runwayinuse

0U2 Copper Basin

31
WIND_INFERRED 90%

Runway 31 — favored by the wind (10 kt at 320° true)

Based on wind only — no traffic or ATIS to confirm. No D-ATIS feed here — a voice ATIS/AWOS may exist; check the frequency. No ADS-B traffic data available.

certainty: 90% evidence: WEAK no tower now

N 31 13

Wind 320° true at 10 kt · VFR · 39 min old · from KSUN (27.1 nm away)

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31 99% 4700 ft · 10 kt head, 0 kt x-left
13 <1% 4700 ft · 10 kt TAIL, 0 kt x-right
Why — evidence behind this answer

Runway 31

Runway 13

Sources consulted

sourcestatus agenote
D_ATISUNAVAILABLE No D-ATIS at this field
METAROK 39 min Nearest station KSUN (27.1 nm away)
ADSBUNAVAILABLE No ADS-B track history here yet
NOTAMOK
CIFPNOT_CONFIGURED Instrument procedures: phase 4

Recent operations

No operations observed in the last hour. (No ADS-B track history here yet)

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0U2 field & runways

Copper Basin, Mackay, Idaho. Field elevation 7920 ft. Non-towered (NON-ATCT). Magnetic variation 16.0°E on record, 11.9°E today.

The FAA's variation of record is the number this field was surveyed against; the second is where north points now, from WMM2025. It is moving 0.097°/year west — about 1° every 10 years — which is why runway numbers eventually stop matching their pavement.

Runway data from the FAA NASR 01 Oct 2026 cycle. Where NASR locates both thresholds, the true heading is the bearing between them rather than NASR's whole-degree alignment. Magnetic is that heading against today's declination from WMM2025, not the field's variation of record — so it can differ from the chart by the gap between the two shown above. The number painted on the runway is the one ATC uses.
RunwayTrueMagnetic Number LengthSurfacePattern Notes
13 140.3° 128.4° matches 4,700 ft TURF left
31 320.3° 308.4° matches 4,700 ft TURF left

Generated 09:13:57Z · auto-refreshes · JSON