Fourmile Run AT Alexandria

Ranking Statistics

247 score98.6of 100

Virginia median

95.9the median score of 1,541 stations

Scoring higher

297stations in Virginia

Sharing its score

8ranks 298 to 305

Points deducted

1.40.7 arrival, 0.4 forecast check, 0.3 reports received

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Virginia median 100.0, 100.0, 96.5

Next above

PYAV2rank 298; ahead on reports received 99.2% against 99.1%

Next below

RAWV2rank 300; behind on reports received 99.1% against 98.9%

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 3599.134.7 of 35 pointsVirginia median 97.9666 of 672 scheduled reports received in 7 days
2. Arrivalweight 1092.79.3 of 10 pointsVirginia median 92.7half its reports arrived within 14 min
3. Continuityweight 10100.010.0 of 10 pointsVirginia median 100.0longest silence 45 min, on a schedule of one report every 15 min
4. Accuracyweight 20-20.0 of 20 points, at the medianVirginia median 100.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianVirginia median 100.0-
6. Forecast checkweight 10-9.7 of 10 points, at the medianVirginia median 96.5-

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