Mississippi River at Natchez

Ranking Statistics

247 score95.3of 100

Mississippi median

95.7the median score of 459 stations

Scoring higher

237stations in Mississippi

Sharing its score

8ranks 238 to 245

Points deducted

4.74.1 arrival, 0.6 forecast check

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Mississippi median 100.0, 100.0, 93.8

Next above

SRRM6rank 235; ahead on 247 score 95.4 against 95.3

Next below

LOGM6rank 244; behind on median arrival 30 min 36 s against 30 min 37 s

Sharing its rank

5other 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 35100.035.0 of 35 pointsMississippi median 99.4168 of 168 scheduled reports received in 7 days
2. Arrivalweight 1058.85.9 of 10 pointsMississippi median 86.8half its reports arrived within 31 min
3. Continuityweight 10100.010.0 of 10 pointsMississippi median 100.0longest silence 64 min, on a schedule of one report every 60 min
4. Accuracyweight 20-20.0 of 20 points, at the medianMississippi median 100.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianMississippi median 100.0-
6. Forecast checkweight 10-9.4 of 10 points, at the medianMississippi median 93.8-

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