Storm Station
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At a river or reservoir gauge

DCP network, identified by the register

Identifier
GCOS2
Latitude
43.76110 N
Longitude
103.36360 W
Elevation
-
Listed
Automatically, on 168 reports in 162 hours over the last seven days
Observed
3:00 AMCDT, 1 hour ago
Precipitation today
0in

Ranking Statistics

At a river or reservoir gauge

Drawn as the kind of place it stands at. 52 instruments in South Dakota stand at one.

Station charts

Grace Coolidge Creek 12 E Custer Report

Rank 402 of 806 in South Dakota, 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 score93.2of 100

South Dakota median
93.1the median score of 806 stations
Scoring higher
393stations in South Dakota
Sharing its score
9ranks 394 to 402
Points deducted
6.84.1 arrival, 2.7 forecast check
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; South Dakota median 100.0, 100.0, 72.6
Next above
HERS2rank 401; ahead on longest silence 65 min against 75 min
Next below
BKFS2rank 403; behind on 247 score 93.2 against 93.1

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 35100.035.0 of 35 pointsSouth Dakota median 98.2168 of 168 scheduled reports received in 7 days
  2. Arrivalweight 1058.95.9 of 10 pointsSouth Dakota median 86.0half its reports arrived within 31 min
  3. Continuityweight 10100.010.0 of 10 pointsSouth Dakota median 100.0longest silence 75 min, on a schedule of one report every 60 min
  4. Accuracyweight 20-20.0 of 20 points, at the medianSouth Dakota median 100.0-
  5. Instrument checksweight 15-15.0 of 15 points, at the medianSouth Dakota median 100.0-
  6. Forecast checkweight 10-7.3 of 10 points, at the medianSouth Dakota median 72.6-

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 (3 h), none for 72 (72 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 houron the hour's :00 and :45
Reports received, 24 hours
24 of 24100% of its schedule, 27 reports in all
Reports received, 7 days
168 of 168100% of its schedule, 207 reports in all
Days reported, 30 days
30 of 30
Longest silence, 7 days
88 minfrom Oct 15, 9:00 PM
Latest report
Oct 15, 9:00 PMlocal time
Time to reach Storm Station
31 min9 in 10 within 36 min

