Station report
Citizen station W7SF, 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.
1 The wind2 The column3 The sun4 The instrumentCalm.
Plan of the wind at Citizen station W7SF, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked. 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D E E © 2026 STORM STATION 247 THE FIELD BOOK STATION REPORT W7SF FIG. C THE WIND AT CITIZEN STATION W7SF PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALE N E S W THE STATION CALM BEAUFORT FORCE LEAST WIND, MPH 0 CALM 0 NOW, 0 MPH 1 LIGHT AIR 1 2 LIGHT BREEZE 4 3 GENTLE BREEZE 8 4 MODERATE BREEZE 13 5 FRESH BREEZE 19 6 STRONG BREEZE 25 7 NEAR GALE 32 8 GALE 39 9 STRONG GALE 47 10 STORM 55 11 VIOLENT STORM 64 12 HURRICANE FORCE 73 TITLE Citizen station W7SF, the wind STATION REPORT · CWOP W7SF TYPE PLAN north up SCALE NOT TO SCALE REV AS REPORTED SHEET 1 of 4 DATE 2026-10-06 ID SR-W7SF-1 DRAWN AS linework on paper SOURCES FB-EVT-150, FB-ENG-008 At 860 ft above sea level, 3 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.00 inHg and the temperature at 55.9 F; the station's altimeter setting of 30.14 inHg means its barometer reads 29.22 inHg; it reports 49.0 F, 6.9 F colder than standard.
Section from sea level of where Citizen station W7SF stands in the atmosphere, height to scale: the station 860 feet above sea level with 3 per cent of the air below it; the standard atmosphere's pressure there, 29.00 inches of mercury, and temperature, 55.9 degrees Fahrenheit; the altimeter setting of 30.14 and the station pressure it means, 29.22. 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D E E © 2026 STORM STATION 247 THE FIELD BOOK STATION REPORT W7SF FIG. D WHERE CITIZEN STATION W7SF STANDS IN THE ATMOSPHERE SECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHERE FT ABOVE SEA LEVEL 0 5,000 10,000 15,000 SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHERE CITIZEN STATION W7SF 3 PER CENT OF THE AIR BELOW IT 860 FT 10 PER CENT OF THE AIR BELOW, 2,890 FT 20 PER CENT OF THE AIR BELOW, 6,050 FT 30 PER CENT OF THE AIR BELOW, 9,540 FT 40 PER CENT OF THE AIR BELOW, 13,470 FT STANDARD PRESSURE HERE 29.00 inHg STANDARD TEMPERATURE HERE 55.9 F ALTIMETER SETTING, REPORTED 30.14 inHg ITS BAROMETER READS 29.22 inHg TEMPERATURE, REPORTED 49.0 F TITLE Citizen station W7SF, the column STATION REPORT · CWOP W7SF TYPE SECTION SCALE HEIGHT TO SCALE REV AS REPORTED SHEET 2 of 4 DATE 2026-10-06 ID SR-W7SF-2 DRAWN AS linework on paper SOURCES FB-ENG-001, FB-ENG-003 On Oct 6 the noon sun stands 46 degrees above the horizon at 39.01 N, and the day is 11 h 25 min long. Level ground there takes 72 per cent of the noon sunlight a surface facing the sun would.
Elevation of the noon sun at Citizen station W7SF, angles true: on Oct 6 it stands 46 degrees above the horizon, against 74 at the June solstice, 51 at the equinoxes and 28 at the December solstice; the day is 11 h 25 min long. 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D E E © 2026 STORM STATION 247 THE FIELD BOOK STATION REPORT W7SF FIG. E THE SUN AT CITIZEN STATION W7SF ELEVATION LOOKING WEST, SOUTH TO THE LEFT: THE NOON SUN ON THE DAY OF THE REPORT, AND AT THE SOLSTICES AND EQUINOXES; ANGLES TRUE THE STATION JUNE SOLSTICE 74° EQUINOXES 51° DECEMBER SOLSTICE 28° OCT 6, 46° SOUTH ANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLY DAY LENGTH 11 H 25 MIN LEVEL GROUND TAKES 72 PER CENT OF THE NOON SUN A FACING SURFACE WOULD LATITUDE 39.01 N; THE SUN'S DECLINATION -5.3° TITLE Citizen station W7SF, the sun STATION REPORT · CWOP W7SF TYPE ELEVATION SCALE ANGLES TRUE REV AS REPORTED SHEET 3 of 4 DATE 2026-10-06 ID SR-W7SF-3 DRAWN AS linework on paper SOURCES FB-ENG-007 A weather instrument, 860 ft above sea level. Its latest report is written on the sensors that made it.
Elevation of the instrument, Citizen station W7SF, each sensor drawn and labelled with what it read: air temperature, 49.0 f; precipitation gauge, 0.00 in today. 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D E E © 2026 STORM STATION 247 THE FIELD BOOK STATION REPORT W7SF FIG. F THE INSTRUMENT ELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READ ANTENNA, SENDING BY SATELLITE - AIR TEMPERATURE 49.0 F PRECIPITATION GAUGE 0.00 IN TODAY SCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALE TITLE Citizen station W7SF, the instrument STATION REPORT · CWOP W7SF TYPE ELEVATION SCALE SCHEMATIC REV AS REPORTED SHEET 4 of 4 DATE 2026-10-06 ID SR-W7SF-4 DRAWN AS linework on paper SOURCES FB-INS-001 
FB-EVT-150, Fig. AHigh wind
FB-ENG-008, Fig. ACoriolis as geometry
FB-ENG-001, Fig. AAtmosphere in section
FB-ENG-003, Fig. CHydrostatic balance
FB-ENG-007, Fig. ARadiation budget
FB-INS-001, Fig. AWhat an instrument is