Storm Station
Sign in

At a river or reservoir gauge

DCP network, identified by the register

Identifier
390447107175001
Latitude
39.07985 N
Longitude
107.29722 W
Elevation
10,293 ft
Rank
1,762of 2,650 in Colorado, Oct 16
Observed
11:00 PMMDT, 55 minutes ago
Air temperature
28.4F
Dew point
25F
Relative humidity
87%
Wind
14mph
Gust
20mph
Wind direction
66°

Ranking Statistics

On the radar over Chair Mountain Meteorological StationReflectivityStorm 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

Chair Mountain Meteorological Station Report

Rank 1,762 of 2,650 in Colorado, 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 score88.5of 100

Colorado median
93.2the median score of 2,650 stations
Scoring higher
1,761stations in Colorado
Sharing its score
8ranks 1,762 to 1,769
Points deducted
11.58.6 arrival, 1.6 accuracy, 1.3 forecast check
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; Colorado median 91.9, 100.0, 86.8
Next above
YRSC2rank 1,761; ahead on 247 score 88.6 against 88.5
Next below
GNBrank 1,767; behind on reports received 100% against 99.8%
Sharing its rank
4other 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 pointsColorado median 98.8168 of 168 scheduled reports received in 7 days
  2. Arrivalweight 1014.41.4 of 10 pointsColorado median 90.3half its reports arrived within 53 min
  3. Continuityweight 10100.010.0 of 10 pointsColorado median 100.0longest silence 62 min, on a schedule of one report every 60 min
  4. Accuracyweight 20-18.4 of 20 points, at the medianColorado median 91.9-
  5. Instrument checksweight 15-15.0 of 15 points, at the medianColorado median 100.0-
  6. Forecast checkweight 10-8.7 of 10 points, at the medianColorado median 86.8-

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
1,762of 2,650 in Colorado, Oct 16
Schedule
every houron the hour's :00
Reports received, 24 hours
24 of 24100% of its schedule
Reports received, 7 days
168 of 168100% of its schedule
Days reported, 30 days
-
Longest silence, 7 days
1 hourfrom Oct 9, 6:00 AM
Latest report
Oct 16, 5:00 AMlocal time
Time to reach Storm Station
53 min9 in 10 within 53 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 2,650 ranked stations in Colorado 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, 12; 20 to 29 per cent, 32; 30 to 39 per cent, 12; 40 to 49 per cent, 144; 50 to 59 per cent, 189; 60 to 69 per cent, 168; 70 to 79 per cent, 180; 80 to 89 per cent, 220; 90 to 99 per cent, 896; 100 per cent, 795. Chair Mountain Meteorological Station received 100.0 per cent, 168 of 168 scheduled reports, rank 1,762 of 2,650.WHERE IT RANKS IN COLORADO, Oct 16THIS ONE: 100.0%, 168 OF 168, RANK 1,762 OF 2,650PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9210 to 191220 to 293230 to 391240 to 4914450 to 5918960 to 6916870 to 7918080 to 8922090 to 99896100795STATIONS, LOG SCALE
Chart of Chair Mountain Meteorological Station's rank in Colorado by how it reported, day by day, from 2026-10-07 to 2026-10-16: 2026-10-07 rank 2,535 of 2,582; 2026-10-08 rank 2,465 of 2,564; 2026-10-09 rank 2,338 of 2,531; 2026-10-10 rank 2,333 of 2,531; 2026-10-11 rank 2,105 of 2,540; 2026-10-12 rank 1,906 of 2,551; 2026-10-13 rank 1,693 of 2,546; 2026-10-14 rank 1,707 of 2,553; 2026-10-15 rank 1,741 of 2,597; 2026-10-16 rank 1,762 of 2,650.ITS RANK IN COLORADO, DAY BY DAYRANK, FIRST AT THE TOP11,0002,0003,000Oct 7Oct 9Oct 11Oct 13Oct 15Oct 16
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%795
90 to 99%896
80 to 89%220
70 to 79%180
60 to 69%168
50 to 59%189
40 to 49%144
30 to 39%12
20 to 29%32
10 to 19%12
0 to 9%2
DayRankStations rankedShare received
Oct 16, 20261,7622,650100.0%
Oct 15, 20261,7412,597100.0%
Oct 14, 20261,7072,553100.0%
Oct 13, 20261,6932,546100.0%
Oct 12, 20261,9062,55186.3%
Oct 11, 20262,1052,54072.0%
Oct 10, 20262,3332,53157.7%
Oct 9, 20262,3382,53157.1%
Oct 8, 20262,4652,56429.1%
Oct 7, 20262,5352,58214.8%

Station report

Chair Mountain Meteorological Station, 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 10,293 ft above sea level, 32 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 20.34 inHg and the temperature at 22.3 F.

Section from sea level of where Chair Mountain Meteorological Station stands in the atmosphere, height to scale: the station 10,293 feet above sea level with 32 per cent of the air below it; the standard atmosphere's pressure there, 20.34 inches of mercury, and temperature, 22.3 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 390447107175001FIG. D WHERE CHAIR MOUNTAIN METEOROLOGICAL STATION 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 ATMOSPHERECHAIR MOUNTAIN METEOROLOGICAL STATION32 PER CENT OF THE AIR BELOW IT10,293 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 HERE20.34 inHgSTANDARD TEMPERATURE HERE22.3 FTITLEChair Mountain Meteorological Station, the columnSTATION REPORT · DCP 390447107175001TYPESECTIONSCALEHEIGHT TO SCALEREVFROM THE REGISTER SHEET 1 of 3DATE2026-10-16IDSR-390447107175001-1DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

2The sun

Contents

On Oct 16 the noon sun stands 42 degrees above the horizon at 39.08 N, and the day is 11 h 00 min long. Level ground there takes 67 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Chair Mountain Meteorological Station, angles true: on Oct 16 it stands 42 degrees above the horizon, against 74 at the June solstice, 51 at the equinoxes and 27 at the December solstice; the day is 11 h 00 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 390447107175001FIG. E THE SUN AT CHAIR MOUNTAIN METEOROLOGICAL STATIONELEVATION 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 74°EQUINOXES 51°DECEMBER SOLSTICE 27°OCT 16, 42°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 00 MINLEVEL GROUND TAKES 67 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 39.08 N; THE SUN'S DECLINATION -9.1°TITLEChair Mountain Meteorological Station, the sunSTATION REPORT · DCP 390447107175001TYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 2 of 3DATE2026-10-16IDSR-390447107175001-2DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

3The instrument

Contents

A data collection platform, 10,293 ft above sea level. Its sensors, as its network builds them.

Elevation of a data collection platform, Chair Mountain Meteorological Station, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 390447107175001FIG. 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 SCALETITLEChair Mountain Meteorological Station, the instrumentSTATION REPORT · DCP 390447107175001TYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 3 of 3DATE2026-10-16IDSR-390447107175001-3DRAWN 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 Chair Mountain Meteorological Station

Gauges

Weather instruments

Places