Storm Station
Sign in

Beside a road

RWIS network, identified by the register

Identifier
MX9212
Latitude
41.57565 N
Longitude
90.36233 W
Elevation
-
Rank
759of 1,060 in Iowa, Oct 16
Observed
3:25 AMCDT, 38 minutes ago
Air temperature
50F
Dew point
45F
Relative humidity
81%

Ranking Statistics

On the radar over I-80 @ Mississippi River BridgeReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

Beside a road

Drawn as the kind of place it stands at. 95 instruments in Iowa stand at one.

Station charts

I-80 @ Mississippi River Bridge Report

Rank 759 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 score89.7of 100

Iowa median
94.7the median score of 1,060 stations
Scoring higher
758stations in Iowa
Sharing its score
3ranks 759 to 761
Points deducted
10.35.0 arrival, 2.8 reports received, 1.6 forecast check, 0.9 continuity
Counted at the median
Forecast checknot measured at this station; Iowa median 83.8
Next above
LGNI4rank 758; ahead on 247 score 89.8 against 89.7
Next below
IA-BT-23rank 760; behind on reports received 91.9% against 85.7%

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 3592.032.2 of 35 pointsIowa median 99.0618 of 672 scheduled reports received in 7 days
  2. Arrivalweight 1050.45.0 of 10 pointsIowa median 82.9half its reports arrived within 35 min
  3. Continuityweight 1090.99.1 of 10 pointsIowa median 100.0longest silence 60 min, on a schedule of one report every 15 min
  4. Accuracyweight 20100.020.0 of 20 pointsIowa median 100.0its temperature against the airport station KMLI, 12.1 miles away, over 552 readings: typical difference 2.3 °F beyond a steady offset of +0.8 °F
  5. Instrument checksweight 15100.015.0 of 15 pointsIowa median 100.00 of 552 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 (45 min), none for 72 (18 h)
Accuracy
Full marks within 2.7 °F of its reference, typically, none beyond 9.2 °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
759of 1,060 in Iowa, Oct 16
Days reported, 30 days
0 of 30
Time to reach Storm Station
35 min9 in 10 within 40 min
Against its reference, 30 days
+1.8 °Fwarmer than the airport station KMLI, 12 miles away, on average over 1,070 readings; typical difference 3.4 °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: 618 of 672 scheduled reports received, 91.9%.

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. I-80 @ Mississippi River Bridge received 91.9 per cent, 618 of 672 scheduled reports, rank 759 of 1,060.WHERE IT RANKS IN IOWA, Oct 16THIS ONE: 91.9%, 618 OF 672, RANK 759 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 I-80 @ Mississippi River Bridge's rank in Iowa by how it reported, day by day, from 2026-10-04 to 2026-10-16: 2026-10-04 rank 1,022 of 1,027; 2026-10-05 rank 1,068 of 1,089; 2026-10-06 rank 1,063 of 1,100; 2026-10-07 rank 1,000 of 1,096; 2026-10-08 rank 945 of 1,054; 2026-10-09 rank 748 of 1,051; 2026-10-10 rank 747 of 1,051; 2026-10-11 rank 740 of 1,048; 2026-10-12 rank 737 of 1,040; 2026-10-13 rank 732 of 1,035; 2026-10-14 rank 760 of 1,036; 2026-10-15 rank 761 of 1,038; 2026-10-16 rank 759 of 1,060.ITS RANK IN IOWA, DAY BY DAYRANK, FIRST AT THE TOP15001,0001,500Oct 4Oct 7Oct 10Oct 13Oct 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, 20267591,06091.9%
Oct 15, 20267611,03893.0%
Oct 14, 20267601,03693.7%
Oct 13, 20267321,03594.7%
Oct 12, 20267371,04094.1%
Oct 11, 20267401,04895.2%
Oct 10, 20267471,05193.7%
Oct 9, 20267481,05193.3%
Oct 8, 20269451,05466.8%
Oct 7, 20261,0001,09653.4%
Oct 6, 20261,0631,10040.1%
Oct 5, 20261,0681,08926.6%
Oct 4, 20261,0221,02712.2%

Station report

I-80 @ Mississippi River Bridge, in 2 sheets

Drawn from the register, in the manner of the Field Book, and opened beside the plates that explain each part of it.

1The sun

Contents

On Oct 16 the noon sun stands 39 degrees above the horizon at 41.58 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 I-80 @ Mississippi River Bridge, 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 MX9212FIG. E THE SUN AT I-80 @ MISSISSIPPI RIVER BRIDGEELEVATION 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 41.58 N; THE SUN'S DECLINATION -9.1°TITLEI-80 @ Mississippi River Bridge, the sunSTATION REPORT · RWIS MX9212TYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 1 of 2DATE2026-10-16IDSR-MX9212-1DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

2The instrument

Contents

A road weather station. Its sensors, as its network builds them.

Elevation of a road weather station, I-80 @ Mississippi River Bridge, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MX9212FIG. F THE INSTRUMENTELEVATION OF A ROAD WEATHER STATION, EACH SENSOR WITH WHAT IT READTHE ROAD, IN SECTIONPAVEMENT SENSOR, SET IN THE ROAD-PROBE UNDER THE ROAD-AIR TEMPERATURE ON THE TOWER-WIND AT THE TOP OF THE TOWER-SCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLEI-80 @ Mississippi River Bridge, the instrumentSTATION REPORT · RWIS MX9212TYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 2 of 2DATE2026-10-16IDSR-MX9212-2DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

The instrumentWhat an instrument is FB-INS-001Stevenson screen and siting FB-INS-009

What it seesLapse rates and stability FB-ENG-005Water vapour as a gas FB-ENG-011Blizzard FB-EVT-081Ice storm FB-EVT-084Heat wave and heat dome FB-EVT-130Fire weather FB-EVT-139High wind FB-EVT-150Humidity variables FB-WAT-002Fog types FB-WAT-020

Near I-80 @ Mississippi River Bridge

Gauges

Weather instruments

Places