Shell Rock River 1 WNW Ifc--Clarksville Hwy C33

Ranking Statistics

247 score85.9of 100

Iowa median

94.7the median score of 1,060 stations

Scoring higher

820stations in Iowa

Sharing its score

2ranks 821 to 822

Points deducted

14.16.3 continuity, 3.3 arrival, 2.9 reports received, 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

IA-BC-14rank 820; ahead on 247 score 86.0 against 85.9

Next below

3788A6351rank 822; behind on reports received 91.6% against 67.6%

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 3591.732.1 of 35 pointsIowa median 99.0616 of 672 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 1037.33.7 of 10 pointsIowa median 100.0longest silence 5.5 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.