Storm Station

Beside a road

RWIS network, identified by the register

Identifier
VTLDW
Latitude
43.35500 N
Longitude
72.75340 W
Elevation
2,227 ft
Rank
350of 351 in Vermont, Oct 6
Road surface
dry
Air temperature
37.6F
Dew point
32.6F
Relative humidity
82%
Wind
4mph
Gust
11mph
Wind direction
320°
Pavement temperature
43.9F

Beside a road

Drawn as the kind of place it stands at. 56 instruments in Vermont stand at one.

Station report

Rt 100 - Ludlow, 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.

1The column

Contents

At 2,227 ft above sea level, 8 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 27.59 inHg and the temperature at 51.1 F.

Section from sea level of where Rt 100 - Ludlow stands in the atmosphere, height to scale: the station 2,227 feet above sea level with 8 per cent of the air below it; the standard atmosphere's pressure there, 27.59 inches of mercury, and temperature, 51.1 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT VTLDWFIG. D WHERE RT 100 - LUDLOW 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 ATMOSPHERERT 100 - LUDLOW8 PER CENT OF THE AIR BELOW IT2,227 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 HERE27.59 inHgSTANDARD TEMPERATURE HERE51.1 FTITLERt 100 - Ludlow, the columnSTATION REPORT · RWIS VTLDWTYPESECTIONSCALEHEIGHT TO SCALEREVFROM THE REGISTER SHEET 1 of 3DATE2026-10-06IDSR-VTLDW-1DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

2The sun

Contents

On Oct 6 the noon sun stands 41 degrees above the horizon at 43.35 N, and the day is 11 h 20 min long. Level ground there takes 66 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Rt 100 - Ludlow, angles true: on Oct 6 it stands 41 degrees above the horizon, against 70 at the June solstice, 47 at the equinoxes and 23 at the December solstice; the day is 11 h 20 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT VTLDWFIG. E THE SUN AT RT 100 - LUDLOWELEVATION 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 70°EQUINOXES 47°DECEMBER SOLSTICE 23°OCT 6, 41°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 20 MINLEVEL GROUND TAKES 66 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 43.35 N; THE SUN'S DECLINATION -5.3°TITLERt 100 - Ludlow, the sunSTATION REPORT · RWIS VTLDWTYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 2 of 3DATE2026-10-06IDSR-VTLDW-2DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

3The instrument

Contents

A road weather station, 2,227 ft above sea level. Its sensors, as its network builds them.

Elevation of a road weather station, Rt 100 - Ludlow, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT VTLDWFIG. F THE INSTRUMENTELEVATION OF A ROAD WEATHER STATION, EACH SENSOR WITH WHAT IT READTHE ROAD, IN SECTIONPAVEMENT 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 SCALETITLERt 100 - Ludlow, the instrumentSTATION REPORT · RWIS VTLDWTYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 3 of 3DATE2026-10-06IDSR-VTLDW-3DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

What this instrument measures for

2 places read it as one of the nearest to it.

Near Rt 100 - Ludlow