Blackstone 5SSE - Nottoway River

Ranking Statistics

247 score97.5of 100

Virginia median

95.9the median score of 1,541 stations

Scoring higher

569stations in Virginia

Sharing its score

9ranks 570 to 578

Points deducted

2.51.7 arrival, 0.4 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

TRFV2rank 571; ahead on reports due 672 against 168, the longer record first

Next below

CNRV2rank 574; behind on median arrival 18 min 36 s against 18 min 40 s

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 3598.834.6 of 35 pointsVirginia median 97.9166 of 168 scheduled reports received in 7 days
2. Arrivalweight 1082.88.3 of 10 pointsVirginia median 92.7half its reports arrived within 19 min
3. Continuityweight 10100.010.0 of 10 pointsVirginia median 100.0longest silence 2 h, on a schedule of one report every 60 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.