Cahaba River 3 E Marion Junction

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

3.83.4 arrival, 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

AL-BW-139rank 365; ahead on 247 score 96.3 against 96.2

Next below

WETA1rank 370; behind on longest silence 61 min against 75 min

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 35100.035.0 of 35 pointsAlabama median 98.8168 of 168 scheduled reports received in 7 days
2. Arrivalweight 1066.46.6 of 10 pointsAlabama median 87.5half its reports arrived within 27 min
3. Continuityweight 10100.010.0 of 10 pointsAlabama median 100.0longest silence 61 min, on a schedule of one report every 60 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.