Storm Station

In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
CW7500
Latitude
42.23000 N
Longitude
71.42000 W
Elevation
362 ft
Rank
-
Air temperature
45F
Relative humidity
62%
Pressure
29.99inHg
Wind
2mph
Gust
6mph
Wind direction
245°
Precipitation this hour
0in
Precipitation today
0in

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 report

Citizen station CW7500, 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

From the west southwest (245 degrees) at 2 mph, gusting 6 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Citizen station CW7500, north up: blowing from 245 degrees, the west southwest, at 2 miles an hour, gusting 6; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CW7500FIG. C THE WIND AT CITIZEN STATION CW7500PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 245°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 2 MPH2LIGHT BREEZE4GUST, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECitizen station CW7500, the windSTATION REPORT · CWOP CW7500TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-06IDSR-CW7500-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

From the Field Book

2The column

Contents

At 362 ft above sea level, 1 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.53 inHg and the temperature at 57.7 F; the station's altimeter setting of 29.99 inHg means its barometer reads 29.60 inHg; it reports 45.0 F, 12.7 F colder than standard.

Section from sea level of where Citizen station CW7500 stands in the atmosphere, height to scale: the station 362 feet above sea level with 1 per cent of the air below it; the standard atmosphere's pressure there, 29.53 inches of mercury, and temperature, 57.7 degrees Fahrenheit; the altimeter setting of 29.99 and the station pressure it means, 29.60.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CW7500FIG. D WHERE CITIZEN STATION CW7500 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 CW75001 PER CENT OF THE AIR BELOW IT362 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 HERE29.53 inHgSTANDARD TEMPERATURE HERE57.7 FALTIMETER SETTING, REPORTED29.99 inHgITS BAROMETER READS29.60 inHgTEMPERATURE, REPORTED45.0 FTITLECitizen station CW7500, the columnSTATION REPORT · CWOP CW7500TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-06IDSR-CW7500-2DRAWN 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 42.23 N, and the day is 11 h 21 min long. Level ground there takes 68 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station CW7500, 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 CW7500FIG. E THE SUN AT CITIZEN STATION CW7500ELEVATION 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 68 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 42.23 N; THE SUN'S DECLINATION -5.3°TITLECitizen station CW7500, the sunSTATION REPORT · CWOP CW7500TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-06IDSR-CW7500-3DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

4The instrument

Contents

A weather instrument, 362 ft above sea level. Its latest report is written on the sensors that made it.

Elevation of the instrument, Citizen station CW7500, each sensor drawn and labelled with what it read: air temperature, 45.0 f; precipitation gauge, 0.00 in today.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CW7500FIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE45.0 FPRECIPITATION GAUGE0.00 IN TODAYSCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station CW7500, the instrumentSTATION REPORT · CWOP CW7500TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 4 of 4DATE2026-10-06IDSR-CW7500-4DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

Near Citizen station CW7500