South River at Cornwall Iflows

Ranking Statistics

247 score96.2of 100

Virginia median

95.9the median score of 1,541 stations

Scoring higher

735stations in Virginia

Sharing its score

11ranks 736 to 746

Points deducted

3.81.8 continuity, 1.2 arrival, 0.5 reports received, 0.4 forecast check

Counted at the median

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

Next above

HFXV2rank 742; ahead on median arrival 15 min 54 s against 15 min 57 s

Next below

BEAV2rank 744; behind on reports received 98.6% against 98.5%

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 3598.734.5 of 35 pointsVirginia median 97.9663 of 672 scheduled reports received in 7 days
2. Arrivalweight 1088.18.8 of 10 pointsVirginia median 92.7half its reports arrived within 16 min
3. Continuityweight 1082.38.2 of 10 pointsVirginia median 100.0longest silence 79 min, on a schedule of one report every 15 min
4. Accuracyweight 20-20.0 of 20 points, at the medianVirginia median 100.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianVirginia median 100.0-
6. Forecast checkweight 10-9.7 of 10 points, at the medianVirginia median 96.5-

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