Storm Station
Sign in

At a river or reservoir gauge

DCP network, identified by the register

Identifier
COKI2
Latitude
39.58330 N
Longitude
88.41330 W
Elevation
-
Listed
Automatically, on 334 reports in 169 hours over the last seven days
Observed
10:00 PMCDT, 40 minutes ago
Precipitation this hour
0in
Precipitation today
0.3in

Ranking Statistics

At a river or reservoir gauge

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

Station charts

Kaskaskia River AT Cooks Mills Report

Rank 650 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 score96.3of 100

Illinois median
95.9the median score of 1,393 stations
Scoring higher
649stations in Illinois
Sharing its score
4ranks 650 to 653
Points deducted
3.73.0 arrival, 0.5 forecast check, 0.2 reports received
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; Illinois median 100.0, 100.0, 94.7
Next above
PENI2rank 648; ahead on 247 score 96.5 against 96.3
Next below
ENLrank 652; behind on reports received 99.4% against 98.2%
Sharing its rank
1other stations, equal on every measure

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 3599.434.8 of 35 pointsIllinois median 99.1334 of 336 scheduled reports received in 7 days
  2. Arrivalweight 1070.07.0 of 10 pointsIllinois median 96.3half its reports arrived within 25 min
  3. Continuityweight 10100.010.0 of 10 pointsIllinois median 100.0longest silence 60 min, on a schedule of one report every 30 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 (1.5 h), none for 72 (36 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
Schedule
every 30 minon the hour's :00, :30 and :45
Reports received, 24 hours
47 of 4897.9% of its schedule, 66 reports in all
Reports received, 7 days
334 of 33699.4% of its schedule, 439 reports in all
Days reported, 30 days
29 of 30
Longest silence, 7 days
1 hourfrom Oct 15, 11:30 AM
Latest report
Oct 15, 10:00 PMlocal time
Time to reach Storm Station
25 min9 in 10 within 32 min

