Storm Station
Sign in

At a river or reservoir gauge

DCP network, identified by the register

Identifier
413548087395901
Latitude
41.59667 N
Longitude
87.66639 W
Elevation
-
Rank
1,035of 1,393 in Illinois, Oct 16
Observed
4:15 AMCDT, 27 minutes ago
Precipitation in the gauge's latest reading
0in

Ranking Statistics

On the radar over Rain Gage At Calumet Union Dr Canal Nr MarkhamReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

At a river or reservoir gauge

Drawn as the kind of place it stands at. 137 instruments in Illinois stand at one.

Station charts

Rain Gage At Calumet Union Dr Canal Nr Markham Report

Rank 1,035 of 1,393 in Illinois, Oct 16. 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.

Ranking Statistics

247 score88.9of 100

Illinois median
95.9the median score of 1,393 stations
Scoring higher
1,031stations in Illinois
Sharing its score
4ranks 1,032 to 1,035
Points deducted
11.19.0 reports received, 1.6 arrival, 0.5 forecast check
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; Illinois median 100.0, 100.0, 94.7
Next above
IL-MCL-38rank 1,034; ahead on reports received 85.7% against 74.4%
Next below
BSII2rank 1,036; behind on 247 score 88.9 against 88.8

Equal scores are ordered by the share of scheduled reports received, then the reports due in the week (the longer record first), then the median arrival, then the longest silence.

  1. Reports receivedweight 3574.426.0 of 35 pointsIllinois median 99.1500 of 672 scheduled reports received in 7 days
  2. Arrivalweight 1084.48.4 of 10 pointsIllinois median 96.3half its reports arrived within 18 min
  3. Continuityweight 10100.010.0 of 10 pointsIllinois median 100.0longest silence 45 min, on a schedule of one report every 15 min
  4. Accuracyweight 20-20.0 of 20 points, at the medianIllinois median 100.0-
  5. Instrument checksweight 15-15.0 of 15 points, at the medianIllinois median 100.0-
  6. Forecast checkweight 10-9.5 of 10 points, at the medianIllinois median 94.7-

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

How each part is scored
Reports received
Full marks for every scheduled report received, none for none, in proportion between
Arrival
Full marks for a median arrival within 10 min, none at 60 min
Continuity
Full marks for a longest silence of 3 reports or less (45 min), none for 72 (18 h)
Accuracy
Full marks within 1.5 °F of its reference, typically, none beyond 8.0 °F
Instrument checks
Full marks for no reading failed, none for 5 per cent or more
Forecast check
Full marks within 2 °F of the forecast on average, none at 8 °F
Rank
1,035of 1,393 in Illinois, Oct 16
Schedule
every 15 minon the hour's :00, :15 and :30
Reports received, 24 hours
71 of 9673.9% of its schedule
Reports received, 7 days
500 of 67274.4% of its schedule
Days reported, 30 days
-
Longest silence, 7 days
45 minfrom Oct 10, 8:00 AM
Latest report
Oct 16, 9:15 AMlocal time
Time to reach Storm Station
18 min9 in 10 within 23 min

From Storm Station's own record of every report it heard from this station.

Its schedule is one report every 15 min, 96 in 24 hours. Two reports in the same 15 min count as one received.

Chart of the 1,393 ranked stations in Illinois on Oct 16 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, 2; 10 to 19 per cent, 8; 20 to 29 per cent, 28; 30 to 39 per cent, 5; 40 to 49 per cent, 83; 50 to 59 per cent, 144; 60 to 69 per cent, 25; 70 to 79 per cent, 91; 80 to 89 per cent, 143; 90 to 99 per cent, 339; 100 per cent, 525. Rain Gage At Calumet Union Dr Canal Nr Markham received 74.4 per cent, 500 of 672 scheduled reports, rank 1,035 of 1,393.WHERE IT RANKS IN ILLINOIS, Oct 16THIS ONE: 74.4%, 500 OF 672, RANK 1,035 OF 1,393PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9210 to 19820 to 292830 to 39540 to 498350 to 5914460 to 692570 to 799180 to 8914390 to 99339100525STATIONS, LOG SCALE
Chart of Rain Gage At Calumet Union Dr Canal Nr Markham's rank in Illinois by how it reported, day by day, from 2026-10-07 to 2026-10-16: 2026-10-07 rank 1,385 of 1,449; 2026-10-08 rank 1,333 of 1,399; 2026-10-09 rank 1,230 of 1,364; 2026-10-10 rank 1,227 of 1,364; 2026-10-11 rank 1,115 of 1,359; 2026-10-12 rank 1,025 of 1,354; 2026-10-13 rank 970 of 1,360; 2026-10-14 rank 979 of 1,356; 2026-10-15 rank 1,008 of 1,375; 2026-10-16 rank 1,035 of 1,393.ITS RANK IN ILLINOIS, DAY BY DAYRANK, FIRST AT THE TOP15001,0001,500Oct 7Oct 9Oct 11Oct 13Oct 15Oct 16
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%525
90 to 99%339
80 to 89%143
70 to 79%91
60 to 69%25
50 to 59%144
40 to 49%83
30 to 39%5
20 to 29%28
10 to 19%8
0 to 9%2
DayRankStations rankedShare received
Oct 16, 20261,0351,39374.4%
Oct 15, 20261,0081,37574.4%
Oct 14, 20269791,35674.5%
Oct 13, 20269701,36074.7%
Oct 12, 20261,0251,35464.1%
Oct 11, 20261,1151,35953.4%
Oct 10, 20261,2271,36442.7%
Oct 9, 20261,2301,36442.4%
Oct 8, 20261,3331,39921.4%
Oct 7, 20261,3851,44910.7%

Station report

Rain Gage At Calumet Union Dr Canal Nr Markham, 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 39 degrees above the horizon at 41.60 N, and the day is 10 h 55 min long. Level ground there takes 63 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Rain Gage At Calumet Union Dr Canal Nr Markham, angles true: on Oct 16 it stands 39 degrees above the horizon, against 72 at the June solstice, 48 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 413548087395901FIG. E THE SUN AT RAIN GAGE AT CALUMET UNION DR CANAL NR MARKHAMELEVATION 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 48°DECEMBER SOLSTICE 25°OCT 16, 39°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 55 MINLEVEL GROUND TAKES 63 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 41.60 N; THE SUN'S DECLINATION -9.1°TITLERain Gage At Calumet Union Dr Canal Nr Markham, the sunSTATION REPORT · DCP 413548087395901TYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 1 of 2DATE2026-10-16IDSR-413548087395901-1DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

2The instrument

Contents

A data collection platform. Its sensors, as its network builds them.

Elevation of a data collection platform, Rain Gage At Calumet Union Dr Canal Nr Markham, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 413548087395901FIG. F THE INSTRUMENTELEVATION OF A DATA COLLECTION PLATFORM, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE-PRECIPITATION GAUGE-SCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLERain Gage At Calumet Union Dr Canal Nr Markham, the instrumentSTATION REPORT · DCP 413548087395901TYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 2 of 2DATE2026-10-16IDSR-413548087395901-2DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

The instrumentWhat an instrument is FB-INS-001

What it seesMoon and tides FB-CLK-003Hurricane FB-EVT-043Nor'easter FB-EVT-066Flash flood FB-EVT-100Coastal flood FB-EVT-105

Near Rain Gage At Calumet Union Dr Canal Nr Markham

Gauges

Weather instruments

Places