Chantilly - Franklin Middle

Ranking Statistics

247 score96.7of 100

Virginia median

95.9the median score of 1,541 stations

Scoring higher

667stations in Virginia

Sharing its score

10ranks 668 to 677

Points deducted

3.31.2 arrival, 0.9 continuity, 0.8 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

GFLV2rank 671; ahead on reports received 99.4% against 97.7%

Next below

BMPV2rank 675; behind on reports received 97.7% against 96.4%

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 3597.834.2 of 35 pointsVirginia median 97.9657 of 672 scheduled reports received in 7 days
2. Arrivalweight 1087.78.8 of 10 pointsVirginia median 92.7half its reports arrived within 16 min
3. Continuityweight 1090.99.1 of 10 pointsVirginia median 100.0longest silence 60 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.