St Louis - Chain of Rocks

Ranking Statistics

247 score98.4of 100

Missouri median

96.2the median score of 1,014 stations

Scoring higher

204stations in Missouri

Sharing its score

23ranks 205 to 227

Points deducted

1.60.6 arrival, 0.3 forecast check, 0.3 reports received, 0.3 accuracy

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Missouri median 98.5, 100.0, 96.7

Next above

CLKM7rank 210; ahead on median arrival 13 min against 13 min 1 s

Next below

DESM7rank 215; behind on reports received 99.1% against 98.8%

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 3599.134.7 of 35 pointsMissouri median 98.9333 of 336 scheduled reports received in 7 days
2. Arrivalweight 1094.09.4 of 10 pointsMissouri median 94.3half its reports arrived within 13 min
3. Continuityweight 10100.010.0 of 10 pointsMissouri median 100.0longest silence 60 min, on a schedule of one report every 30 min
4. Accuracyweight 20-19.7 of 20 points, at the medianMissouri median 98.5-
5. Instrument checksweight 15-15.0 of 15 points, at the medianMissouri median 100.0-
6. Forecast checkweight 10-9.7 of 10 points, at the medianMissouri median 96.7-

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