Storm Station

In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
EW8307
Latitude
42.29000 N
Longitude
71.73000 W
Elevation
473 ft
Rank
523of 719 in Massachusetts, Oct 6
Air temperature
47F
Relative humidity
73%
Pressure
29.87inHg
Wind
0mph
Gust
3mph
Wind direction
309°
Precipitation this hour
0in
Precipitation today
0in

On the radar over Citizen station EW8307ReflectivityStorm 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. 1,015 instruments in Massachusetts stand at one.

Station charts

Citizen station EW8307 Report

Rank 523 of 719 in Massachusetts, 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 score82.8of 100

  1. Reports receivedweight 3557.116 of 28 scheduled reports received in 7 days
  2. Arrivalweight 10100.0half its reports arrived within 21 s
  3. Continuityweight 1078.2longest silence 9 h, on a schedule of one report every 1.5 h
  4. Accuracyweight 20--
  5. Instrument checksweight 15--
  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
523of 719 in Massachusetts, Oct 6
Time to reach Storm Station
23 s9 in 10 within 30 s
Against its reference, 30 days
+1.1 °Fwarmer than the airport station KORH, 7.4 miles away, on average over 13 readings; typical difference 2.5 °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: 16 of 28 scheduled reports received, 57.1%.

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 719 ranked stations in Massachusetts 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, 4; 10 to 19 per cent, 13; 20 to 29 per cent, 18; 30 to 39 per cent, 7; 40 to 49 per cent, 66; 50 to 59 per cent, 96; 60 to 69 per cent, 64; 70 to 79 per cent, 15; 80 to 89 per cent, 98; 90 to 99 per cent, 130; 100 per cent, 208. Citizen station EW8307 received 57.1 per cent, 16 of 28 scheduled reports, rank 523 of 719.WHERE IT RANKS IN MASSACHUSETTS, Oct 6THIS ONE: 57.1%, 16 OF 28, RANK 523 OF 719PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9410 to 191320 to 291830 to 39740 to 496650 to 599660 to 696470 to 791580 to 899890 to 99130100208STATIONS, LOG SCALE
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%208
90 to 99%130
80 to 89%98
70 to 79%15
60 to 69%64
50 to 59%96
40 to 49%66
30 to 39%7
20 to 29%18
10 to 19%13
0 to 9%4

Station report

Citizen station EW8307, 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 EW8307, 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 EW8307FIG. C THE WIND AT CITIZEN STATION EW8307PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR1GUST, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECitizen station EW8307, the windSTATION REPORT · CWOP EW8307TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-06IDSR-EW8307-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

From the Field Book

2The column

Contents

At 473 ft above sea level, 2 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.41 inHg and the temperature at 57.3 F; the station's altimeter setting of 29.87 inHg means its barometer reads 29.36 inHg; it reports 47.0 F, 10.3 F colder than standard.

Section from sea level of where Citizen station EW8307 stands in the atmosphere, height to scale: the station 473 feet above sea level with 2 per cent of the air below it; the standard atmosphere's pressure there, 29.41 inches of mercury, and temperature, 57.3 degrees Fahrenheit; the altimeter setting of 29.87 and the station pressure it means, 29.36.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EW8307FIG. D WHERE CITIZEN STATION EW8307 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 EW83072 PER CENT OF THE AIR BELOW IT473 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 HERE29.41 inHgSTANDARD TEMPERATURE HERE57.3 FALTIMETER SETTING, REPORTED29.87 inHgITS BAROMETER READS29.36 inHgTEMPERATURE, REPORTED47.0 FTITLECitizen station EW8307, the columnSTATION REPORT · CWOP EW8307TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-06IDSR-EW8307-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

3The sun

Contents

On Oct 6 the noon sun stands 42 degrees above the horizon at 42.29 N, and the day is 11 h 21 min long. Level ground there takes 67 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station EW8307, angles true: on Oct 6 it stands 42 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 21 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EW8307FIG. E THE SUN AT CITIZEN STATION EW8307ELEVATION 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 6, 42°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 21 MINLEVEL GROUND TAKES 67 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 42.29 N; THE SUN'S DECLINATION -5.3°TITLECitizen station EW8307, the sunSTATION REPORT · CWOP EW8307TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-06IDSR-EW8307-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 473 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station EW8307, each sensor drawn and labelled with what it read: air temperature, 47.0 f; precipitation gauge, 0.00 in today.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EW8307FIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE47.0 FPRECIPITATION GAUGE0.00 IN TODAYSCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station EW8307, the instrumentSTATION REPORT · CWOP EW8307TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-06IDSR-EW8307-4DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

Near Citizen station EW8307

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