Normandy Dam - Duck River

Ranking Statistics

247 score98.6of 100

Tennessee median

97.0the median score of 1,019 stations

Scoring higher

387stations in Tennessee

Sharing its score

10ranks 388 to 397

Points deducted

1.41.2 arrival, 0.2 forecast check

Counted at the median

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

Next above

MEMrank 388; ahead on median arrival 10 min 53 s against 15 min 53 s

Next below

CLCT1rank 391; behind on longest silence 60 min against 75 min

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 pointsTennessee median 98.8168 of 168 scheduled reports received in 7 days
2. Arrivalweight 1088.28.8 of 10 pointsTennessee median 100.0half its reports arrived within 16 min
3. Continuityweight 10100.010.0 of 10 pointsTennessee 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 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.