Storm Station
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At a river or reservoir gauge

DCP network, identified by the register

Identifier
401642106051601
Latitude
40.27823 N
Longitude
106.08789 W
Elevation
8,712 ft
Rank
2,586of 2,688 in Colorado, Oct 17

Ranking Statistics

On the radar over Willow Cr Upper Basin Precip Sta Nr Grand LakeReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

At a river or reservoir gauge

Drawn as the kind of place it stands at. 206 instruments in Colorado stand at one.

Station charts

Willow Cr Upper Basin Precip Sta Nr Grand Lake Report

Rank 2,586 of 2,688 in Colorado, Oct 17. 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 score70.6of 100

Colorado median
93.8the median score of 2,688 stations
Scoring higher
2,583stations in Colorado
Sharing its score
3ranks 2,584 to 2,586
Points deducted
29.416.6 reports received, 10.0 continuity, 1.4 forecast check, 0.9 accuracy, 0.6 arrival
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; Colorado median 95.6, 100.0, 86.3
Next above
400912106031201rank 2,585; ahead on median arrival 12 min 56 s against 12 min 58 s
Next below
401530105475401rank 2,587; behind on 247 score 70.6 against 70.5

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 3552.718.4 of 35 pointsColorado median 98.8354 of 672 scheduled reports received in 7 days
  2. Arrivalweight 1094.19.4 of 10 pointsColorado median 90.1half its reports arrived within 13 min
  3. Continuityweight 100.00.0 of 10 pointsColorado median 100.0longest silence 2.1 days, on a schedule of one report every 15 min
  4. Accuracyweight 20-19.1 of 20 points, at the medianColorado median 95.6-
  5. Instrument checksweight 15-15.0 of 15 points, at the medianColorado median 100.0-
  6. Forecast checkweight 10-8.6 of 10 points, at the medianColorado median 86.3-

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
2,586of 2,688 in Colorado, Oct 17
Schedule
every 15 minon the hour's :10, :25, :40 and :55
Reports received, 24 hours
0 of 960.0% of its schedule
Reports received, 7 days
349 of 67251.9% of its schedule
Days reported, 30 days
-
Longest silence, 7 days
2 days 4 hoursfrom Oct 14, 9:25 PM
Latest report
Oct 14, 9:25 PMlocal time
Time to reach Storm Station
17 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 2,688 ranked stations in Colorado on Oct 17 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, 35; 20 to 29 per cent, 10; 30 to 39 per cent, 12; 40 to 49 per cent, 150; 50 to 59 per cent, 225; 60 to 69 per cent, 169; 70 to 79 per cent, 171; 80 to 89 per cent, 229; 90 to 99 per cent, 830; 100 per cent, 856. Willow Cr Upper Basin Precip Sta Nr Grand Lake received 52.6 per cent, 354 of 672 scheduled reports, rank 2,586 of 2,688.WHERE IT RANKS IN COLORADO, Oct 17THIS ONE: 52.6%, 354 OF 672, RANK 2,586 OF 2,688PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9110 to 193520 to 291030 to 391240 to 4915050 to 5922560 to 6916970 to 7917180 to 8922990 to 99830100856STATIONS, LOG SCALE
Chart of Willow Cr Upper Basin Precip Sta Nr Grand Lake's rank in Colorado by how it reported, day by day, from 2026-10-07 to 2026-10-17: 2026-10-07 rank 2,464 of 2,582; 2026-10-08 rank 2,413 of 2,564; 2026-10-09 rank 2,295 of 2,531; 2026-10-10 rank 2,289 of 2,531; 2026-10-11 rank 2,079 of 2,540; 2026-10-12 rank 1,927 of 2,551; 2026-10-13 rank 1,804 of 2,546; 2026-10-14 rank 1,863 of 2,553; 2026-10-15 rank 2,070 of 2,597; 2026-10-16 rank 2,515 of 2,650; 2026-10-17 rank 2,586 of 2,688.ITS RANK IN COLORADO, DAY BY DAYRANK, FIRST AT THE TOP11,0002,0003,000Oct 7Oct 9Oct 11Oct 13Oct 15Oct 17
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%856
90 to 99%830
80 to 89%229
70 to 79%171
60 to 69%169
50 to 59%225
40 to 49%150
30 to 39%12
20 to 29%10
10 to 19%35
0 to 9%1
DayRankStations rankedShare received
Oct 17, 20262,5862,68852.6%
Oct 16, 20262,5152,65062.9%
Oct 15, 20262,0702,59773.5%
Oct 14, 20261,8632,55374.4%
Oct 13, 20261,8042,54674.4%
Oct 12, 20261,9272,55163.8%
Oct 11, 20262,0792,54053.1%
Oct 10, 20262,2892,53142.4%
Oct 9, 20262,2952,53142.1%
Oct 8, 20262,4132,56421.5%
Oct 7, 20262,4642,58210.7%

