Ditch 81

Ranking Statistics

247 score89.6of 100

Arkansas median

96.0the median score of 678 stations

Scoring higher

508stations in Arkansas

Sharing its score

30ranks 509 to 538

Points deducted

10.410.0 arrival, 0.3 forecast check, 0.1 accuracy

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Arkansas median 99.3, 100.0, 97.3

Next above

PVEA4rank 515; ahead on median arrival 74 min 23 s against 74 min 49 s

Next below

SHDA4rank 523; behind on reports received 100% against 71.4%

Sharing its rank

5other 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 pointsArkansas median 99.4168 of 168 scheduled reports received in 7 days
2. Arrivalweight 100.00.0 of 10 pointsArkansas median 80.4half its reports arrived within 75 min
3. Continuityweight 10100.010.0 of 10 pointsArkansas median 100.0longest silence 2 h, on a schedule of one report every 60 min
4. Accuracyweight 20-19.9 of 20 points, at the medianArkansas median 99.3-
5. Instrument checksweight 15-15.0 of 15 points, at the medianArkansas median 100.0-
6. Forecast checkweight 10-9.7 of 10 points, at the medianArkansas median 97.3-

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