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

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

Chart of the 806 ranked stations in South Dakota 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, 1; 10 to 19 per cent, 0; 20 to 29 per cent, 4; 30 to 39 per cent, 1; 40 to 49 per cent, 37; 50 to 59 per cent, 43; 60 to 69 per cent, 3; 70 to 79 per cent, 166; 80 to 89 per cent, 88; 90 to 99 per cent, 160; 100 per cent, 303. Grace Coolidge Creek 12 E Custer received 100.0 per cent, 168 of 168 scheduled reports, rank 402 of 806.WHERE IT RANKS IN SOUTH DAKOTA, Oct 16THIS ONE: 100.0%, 168 OF 168, RANK 402 OF 806PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9110 to 1920 to 29430 to 39140 to 493750 to 594360 to 69370 to 7916680 to 898890 to 99160100303STATIONS, LOG SCALE
Chart of Grace Coolidge Creek 12 E Custer's rank in South Dakota by how it reported, day by day, from 2026-09-26 to 2026-10-16: 2026-09-26 rank 375 of 425; 2026-09-27 rank 359 of 428; 2026-09-28 rank 464 of 563; 2026-09-29 rank 462 of 585; 2026-09-30 rank 461 of 591; 2026-10-01 rank 504 of 590; 2026-10-02 rank 492 of 769; 2026-10-03 rank 490 of 769; 2026-10-04 rank 373 of 792; 2026-10-05 rank 365 of 826; 2026-10-06 rank 376 of 832; 2026-10-07 rank 325 of 834; 2026-10-08 rank 315 of 813; 2026-10-09 rank 387 of 796; 2026-10-10 rank 385 of 796; 2026-10-11 rank 392 of 797; 2026-10-12 rank 395 of 795; 2026-10-13 rank 435 of 787; 2026-10-14 rank 428 of 792; 2026-10-15 rank 417 of 794; 2026-10-16 rank 402 of 806.ITS RANK IN SOUTH DAKOTA, DAY BY DAYRANK, FIRST AT THE TOP1200400600Sep 26Sep 30Oct 4Oct 8Oct 12Oct 16
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%303
90 to 99%160
80 to 89%88
70 to 79%166
60 to 69%3
50 to 59%43
40 to 49%37
30 to 39%1
20 to 29%4
10 to 19%0
0 to 9%1
DayRankStations rankedShare received
Oct 16, 2026402806100.0%
Oct 15, 202641779499.4%
Oct 14, 202642879299.4%
Oct 13, 202643578799.4%
Oct 12, 202639579599.4%
Oct 11, 202639279799.4%
Oct 10, 202638579699.4%
Oct 9, 202638779699.4%
Oct 8, 2026315813100.0%
Oct 7, 2026325834100.0%
Oct 6, 2026376832100.0%
Oct 5, 2026365826100.0%
Oct 4, 2026373792100.0%
Oct 3, 202649076998.8%
Oct 2, 202649276998.8%
Oct 1, 202650459084.2%
Sep 30, 202646159186.0%
Sep 29, 202646258585.7%
Sep 28, 202646456387.2%
Sep 27, 202635942888.7%
Sep 26, 202637542583.8%
Precipitation at Grace Coolidge Creek 12 E Custer, precipitation from 0.00 to 0.01, the latest 0.00, in inches.PRECIPITATIONin0.000.030.050.070.106 AM9 AM12 PM3 PM6 PM9 PMOct 163 AM
Reports received at Grace Coolidge Creek 12 E Custer, reports from 0.0 to 7.0, the latest 0.0, in reports.REPORTS RECEIVEDreports024686 AM9 AM12 PM3 PM6 PM9 PMOct 163 AM
The readings these charts were drawn from, as a table
HourPrecipitation inReports
Fri 16, 2 AM0.002
Fri 16, 1 AM0.007
Thu 15, 11 PM0.004
Thu 15, 10 PM0.004
Thu 15, 9 PM0.004
Thu 15, 8 PM0.004
Thu 15, 7 PM0.004
Thu 15, 6 PM0.004
Thu 15, 5 PM0.004
Thu 15, 4 PM0.004
Thu 15, 3 PM0.004
Thu 15, 2 PM0.004
Thu 15, 1 PM0.004
Thu 15, 12 PM0.004
Thu 15, 11 AM0.004
Thu 15, 10 AM0.004
Thu 15, 9 AM0.004
Thu 15, 8 AM0.004
Thu 15, 7 AM0.004
Thu 15, 6 AM0.004
Thu 15, 5 AM0.004
Thu 15, 4 AM0.014
Precipitation at Grace Coolidge Creek 12 E Custer, precipitation from 0.00 to 0.04, the latest 0.00, in inches.PRECIPITATIONin0.000.030.050.070.10Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Fri 16
Reports received at Grace Coolidge Creek 12 E Custer, reports from 0.0 to 7.0, the latest 0.0, in reports.REPORTS RECEIVEDreports02468Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Fri 16
The readings these charts were drawn from, as a table
