Storm Station

Beside a road

RWIS network, identified by the register

Identifier
SS0536
Latitude
41.38690 N
Longitude
89.70310 W
Elevation
-
Rank
1,128of 1,162 in Illinois, Oct 4
Road surface
moist
Air temperature
50F
Dew point
48F
Relative humidity
93%
Pavement temperature
36F

On the radar over I-80 @ Hennepin Canal M.P. 44ReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

Beside a road

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

Station charts

I-80 @ Hennepin Canal M.P. 44 Report

Rank 1,128 of 1,162 in Illinois, Oct 4. The 247 rank orders a state's stations by their 247 score out of 100: how reliably they report, how accurate their readings are against a reference station, how their readings pass their checks, and how they stand against the forecast.

247 score63.0of 100

  1. Reports receivedweight 3512.282 of 672 scheduled reports received in 7 days
  2. Arrivalweight 1050.2half its reports arrived within 35 min
  3. Continuityweight 1095.5longest silence 52 min, on a schedule of one report every 15 min
  4. Accuracyweight 20--
  5. Instrument checksweight 15--
  6. Forecast checkweight 10--

The score is the weighted mean of its six parts, from the last 7 days. How a station is ranked sets out each part.

Rank
1,128of 1,162 in Illinois, Oct 4
Days reported, 30 days
0 of 30
Time to reach Storm Station
35 min9 in 10 within 39 min

The reports received are counted from the network's own archive of this station's reports. Its 247 rank is counted from Storm Station's own record, which holds less than 7 days of it so far: 82 of 672 scheduled reports received, 12.2%.

Chart of the 1,162 ranked stations in Illinois on Oct 4 by the share of their scheduled reports received in Storm Station's own record, up to 7 days, in tenths: 0 to 9 per cent, 1; 10 to 19 per cent, 32; 20 to 29 per cent, 2; 30 to 39 per cent, 25; 40 to 49 per cent, 12; 50 to 59 per cent, 12; 60 to 69 per cent, 200; 70 to 79 per cent, 22; 80 to 89 per cent, 33; 90 to 99 per cent, 318; 100 per cent, 505. I-80 @ Hennepin Canal M.P. 44 received 12.2 per cent, 82 of 672 scheduled reports, rank 1,128 of 1,162.WHERE IT RANKS IN ILLINOIS, Oct 4THIS ONE: 12.2%, 82 OF 672, RANK 1,128 OF 1,162PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9110 to 193220 to 29230 to 392540 to 491250 to 591260 to 6920070 to 792280 to 893390 to 99318100505STATIONS, LOG SCALE
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%505
90 to 99%318
80 to 89%33
70 to 79%22
60 to 69%200
50 to 59%12
40 to 49%12
30 to 39%25
20 to 29%2
10 to 19%32
0 to 9%1

Station report

I-80 @ Hennepin Canal M.P. 44, 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 4 the noon sun stands 44 degrees above the horizon at 41.39 N, and the day is 11 h 28 min long. Level ground there takes 70 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at I-80 @ Hennepin Canal M.P. 44, angles true: on Oct 4 it stands 44 degrees above the horizon, against 72 at the June solstice, 49 at the equinoxes and 25 at the December solstice; the day is 11 h 28 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SS0536FIG. E THE SUN AT I-80 @ HENNEPIN CANAL M.P. 44ELEVATION 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 4, 44°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 28 MINLEVEL GROUND TAKES 70 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 41.39 N; THE SUN'S DECLINATION -4.6°TITLEI-80 @ Hennepin Canal M.P. 44, the sunSTATION REPORT · RWIS SS0536TYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 1 of 2DATE2026-10-04IDSR-SS0536-1DRAWN 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, I-80 @ Hennepin Canal M.P. 44, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SS0536FIG. 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 SCALETITLEI-80 @ Hennepin Canal M.P. 44, the instrumentSTATION REPORT · RWIS SS0536TYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 2 of 2DATE2026-10-04IDSR-SS0536-2DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

The instrumentWhat an instrument is FB-INS-001Stevenson screen and siting FB-INS-009

What it seesLapse rates and stability FB-ENG-005Water vapour as a gas FB-ENG-011Blizzard FB-EVT-081Ice storm FB-EVT-084Heat wave and heat dome FB-EVT-130Fire weather FB-EVT-139High wind FB-EVT-150Humidity variables FB-WAT-002Fog types FB-WAT-020

Near I-80 @ Hennepin Canal M.P. 44

Gauges

Weather instruments

Places