Storm Station
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In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
DW7873
Latitude
42.72000 N
Longitude
71.15000 W
Elevation
78 ft
Rank
605of 744 in Massachusetts, Oct 16
Observed
8:00 AMEDT, 9 minutes ago
Air temperature
52F
Relative humidity
79%
Pressure
29.94inHg
Wind
0mph
Gust
3mph
Wind direction
229°
Precipitation this hour
0in
Precipitation today
0in

Ranking Statistics

On the radar over Citizen station DW7873ReflectivityStorm 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. 1,023 instruments in Massachusetts stand at one.

Station charts

Citizen station DW7873 Report

Rank 605 of 744 in Massachusetts, 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 score78.0of 100

Massachusetts median
92.1the median score of 744 stations
Scoring higher
601stations in Massachusetts
Sharing its score
4ranks 602 to 605
Points deducted
22.017.4 reports received, 3.2 continuity, 1.4 forecast check
Counted at the median
Forecast checknot measured at this station; Massachusetts median 85.6
Next above
N1EVHrank 604; ahead on reports received 50.9% against 50.2%
Next below
EW6514rank 606; behind on 247 score 78.0 against 77.9

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 3550.317.6 of 35 pointsMassachusetts median 85.7338 of 672 scheduled reports received in 7 days
  2. Arrivalweight 10100.010.0 of 10 pointsMassachusetts median 100.0half its reports arrived within 18 s
  3. Continuityweight 1067.96.8 of 10 pointsMassachusetts median 100.0longest silence 2.1 h, on a schedule of one report every 15 min
  4. Accuracyweight 20100.020.0 of 20 pointsMassachusetts median 100.0its temperature against the airport station KLWM, 1.3 miles away, over 204 readings: typical difference 1.5 °F beyond a steady offset of -0.5 °F
  5. Instrument checksweight 15100.015.0 of 15 pointsMassachusetts median 100.00 of 204 readings failed their check against its reference station
  6. Forecast checkweight 10-8.6 of 10 points, at the medianMassachusetts median 85.6-

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 (45 min), none for 72 (18 h)
Accuracy
Full marks within 1.6 °F of its reference, typically, none beyond 8.1 °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
605of 744 in Massachusetts, Oct 16
Time to reach Storm Station
19 s9 in 10 within 30 s
Against its reference, 30 days
-0.5 °Fcooler than the airport station KLWM, 1.3 miles away, on average over 325 readings; typical difference 1.6 °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: 338 of 672 scheduled reports received, 50.2%.

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 744 ranked stations in Massachusetts 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, 3; 10 to 19 per cent, 5; 20 to 29 per cent, 13; 30 to 39 per cent, 4; 40 to 49 per cent, 60; 50 to 59 per cent, 170; 60 to 69 per cent, 22; 70 to 79 per cent, 51; 80 to 89 per cent, 93; 90 to 99 per cent, 112; 100 per cent, 211. Citizen station DW7873 received 50.2 per cent, 338 of 672 scheduled reports, rank 605 of 744.WHERE IT RANKS IN MASSACHUSETTS, Oct 16THIS ONE: 50.2%, 338 OF 672, RANK 605 OF 744PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9310 to 19520 to 291330 to 39440 to 496050 to 5917060 to 692270 to 795180 to 899390 to 99112100211STATIONS, LOG SCALE
Chart of Citizen station DW7873's rank in Massachusetts by how it reported, day by day, from 2026-10-05 to 2026-10-16: 2026-10-05 rank 598 of 697; 2026-10-06 rank 654 of 719; 2026-10-07 rank 605 of 722; 2026-10-08 rank 619 of 733; 2026-10-09 rank 570 of 725; 2026-10-10 rank 565 of 726; 2026-10-11 rank 633 of 729; 2026-10-12 rank 609 of 726; 2026-10-13 rank 614 of 730; 2026-10-14 rank 643 of 735; 2026-10-15 rank 611 of 741; 2026-10-16 rank 605 of 744.ITS RANK IN MASSACHUSETTS, DAY BY DAYRANK, FIRST AT THE TOP1200400600800Oct 5Oct 7Oct 9Oct 11Oct 13Oct 15Oct 16
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%211
90 to 99%112
80 to 89%93
70 to 79%51
60 to 69%22
50 to 59%170
40 to 49%60
30 to 39%4
20 to 29%13
10 to 19%5
0 to 9%3
DayRankStations rankedShare received
Oct 16, 202660574450.2%
Oct 15, 202661174149.5%
Oct 14, 202664373549.2%
Oct 13, 202661473049.7%
Oct 12, 202660972647.7%
Oct 11, 202663372945.7%
Oct 10, 202656572651.5%
Oct 9, 202657072551.3%
Oct 8, 202661973348.0%
Oct 7, 202660572249.7%
Oct 6, 202665471944.3%
Oct 5, 202659869746.9%

Station report

Citizen station DW7873, 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 DW7873, 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 DW7873FIG. C THE WIND AT CITIZEN STATION DW7873PLAN, 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 DW7873, the windSTATION REPORT · CWOP DW7873TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-16IDSR-DW7873-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

From the Field Book

2The column

Contents

At 78 ft above sea level, 0 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.84 inHg and the temperature at 58.7 F; the station's altimeter setting of 29.94 inHg means its barometer reads 29.86 inHg; it reports 52.0 F, 6.7 F colder than standard.

Section from sea level of where Citizen station DW7873 stands in the atmosphere, height to scale: the station 78 feet above sea level with 0 per cent of the air below it; the standard atmosphere's pressure there, 29.84 inches of mercury, and temperature, 58.7 degrees Fahrenheit; the altimeter setting of 29.94 and the station pressure it means, 29.86.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DW7873FIG. D WHERE CITIZEN STATION DW7873 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 DW78730 PER CENT OF THE AIR BELOW IT78 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 HERE29.84 inHgSTANDARD TEMPERATURE HERE58.7 FALTIMETER SETTING, REPORTED29.94 inHgITS BAROMETER READS29.86 inHgTEMPERATURE, REPORTED52.0 FTITLECitizen station DW7873, the columnSTATION REPORT · CWOP DW7873TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-16IDSR-DW7873-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

3The sun

Contents

On Oct 16 the noon sun stands 38 degrees above the horizon at 42.72 N, and the day is 10 h 52 min long. Level ground there takes 62 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station DW7873, angles true: on Oct 16 it stands 38 degrees above the horizon, against 71 at the June solstice, 47 at the equinoxes and 24 at the December solstice; the day is 10 h 52 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DW7873FIG. E THE SUN AT CITIZEN STATION DW7873ELEVATION 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 47°DECEMBER SOLSTICE 24°OCT 16, 38°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 52 MINLEVEL GROUND TAKES 62 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 42.72 N; THE SUN'S DECLINATION -9.1°TITLECitizen station DW7873, the sunSTATION REPORT · CWOP DW7873TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-16IDSR-DW7873-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 78 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station DW7873, each sensor drawn and labelled with what it read: air temperature, 52.0 f; precipitation gauge, 0.00 in today.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DW7873FIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE52.0 FPRECIPITATION GAUGE0.00 IN TODAYSCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station DW7873, the instrumentSTATION REPORT · CWOP DW7873TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-16IDSR-DW7873-4DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

Near Citizen station DW7873

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