Little Sioux River at Spencer

Ranking Statistics

247 score94.6of 100

Iowa median

94.7the median score of 1,060 stations

Scoring higher

555stations in Iowa

Sharing its score

50ranks 556 to 605

Points deducted

5.43.4 arrival, 1.6 forecast check, 0.4 reports received

Counted at the median

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

Next above

SLFI4rank 577; ahead on reports due 672 against 336, the longer record first

Next below

CBII4rank 587; behind on reports due 336 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 3598.834.6 of 35 pointsIowa median 99.0332 of 336 scheduled reports received in 7 days
2. Arrivalweight 1066.16.6 of 10 pointsIowa median 82.9half its reports arrived within 27 min
3. Continuityweight 10100.010.0 of 10 pointsIowa median 100.0longest silence 60 min, on a schedule of one report every 30 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.