Big Black River at Big Black

Ranking Statistics

247 score96.4of 100

Maine median

94.7the median score of 422 stations

Scoring higher

169stations in Maine

Sharing its score

3ranks 170 to 172

Points deducted

3.62.6 arrival, 0.9 forecast check, 0.1 accuracy

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Maine median 99.4, 100.0, 91.1

Next above

DOVM1rank 170; ahead on median arrival 22 min 51 s against 22 min 52 s

Next below

BLAM1rank 173; behind on 247 score 96.4 against 96.2

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 35100.035.0 of 35 pointsMaine median 97.6168 of 168 scheduled reports received in 7 days
2. Arrivalweight 1074.37.4 of 10 pointsMaine median 98.8half its reports arrived within 23 min
3. Continuityweight 10100.010.0 of 10 pointsMaine median 100.0longest silence 64 min, on a schedule of one report every 60 min
4. Accuracyweight 20-19.9 of 20 points, at the medianMaine median 99.4-
5. Instrument checksweight 15-15.0 of 15 points, at the medianMaine median 100.0-
6. Forecast checkweight 10-9.1 of 10 points, at the medianMaine median 91.1-

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