Black Warrior River 5 E Selden Lock and Dam

Ranking Statistics

247 score96.2of 100

Alabama median

95.6the median score of 798 stations

Scoring higher

365stations in Alabama

Sharing its score

7ranks 366 to 372

Points deducted

3.81.4 arrival, 1.1 reports received, 0.9 continuity, 0.5 forecast check

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Alabama median 100.0, 100.0, 95.4

Next above

OBLA1rank 371; ahead on reports received 99.1% against 97.0%

Next below

0357587400rank 373; behind on 247 score 96.2 against 96.1

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 3597.034.0 of 35 pointsAlabama median 98.8652 of 672 scheduled reports received in 7 days
2. Arrivalweight 1086.38.6 of 10 pointsAlabama median 87.5half its reports arrived within 17 min
3. Continuityweight 1090.99.1 of 10 pointsAlabama median 100.0longest silence 60 min, on a schedule of one report every 15 min
4. Accuracyweight 20-20.0 of 20 points, at the medianAlabama median 100.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianAlabama median 100.0-
6. Forecast checkweight 10-9.5 of 10 points, at the medianAlabama median 95.4-

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