Storm Station
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In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
AC3KO-13
Latitude
40.27000 N
Longitude
76.72000 W
Elevation
358 ft
Rank
1,150of 1,383 in Pennsylvania, Oct 16
Observed
1:37 AMEDT, 5 minutes ago
Air temperature
58F
Relative humidity
99%
Pressure
30.05inHg
Wind
0mph
Wind direction
23°
Precipitation this hour
0in
Precipitation today
0in

Ranking Statistics

On the radar over Citizen station AC3KO-13ReflectivityStorm 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. 1,550 instruments in Pennsylvania stand at one.

Station charts

Citizen station AC3KO-13 Report

Rank 1,150 of 1,383 in Pennsylvania, 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 score78.5of 100

Pennsylvania median
94.3the median score of 1,383 stations
Scoring higher
1,149stations in Pennsylvania
Sharing its score
4ranks 1,150 to 1,153
Points deducted
21.513.6 reports received, 4.4 continuity, 2.7 accuracy, 0.7 forecast check
Counted at the median
Forecast checknot measured at this station; Pennsylvania median 92.9
Next above
K3BAK-13rank 1,149; ahead on 247 score 78.6 against 78.5
Next below
FW5123rank 1,151; behind on reports received 61.1% against 58.3%

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 3561.121.4 of 35 pointsPennsylvania median 95.8308 of 504 scheduled reports received in 7 days
  2. Arrivalweight 10100.010.0 of 10 pointsPennsylvania median 94.8half its reports arrived within 17 s
  3. Continuityweight 1055.75.6 of 10 pointsPennsylvania median 100.0longest silence 4.1 h, on a schedule of one report every 20 min
  4. Accuracyweight 2086.417.3 of 20 pointsPennsylvania median 100.0its temperature against the airport station KMDT, 5.8 miles away, over 224 readings: typical difference 3.0 °F beyond a steady offset of -0.3 °F
  5. Instrument checksweight 15100.015.0 of 15 pointsPennsylvania median 100.00 of 224 readings failed their check against its reference station
  6. Forecast checkweight 10-9.3 of 10 points, at the medianPennsylvania median 92.9-

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 (60 min), none for 72 (24 h)
Accuracy
Full marks within 2.1 °F of its reference, typically, none beyond 8.6 °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
1,150of 1,383 in Pennsylvania, Oct 16
Time to reach Storm Station
17 s9 in 10 within 31 s
Against its reference, 30 days
-0.7 °Fcooler than the airport station KMDT, 5.8 miles away, on average over 251 readings; typical difference 3.6 °F; also compared with 2 other reference stations

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: 308 of 504 scheduled reports received, 61.1%.

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 1,383 ranked stations in Pennsylvania 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, 33; 10 to 19 per cent, 9; 20 to 29 per cent, 43; 30 to 39 per cent, 6; 40 to 49 per cent, 109; 50 to 59 per cent, 201; 60 to 69 per cent, 122; 70 to 79 per cent, 60; 80 to 89 per cent, 90; 90 to 99 per cent, 310; 100 per cent, 400. Citizen station AC3KO-13 received 61.1 per cent, 308 of 504 scheduled reports, rank 1,150 of 1,383.WHERE IT RANKS IN PENNSYLVANIA, Oct 16THIS ONE: 61.1%, 308 OF 504, RANK 1,150 OF 1,383PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 93310 to 19920 to 294330 to 39640 to 4910950 to 5920160 to 6912270 to 796080 to 899090 to 99310100400STATIONS, LOG SCALE
Chart of Citizen station AC3KO-13's rank in Pennsylvania by how it reported, day by day, from 2026-10-05 to 2026-10-16: 2026-10-05 rank 909 of 1,219; 2026-10-06 rank 1,030 of 1,252; 2026-10-07 rank 1,096 of 1,339; 2026-10-08 rank 1,132 of 1,356; 2026-10-09 rank 1,198 of 1,352; 2026-10-10 rank 1,196 of 1,352; 2026-10-11 rank 1,252 of 1,344; 2026-10-12 rank 1,256 of 1,368; 2026-10-13 rank 1,246 of 1,374; 2026-10-14 rank 1,225 of 1,372; 2026-10-15 rank 1,212 of 1,375; 2026-10-16 rank 1,150 of 1,383.ITS RANK IN PENNSYLVANIA, 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%400
90 to 99%310
80 to 89%90
70 to 79%60
60 to 69%122
50 to 59%201
40 to 49%109
30 to 39%6
20 to 29%43
10 to 19%9
0 to 9%33
DayRankStations rankedShare received
Oct 16, 20261,1501,38361.1%
Oct 15, 20261,2121,37555.7%
Oct 14, 20261,2251,37253.9%
Oct 13, 20261,2461,37450.1%
Oct 12, 20261,2561,36844.0%
Oct 11, 20261,2521,34443.6%
Oct 10, 20261,1961,35241.8%
Oct 9, 20261,1981,35241.4%
Oct 8, 20261,1321,35646.6%
Oct 7, 20261,0961,33944.5%
Oct 6, 20261,0301,25245.2%
Oct 5, 20269091,21954.0%

Station report

Citizen station AC3KO-13, 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 AC3KO-13, 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 AC3KO-13FIG. C THE WIND AT CITIZEN STATION AC3KO-13PLAN, 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 AC3KO-13, the windSTATION REPORT · CWOP AC3KO-13TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-16IDSR-AC3KO13-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

From the Field Book

2The column

Contents

At 358 ft above sea level, 1 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.54 inHg and the temperature at 57.7 F; the station's altimeter setting of 30.05 inHg means its barometer reads 29.66 inHg; it reports 58.0 F, 0.3 F warmer than standard.

Section from sea level of where Citizen station AC3KO-13 stands in the atmosphere, height to scale: the station 358 feet above sea level with 1 per cent of the air below it; the standard atmosphere's pressure there, 29.54 inches of mercury, and temperature, 57.7 degrees Fahrenheit; the altimeter setting of 30.05 and the station pressure it means, 29.66.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT AC3KO-13FIG. D WHERE CITIZEN STATION AC3KO-13 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 AC3KO-131 PER CENT OF THE AIR BELOW IT358 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 HERE29.54 inHgSTANDARD TEMPERATURE HERE57.7 FALTIMETER SETTING, REPORTED30.05 inHgITS BAROMETER READS29.66 inHgTEMPERATURE, REPORTED58.0 FTITLECitizen station AC3KO-13, the columnSTATION REPORT · CWOP AC3KO-13TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-16IDSR-AC3KO13-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

3The sun

Contents

On Oct 16 the noon sun stands 41 degrees above the horizon at 40.27 N, and the day is 10 h 58 min long. Level ground there takes 65 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station AC3KO-13, angles true: on Oct 16 it stands 41 degrees above the horizon, against 73 at the June solstice, 50 at the equinoxes and 26 at the December solstice; the day is 10 h 58 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT AC3KO-13FIG. E THE SUN AT CITIZEN STATION AC3KO-13ELEVATION 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 26°OCT 16, 41°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 58 MINLEVEL GROUND TAKES 65 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 40.27 N; THE SUN'S DECLINATION -9.1°TITLECitizen station AC3KO-13, the sunSTATION REPORT · CWOP AC3KO-13TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-16IDSR-AC3KO13-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 358 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station AC3KO-13, 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 AC3KO-13FIG. 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 AC3KO-13, the instrumentSTATION REPORT · CWOP AC3KO-13TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-16IDSR-AC3KO13-4DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

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