Storm Station
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Beside a road

RWIS network, identified by the register

Identifier
SS1841
Latitude
41.36940 N
Longitude
89.05890 W
Elevation
-
Rank
950of 1,393 in Illinois, Oct 16
Observed
7:00 AMCDT, 48 minutes ago
Air temperature
46F
Dew point
40F
Relative humidity
79%

Ranking Statistics

Beside a road

Drawn as the kind of place it stands at. 37 instruments in Illinois stand at one.

Station report

- 39 MP 81 Lee County, in 2 sheets

Drawn from the register, in the manner of the Field Book, and opened beside the plates that explain each part of it.

1The sun

Contents

On Oct 16 the noon sun stands 40 degrees above the horizon at 41.37 N, and the day is 10 h 55 min long. Level ground there takes 64 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at - 39 MP 81 Lee County, angles true: on Oct 16 it stands 40 degrees above the horizon, against 72 at the June solstice, 49 at the equinoxes and 25 at the December solstice; the day is 10 h 55 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SS1841FIG. E THE SUN AT - 39 MP 81 LEE COUNTYELEVATION 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 72°EQUINOXES 49°DECEMBER SOLSTICE 25°OCT 16, 40°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 55 MINLEVEL GROUND TAKES 64 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 41.37 N; THE SUN'S DECLINATION -9.1°TITLE- 39 MP 81 Lee County, the sunSTATION REPORT · RWIS SS1841TYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 1 of 2DATE2026-10-16IDSR-SS1841-1DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

2The instrument

Contents

A road weather station. Its sensors, as its network builds them.

Elevation of a road weather station, - 39 MP 81 Lee County, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SS1841FIG. 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 SCALETITLE- 39 MP 81 Lee County, the instrumentSTATION REPORT · RWIS SS1841TYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 2 of 2DATE2026-10-16IDSR-SS1841-2DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

Near - 39 MP 81 Lee County