Black River

Ranking Statistics

247 score95.5of 100

Arizona median

91.5the median score of 1,869 stations

Scoring higher

643stations in Arizona

Sharing its score

28ranks 644 to 671

Points deducted

4.52.9 arrival, 0.7 accuracy, 0.6 forecast check, 0.2 reports received

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Arizona median 96.5, 100.0, 93.8

Next above

WBCA3rank 644; ahead on reports received 100% against 99.4%

Next below

BNMA3rank 647; behind on median arrival 24 min 35 s against 24 min 48 s

Sharing its rank

1other 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 3599.434.8 of 35 pointsArizona median 85.7167 of 168 scheduled reports received in 7 days
2. Arrivalweight 1070.87.1 of 10 pointsArizona median 79.1half its reports arrived within 25 min
3. Continuityweight 10100.010.0 of 10 pointsArizona median 100.0longest silence 2 h, on a schedule of one report every 60 min
4. Accuracyweight 20-19.3 of 20 points, at the medianArizona median 96.5-
5. Instrument checksweight 15-15.0 of 15 points, at the medianArizona median 100.0-
6. Forecast checkweight 10-9.4 of 10 points, at the medianArizona median 93.8-

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