James River 9 NE Yankton

Ranking Statistics

247 score94.4of 100

South Dakota median

93.1the median score of 806 stations

Scoring higher

307stations in South Dakota

Sharing its score

3ranks 308 to 310

Points deducted

5.62.7 forecast check, 2.1 arrival, 0.8 reports received

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; South Dakota median 100.0, 100.0, 72.6

Next above

BSFS2rank 308; ahead on median arrival 20 min 19 s against 20 min 20 s

Next below

BLAS2rank 311; behind on 247 score 94.4 against 94.3

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 3597.634.2 of 35 pointsSouth Dakota median 98.2164 of 168 scheduled reports received in 7 days
2. Arrivalweight 1079.37.9 of 10 pointsSouth Dakota median 86.0half its reports arrived within 20 min
3. Continuityweight 10100.010.0 of 10 pointsSouth Dakota median 100.0longest silence 2 h, on a schedule of one report every 60 min
4. Accuracyweight 20-20.0 of 20 points, at the medianSouth Dakota median 100.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianSouth Dakota median 100.0-
6. Forecast checkweight 10-7.3 of 10 points, at the medianSouth Dakota median 72.6-

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