Ellet - NF Roanoke River

Ranking Statistics

247 score98.3of 100

Virginia median

95.9the median score of 1,541 stations

Scoring higher

332stations in Virginia

Sharing its score

105ranks 333 to 437

Points deducted

1.71.2 arrival, 0.4 forecast check, 0.2 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

MOUV2rank 412; ahead on median arrival 15 min 56 s against 15 min 57 s

Next below

LSGV2rank 422; behind on reports due 672 against 168, the longer record first

Sharing its rank

7other 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 3599.434.8 of 35 pointsVirginia median 97.9668 of 672 scheduled reports received in 7 days
2. Arrivalweight 1088.18.8 of 10 pointsVirginia median 92.7half its reports arrived within 16 min
3. Continuityweight 10100.010.0 of 10 pointsVirginia median 100.0longest silence 30 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.