Mississippi River at Hannibal

Ranking Statistics

247 score95.6of 100

Missouri median

96.2the median score of 1,014 stations

Scoring higher

548stations in Missouri

Sharing its score

3ranks 549 to 551

Points deducted

4.43.5 arrival, 0.3 forecast check, 0.3 accuracy, 0.2 reports received

Counted at the median

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

Next above

SVRM7rank 548; ahead on 247 score 95.8 against 95.6

Next below

UNOrank 552; behind on 247 score 95.6 against 95.5

Sharing its rank

2other 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 3599.434.8 of 35 pointsMissouri median 98.9167 of 168 scheduled reports received in 7 days
2. Arrivalweight 1064.86.5 of 10 pointsMissouri median 94.3half its reports arrived within 28 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.