80OK Bison Hill

PROBABLE 67%

Runway 17 — 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: 67% evidence: NONE no tower now

Wind 160° true at 3 kt · VFR · 11 min old · from KOKC (13.8 nm away)

▶ Listen live — ATIS/CTAF on LiveATC opens LiveATC’s own player · verify the broadcast yourself

17 62% 2112 ft · 3 kt head, 1 kt x-left · right traffic

35 38% 2112 ft · 3 kt TAIL, 1 kt x-right

Why — evidence behind this answer

Runway 17

WIND 3 kt headwind, 1 kt left crosswind 11 min ago +0.13

Runway 35

WIND 3 kt TAILWIND, 1 kt right crosswind 11 min ago -0.37

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	11 min	Nearest station KOKC (13.8 nm away)
ADSB	WARMING_UP	5088 min	Only 0 min of track history so far
NOTAM	OK
CIFP	NOT_CONFIGURED		Instrument procedures: phase 4

Recent operations

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

Was this right?

80OK field & runways

Bison Hill, Norman, Oklahoma. Field elevation 1304 ft. Non-towered (NON-ATCT). Private use.

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 0.076°/year west — about 1° every 13 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.
Runway	True	Magnetic	Number	Length	Surface	Pattern	Notes
17	176.3°	173.3°	matches rule gives runway 18 in ~22 yr	2,112 ft	TURF-GRVL	right
35	356.3°	353.3°	matches rule gives runway 36 in ~22 yr	2,112 ft	TURF-GRVL

Generated 13:02:32Z · auto-refreshes · JSON

80OK ☆ Bison Hill