Sanford Dam

Ranking Statistics

247 score96.1of 100

Michigan median

95.5the median score of 979 stations

Scoring higher

430stations in Michigan

Sharing its score

20ranks 431 to 450

Points deducted

3.92.5 arrival, 0.8 forecast check, 0.6 reports received

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Michigan median 100.0, 100.0, 92.3

Next above

VLCM4rank 432; ahead on median arrival 22 min 28 s against 22 min 36 s

Next below

ESTM4rank 450; behind on median arrival 22 min 36 s against 22 min 37 s

Sharing its rank

10other 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 3598.234.4 of 35 pointsMichigan median 98.2165 of 168 scheduled reports received in 7 days
2. Arrivalweight 1074.87.5 of 10 pointsMichigan median 96.9half its reports arrived within 23 min
3. Continuityweight 10100.010.0 of 10 pointsMichigan median 100.0longest silence 2 h, on a schedule of one report every 60 min
4. Accuracyweight 20-20.0 of 20 points, at the medianMichigan median 100.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianMichigan median 100.0-
6. Forecast checkweight 10-9.2 of 10 points, at the medianMichigan median 92.3-

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