HourPrecipitation inReports
Fri 16, 2 AM0.002
Fri 16, 1 AM0.007
Thu 15, 11 PM0.004
Thu 15, 10 PM0.004
Thu 15, 9 PM0.004
Thu 15, 8 PM0.004
Thu 15, 7 PM0.004
Thu 15, 6 PM0.004
Thu 15, 5 PM0.004
Thu 15, 4 PM0.004
Thu 15, 3 PM0.004
Thu 15, 2 PM0.004
Thu 15, 1 PM0.004
Thu 15, 12 PM0.004
Thu 15, 11 AM0.004
Thu 15, 10 AM0.004
Thu 15, 9 AM0.004
Thu 15, 8 AM0.004
Thu 15, 7 AM0.004
Thu 15, 6 AM0.004
Thu 15, 5 AM0.004
Thu 15, 4 AM0.014
Thu 15, 3 AM0.034
Thu 15, 2 AM0.004
Thu 15, 1 AM0.004
Thu 15, 12 AM0.004
Wed 14, 11 PM0.014
Wed 14, 10 PM0.004
Wed 14, 9 PM0.004
Wed 14, 8 PM0.004
Wed 14, 7 PM0.004
Wed 14, 6 PM0.004
Wed 14, 5 PM0.004
Wed 14, 4 PM0.004
Wed 14, 3 PM0.004
Wed 14, 2 PM0.004
Wed 14, 1 PM0.004
Wed 14, 12 PM0.004
Wed 14, 11 AM0.004
Wed 14, 10 AM0.004
Wed 14, 9 AM0.004
Wed 14, 8 AM0.004
Wed 14, 7 AM0.004
Wed 14, 6 AM0.004
Wed 14, 5 AM0.004
Wed 14, 4 AM0.004
Wed 14, 3 AM0.004
Wed 14, 2 AM0.004
Wed 14, 1 AM0.004
Wed 14, 12 AM0.014
Tue 13, 11 PM0.004
Tue 13, 10 PM0.004
Tue 13, 9 PM0.004
Tue 13, 8 PM0.004
Tue 13, 7 PM0.004
Tue 13, 6 PM0.004
Tue 13, 5 PM0.004
Tue 13, 4 PM0.004
Tue 13, 3 PM0.004
Tue 13, 2 PM0.004
Tue 13, 1 PM0.004
Tue 13, 12 PM0.004
Tue 13, 11 AM0.004
Tue 13, 10 AM0.004
Tue 13, 9 AM0.004
Tue 13, 8 AM0.004
Tue 13, 7 AM0.004
Tue 13, 6 AM0.004
Tue 13, 5 AM0.014
Tue 13, 4 AM0.044
Tue 13, 3 AM0.004
Tue 13, 2 AM0.024
Tue 13, 1 AM0.004
Tue 13, 12 AM0.004
Mon 12, 11 PM0.004
Mon 12, 10 PM0.004
Mon 12, 9 PM0.004
Mon 12, 8 PM0.004
Mon 12, 7 PM0.004
Mon 12, 6 PM0.004
Mon 12, 5 PM0.004
Mon 12, 4 PM0.004
Mon 12, 3 PM0.004
Mon 12, 2 PM0.004
Mon 12, 1 PM0.004
Mon 12, 12 PM0.004
Mon 12, 11 AM0.004
Mon 12, 10 AM0.004
Mon 12, 9 AM0.004
Mon 12, 8 AM0.004
Mon 12, 7 AM0.004
Mon 12, 6 AM0.014
Mon 12, 5 AM0.004
Mon 12, 4 AM0.004
Mon 12, 3 AM0.004
Mon 12, 2 AM0.014
Mon 12, 1 AM0.014
Mon 12, 12 AM0.004
Sun 11, 11 PM0.004
Sun 11, 10 PM0.004
Sun 11, 9 PM0.004
Sun 11, 7 PM0.004
Sun 11, 6 PM0.004
Sun 11, 5 PM0.004
Sun 11, 4 PM0.004
Sun 11, 3 PM0.004
Sun 11, 2 PM0.004
Sun 11, 1 PM0.004
Sun 11, 12 PM0.004
Sun 11, 9 AM0.004
Sun 11, 8 AM0.004
Sun 11, 7 AM0.004
Sun 11, 6 AM0.004
Sun 11, 5 AM0.004
Sun 11, 4 AM0.004
Sun 11, 3 AM0.004
Sun 11, 2 AM0.004
Sun 11, 1 AM0.004
Sun 11, 12 AM0.004
Sat 10, 11 PM0.004
Sat 10, 10 PM0.004
Sat 10, 9 PM0.004
Sat 10, 8 PM0.004
Sat 10, 7 PM0.004
Sat 10, 6 PM0.004
Sat 10, 5 PM0.004
Sat 10, 4 PM0.004
Sat 10, 3 PM0.004
Sat 10, 2 PM0.004
Sat 10, 1 PM0.004
Sat 10, 12 PM0.004
Sat 10, 11 AM0.004
Sat 10, 10 AM0.004
Sat 10, 9 AM0.004
Sat 10, 8 AM0.004
Sat 10, 7 AM0.004
Sat 10, 6 AM0.004
Sat 10, 5 AM0.004
Sat 10, 4 AM0.004
Sat 10, 3 AM0.004
Sat 10, 2 AM0.004
Sat 10, 1 AM0.004
Sat 10, 12 AM0.004
Fri 9, 11 PM0.004
Fri 9, 10 PM0.004
Fri 9, 9 PM0.004
Fri 9, 8 PM0.004
Fri 9, 7 PM0.004
Fri 9, 6 PM0.004
Fri 9, 5 PM0.004
Fri 9, 4 PM0.004
Fri 9, 3 PM0.004
Fri 9, 2 PM0.004
Fri 9, 1 PM0.004
Fri 9, 12 PM0.004
Fri 9, 11 AM0.004
Fri 9, 10 AM0.004
Fri 9, 9 AM0.004
Fri 9, 8 AM0.004
Fri 9, 7 AM0.004
Fri 9, 6 AM0.004
Fri 9, 5 AM0.004
Fri 9, 4 AM0.004
Precipitation at Grace Coolidge Creek 12 E Custer, precipitation from 0.00 to 1.55, the latest 0.00, in inches.PRECIPITATIONin0.000.501.001.502.00Sep 17Sep 22Sep 27Oct 2Oct 7Oct 12
The readings these charts were drawn from, as a table
DayPrecipitation in
Oct 160.00
Oct 150.03
Oct 140.00
Oct 130.08
Oct 120.03
Oct 110.00
Oct 100.00
Oct 90.00
Oct 80.00
Oct 70.00
Oct 60.00
Oct 50.00
Oct 40.00
Oct 30.00
Oct 21.08
Oct 10.00
Sep 300.00
Sep 290.00
Sep 280.03
Sep 270.01
Sep 260.00
Sep 250.00
Sep 240.00
Sep 230.01
Sep 220.05
Sep 210.31
Sep 201.55
Sep 190.00
Sep 180.09
Sep 170.13

Near Grace Coolidge Creek 12 E Custer