Station report
SBD-15- 2.5 miles north of 15/215 interchange, in 3 sheets Drawn from the register, in the manner of the Field Book, and opened beside the plates that explain each part of it.
1 The column2 The sun3 The instrumentAt 2,906 ft above sea level, 10 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 26.91 inHg and the temperature at 48.6 F.
Section from sea level of where SBD-15- 2.5 miles north of 15/215 interchange stands in the atmosphere, height to scale: the station 2,906 feet above sea level with 10 per cent of the air below it; the standard atmosphere's pressure there, 26.91 inches of mercury, and temperature, 48.6 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 CF176 FIG. D WHERE SBD-15- 2.5 MILES NORTH OF 15/215 INTERCHANGE 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 SBD-15- 2.5 MILES NORTH OF 15/215 INTERCHANGE 10 PER CENT OF THE AIR BELOW IT 2,906 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 26.91 inHg STANDARD TEMPERATURE HERE 48.6 F TITLE SBD-15- 2.5 miles north of 15/215 interchange, the column STATION REPORT · RWIS CF176 TYPE SECTION SCALE HEIGHT TO SCALE REV FROM THE REGISTER SHEET 1 of 3 DATE 2026-10-16 ID SR-CF176-1 DRAWN AS linework on paper SOURCES FB-ENG-001, FB-ENG-003 On Oct 16 the noon sun stands 47 degrees above the horizon at 34.26 N, and the day is 11 h 10 min long. Level ground there takes 73 per cent of the noon sunlight a surface facing the sun would.
Elevation of the noon sun at SBD-15- 2.5 miles north of 15/215 interchange, angles true: on Oct 16 it stands 47 degrees above the horizon, against 79 at the June solstice, 56 at the equinoxes and 32 at the December solstice; the day is 11 h 10 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 CF176 FIG. E THE SUN AT SBD-15- 2.5 MILES NORTH OF 15/215 INTERCHANGE 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 79° EQUINOXES 56° DECEMBER SOLSTICE 32° OCT 16, 47° SOUTH ANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLY DAY LENGTH 11 H 10 MIN LEVEL GROUND TAKES 73 PER CENT OF THE NOON SUN A FACING SURFACE WOULD LATITUDE 34.26 N; THE SUN'S DECLINATION -9.1° TITLE SBD-15- 2.5 miles north of 15/215 interchange, the sun STATION REPORT · RWIS CF176 TYPE ELEVATION SCALE ANGLES TRUE REV FROM THE REGISTER SHEET 2 of 3 DATE 2026-10-16 ID SR-CF176-2 DRAWN AS linework on paper SOURCES FB-ENG-007 A road weather station, 2,906 ft above sea level. Its sensors, as its network builds them.
Elevation of a road weather station, SBD-15- 2.5 miles north of 15/215 interchange, each sensor drawn and labelled with what it read: no reading in the last day. 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 CF176 FIG. F THE INSTRUMENT ELEVATION OF A ROAD WEATHER STATION, EACH SENSOR WITH WHAT IT READ THE ROAD, IN SECTION PAVEMENT SENSOR, SET IN THE ROAD - PROBE UNDER THE ROAD - AIR TEMPERATURE ON THE TOWER - WIND AT THE TOP OF THE TOWER - SCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALE TITLE SBD-15- 2.5 miles north of 15/215 interchange, the instrument STATION REPORT · RWIS CF176 TYPE ELEVATION SCALE SCHEMATIC REV FROM THE REGISTER SHEET 3 of 3 DATE 2026-10-16 ID SR-CF176-3 DRAWN AS linework on paper SOURCES FB-INS-001 
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