Station report
Fortuna, in 5 sheets Drawn from its report of Oct 16, 2026, 2:00 AM local time, in the manner of the Field Book, and opened beside the plates that explain each part of it.
1 The air2 The wind3 The column4 The sun5 The instrument74.3 F with a dew point of 72.4 F, 94 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 400 ft up.
Chart of the air at Fortuna: temperature 74.3 degrees Fahrenheit and dew point 72.4, 94 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 400 feet above the station; height to scale. 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 S2122 FIG. B THE AIR AT FORTUNA THE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALE FT ABOVE THE STATION 0 1,000 2,000 3,000 60 F 70 F 80 F 90 F SATURATES 400 FT ABOVE THE STATION, AT 71.9 F TEMPERATURE AND DEW POINT 74.3 F, 72.4 F RELATIVE HUMIDITY 94 PER CENT THE AIR COOLS ABOUT 5.4 F EACH 1,000 FT IT RISES, AND ITS DEW POINT ABOUT 1 F SOLID: THE LIFTED AIR'S TEMPERATURE; DASHED: ITS DEW POINT TITLE Fortuna, the air STATION REPORT · SCAN S2122 TYPE CHART SCALE HEIGHT TO SCALE REV AS REPORTED SHEET 1 of 5 DATE 2026-10-16 ID SR-S2122-1 DRAWN AS linework on paper SOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005 From the north northwest (346 degrees) at 2 mph, gusting 4 mph: force 1, a light air on the Beaufort scale. The strongest gust today was 4 mph.
Plan of the wind at Fortuna, north up: blowing from 346 degrees, the north northwest, at 2 miles an hour, gusting 4; beside it the Beaufort scale from calm to hurricane force, force 1, light air, 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 S2122 FIG. C THE WIND AT FORTUNA PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALE N E S W THE STATION FROM 346° BEAUFORT FORCE LEAST WIND, MPH 0 CALM 0 1 LIGHT AIR 1 NOW, 2 MPH 2 LIGHT BREEZE 4 GUST, 4 MPH 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 Fortuna, the wind STATION REPORT · SCAN S2122 TYPE PLAN north up SCALE NOT TO SCALE REV AS REPORTED SHEET 2 of 5 DATE 2026-10-16 ID SR-S2122-2 DRAWN AS linework on paper SOURCES FB-EVT-150, FB-ENG-008 At 93 ft above sea level, 0 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.82 inHg and the temperature at 58.7 F; it reports 74.3 F, 15.6 F warmer than standard.
Section from sea level of where Fortuna stands in the atmosphere, height to scale: the station 93 feet above sea level with 0 per cent of the air below it; the standard atmosphere's pressure there, 29.82 inches of mercury, and temperature, 58.7 degrees Fahrenheit. 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 S2122 FIG. D WHERE FORTUNA 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 FORTUNA 0 PER CENT OF THE AIR BELOW IT 93 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 29.82 inHg STANDARD TEMPERATURE HERE 58.7 F TEMPERATURE, REPORTED 74.3 F TITLE Fortuna, the column STATION REPORT · SCAN S2122 TYPE SECTION SCALE HEIGHT TO SCALE REV AS REPORTED SHEET 3 of 5 DATE 2026-10-16 ID SR-S2122-3 DRAWN AS linework on paper SOURCES FB-ENG-001, FB-ENG-003 On Oct 16 the noon sun stands 63 degrees above the horizon at 18.02 N, and the day is 11 h 36 min long. Level ground there takes 89 per cent of the noon sunlight a surface facing the sun would.
Elevation of the noon sun at Fortuna, angles true: on Oct 16 it stands 63 degrees above the horizon, against 85 at the June solstice, 72 at the equinoxes and 49 at the December solstice; the day is 11 h 36 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 S2122 FIG. E THE SUN AT FORTUNA 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 85° EQUINOXES 72° DECEMBER SOLSTICE 49° OCT 16, 63° SOUTH ANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLY DAY LENGTH 11 H 36 MIN LEVEL GROUND TAKES 89 PER CENT OF THE NOON SUN A FACING SURFACE WOULD LATITUDE 18.02 N; THE SUN'S DECLINATION -9.1° TITLE Fortuna, the sun STATION REPORT · SCAN S2122 TYPE ELEVATION SCALE ANGLES TRUE REV AS REPORTED SHEET 4 of 5 DATE 2026-10-16 ID SR-S2122-4 DRAWN AS linework on paper SOURCES FB-ENG-007 A weather instrument, 93 ft above sea level. Its report of Oct 16, 2026, 2:00 AM local time is written on the sensors that made it.
Elevation of the instrument, Fortuna, each sensor drawn and labelled with what it read: antenna, sending by satellite, last heard oct 16, 2026, 2:00 am local time; air temperature, 74.3 f, dew point 72.4 f. 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 S2122 FIG. F THE INSTRUMENT ELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READ, OCT 16, 2026, 2:00 AM LOCAL TIME ANTENNA, SENDING BY SATELLITE LAST HEARD OCT 16, 2026, 2:00 AM LOCAL TIME AIR TEMPERATURE 74.3 F, DEW POINT 72.4 F PRECIPITATION GAUGE - SCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALE TITLE Fortuna, the instrument STATION REPORT · SCAN S2122 TYPE ELEVATION SCALE SCHEMATIC REV AS REPORTED SHEET 5 of 5 DATE 2026-10-16 ID SR-S2122-5 DRAWN AS linework on paper SOURCES FB-INS-001 
FB-WAT-020, Fig. AFog types
FB-WAT-002, Fig. CHumidity variables
FB-ENG-011, Fig. AWater vapour as a gas
FB-ENG-005, Fig. ALapse rates and stability
