Grand Rapids - Mississippi River

Ranking Statistics

247 score94.0of 100

Minnesota median

93.3the median score of 1,965 stations

Scoring higher

918stations in Minnesota

Sharing its score

7ranks 919 to 925

Points deducted

6.03.5 arrival, 1.7 forecast check, 0.8 reports received

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Minnesota median 100.0, 100.0, 83.2

Next above

ORWM5rank 918; ahead on 247 score 94.1 against 94.0

Next below

KAWM5rank 926; behind on 247 score 94.0 against 93.9

Sharing its rank

6other 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 3597.634.2 of 35 pointsMinnesota median 96.4164 of 168 scheduled reports received in 7 days
2. Arrivalweight 1064.86.5 of 10 pointsMinnesota median 96.8half its reports arrived within 28 min
3. Continuityweight 10100.010.0 of 10 pointsMinnesota median 100.0longest silence 2 h, on a schedule of one report every 60 min
4. Accuracyweight 20-20.0 of 20 points, at the medianMinnesota median 100.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianMinnesota median 100.0-
6. Forecast checkweight 10-8.3 of 10 points, at the medianMinnesota median 83.2-

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