Koyukuk River below John River

Ranking Statistics

247 score98.0of 100

Alaska median

96.0the median score of 1,023 stations

Scoring higher

314stations in Alaska

Sharing its score

11ranks 315 to 325

Points deducted

2.01.4 arrival, 0.6 reports received

Counted at the median

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

Next above

HNRA2rank 322; ahead on median arrival 16 min 41 s against 16 min 49 s

Next below

PFTOrank 325; behind on reports received 98.2% against 97.0%

Sharing its rank

1other 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 3598.234.4 of 35 pointsAlaska median 98.8165 of 168 scheduled reports received in 7 days
2. Arrivalweight 1086.48.6 of 10 pointsAlaska median 86.1half its reports arrived within 17 min
3. Continuityweight 10100.010.0 of 10 pointsAlaska 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 medianAlaska median 100.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianAlaska median 100.0-
6. Forecast checkweight 10-10.0 of 10 points, at the medianAlaska median 100.0-

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