Ranking Statistics
247 score97.0of 100
- Arkansas median
- 96.0the median score of 678 stations
- Scoring higher
- 237stations in Arkansas
- Sharing its score
- 17ranks 238 to 254
- Points deducted
- 3.02.6 arrival, 0.3 forecast check, 0.1 accuracy
- Counted at the median
- Accuracy, instrument checks, forecast checknot measured at this station; Arkansas median 99.3, 100.0, 97.3
- Sharing its rank
- 16other 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.
- Reports receivedweight 35100.035.0 of 35 pointsArkansas median 99.4168 of 168 scheduled reports received in 7 days
- Arrivalweight 1074.47.4 of 10 pointsArkansas median 80.4half its reports arrived within 23 min
- Continuityweight 10100.010.0 of 10 pointsArkansas median 100.0longest silence 60 min, on a schedule of one report every 60 min
- Accuracyweight 20-19.9 of 20 points, at the medianArkansas median 99.3-
- Instrument checksweight 15-15.0 of 15 points, at the medianArkansas median 100.0-
- Forecast checkweight 10-9.7 of 10 points, at the medianArkansas median 97.3-
The score is the weighted mean of its six parts, from the last 7 days. How a station is ranked sets out each part.
How each part is scored
- Reports received
- Full marks for every scheduled report received, none for none, in proportion between
- Arrival
- Full marks for a median arrival within 10 min, none at 60 min
- Continuity
- Full marks for a longest silence of 3 reports or less (3 h), none for 72 (72 h)
- Accuracy
- Full marks within 1.5 °F of its reference, typically, none beyond 8.0 °F
- Instrument checks
- Full marks for no reading failed, none for 5 per cent or more
- Forecast check
- Full marks within 2 °F of the forecast on average, none at 8 °F
The reports received are counted from the network's own archive of this station's reports. Its 247 rank is counted from Storm Station's own record, which holds less than 7 days of it so far: 168 of 168 scheduled reports received, 100%.