Storm Station
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In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
EW8564
Latitude
46.84000 N
Longitude
113.83000 W
Elevation
3,323 ft
Rank
1,015of 1,053 in Montana, Oct 16
Observed
2:25 AMMDT, 31 minutes ago
Air temperature
42F
Relative humidity
82%
Pressure
30.69inHg
Wind
0mph
Gust
7mph
Wind direction
133°
Precipitation this hour
0in
Precipitation today
0in

Ranking Statistics

On the radar over Citizen station EW8564ReflectivityStorm 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. 334 instruments in Montana stand at one.

Station charts

Citizen station EW8564 Report

Rank 1,015 of 1,053 in Montana, Oct 16. 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.

Ranking Statistics

247 score72.4of 100

Montana median
91.1the median score of 1,053 stations
Scoring higher
1,014stations in Montana
Sharing its score
1no other station
Points deducted
27.617.3 reports received, 4.2 continuity, 4.0 accuracy, 2.1 forecast check
Counted at the median
Forecast checknot measured at this station; Montana median 78.7
Next above
EW6167rank 1,014; ahead on 247 score 72.5 against 72.4
Next below
UMHM8rank 1,016; behind on 247 score 72.4 against 72.3

Equal scores are ordered by the share of scheduled reports received, then the reports due in the week (the longer record first), then the median arrival, then the longest silence.

  1. Reports receivedweight 3550.617.7 of 35 pointsMontana median 98.8124 of 245 scheduled reports received in 7 days
  2. Arrivalweight 10100.010.0 of 10 pointsMontana median 80.4half its reports arrived within 20 s
  3. Continuityweight 1058.25.8 of 10 pointsMontana median 100.0longest silence 7.7 h, on a schedule of one report every 41 min
  4. Accuracyweight 2080.216.0 of 20 pointsMontana median 86.7its temperature against the airport station KMSO, 13.7 miles away, over 90 readings: typical difference 4.2 °F beyond a steady offset of +2.4 °F
  5. Instrument checksweight 15100.015.0 of 15 pointsMontana median 100.00 of 90 readings failed their check against its reference station
  6. Forecast checkweight 10-7.9 of 10 points, at the medianMontana median 78.7-

The score is the weighted mean of its six parts, from the last 7 days. How a station is ranked sets out each part.

How each part is scored
Reports received
Full marks for every scheduled report received, none for none, in proportion between
Arrival
Full marks for a median arrival within 10 min, none at 60 min
Continuity
Full marks for a longest silence of 3 reports or less (2.1 h), none for 72 (49.2 h)
Accuracy
Full marks within 2.9 °F of its reference, typically, none beyond 9.4 °F
Instrument checks
Full marks for no reading failed, none for 5 per cent or more
Forecast check
Full marks within 2 °F of the forecast on average, none at 8 °F
Rank
1,015of 1,053 in Montana, Oct 16
Time to reach Storm Station
20 s9 in 10 within 31 s
Against its reference, 30 days
+2.1 °Fwarmer than the airport station KMSO, 14 miles away, on average over 138 readings; typical difference 4.4 °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: 124 of 245 scheduled reports received, 50.6%.

