Roanoke - Garnand Branch

Ranking Statistics

247 score95.6of 100

Virginia median

95.9the median score of 1,541 stations

Scoring higher

798stations in Virginia

Sharing its score

2ranks 799 to 800

Points deducted

4.42.5 arrival, 1.2 continuity, 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

0204297575rank 798; ahead on 247 score 95.7 against 95.6

Next below

CNAV2rank 800; behind on reports received 98.8% against 98.6%

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 97.9332 of 336 scheduled reports received in 7 days
2. Arrivalweight 1075.27.5 of 10 pointsVirginia median 92.7half its reports arrived within 22 min
3. Continuityweight 1088.48.8 of 10 pointsVirginia median 100.0longest silence 2.2 h, on a schedule of one report every 30 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.