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

Its schedule is one report every 30 min, 48 in 24 hours. Two reports in the same 30 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. Kaskaskia River AT Cooks Mills received 99.4 per cent, 334 of 336 scheduled reports, rank 650 of 1,393.WHERE IT RANKS IN ILLINOIS, Oct 16THIS ONE: 99.4%, 334 OF 336, RANK 650 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 Kaskaskia River AT Cooks Mills's rank in Illinois by how it reported, day by day, from 2026-09-26 to 2026-10-16: 2026-09-26 rank 169 of 415; 2026-09-27 rank 173 of 417; 2026-09-28 rank 152 of 517; 2026-09-29 rank 158 of 535; 2026-09-30 rank 172 of 540; 2026-10-01 rank 230 of 542; 2026-10-02 rank 724 of 1,103; 2026-10-03 rank 725 of 1,104; 2026-10-04 rank 607 of 1,162; 2026-10-05 rank 578 of 1,318; 2026-10-06 rank 562 of 1,354; 2026-10-07 rank 540 of 1,449; 2026-10-08 rank 535 of 1,399; 2026-10-09 rank 544 of 1,364; 2026-10-10 rank 545 of 1,364; 2026-10-11 rank 516 of 1,359; 2026-10-12 rank 559 of 1,354; 2026-10-13 rank 602 of 1,360; 2026-10-14 rank 619 of 1,356; 2026-10-15 rank 643 of 1,375; 2026-10-16 rank 650 of 1,393.ITS RANK IN ILLINOIS, DAY BY DAYRANK, FIRST AT THE TOP1200400600800Sep 26Sep 30Oct 4Oct 8Oct 12Oct 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, 20266501,39399.4%
Oct 15, 20266431,37599.7%
Oct 14, 20266191,35698.8%
Oct 13, 20266021,36098.8%
Oct 12, 20265591,35498.8%
Oct 11, 20265161,35999.1%
Oct 10, 20265451,36499.1%
Oct 9, 20265441,36499.1%
Oct 8, 20265351,39998.8%
Oct 7, 20265401,44999.7%
Oct 6, 20265621,35499.7%
Oct 5, 20265781,31899.7%
Oct 4, 20266071,16299.7%
Oct 3, 20267251,10499.6%
Oct 2, 20267241,10399.6%
Oct 1, 202623054299.6%
Sep 30, 2026172540100.0%
Sep 29, 2026158535100.0%
Sep 28, 2026152517100.0%
Sep 27, 2026173417100.0%
Sep 26, 2026169415100.0%
Precipitation at Kaskaskia River AT Cooks Mills, precipitation from 0.00 to 0.20, the latest 0.00, in inches.PRECIPITATIONin0.000.050.100.150.20Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM
Battery at Kaskaskia River AT Cooks Mills, battery from 12.6 to 13.2, the latest 12.6, in volts.BATTERYV12.412.612.81313.2Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM
Reports received at Kaskaskia River AT Cooks Mills, reports from 1.0 to 4.0, the latest 1.0, in reports.REPORTS RECEIVEDreports01234Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM
The readings these charts were drawn from, as a table
HourPrecipitation inBattery VReports
Thu 15, 10 PM0.0012.61
Thu 15, 9 PM0.0012.64
Thu 15, 8 PM0.0012.64
Thu 15, 7 PM0.0012.64
Thu 15, 6 PM0.0012.74
Thu 15, 5 PM0.0012.84
Thu 15, 4 PM0.0112.94
Thu 15, 3 PM0.0612.84
Thu 15, 2 PM0.2012.84
Thu 15, 1 PM0.0213.04
Thu 15, 12 PM0.0413.24
Thu 15, 11 AM0.0113.24
Thu 15, 10 AM0.0013.14
Thu 15, 9 AM0.0013.04
Thu 15, 8 AM0.0012.74
Thu 15, 7 AM0.0012.64
Thu 15, 6 AM0.0012.64
Thu 15, 5 AM0.0012.64
Thu 15, 4 AM0.0012.64
Thu 15, 3 AM0.0012.64
Thu 15, 2 AM0.0012.64
Thu 15, 1 AM0.0012.64
Thu 15, 12 AM0.0012.64
Wed 14, 11 PM0.0012.74
Precipitation at Kaskaskia River AT Cooks Mills, precipitation from 0.00 to 0.20, the latest 0.00, in inches.PRECIPITATIONin0.000.050.100.150.20Fri 9Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15
Battery at Kaskaskia River AT Cooks Mills, battery from 12.6 to 14.4, the latest 12.6, in volts.BATTERYV12.51313.51414.5Fri 9Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15
Reports received at Kaskaskia River AT Cooks Mills, reports from 1.0 to 4.0, the latest 1.0, in reports.REPORTS RECEIVEDreports01234Fri 9Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15
The readings these charts were drawn from, as a table
HourPrecipitation inBattery VReports
Thu 15, 10 PM0.0012.61
Thu 15, 9 PM0.0012.64
Thu 15, 8 PM0.0012.64
Thu 15, 7 PM0.0012.64
Thu 15, 6 PM0.0012.74
Thu 15, 5 PM0.0012.84
Thu 15, 4 PM0.0112.94
Thu 15, 3 PM0.0612.84
Thu 15, 2 PM0.2012.84
Thu 15, 1 PM0.0213.04
Thu 15, 12 PM0.0413.24
Thu 15, 11 AM0.0113.24
Thu 15, 10 AM0.0013.14
Thu 15, 9 AM0.0013.04
