runwayinuse

O41 Watts-Woodland

18
PROBABLE 68%

Runway 18 — wind slightly favors it, low confidence

Based mostly on wind; no traffic or ATIS to confirm. No D-ATIS feed here — a voice ATIS/AWOS may exist; check the frequency. ADS-B tracking just started here — traffic history is still building.

certainty: 68% evidence: NONE no tower now

N 18 36

Wind 150° true at 4 kt · VFR · 26 min old · from KSMF (13.1 nm away)

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18 62% 3759 ft · 3 kt head, 3 kt x-left
36 38% 3759 ft · 3 kt TAIL, 3 kt x-right
Why — evidence behind this answer

Runway 18

Runway 36

Sources consulted

sourcestatus agenote
D_ATISUNAVAILABLE No D-ATIS at this field
METAROK 26 min Nearest station KSMF (13.1 nm away)
ADSBWARMING_UP 4542 min Only 0 min of track history so far
NOTAMOK
CIFPNOT_CONFIGURED Instrument procedures: phase 4

Recent operations

No operations observed in the last hour. (Only 0 min of track history so far)

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O41 field & runways

Watts-Woodland, Woodland, California. Field elevation 125 ft. Non-towered (NON-ATCT). Magnetic variation 14.0°E on record, 12.9°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 0.092°/year west — about 1° every 11 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
18 199.1° 186.2° runway 19 by the rule today · 6.2° past 3,759 ft ASPH
36 19.1° 6.2° runway 1 by the rule today · 6.2° past 3,759 ft ASPH

Generated 10:18:59Z · auto-refreshes · JSON