Dam Neck Canal at Dam Neck Annex

Ranking Statistics

247 score98.1of 100

Virginia median

95.9the median score of 1,541 stations

Scoring higher

471stations in Virginia

Sharing its score

16ranks 472 to 487

Points deducted

1.91.0 arrival, 0.6 reports received, 0.4 forecast check

Counted at the median

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

Next above

MPPV2rank 481; ahead on median arrival 14 min 44 s against 14 min 53 s

Next below

SLRV2rank 486; behind on median arrival 14 min 53 s against 14 min 54 s

Sharing its rank

2other 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 3598.334.4 of 35 pointsVirginia median 97.9826 of 840 scheduled reports received in 7 days
2. Arrivalweight 1090.29.0 of 10 pointsVirginia median 92.7half its reports arrived within 15 min
3. Continuityweight 10100.010.0 of 10 pointsVirginia median 100.0longest silence 30 min, on a schedule of one report every 12 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.