North Fork Spring at Purcell

Ranking Statistics

247 score94.7of 100

Missouri median

96.2the median score of 1,014 stations

Scoring higher

571stations in Missouri

Sharing its score

11ranks 572 to 582

Points deducted

5.34.1 arrival, 0.6 reports received, 0.3 forecast check, 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

LSRM7rank 576; ahead on median arrival 30 min 16 s against 30 min 17 s

Next below

CHOM7rank 583; behind on 247 score 94.7 against 94.6

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 3598.234.4 of 35 pointsMissouri median 98.9165 of 168 scheduled reports received in 7 days
2. Arrivalweight 1059.45.9 of 10 pointsMissouri median 94.3half its reports arrived within 30 min
3. Continuityweight 10100.010.0 of 10 pointsMissouri median 100.0longest silence 2 h, on a schedule of one report every 60 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.