Bishops Head

Ranking Statistics

247 score71.3of 100

Maryland median

89.0the median score of 736 stations

Scoring higher

664stations in Maryland

Sharing its score

1no other station

Points deducted

28.714.8 reports received, 6.8 arrival, 6.1 continuity, 0.8 forecast check, 0.2 accuracy

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Maryland median 99.0, 100.0, 92.1

Next above

NDBC-BLTM2rank 664; ahead on 247 score 71.4 against 71.3

Next below

GW4076rank 666; behind on 247 score 71.3 against 70.9

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 3557.720.2 of 35 pointsMaryland median 82.1323 of 560 scheduled reports received in 7 days
2. Arrivalweight 1031.93.2 of 10 pointsMaryland median 94.0half its reports arrived within 44 min
3. Continuityweight 1038.83.9 of 10 pointsMaryland median 100.0longest silence 6.3 h, on a schedule of one report every 18 min
4. Accuracyweight 20-19.8 of 20 points, at the medianMaryland median 99.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianMaryland median 100.0-
6. Forecast checkweight 10-9.2 of 10 points, at the medianMaryland median 92.1-

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