Grandville - Grand River

Ranking Statistics

247 score95.7of 100

Michigan median

95.5the median score of 979 stations

Scoring higher

461stations in Michigan

Sharing its score

16ranks 462 to 477

Points deducted

4.33.5 arrival, 0.8 forecast check

Counted at the median

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

Next above

WHTM4rank 464; ahead on longest silence 60 min against 78 min

Next below

04043016rank 473; behind on median arrival 27 min 36 s against 27 min 48 s

Sharing its rank

7other 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 pointsMichigan median 98.2168 of 168 scheduled reports received in 7 days
2. Arrivalweight 1064.86.5 of 10 pointsMichigan median 96.9half its reports arrived within 28 min
3. Continuityweight 10100.010.0 of 10 pointsMichigan median 100.0longest silence 78 min, 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.