Drawn as the kind of place it stands at. 98 instruments in Virginia stand at one.
What the snow tracker reads here
Every instrument in this state
-in
Snow on the ground
Station charts
Pound River Below Flannagan Dam, Near Haysi Report
Rank 619 of 1,541 in Virginia, Oct 16. The 247 rank orders a state's stations by their 247 score out of 100: how reliably they report, how accurate their readings are against a reference station, how their readings pass their checks, and how they stand against the forecast.
Ranking Statistics
247 score97.1of 100
Virginia median
95.9the median score of 1,541 stations
Scoring higher
618stations in Virginia
Sharing its score
12ranks 619 to 630
Points deducted
2.92.6 arrival, 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
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.
Reports receivedweight 35100.035.0 of 35 pointsVirginia median 97.9168 of 168 scheduled reports received in 7 days
Arrivalweight 1074.47.4 of 10 pointsVirginia median 92.7half its reports arrived within 23 min
Continuityweight 10100.010.0 of 10 pointsVirginia median 100.0longest silence 60 min, on a schedule of one report every 60 min
Accuracyweight 20-20.0 of 20 points, at the medianVirginia median 100.0-
Instrument checksweight 15-15.0 of 15 points, at the medianVirginia median 100.0-
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.
How each part is scored
Reports received
Full marks for every scheduled report received, none for none, in proportion between
Arrival
Full marks for a median arrival within 10 min, none at 60 min
Continuity
Full marks for a longest silence of 3 reports or less (3 h), none for 72 (72 h)
Accuracy
Full marks within 1.5 °F of its reference, typically, none beyond 8.0 °F
Instrument checks
Full marks for no reading failed, none for 5 per cent or more
Forecast check
Full marks within 2 °F of the forecast on average, none at 8 °F
At 1,199 ft above sea level, 4 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 28.65 inHg and the temperature at 54.7 F.
On Oct 16 the noon sun stands 44 degrees above the horizon at 37.24 N, and the day is 11 h 04 min long. Level ground there takes 69 per cent of the noon sunlight a surface facing the sun would.