Petersburg - Twelvemile Creek

Ranking Statistics

247 score97.6of 100

Alaska median

96.0the median score of 1,023 stations

Scoring higher

357stations in Alaska

Sharing its score

37ranks 358 to 394

Points deducted

2.42.4 arrival

Counted at the median

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

Next above

PWHA2rank 363; ahead on median arrival 21 min 48 s against 21 min 49 s

Next below

APTA2rank 379; behind on longest silence 60 min against 76 min

Sharing its rank

14other 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 35100.035.0 of 35 pointsAlaska median 98.8168 of 168 scheduled reports received in 7 days
2. Arrivalweight 1076.47.6 of 10 pointsAlaska median 86.1half its reports arrived within 22 min
3. Continuityweight 10100.010.0 of 10 pointsAlaska median 100.0longest silence 60 min, 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.