, on average over 37 readings; typical difference 3.8 °F

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: 54 of 88 scheduled reports received, 61.3%.

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 2,610 ranked stations in Colorado 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, 8; 10 to 19 per cent, 32; 20 to 29 per cent, 105; 30 to 39 per cent, 19; 40 to 49 per cent, 145; 50 to 59 per cent, 90; 60 to 69 per cent, 297; 70 to 79 per cent, 30; 80 to 89 per cent, 224; 90 to 99 per cent, 963; 100 per cent, 697. Citizen station EW4490 received 61.3 per cent, 54 of 88 scheduled reports, rank 1,928 of 2,610.WHERE IT RANKS IN COLORADO, Oct 6THIS ONE: 61.3%, 54 OF 88, RANK 1,928 OF 2,610PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9810 to 193220 to 2910530 to 391940 to 4914550 to 599060 to 6929770 to 793080 to 8922490 to 99963100697STATIONS, LOG SCALE
Chart of Citizen station EW4490's rank in Colorado by how it reported, day by day, from 2026-10-05 to 2026-10-06: 2026-10-05 rank 1,886 of 2,564; 2026-10-06 rank 1,928 of 2,610.ITS RANK IN COLORADO, DAY BY DAYRANK, FIRST AT THE TOP15001,0001,5002,000Oct 5Oct 6
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%697
90 to 99%963
80 to 89%224
70 to 79%30
60 to 69%297
50 to 59%90
40 to 49%145
30 to 39%19
20 to 29%105
10 to 19%32
0 to 9%8
DayRankStations rankedShare received
Oct 6, 20261,9282,61061.3%
Oct 5, 20261,8862,56462.5%

Station report

Citizen station EW4490, 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 EW4490, 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 EW4490FIG. C THE WIND AT CITIZEN STATION EW4490PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE4GUST, 4 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECitizen station EW4490, the windSTATION REPORT · CWOP EW4490TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-06IDSR-EW4490-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

From the Field Book

2The column

Contents

At 5,028 ft above sea level, 17 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 24.87 inHg and the temperature at 41.1 F; the station's altimeter setting of 30.11 inHg means its barometer reads 25.03 inHg; it reports 58.0 F, 16.9 F warmer than standard.

Section from sea level of where Citizen station EW4490 stands in the atmosphere, height to scale: the station 5,028 feet above sea level with 17 per cent of the air below it; the standard atmosphere's pressure there, 24.87 inches of mercury, and temperature, 41.1 degrees Fahrenheit; the altimeter setting of 30.11 and the station pressure it means, 25.03.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EW4490FIG. D WHERE CITIZEN STATION EW4490 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 EW449017 PER CENT OF THE AIR BELOW IT5,028 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 HERE24.87 inHgSTANDARD TEMPERATURE HERE41.1 FALTIMETER SETTING, REPORTED30.11 inHgITS BAROMETER READS25.03 inHgTEMPERATURE, REPORTED58.0 FTITLECitizen station EW4490, the columnSTATION REPORT · CWOP EW4490TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-06IDSR-EW4490-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

3The sun

Contents

On Oct 6 the noon sun stands 45 degrees above the horizon at 40.03 N, and the day is 11 h 24 min long. Level ground there takes 70 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station EW4490, angles true: on Oct 6 it stands 45 degrees above the horizon, against 73 at the June solstice, 50 at the equinoxes and 27 at the December solstice; the day is 11 h 24 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EW4490FIG. E THE SUN AT CITIZEN STATION EW4490ELEVATION 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 73°EQUINOXES 50°DECEMBER SOLSTICE 27°OCT 6, 45°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 24 MINLEVEL GROUND TAKES 70 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 40.03 N; THE SUN'S DECLINATION -5.3°TITLECitizen station EW4490, the sunSTATION REPORT · CWOP EW4490TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-06IDSR-EW4490-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 5,028 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station EW4490, each sensor drawn and labelled with what it read: air temperature, 58.0 f; precipitation gauge, 0.00 in today.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EW4490FIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE58.0 FPRECIPITATION GAUGE0.00 IN TODAYSCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station EW4490, the instrumentSTATION REPORT · CWOP EW4490TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-06IDSR-EW4490-4DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

Near Citizen station EW4490

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