Storm Station
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At a river or reservoir gauge

DCP network, identified by the register

Identifier
06403850
Latitude
43.87806 N
Longitude
103.43722 W
Elevation
4,491 ft
Rank
127of 806 in South Dakota, Oct 16
Observed
3:40 AMCDT, 25 minutes ago
Precipitation in the gauge's latest reading
0in

Ranking Statistics

On the radar over Grizzly Bear Creek Near KeystoneReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

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

Grizzly Bear Creek Near Keystone Report

Rank 127 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 score96.7of 100

South Dakota median
93.1the median score of 806 stations
Scoring higher
126stations in South Dakota
Sharing its score
8ranks 127 to 134
Points deducted
3.32.7 forecast check, 0.6 arrival
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; South Dakota median 100.0, 100.0, 72.6
Next above
WATS2rank 126; ahead on 247 score 96.8 against 96.7
Next below
SHDS2rank 130; behind on median arrival 12 min 49 s against 12 min 53 s
Sharing its rank
2other 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 35100.035.0 of 35 pointsSouth Dakota median 98.2168 of 168 scheduled reports received in 7 days
  2. Arrivalweight 1094.49.4 of 10 pointsSouth Dakota median 86.0half its reports arrived within 13 min
  3. Continuityweight 10100.010.0 of 10 pointsSouth Dakota median 100.0longest silence 65 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
Rank
127of 806 in South Dakota, Oct 16
Schedule
every houron the hour's :40
Reports received, 24 hours
24 of 24100% of its schedule, 27 reports in all
Reports received, 7 days
168 of 168100% of its schedule, 185 reports in all
Days reported, 30 days
-
Longest silence, 7 days
65 minfrom Oct 9, 9:40 AM
Latest report
Oct 16, 8:40 AMlocal time
Time to reach Storm Station
13 min9 in 10 within 22 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. Grizzly Bear Creek Near Keystone received 100.0 per cent, 168 of 168 scheduled reports, rank 127 of 806.WHERE IT RANKS IN SOUTH DAKOTA, Oct 16THIS ONE: 100.0%, 168 OF 168, RANK 127 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 Grizzly Bear Creek Near Keystone's rank in South Dakota by how it reported, day by day, from 2026-10-07 to 2026-10-16: 2026-10-07 rank 803 of 834; 2026-10-08 rank 774 of 813; 2026-10-09 rank 702 of 796; 2026-10-10 rank 704 of 796; 2026-10-11 rank 662 of 797; 2026-10-12 rank 476 of 795; 2026-10-13 rank 126 of 787; 2026-10-14 rank 121 of 792; 2026-10-15 rank 124 of 794; 2026-10-16 rank 127 of 806.ITS RANK IN SOUTH DAKOTA, DAY BY DAYRANK, FIRST AT THE TOP12505007501,000Oct 7Oct 9Oct 11Oct 13Oct 15Oct 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, 2026127806100.0%
Oct 15, 2026124794100.0%
Oct 14, 2026121792100.0%
Oct 13, 2026126787100.0%
Oct 12, 202647679585.7%
Oct 11, 202666279771.4%
Oct 10, 202670479657.1%
Oct 9, 202670279657.1%
Oct 8, 202677481328.5%
Oct 7, 202680383414.2%

Station report

Grizzly Bear Creek Near Keystone, in 3 sheets

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

1The column

Contents

At 4,491 ft above sea level, 15 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 25.37 inHg and the temperature at 43.0 F.

Section from sea level of where Grizzly Bear Creek Near Keystone stands in the atmosphere, height to scale: the station 4,491 feet above sea level with 15 per cent of the air below it; the standard atmosphere's pressure there, 25.37 inches of mercury, and temperature, 43.0 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 06403850FIG. D WHERE GRIZZLY BEAR CREEK NEAR KEYSTONE STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHEREGRIZZLY BEAR CREEK NEAR KEYSTONE15 PER CENT OF THE AIR BELOW IT4,491 FT10 PER CENT OF THE AIR BELOW, 2,890 FT20 PER CENT OF THE AIR BELOW, 6,050 FT30 PER CENT OF THE AIR BELOW, 9,540 FT40 PER CENT OF THE AIR BELOW, 13,470 FTSTANDARD PRESSURE HERE25.37 inHgSTANDARD TEMPERATURE HERE43.0 FTITLEGrizzly Bear Creek Near Keystone, the columnSTATION REPORT · DCP 06403850TYPESECTIONSCALEHEIGHT TO SCALEREVFROM THE REGISTER SHEET 1 of 3DATE2026-10-16IDSR-06403850-1DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

2The sun

Contents

On Oct 16 the noon sun stands 37 degrees above the horizon at 43.88 N, and the day is 10 h 49 min long. Level ground there takes 60 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Grizzly Bear Creek Near Keystone, angles true: on Oct 16 it stands 37 degrees above the horizon, against 70 at the June solstice, 46 at the equinoxes and 23 at the December solstice; the day is 10 h 49 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 06403850FIG. E THE SUN AT GRIZZLY BEAR CREEK NEAR KEYSTONEELEVATION 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 70°EQUINOXES 46°DECEMBER SOLSTICE 23°OCT 16, 37°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 49 MINLEVEL GROUND TAKES 60 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 43.88 N; THE SUN'S DECLINATION -9.1°TITLEGrizzly Bear Creek Near Keystone, the sunSTATION REPORT · DCP 06403850TYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 2 of 3DATE2026-10-16IDSR-06403850-2DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

3The instrument

Contents

A data collection platform, 4,491 ft above sea level. Its sensors, as its network builds them.

Elevation of a data collection platform, Grizzly Bear Creek Near Keystone, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 06403850FIG. 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 SCALETITLEGrizzly Bear Creek Near Keystone, the instrumentSTATION REPORT · DCP 06403850TYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 3 of 3DATE2026-10-16IDSR-06403850-3DRAWN 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 Grizzly Bear Creek Near Keystone

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