Storm Station
Sign in

In a volunteer observer's own ground

CWOP network, identified by the register

Identifier
N7BBI
Latitude
41.59000 N
Longitude
90.54000 W
Elevation
728 ft
Rank
921of 1,060 in Iowa, Oct 16

Ranking Statistics

On the radar over Citizen station N7BBIReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

In a volunteer observer's own ground

Drawn as the kind of place it stands at. 1,000 instruments in Iowa stand at one.

Station charts

Citizen station N7BBI Report

Rank 921 of 1,060 in Iowa, 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 score81.5of 100

Iowa median
94.7the median score of 1,060 stations
Scoring higher
920stations in Iowa
Sharing its score
2ranks 921 to 922
Points deducted
18.515.0 reports received, 1.9 continuity, 1.6 forecast check
Counted at the median
Forecast checknot measured at this station; Iowa median 83.8
Next above
CW0005rank 920; ahead on 247 score 81.6 against 81.5
Next below
IA-DC-6rank 922; behind on reports due 168 against 7, the longer record first

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 3557.120.0 of 35 pointsIowa median 99.096 of 168 scheduled reports received in 7 days
  2. Arrivalweight 10100.010.0 of 10 pointsIowa median 82.9half its reports arrived within 16 s
  3. Continuityweight 1080.98.1 of 10 pointsIowa median 100.0longest silence 5.5 h, on a schedule of one report every 60 min
  4. Accuracyweight 20100.020.0 of 20 pointsIowa median 100.0its temperature against the airport station KDVN, 3.3 miles away, over 78 readings: typical difference 1.2 °F beyond a steady offset of +0.7 °F
  5. Instrument checksweight 15100.015.0 of 15 pointsIowa median 100.00 of 78 readings failed their check against its reference station
  6. Forecast checkweight 10-8.4 of 10 points, at the medianIowa median 83.8-

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 1.8 °F of its reference, typically, none beyond 8.3 °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
921of 1,060 in Iowa, Oct 16
Time to reach Storm Station
17 s9 in 10 within 31 s
Against its reference, 30 days
+1.1 °Fwarmer than the airport station KDVN, 3.3 miles away, on average over 96 readings; typical difference 2.0 °F; also compared with 1 other reference station

The reports received are counted from the network's own archive of this station's reports. Its 247 rank is counted from Storm Station's own record, which holds less than 7 days of it so far: 96 of 168 scheduled reports received, 57.1%.

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.

Chart of the 1,060 ranked stations in Iowa 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, 5; 10 to 19 per cent, 2; 20 to 29 per cent, 12; 30 to 39 per cent, 2; 40 to 49 per cent, 47; 50 to 59 per cent, 72; 60 to 69 per cent, 10; 70 to 79 per cent, 118; 80 to 89 per cent, 80; 90 to 99 per cent, 425; 100 per cent, 287. Citizen station N7BBI received 57.1 per cent, 96 of 168 scheduled reports, rank 921 of 1,060.WHERE IT RANKS IN IOWA, Oct 16THIS ONE: 57.1%, 96 OF 168, RANK 921 OF 1,060PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9510 to 19220 to 291230 to 39240 to 494750 to 597260 to 691070 to 7911880 to 898090 to 99425100287STATIONS, LOG SCALE
Chart of Citizen station N7BBI's rank in Iowa by how it reported, day by day, from 2026-10-08 to 2026-10-16: 2026-10-08 rank 1,031 of 1,054; 2026-10-09 rank 1,027 of 1,051; 2026-10-10 rank 1,027 of 1,051; 2026-10-11 rank 1,008 of 1,048; 2026-10-12 rank 986 of 1,040; 2026-10-13 rank 937 of 1,035; 2026-10-14 rank 915 of 1,036; 2026-10-15 rank 902 of 1,038; 2026-10-16 rank 921 of 1,060.ITS RANK IN IOWA, DAY BY DAYRANK, FIRST AT THE TOP15001,0001,500Oct 8Oct 10Oct 12Oct 14Oct 16
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%287
90 to 99%425
80 to 89%80
70 to 79%118
60 to 69%10
50 to 59%72
40 to 49%47
30 to 39%2
20 to 29%12
10 to 19%2
0 to 9%5
DayRankStations rankedShare received
Oct 16, 20269211,06057.1%
Oct 15, 20269021,03857.1%
Oct 14, 20269151,03654.1%
Oct 13, 20269371,03549.4%
Oct 12, 20269861,04042.2%
Oct 11, 20261,0081,04834.7%
Oct 10, 20261,0271,05127.1%
Oct 9, 20261,0271,05127.3%
Oct 8, 20261,0311,05419.2%

Station report

Citizen station N7BBI, 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 728 ft above sea level, 3 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.14 inHg and the temperature at 56.4 F.

Section from sea level of where Citizen station N7BBI stands in the atmosphere, height to scale: the station 728 feet above sea level with 3 per cent of the air below it; the standard atmosphere's pressure there, 29.14 inches of mercury, and temperature, 56.4 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT N7BBIFIG. D WHERE CITIZEN STATION N7BBI 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 ATMOSPHERECITIZEN STATION N7BBI3 PER CENT OF THE AIR BELOW IT728 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 HERE29.14 inHgSTANDARD TEMPERATURE HERE56.4 FTITLECitizen station N7BBI, the columnSTATION REPORT · CWOP N7BBITYPESECTIONSCALEHEIGHT TO SCALEREVFROM THE REGISTER SHEET 1 of 3DATE2026-10-16IDSR-N7BBI-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 39 degrees above the horizon at 41.59 N, and the day is 10 h 55 min long. Level ground there takes 63 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station N7BBI, angles true: on Oct 16 it stands 39 degrees above the horizon, against 72 at the June solstice, 48 at the equinoxes and 25 at the December solstice; the day is 10 h 55 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT N7BBIFIG. E THE SUN AT CITIZEN STATION N7BBIELEVATION 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 72°EQUINOXES 48°DECEMBER SOLSTICE 25°OCT 16, 39°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 55 MINLEVEL GROUND TAKES 63 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 41.59 N; THE SUN'S DECLINATION -9.1°TITLECitizen station N7BBI, the sunSTATION REPORT · CWOP N7BBITYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 2 of 3DATE2026-10-16IDSR-N7BBI-2DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

3The instrument

Contents

A weather instrument, 728 ft above sea level. Its sensors, as its network builds them.

Elevation of the instrument, Citizen station N7BBI, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT N7BBIFIG. F THE INSTRUMENTELEVATION OF THE INSTRUMENT, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE-PRECIPITATION GAUGE-SCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLECitizen station N7BBI, the instrumentSTATION REPORT · CWOP N7BBITYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 3 of 3DATE2026-10-16IDSR-N7BBI-3DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

Near Citizen station N7BBI

Gauges

Weather instruments

Places