Mississippi River at McGregor

Ranking Statistics

247 score96.1of 100

Iowa median

94.7the median score of 1,060 stations

Scoring higher

286stations in Iowa

Sharing its score

17ranks 287 to 303

Points deducted

3.92.3 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

SPOI4rank 287; ahead on median arrival 21 min 27 s against 21 min 28 s

Next below

EMTI4rank 295; behind on median arrival 21 min 28 s against 21 min 31 s

Sharing its rank

5other 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 1077.17.7 of 10 pointsIowa median 82.9half its reports arrived within 21 min
3. Continuityweight 10100.010.0 of 10 pointsIowa median 100.0longest silence 60 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.