Northwest Branch Anacostia River at Takoma Park - Riggs Rd

Ranking Statistics

247 score62.1of 100

Maryland median

89.0the median score of 736 stations

Scoring higher

708stations in Maryland

Sharing its score

2ranks 709 to 710

Points deducted

37.929.8 reports received, 6.5 continuity, 0.8 forecast check, 0.6 arrival, 0.2 accuracy

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Maryland median 99.0, 100.0, 92.1

Next above

RSPrank 709; ahead on reports received 56.5% against 14.8%

Next below

DW8795rank 711; behind on 247 score 62.1 against 62.0

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 3514.95.2 of 35 pointsMaryland median 82.1100 of 672 scheduled reports received in 7 days
2. Arrivalweight 1094.19.4 of 10 pointsMaryland median 94.0half its reports arrived within 13 min
3. Continuityweight 1034.63.5 of 10 pointsMaryland median 100.0longest silence 6 h, on a schedule of one report every 15 min
4. Accuracyweight 20-19.8 of 20 points, at the medianMaryland median 99.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianMaryland median 100.0-
6. Forecast checkweight 10-9.2 of 10 points, at the medianMaryland median 92.1-

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