Shell Rock River 3 N IFC--Plymouth IA 9

Ranking Statistics

247 score85.8of 100

Iowa median

94.7the median score of 1,060 stations

Scoring higher

822stations in Iowa

Sharing its score

2ranks 823 to 824

Points deducted

14.25.1 reports received, 4.1 continuity, 3.4 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

MUTI4rank 823; ahead on reports received 89.2% against 85.2%

Next below

FSWrank 825; behind on 247 score 85.8 against 85.6

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 3585.329.9 of 35 pointsIowa median 99.0573 of 672 scheduled reports received in 7 days
2. Arrivalweight 1066.46.6 of 10 pointsIowa median 82.9half its reports arrived within 27 min
3. Continuityweight 1059.15.9 of 10 pointsIowa median 100.0longest silence 2.8 h, on a schedule of one report every 15 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.