Thu 15, 8 AM0.0012.74
Thu 15, 7 AM0.0012.64
Thu 15, 6 AM0.0012.64
Thu 15, 5 AM0.0012.64
Thu 15, 4 AM0.0012.64
Thu 15, 3 AM0.0012.64
Thu 15, 2 AM0.0012.64
Thu 15, 1 AM0.0012.64
Thu 15, 12 AM0.0012.64
Wed 14, 11 PM0.0012.74
Wed 14, 10 PM0.0012.74
Wed 14, 9 PM0.0012.74
Wed 14, 8 PM0.0012.74
Wed 14, 7 PM0.0012.84
Wed 14, 6 PM0.0012.84
Wed 14, 5 PM0.0012.94
Wed 14, 4 PM0.0013.14
Wed 14, 3 PM0.0013.34
Wed 14, 2 PM0.0013.44
Wed 14, 1 PM0.0013.24
Wed 14, 12 PM0.0013.14
Wed 14, 11 AM0.0013.14
Wed 14, 10 AM0.0012.84
Wed 14, 9 AM0.0112.74
Wed 14, 8 AM0.0012.64
Wed 14, 7 AM0.0012.64
Wed 14, 6 AM0.0012.64
Wed 14, 5 AM0.0012.64
Wed 14, 4 AM0.0012.74
Wed 14, 3 AM0.0012.74
Wed 14, 2 AM0.0012.74
Wed 14, 1 AM0.0012.74
Wed 14, 12 AM0.0012.74
Tue 13, 11 PM0.0012.74
Tue 13, 10 PM0.0012.74
Tue 13, 9 PM0.0012.74
Tue 13, 8 PM0.0012.74
Tue 13, 7 PM0.0012.74
Tue 13, 6 PM0.0012.84
Tue 13, 5 PM0.0012.84
Tue 13, 4 PM0.0012.94
Tue 13, 3 PM0.0013.14
Tue 13, 2 PM0.0013.44
Tue 13, 1 PM0.0014.24
Tue 13, 12 PM0.0013.74
Tue 13, 11 AM0.0013.54
Tue 13, 10 AM0.0013.64
Tue 13, 9 AM0.0014.34
Tue 13, 8 AM0.0012.84
Tue 13, 7 AM0.0012.64
Tue 13, 6 AM0.0012.64
Tue 13, 5 AM0.0012.64
Tue 13, 4 AM0.0012.64
Tue 13, 3 AM0.0012.64
Tue 13, 2 AM0.0012.74
Tue 13, 1 AM0.0012.74
Tue 13, 12 AM0.0012.74
Mon 12, 11 PM0.0012.74
Mon 12, 10 PM0.0012.74
Mon 12, 9 PM0.0012.74
Mon 12, 8 PM0.0012.74
Mon 12, 7 PM0.0012.84
Mon 12, 6 PM0.0012.84
Mon 12, 5 PM0.0012.94
Mon 12, 4 PM0.0013.04
Mon 12, 3 PM0.0013.24
Mon 12, 2 PM0.0013.44
Mon 12, 1 PM0.0013.54
Mon 12, 12 PM0.0013.54
Mon 12, 11 AM0.0013.54
Mon 12, 10 AM0.0013.54
Mon 12, 9 AM0.0013.64
Mon 12, 8 AM0.0012.74
Mon 12, 7 AM0.0012.64
Mon 12, 6 AM0.0012.64
Mon 12, 5 AM0.0012.64
Mon 12, 4 AM0.0012.64
Mon 12, 3 AM0.0012.64
Mon 12, 2 AM0.0012.64
Mon 12, 1 AM0.0012.74
Mon 12, 12 AM0.0012.74
Sun 11, 11 PM0.0012.74
Sun 11, 10 PM0.0012.74
Sun 11, 9 PM0.0012.74
Sun 11, 8 PM0.0012.74
Sun 11, 7 PM0.0012.74
Sun 11, 6 PM0.0012.84
Sun 11, 5 PM0.0012.84
Sun 11, 4 PM0.0013.04
Sun 11, 3 PM0.0013.24
Sun 11, 2 PM0.0013.64
Sun 11, 1 PM0.0013.64
Sun 11, 12 PM0.00-2
Sun 11, 11 AM0.0014.13
Sun 11, 10 AM0.0013.54
Sun 11, 9 AM0.0013.84
Sun 11, 8 AM0.0012.74
Sun 11, 7 AM0.0012.64
Sun 11, 6 AM0.0012.64
Sun 11, 5 AM0.0012.64
Sun 11, 4 AM0.0012.64
Sun 11, 3 AM0.0012.64
Sun 11, 2 AM0.0012.74
Sun 11, 1 AM0.0012.74
Sun 11, 12 AM0.0012.74
Sat 10, 11 PM0.0012.74
Sat 10, 10 PM0.0012.74
Sat 10, 9 PM0.0012.74
Sat 10, 8 PM0.0012.84
Sat 10, 7 PM0.0012.84
Sat 10, 6 PM0.0012.94
Sat 10, 5 PM0.0013.24
Sat 10, 4 PM0.0013.54
Sat 10, 3 PM0.0013.54
Sat 10, 2 PM0.0014.04
Sat 10, 1 PM0.0013.54
Sat 10, 12 PM0.0014.44
Sat 10, 11 AM0.0013.64
Sat 10, 10 AM0.0013.84
Sat 10, 9 AM0.0014.34
Sat 10, 8 AM0.0012.94
Sat 10, 7 AM0.0012.64
Sat 10, 6 AM0.0012.64
Sat 10, 5 AM0.0012.64
Sat 10, 4 AM0.0012.64
Sat 10, 3 AM0.0012.64
Sat 10, 2 AM0.0012.64
Sat 10, 1 AM0.0012.74
Sat 10, 12 AM0.0012.74
Fri 9, 11 PM0.0012.74
Fri 9, 10 PM0.0012.74
Fri 9, 9 PM0.0012.74
Fri 9, 8 PM0.0012.74
Fri 9, 7 PM0.0012.84
Fri 9, 6 PM0.0012.84
Fri 9, 5 PM0.0012.94
Fri 9, 4 PM0.0013.14
Fri 9, 3 PM0.0013.34
Fri 9, 2 PM0.0013.94
Fri 9, 1 PM0.0014.24
Fri 9, 12 PM0.0013.74
Fri 9, 11 AM0.0013.64
Fri 9, 10 AM0.0013.54
Fri 9, 9 AM0.0014.14
Fri 9, 8 AM0.0012.94
Fri 9, 7 AM0.0012.64
Fri 9, 6 AM0.0012.64
Fri 9, 5 AM0.0012.64
Fri 9, 4 AM0.0012.63
Fri 9, 3 AM0.0012.64
Fri 9, 2 AM0.0012.64
Fri 9, 1 AM0.0012.64
Fri 9, 12 AM0.0012.64
Thu 8, 11 PM0.0012.74
Precipitation at Kaskaskia River AT Cooks Mills, precipitation from 0.00 to 0.93, the latest 0.34, in inches.PRECIPITATIONin0.000.250.500.751.00Sep 17Sep 22Sep 27Oct 2Oct 7Oct 12
The readings these charts were drawn from, as a table
DayPrecipitation in
Oct 150.34
Oct 140.01
Oct 130.00
Oct 120.00
Oct 110.00
Oct 100.00
Oct 90.00
Oct 80.00
Oct 70.00
Oct 60.00
Oct 50.00
Oct 40.01
Oct 30.00
Oct 20.05
Oct 10.52
Sep 300.00
Sep 290.00
Sep 280.00
Sep 270.00
Sep 260.00
Sep 250.00
Sep 240.00
Sep 230.01
Sep 220.00
Sep 210.93
Sep 200.13
Sep 190.02
Sep 180.00
Sep 170.00

Near Kaskaskia River AT Cooks Mills