North River 1 NNE Ifc--Carlisle N 1st St

Ranking Statistics

247 score95.1of 100

Iowa median

94.7the median score of 1,060 stations

Scoring higher

372stations in Iowa

Sharing its score

25ranks 373 to 397

Points deducted

4.93.3 arrival, 1.6 forecast check

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Iowa median 100.0, 100.0, 83.8

Next above

CLTI4rank 374; ahead on median arrival 26 min 35 s against 26 min 36 s

Next below

CJTI4rank 398; behind on 247 score 95.1 against 95.0

Sharing its rank

21other 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 pointsIowa median 99.0168 of 168 scheduled reports received in 7 days
2. Arrivalweight 1066.86.7 of 10 pointsIowa median 82.9half its reports arrived within 27 min
3. Continuityweight 10100.010.0 of 10 pointsIowa median 100.0longest silence 63 min, on a schedule of one report every 60 min
4. Accuracyweight 20-20.0 of 20 points, at the medianIowa median 100.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianIowa median 100.0-
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.