Drawn as the kind of place it stands at. 98 instruments in Virginia stand at one.
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Station charts
Meteorological Station Along RT 117 At Roanoke Report
Rank 1,093 of 1,520 in Virginia, Oct 11. 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.
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 3570.624.7 of 35 pointsVirginia median 96.7356 of 504 scheduled reports received in 7 days
Arrivalweight 10100.010.0 of 10 pointsVirginia median 92.7half its reports arrived within 8 min
Continuityweight 10100.010.0 of 10 pointsVirginia median 100.0longest silence 40 min, on a schedule of one report every 20 min
Accuracyweight 2085.217.0 of 20 pointsVirginia median 99.8its temperature against the airport station KROA, 2.0 miles away, over 144 readings: typical difference 2.7 °F beyond a steady offset of -1.6 °F
Instrument checksweight 15100.015.0 of 15 pointsVirginia median 100.00 of 144 readings failed their check against its reference station
Forecast checkweight 10-9.6 of 10 points, at the medianVirginia median 96.2-
The score is the weighted mean of its six parts, from the last 7 days. How a station is ranked sets out each part.
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 (60 min), none for 72 (24 h)
Accuracy
Full marks within 1.7 °F of its reference, typically, none beyond 8.2 °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
384 of 50476.1% of its schedule, 390 reports in all
Days reported, 30 days
-
Longest silence, 7 days
40 minfrom Oct 8, 1:25 AM
Latest report
Oct 11, 9:00 AMlocal time
Time to reach Storm Station
8 min9 in 10 within 8 min
Against its reference, 30 days
-1.4 °Fcooler than the airport station KROA, 2.0 miles away, on average over 168 readings; typical difference 2.9 °F
From Storm Station's own record of every report it heard from this station.
Against its reference: each temperature this station reports is compared with the nearest airport or climate reference station that reported within half an hour, up to 15 miles away. The figure is its reading less the reference's, on average, as both were reported; the typical difference is the root mean square. The difference in height is shown where both heights are known.
Its schedule is one report every 20 min, 72 in 24 hours. Two reports in the same 20 min count as one received.
The ranking these charts were drawn from, as tables
Share of scheduled reports received
Stations
100%
253
90 to 99%
597
80 to 89%
143
70 to 79%
117
60 to 69%
24
50 to 59%
211
40 to 49%
72
30 to 39%
26
20 to 29%
22
10 to 19%
50
0 to 9%
5
Day
Rank
Stations ranked
Share received
Oct 11, 2026
1,093
1,520
70.6%
Oct 10, 2026
1,210
1,530
56.9%
Oct 9, 2026
1,217
1,529
56.5%
Oct 8, 2026
1,425
1,534
28.5%
Oct 7, 2026
1,441
1,526
14.2%
Station report
Meteorological Station Along RT 117 At Roanoke, in 3 sheets
Drawn from the register, in the manner of the Field Book, and opened beside the plates that explain each part of it.
At 1,026 ft above sea level, 4 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 28.83 inHg and the temperature at 55.3 F.
On Oct 11 the noon sun stands 45 degrees above the horizon at 37.31 N, and the day is 11 h 16 min long. Level ground there takes 71 per cent of the noon sunlight a surface facing the sun would.