Brandywine Creek at Chadds Ford

Ranking Statistics

247 score96.3of 100

Pennsylvania median

94.3the median score of 1,383 stations

Scoring higher

529stations in Pennsylvania

Sharing its score

9ranks 530 to 538

Points deducted

3.72.6 arrival, 0.7 forecast check, 0.4 reports received

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Pennsylvania median 100.0, 100.0, 92.9

Next above

SKVP1rank 530; ahead on median arrival 22 min 38 s against 22 min 52 s

Next below

RSSP1rank 535; behind on median arrival 22 min 52 s against 22 min 53 s

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 3598.834.6 of 35 pointsPennsylvania median 95.8166 of 168 scheduled reports received in 7 days
2. Arrivalweight 1074.37.4 of 10 pointsPennsylvania median 94.8half its reports arrived within 23 min
3. Continuityweight 10100.010.0 of 10 pointsPennsylvania 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 medianPennsylvania median 100.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianPennsylvania median 100.0-
6. Forecast checkweight 10-9.3 of 10 points, at the medianPennsylvania median 92.9-

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