Tennessee River at Perryville

Ranking Statistics

247 score99.5of 100

Tennessee median

97.0the median score of 1,019 stations

Scoring higher

282stations in Tennessee

Sharing its score

26ranks 283 to 308

Points deducted

0.50.3 reports received, 0.2 forecast check, 0.1 arrival

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Tennessee median 100.0, 100.0, 98.3

Next above

THLT1rank 286; ahead on median arrival 10 min 11 s against 10 min 18 s

Next below

DOVT1rank 300; behind on median arrival 10 min 18 s against 10 min 19 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 3599.134.7 of 35 pointsTennessee median 98.8333 of 336 scheduled reports received in 7 days
2. Arrivalweight 1099.49.9 of 10 pointsTennessee median 100.0half its reports arrived within 10 min
3. Continuityweight 10100.010.0 of 10 pointsTennessee median 100.0longest silence 60 min, on a schedule of one report every 30 min
4. Accuracyweight 20-20.0 of 20 points, at the medianTennessee median 100.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianTennessee median 100.0-
6. Forecast checkweight 10-9.8 of 10 points, at the medianTennessee median 98.3-

The score is the weighted mean of its six parts, from the last 7 days. How a station is ranked sets out each part.