South Anna River 4 NW Ashland (river)

Ranking Statistics

247 score97.9of 100

Virginia median

95.9the median score of 1,541 stations

Scoring higher

495stations in Virginia

Sharing its score

13ranks 496 to 508

Points deducted

2.11.6 arrival, 0.4 forecast check, 0.1 reports received

Counted at the median

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

Next above

ANAV2rank 497; ahead on reports received 100% against 99.5%

Next below

03177120rank 499; behind on reports received 99.5% against 99.4%

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 3599.634.9 of 35 pointsVirginia median 97.9223 of 224 scheduled reports received in 7 days
2. Arrivalweight 1083.68.4 of 10 pointsVirginia median 92.7half its reports arrived within 18 min
3. Continuityweight 10100.010.0 of 10 pointsVirginia median 100.0longest silence 60 min, on a schedule of one report every 45 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.