Cumberland River NNE Old Hickory Dam Tailwater

Ranking Statistics

247 score98.8of 100

Tennessee median

97.0the median score of 1,019 stations

Scoring higher

373stations in Tennessee

Sharing its score

11ranks 374 to 384

Points deducted

1.20.6 arrival, 0.4 reports received, 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

SHOT1rank 377; ahead on reports received 99.4% against 98.8%

Next below

IGGT1rank 385; behind on 247 score 98.8 against 98.7

Sharing its rank

3other 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 3598.834.6 of 35 pointsTennessee median 98.8166 of 168 scheduled reports received in 7 days
2. Arrivalweight 1093.89.4 of 10 pointsTennessee median 100.0half its reports arrived within 13 min
3. Continuityweight 10100.010.0 of 10 pointsTennessee median 100.0longest silence 2 h, 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.