North River 2 SE Norwalk

Ranking Statistics

247 score96.5of 100

Iowa median

94.7the median score of 1,060 stations

Scoring higher

269stations in Iowa

Sharing its score

2ranks 270 to 271

Points deducted

3.51.8 arrival, 1.6 forecast check

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Iowa median 100.0, 100.0, 83.8

Next above

RKDI4rank 267; ahead on 247 score 96.6 against 96.5

Next below

CRVI4rank 271; behind on reports due 229 against 168, the longer record first

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 pointsIowa median 99.0229 of 229 scheduled reports received in 7 days
2. Arrivalweight 1081.68.2 of 10 pointsIowa median 82.9half its reports arrived within 19 min
3. Continuityweight 10100.010.0 of 10 pointsIowa median 100.0longest silence 48 min, on a schedule of one report every 44 min
4. Accuracyweight 20-20.0 of 20 points, at the medianIowa median 100.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianIowa median 100.0-
6. Forecast checkweight 10-8.4 of 10 points, at the medianIowa median 83.8-

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