Storm Station
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At a river or reservoir gauge

DCP network, identified by the register

Identifier
07069220
Latitude
36.47718 N
Longitude
91.52457 W
Elevation
471 ft
Rank
238of 678 in Arkansas, Oct 16
Observed
4:30 AMCDT, 34 minutes ago
Precipitation in the gauge's latest reading
0in

Ranking Statistics

On the radar over Spring River near Mammoth SpringReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

At a river or reservoir gauge

Drawn as the kind of place it stands at. 113 instruments in Arkansas stand at one.

Station charts

Spring River near Mammoth Spring Report

Rank 238 of 678 in Arkansas, 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 score97.0of 100

Arkansas median
96.0the median score of 678 stations
Scoring higher
237stations in Arkansas
Sharing its score
17ranks 238 to 254
Points deducted
3.02.6 arrival, 0.3 forecast check, 0.1 accuracy
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; Arkansas median 99.3, 100.0, 97.3
Next above
SLOA4rank 236; ahead on 247 score 97.1 against 97.0
Next below
APTA4rank 255; behind on 247 score 97.0 against 96.9
Sharing its rank
16other 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 pointsArkansas median 99.4168 of 168 scheduled reports received in 7 days
  2. Arrivalweight 1074.47.4 of 10 pointsArkansas median 80.4half its reports arrived within 23 min
  3. Continuityweight 10100.010.0 of 10 pointsArkansas median 100.0longest silence 60 min, on a schedule of one report every 60 min
  4. Accuracyweight 20-19.9 of 20 points, at the medianArkansas median 99.3-
  5. Instrument checksweight 15-15.0 of 15 points, at the medianArkansas median 100.0-
  6. Forecast checkweight 10-9.7 of 10 points, at the medianArkansas median 97.3-

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 (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
238of 678 in Arkansas, Oct 16
Schedule
every houron the hour's :30
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, 10:30 AM
Latest report
Oct 16, 9:30 AMlocal time
Time to reach Storm Station
23 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 hour, 24 in 24 hours. Two reports in the same hour count as one received.

Chart of the 678 ranked stations in Arkansas 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, 2; 20 to 29 per cent, 8; 30 to 39 per cent, 3; 40 to 49 per cent, 22; 50 to 59 per cent, 40; 60 to 69 per cent, 20; 70 to 79 per cent, 33; 80 to 89 per cent, 48; 90 to 99 per cent, 218; 100 per cent, 283. Spring River near Mammoth Spring received 100.0 per cent, 168 of 168 scheduled reports, rank 238 of 678.WHERE IT RANKS IN ARKANSAS, Oct 16THIS ONE: 100.0%, 168 OF 168, RANK 238 OF 678PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9110 to 19220 to 29830 to 39340 to 492250 to 594060 to 692070 to 793380 to 894890 to 99218100283STATIONS, LOG SCALE
Chart of Spring River near Mammoth Spring's rank in Arkansas by how it reported, day by day, from 2026-10-07 to 2026-10-16: 2026-10-07 rank 616 of 700; 2026-10-08 rank 611 of 701; 2026-10-09 rank 528 of 686; 2026-10-10 rank 528 of 686; 2026-10-11 rank 490 of 681; 2026-10-12 rank 394 of 676; 2026-10-13 rank 220 of 674; 2026-10-14 rank 223 of 669; 2026-10-15 rank 231 of 674; 2026-10-16 rank 238 of 678.ITS RANK IN ARKANSAS, DAY BY DAYRANK, FIRST AT THE TOP1200400600800Oct 7Oct 9Oct 11Oct 13Oct 15Oct 16
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%283
90 to 99%218
80 to 89%48
70 to 79%33
60 to 69%20
50 to 59%40
40 to 49%22
30 to 39%3
20 to 29%8
10 to 19%2
0 to 9%1
DayRankStations rankedShare received
Oct 16, 2026238678100.0%
Oct 15, 2026231674100.0%
Oct 14, 2026223669100.0%
Oct 13, 2026220674100.0%
Oct 12, 202639467686.3%
Oct 11, 202649068172.0%
Oct 10, 202652868657.7%
Oct 9, 202652868657.1%
Oct 8, 202661170129.1%
Oct 7, 202661670014.8%

Station report

Spring River near Mammoth Spring, 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 471 ft above sea level, 2 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.42 inHg and the temperature at 57.3 F.

Section from sea level of where Spring River near Mammoth Spring stands in the atmosphere, height to scale: the station 471 feet above sea level with 2 per cent of the air below it; the standard atmosphere's pressure there, 29.42 inches of mercury, and temperature, 57.3 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 07069220FIG. D WHERE SPRING RIVER NEAR MAMMOTH SPRING 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 ATMOSPHERESPRING RIVER NEAR MAMMOTH SPRING2 PER CENT OF THE AIR BELOW IT471 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 HERE29.42 inHgSTANDARD TEMPERATURE HERE57.3 FTITLESpring River near Mammoth Spring, the columnSTATION REPORT · DCP 07069220TYPESECTIONSCALEHEIGHT TO SCALEREVFROM THE REGISTER SHEET 1 of 3DATE2026-10-16IDSR-07069220-1DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

2The sun

Contents

On Oct 16 the noon sun stands 44 degrees above the horizon at 36.48 N, and the day is 11 h 06 min long. Level ground there takes 70 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Spring River near Mammoth Spring, angles true: on Oct 16 it stands 44 degrees above the horizon, against 77 at the June solstice, 54 at the equinoxes and 30 at the December solstice; the day is 11 h 06 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 07069220FIG. E THE SUN AT SPRING RIVER NEAR MAMMOTH SPRINGELEVATION 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 77°EQUINOXES 54°DECEMBER SOLSTICE 30°OCT 16, 44°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 06 MINLEVEL GROUND TAKES 70 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 36.48 N; THE SUN'S DECLINATION -9.1°TITLESpring River near Mammoth Spring, the sunSTATION REPORT · DCP 07069220TYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 2 of 3DATE2026-10-16IDSR-07069220-2DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

3The instrument

Contents

A data collection platform, 471 ft above sea level. Its sensors, as its network builds them.

Elevation of a data collection platform, Spring River near Mammoth Spring, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 07069220FIG. 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 SCALETITLESpring River near Mammoth Spring, the instrumentSTATION REPORT · DCP 07069220TYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 3 of 3DATE2026-10-16IDSR-07069220-3DRAWN 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 Spring River near Mammoth Spring

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