Chicago - Sanitary and Ship Canal

Ranking Statistics

247 score81.5of 100

Illinois median

95.9the median score of 1,393 stations

Scoring higher

1,161stations in Illinois

Sharing its score

3ranks 1,162 to 1,164

Points deducted

18.56.9 arrival, 6.0 continuity, 5.1 reports received, 0.5 forecast check

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Illinois median 100.0, 100.0, 94.7

Next above

FW3055rank 1,161; ahead on 247 score 81.6 against 81.5

Next below

EW5858rank 1,163; behind on reports received 85.4% against 54.7%

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 3585.429.9 of 35 pointsIllinois median 99.1287 of 336 scheduled reports received in 7 days
2. Arrivalweight 1031.13.1 of 10 pointsIllinois median 96.3half its reports arrived within 44 min
3. Continuityweight 1040.34.0 of 10 pointsIllinois median 100.0longest silence 10 h, on a schedule of one report every 30 min
4. Accuracyweight 20-20.0 of 20 points, at the medianIllinois median 100.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianIllinois median 100.0-
6. Forecast checkweight 10-9.5 of 10 points, at the medianIllinois median 94.7-

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