Upper Johns CRK Iflows

Ranking Statistics

247 score95.0of 100

Virginia median

95.9the median score of 1,541 stations

Scoring higher

828stations in Virginia

Sharing its score

26ranks 829 to 854

Points deducted

5.04.7 arrival, 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

SPDV2rank 829; ahead on median arrival 33 min 14 s against 33 min 21 s

Next below

CALV2rank 832; behind on median arrival 33 min 21 s against 33 min 22 s

Sharing its rank

1other stations, equal on every measure

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 35100.035.0 of 35 pointsVirginia median 97.9168 of 168 scheduled reports received in 7 days
2. Arrivalweight 1053.35.3 of 10 pointsVirginia median 92.7half its reports arrived within 33 min
3. Continuityweight 10100.010.0 of 10 pointsVirginia median 100.0longest silence 60 min, 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.