Storm Station
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At a flood warning station

DCP network, identified by the register

Identifier
FCDMC-70501
Latitude
33.31500 N
Longitude
112.13361 W
Elevation
1,285 ft
Rank
1,558of 1,853 in Arizona, Oct 17

Ranking Statistics

On the radar over South Mountain FanReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

At a flood warning station

Drawn as the kind of place it stands at. 39 instruments in Arizona stand at one.

Station charts

South Mountain Fan Report

Rank 1,558 of 1,853 in Arizona, 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 score80.5of 100

Arizona median
88.7the median score of 1,853 stations
Scoring higher
1,556stations in Arizona
Sharing its score
2ranks 1,557 to 1,558
Points deducted
19.513.8 reports received, 4.9 continuity, 0.9 forecast check
Counted at the median
Forecast checknot measured at this station; Arizona median 91.0
Next above
EW9309rank 1,557; ahead on reports received 64.0% against 60.5%
Next below
N7PRCrank 1,559; behind on 247 score 80.5 against 80.4

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 3560.621.2 of 35 pointsArizona median 83.9407 of 672 scheduled reports received in 7 days
  2. Arrivalweight 10100.010.0 of 10 pointsArizona median 78.4half its reports arrived within 8 min
  3. Continuityweight 1051.45.1 of 10 pointsArizona median 100.0longest silence 3.5 h, on a schedule of one report every 15 min
  4. Accuracyweight 20100.020.0 of 20 pointsArizona median 98.0its temperature against the airport station KPHX, 10.8 miles away, over 134 readings: typical difference 2.5 °F beyond a steady offset of -0.7 °F
  5. Instrument checksweight 15100.015.0 of 15 pointsArizona median 100.00 of 134 readings failed their check against its reference station
  6. Forecast checkweight 10-9.1 of 10 points, at the medianArizona median 91.0-

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 2.6 °F of its reference, typically, none beyond 9.1 °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
1,558of 1,853 in Arizona, Oct 17
Schedule
every 15 minon the hour's :00, :30 and :45
Reports received, 24 hours
32 of 9633.3% of its schedule
Reports received, 7 days
391 of 67258.1% of its schedule
Days reported, 30 days
-
Longest silence, 7 days
11 h 03 minfrom Oct 16, 8:30 PM
Latest report
Oct 16, 8:30 PMlocal time
Time to reach Storm Station
8 min9 in 10 within 13 min
Against its reference, 30 days
-0.5 °Fcooler than the airport station KPHX, 11 miles away, on average over 142 readings; typical difference 2.6 °F

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

Against its reference: each temperature this station reports is compared with the nearest airport or climate reference station that reported within half an hour, up to 15 miles away. The figure is its reading less the reference's, on average, as both were reported; the typical difference is the root mean square. The difference in height is shown where both heights are known.

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 1,853 ranked stations in Arizona 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, 0; 10 to 19 per cent, 22; 20 to 29 per cent, 6; 30 to 39 per cent, 3; 40 to 49 per cent, 147; 50 to 59 per cent, 292; 60 to 69 per cent, 43; 70 to 79 per cent, 408; 80 to 89 per cent, 110; 90 to 99 per cent, 311; 100 per cent, 511. South Mountain Fan received 60.5 per cent, 407 of 672 scheduled reports, rank 1,558 of 1,853.WHERE IT RANKS IN ARIZONA, Oct 17THIS ONE: 60.5%, 407 OF 672, RANK 1,558 OF 1,853PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 910 to 192220 to 29630 to 39340 to 4914750 to 5929260 to 694370 to 7940880 to 8911090 to 99311100511STATIONS, LOG SCALE
Chart of South Mountain Fan's rank in Arizona by how it reported, day by day, from 2026-10-09 to 2026-10-17: 2026-10-09 rank 1,560 of 1,661; 2026-10-10 rank 1,560 of 1,661; 2026-10-11 rank 1,619 of 1,656; 2026-10-12 rank 1,677 of 1,722; 2026-10-13 rank 1,695 of 1,762; 2026-10-14 rank 1,678 of 1,845; 2026-10-15 rank 1,544 of 1,880; 2026-10-16 rank 1,417 of 1,869; 2026-10-17 rank 1,558 of 1,853.ITS RANK IN ARIZONA, DAY BY DAYRANK, FIRST AT THE TOP15001,0001,5002,000Oct 9Oct 11Oct 13Oct 15Oct 17
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%511
90 to 99%311
80 to 89%110
70 to 79%408
60 to 69%43
50 to 59%292
40 to 49%147
30 to 39%3
20 to 29%6
10 to 19%22
0 to 9%0
DayRankStations rankedShare received
Oct 17, 20261,5581,85360.5%
Oct 16, 20261,4171,86961.3%
Oct 15, 20261,5441,88052.6%
Oct 14, 20261,6781,84543.7%
Oct 13, 20261,6951,76234.2%
Oct 12, 20261,6771,72225.4%
Oct 11, 20261,6191,65616.6%
Oct 10, 20261,5601,6618.4%
Oct 9, 20261,5601,6618.1%

Station report

South Mountain Fan, 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 1,285 ft above sea level, 5 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 28.56 inHg and the temperature at 54.4 F.

Section from sea level of where South Mountain Fan stands in the atmosphere, height to scale: the station 1,285 feet above sea level with 5 per cent of the air below it; the standard atmosphere's pressure there, 28.56 inches of mercury, and temperature, 54.4 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FCDMC-70501FIG. D WHERE SOUTH MOUNTAIN FAN 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 ATMOSPHERESOUTH MOUNTAIN FAN5 PER CENT OF THE AIR BELOW IT1,285 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 HERE28.56 inHgSTANDARD TEMPERATURE HERE54.4 FTITLESouth Mountain Fan, the columnSTATION REPORT · DCP FCDMC-70501TYPESECTIONSCALEHEIGHT TO SCALEREVFROM THE REGISTER SHEET 1 of 3DATE2026-10-17IDSR-FCDMC70501-1DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

2The sun

Contents

On Oct 17 the noon sun stands 47 degrees above the horizon at 33.31 N, and the day is 11 h 10 min long. Level ground there takes 73 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at South Mountain Fan, angles true: on Oct 17 it stands 47 degrees above the horizon, against 80 at the June solstice, 57 at the equinoxes and 33 at the December solstice; the day is 11 h 10 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FCDMC-70501FIG. E THE SUN AT SOUTH MOUNTAIN FANELEVATION 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 80°EQUINOXES 57°DECEMBER SOLSTICE 33°OCT 17, 47°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 10 MINLEVEL GROUND TAKES 73 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 33.31 N; THE SUN'S DECLINATION -9.5°TITLESouth Mountain Fan, the sunSTATION REPORT · DCP FCDMC-70501TYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 2 of 3DATE2026-10-17IDSR-FCDMC70501-2DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

3The instrument

Contents

A data collection platform, 1,285 ft above sea level. Its sensors, as its network builds them.

Elevation of a data collection platform, South Mountain Fan, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FCDMC-70501FIG. 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 SCALETITLESouth Mountain Fan, the instrumentSTATION REPORT · DCP FCDMC-70501TYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 3 of 3DATE2026-10-17IDSR-FCDMC70501-3DRAWN 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 South Mountain Fan

Gauges

Weather instruments

Places