Des Moines 17 E

Ranking Statistics

247 score88.0of 100

Iowa median

94.7the median score of 1,060 stations

Scoring higher

801stations in Iowa

Sharing its score

2ranks 802 to 803

Points deducted

12.010.0 arrival, 1.6 forecast check, 0.4 reports received

Counted at the median

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

Next above

GRNI4rank 801; ahead on 247 score 88.1 against 88.0

Next below

DESI4rank 803; behind on reports received 98.8% against 79.1%

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 3598.834.6 of 35 pointsIowa median 99.083 of 84 scheduled reports received in 7 days
2. Arrivalweight 100.00.0 of 10 pointsIowa median 82.9half its reports arrived within 2.5 h
3. Continuityweight 10100.010.0 of 10 pointsIowa median 100.0longest silence 4.1 h, on a schedule of one report every 2 h
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.