Storm Station

At a river or reservoir gauge

DCP network, identified by the register

Identifier
384933077155801
Latitude
38.82576 N
Longitude
77.26606 W
Elevation
325 ft
Rank
1,041of 1,520 in Virginia, Oct 11
Observed
3:35 AMEDT, 38 minutes ago
Precipitation in the gauge's latest reading
0.02in

Ranking Statistics

On the radar over Met STN At Little Run Elem School At FairfaxReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

At a river or reservoir gauge

Drawn as the kind of place it stands at. 98 instruments in Virginia stand at one.

Station charts

Met STN At Little Run Elem School At Fairfax Report

Rank 1,041 of 1,520 in Virginia, Oct 11. 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 score88.0of 100

Virginia median
94.7the median score of 1,520 stations
Scoring higher
1,040stations in Virginia
Sharing its score
3ranks 1,041 to 1,043
Points deducted
12.010.0 reports received, 1.6 arrival, 0.4 forecast check
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; Virginia median 99.8, 100.0, 96.2
Next above
LHNV2rank 1,040; ahead on 247 score 88.1 against 88.0
Next below
03177120rank 1,042; behind on longest silence 60 min against 120 min

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 3571.425.0 of 35 pointsVirginia median 96.7120 of 168 scheduled reports received in 7 days
  2. Arrivalweight 1084.48.4 of 10 pointsVirginia median 92.7half its reports arrived within 18 min
  3. Continuityweight 10100.010.0 of 10 pointsVirginia median 100.0longest silence 60 min, on a schedule of one report every 60 min
  4. Accuracyweight 20-20.0 of 20 points, at the medianVirginia median 99.8-
  5. Instrument checksweight 15-15.0 of 15 points, at the medianVirginia median 100.0-
  6. Forecast checkweight 10-9.6 of 10 points, at the medianVirginia median 96.2-

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
1,041of 1,520 in Virginia, Oct 11
Schedule
every houron the hour's :35
Reports received, 24 hours
24 of 24100% of its schedule
Reports received, 7 days
126 of 16875.0% of its schedule, 127 reports in all
Days reported, 30 days
-
Longest silence, 7 days
75 minfrom Oct 11, 4:35 AM
Latest report
Oct 11, 4:35 AMlocal time
Time to reach Storm Station
18 min9 in 10 within 18 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 1,520 ranked stations in Virginia on Oct 11 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, 5; 10 to 19 per cent, 50; 20 to 29 per cent, 22; 30 to 39 per cent, 26; 40 to 49 per cent, 72; 50 to 59 per cent, 211; 60 to 69 per cent, 24; 70 to 79 per cent, 117; 80 to 89 per cent, 143; 90 to 99 per cent, 597; 100 per cent, 253. Met STN At Little Run Elem School At Fairfax received 71.4 per cent, 120 of 168 scheduled reports, rank 1,041 of 1,520.WHERE IT RANKS IN VIRGINIA, Oct 11THIS ONE: 71.4%, 120 OF 168, RANK 1,041 OF 1,520PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9510 to 195020 to 292230 to 392640 to 497250 to 5921160 to 692470 to 7911780 to 8914390 to 99597100253STATIONS, LOG SCALE
Chart of Met STN At Little Run Elem School At Fairfax's rank in Virginia by how it reported, day by day, from 2026-10-07 to 2026-10-11: 2026-10-07 rank 1,412 of 1,526; 2026-10-08 rank 1,382 of 1,534; 2026-10-09 rank 1,151 of 1,529; 2026-10-10 rank 1,147 of 1,530; 2026-10-11 rank 1,041 of 1,520.ITS RANK IN VIRGINIA, DAY BY DAYRANK, FIRST AT THE TOP15001,0001,500Oct 7Oct 8Oct 9Oct 10Oct 11
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%253
90 to 99%597
80 to 89%143
70 to 79%117
60 to 69%24
50 to 59%211
40 to 49%72
30 to 39%26
20 to 29%22
10 to 19%50
0 to 9%5
DayRankStations rankedShare received
Oct 11, 20261,0411,52071.4%
Oct 10, 20261,1471,53057.7%
Oct 9, 20261,1511,52957.1%
Oct 8, 20261,3821,53429.1%
Oct 7, 20261,4121,52614.2%

Station report

Met STN At Little Run Elem School At Fairfax, 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 325 ft above sea level, 1 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.57 inHg and the temperature at 57.8 F.

Section from sea level of where Met STN At Little Run Elem School At Fairfax stands in the atmosphere, height to scale: the station 325 feet above sea level with 1 per cent of the air below it; the standard atmosphere's pressure there, 29.57 inches of mercury, and temperature, 57.8 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 384933077155801FIG. D WHERE MET STN AT LITTLE RUN ELEM SCHOOL AT FAIRFAX 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 ATMOSPHEREMET STN AT LITTLE RUN ELEM SCHOOL AT FAIRFAX1 PER CENT OF THE AIR BELOW IT325 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 HERE29.57 inHgSTANDARD TEMPERATURE HERE57.8 FTITLEMet STN At Little Run Elem School At Fairfax, the columnSTATION REPORT · DCP 384933077155801TYPESECTIONSCALEHEIGHT TO SCALEREVFROM THE REGISTER SHEET 1 of 3DATE2026-10-11IDSR-384933077155801-1DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

From the Field Book

2The sun

Contents

On Oct 11 the noon sun stands 44 degrees above the horizon at 38.83 N, and the day is 11 h 13 min long. Level ground there takes 69 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Met STN At Little Run Elem School At Fairfax, angles true: on Oct 11 it stands 44 degrees above the horizon, against 75 at the June solstice, 51 at the equinoxes and 28 at the December solstice; the day is 11 h 13 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 384933077155801FIG. E THE SUN AT MET STN AT LITTLE RUN ELEM SCHOOL AT FAIRFAXELEVATION 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 75°EQUINOXES 51°DECEMBER SOLSTICE 28°OCT 11, 44°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 13 MINLEVEL GROUND TAKES 69 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 38.83 N; THE SUN'S DECLINATION -7.2°TITLEMet STN At Little Run Elem School At Fairfax, the sunSTATION REPORT · DCP 384933077155801TYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 2 of 3DATE2026-10-11IDSR-384933077155801-2DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

3The instrument

Contents

A data collection platform, 325 ft above sea level. Its sensors, as its network builds them.

Elevation of a data collection platform, Met STN At Little Run Elem School At Fairfax, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 384933077155801FIG. 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 SCALETITLEMet STN At Little Run Elem School At Fairfax, the instrumentSTATION REPORT · DCP 384933077155801TYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 3 of 3DATE2026-10-11IDSR-384933077155801-3DRAWN 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 Met STN At Little Run Elem School At Fairfax

Gauges

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