Station report

Willow Cr Upper Basin Precip Sta Nr Grand Lake, 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 8,712 ft above sea level, 28 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 21.63 inHg and the temperature at 27.9 F.

Section from sea level of where Willow Cr Upper Basin Precip Sta Nr Grand Lake stands in the atmosphere, height to scale: the station 8,712 feet above sea level with 28 per cent of the air below it; the standard atmosphere's pressure there, 21.63 inches of mercury, and temperature, 27.9 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 401642106051601FIG. D WHERE WILLOW CR UPPER BASIN PRECIP STA NR GRAND LAKE STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,00020,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHEREWILLOW CR UPPER BASIN PRECIP STA NR GRAND LAKE28 PER CENT OF THE AIR BELOW IT8,712 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 FT50 PER CENT OF THE AIR BELOW, 17,970 FTSTANDARD PRESSURE HERE21.63 inHgSTANDARD TEMPERATURE HERE27.9 FTITLEWillow Cr Upper Basin Precip Sta Nr Grand Lake, the columnSTATION REPORT · DCP 401642106051601TYPESECTIONSCALEHEIGHT TO SCALEREVFROM THE REGISTER SHEET 1 of 3DATE2026-10-17IDSR-401642106051601-1DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

2The sun

Contents

On Oct 17 the noon sun stands 40 degrees above the horizon at 40.28 N, and the day is 10 h 55 min long. Level ground there takes 65 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Willow Cr Upper Basin Precip Sta Nr Grand Lake, angles true: on Oct 17 it stands 40 degrees above the horizon, against 73 at the June solstice, 50 at the equinoxes and 26 at the December solstice; the day is 10 h 55 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 401642106051601FIG. E THE SUN AT WILLOW CR UPPER BASIN PRECIP STA NR GRAND LAKEELEVATION 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 73°EQUINOXES 50°DECEMBER SOLSTICE 26°OCT 17, 40°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 55 MINLEVEL GROUND TAKES 65 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 40.28 N; THE SUN'S DECLINATION -9.5°TITLEWillow Cr Upper Basin Precip Sta Nr Grand Lake, the sunSTATION REPORT · DCP 401642106051601TYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 2 of 3DATE2026-10-17IDSR-401642106051601-2DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

3The instrument

Contents

A data collection platform, 8,712 ft above sea level. Its sensors, as its network builds them.

Elevation of a data collection platform, Willow Cr Upper Basin Precip Sta Nr Grand Lake, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 401642106051601FIG. 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 SCALETITLEWillow Cr Upper Basin Precip Sta Nr Grand Lake, the instrumentSTATION REPORT · DCP 401642106051601TYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 3 of 3DATE2026-10-17IDSR-401642106051601-3DRAWN 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-100River flood FB-EVT-102Coastal flood FB-EVT-105

Near Willow Cr Upper Basin Precip Sta Nr Grand Lake

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