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 1,053 ranked stations in Montana on Oct 16 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, 0; 20 to 29 per cent, 11; 30 to 39 per cent, 0; 40 to 49 per cent, 29; 50 to 59 per cent, 43; 60 to 69 per cent, 25; 70 to 79 per cent, 133; 80 to 89 per cent, 69; 90 to 99 per cent, 405; 100 per cent, 338. Citizen station EW8564 received 50.6 per cent, 124 of 245 scheduled reports, rank 1,015 of 1,053.WHERE IT RANKS IN MONTANA, Oct 16THIS ONE: 50.6%, 124 OF 245, RANK 1,015 OF 1,053PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 910 to 1920 to 291130 to 3940 to 492950 to 594360 to 692570 to 7913380 to 896990 to 99405100338STATIONS, LOG SCALE
Chart of Citizen station EW8564's rank in Montana by how it reported, day by day, from 2026-10-05 to 2026-10-16: 2026-10-05 rank 937 of 979; 2026-10-06 rank 895 of 1,025; 2026-10-07 rank 836 of 1,027; 2026-10-08 rank 801 of 1,030; 2026-10-09 rank 800 of 1,048; 2026-10-10 rank 853 of 1,049; 2026-10-11 rank 834 of 1,054; 2026-10-12 rank 808 of 1,057; 2026-10-13 rank 853 of 1,059; 2026-10-14 rank 860 of 1,057; 2026-10-15 rank 1,003 of 1,056; 2026-10-16 rank 1,015 of 1,053.ITS RANK IN MONTANA, DAY BY DAYRANK, FIRST AT THE TOP15001,0001,500Oct 5Oct 7Oct 9Oct 11Oct 13Oct 15Oct 16
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%338
90 to 99%405
80 to 89%69
70 to 79%133
60 to 69%25
50 to 59%43
40 to 49%29
30 to 39%0
20 to 29%11
10 to 19%0
0 to 9%0
DayRankStations rankedShare received
Oct 16, 20261,0151,05350.6%
Oct 15, 20261,0031,05648.1%
Oct 14, 20268601,05757.2%
Oct 13, 20268531,05958.7%
Oct 12, 20268081,05759.8%
Oct 11, 20268341,05458.5%
Oct 10, 20268531,04954.4%
Oct 9, 20268001,04861.8%
Oct 8, 20268011,03057.1%
Oct 7, 20268361,02757.3%
Oct 6, 20268951,02552.2%
Oct 5, 202693797939.1%

Station report

Citizen station EW8564, 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 EW8564, 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 EW8564FIG. C THE WIND AT CITIZEN STATION EW8564PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE4GUST, 7 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECitizen station EW8564, the windSTATION REPORT · CWOP EW8564TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-16IDSR-EW8564-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

From the Field Book

2The column

Contents

At 3,323 ft above sea level, 11 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 26.50 inHg and the temperature at 47.1 F; the station's altimeter setting of 30.69 inHg means its barometer reads 27.18 inHg; it reports 42.0 F, 5.1 F colder than standard.

Section from sea level of where Citizen station EW8564 stands in the atmosphere, height to scale: the station 3,323 feet above sea level with 11 per cent of the air below it; the standard atmosphere's pressure there, 26.50 inches of mercury, and temperature, 47.1 degrees Fahrenheit; the altimeter setting of 30.69 and the station pressure it means, 27.18.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EW8564FIG. D WHERE CITIZEN STATION EW8564 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 EW856411 PER CENT OF THE AIR BELOW IT3,323 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 HERE26.50 inHgSTANDARD TEMPERATURE HERE47.1 FALTIMETER SETTING, REPORTED30.69 inHgITS BAROMETER READS27.18 inHgTEMPERATURE, REPORTED42.0 FTITLECitizen station EW8564, the columnSTATION REPORT · CWOP EW8564TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-16IDSR-EW8564-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

3The sun

Contents

On Oct 16 the noon sun stands 34 degrees above the horizon at 46.84 N, and the day is 10 h 41 min long. Level ground there takes 56 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station EW8564, angles true: on Oct 16 it stands 34 degrees above the horizon, against 67 at the June solstice, 43 at the equinoxes and 20 at the December solstice; the day is 10 h 41 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EW8564FIG. E THE SUN AT CITIZEN STATION EW8564ELEVATION 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 67°EQUINOXES 43°DECEMBER SOLSTICE 20°OCT 16, 34°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 41 MINLEVEL GROUND TAKES 56 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 46.84 N; THE SUN'S DECLINATION -9.1°TITLECitizen station EW8564, the sunSTATION REPORT · CWOP EW8564TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-16IDSR-EW8564-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 3,323 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station EW8564, each sensor drawn and labelled with what it read: air temperature, 42.0 f; precipitation gauge, 0.00 in today.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EW8564FIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE42.0 FPRECIPITATION GAUGE0.00 IN TODAYSCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station EW8564, the instrumentSTATION REPORT · CWOP EW8564TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-16IDSR-EW8564-4DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

Near Citizen station EW8564

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