Sandy River at Mercer

Ranking Statistics

247 score90.8of 100

Maine median

94.7the median score of 422 stations

Scoring higher

247stations in Maine

Sharing its score

1no other station

Points deducted

9.25.6 reports received, 2.5 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

RKWM1rank 247; ahead on 247 score 90.9 against 90.8

Next below

ME-KB-63rank 249; behind on 247 score 90.8 against 90.7

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 3583.929.4 of 35 pointsMaine median 97.6188 of 224 scheduled reports received in 7 days
2. Arrivalweight 1074.97.5 of 10 pointsMaine median 98.8half its reports arrived within 23 min
3. Continuityweight 10100.010.0 of 10 pointsMaine median 100.0longest silence 1.8 h, on a schedule of one report every 45 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.