Big Sioux River AT Sioux Falls North Cliff

Ranking Statistics

247 score97.1of 100

South Dakota median

93.1the median score of 806 stations

Scoring higher

108stations in South Dakota

Sharing its score

8ranks 109 to 116

Points deducted

2.92.7 forecast check, 0.2 arrival

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; South Dakota median 100.0, 100.0, 72.6

Next above

PHPrank 109; ahead on median arrival 9 min 53 s against 10 min 54 s

Next below

WTWS2rank 114; behind on median arrival 10 min 54 s against 10 min 59 s

Sharing its rank

3other 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 pointsSouth Dakota median 98.2168 of 168 scheduled reports received in 7 days
2. Arrivalweight 1098.29.8 of 10 pointsSouth Dakota median 86.0half its reports arrived within 11 min
3. Continuityweight 10100.010.0 of 10 pointsSouth Dakota 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 medianSouth Dakota median 100.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianSouth Dakota median 100.0-
6. Forecast checkweight 10-7.3 of 10 points, at the medianSouth Dakota median 72.6-

The score is the weighted mean of its six parts, from the last 7 days. How a station is ranked sets out each part.