S39 Prineville

PROBABLE 60%

Runway 16 — 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. No ADS-B traffic data available.

certainty: 60% evidence: WEAK no tower now

Wind 230° true at 11 kt · VFR · 24 min old · from KBDN (16.9 nm away)

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

16 57% 3536 ft · 6 kt head, 9 kt x-right

29 41% 5405 ft · 4 kt head, 10 kt x-left · calm-wind rwy

11 1% 5405 ft · 4 kt TAIL, 10 kt x-right

34 <1% 3536 ft · 6 kt TAIL, 9 kt x-left

Why — evidence behind this answer

Runway 16

WIND 6 kt headwind, 9 kt right crosswind 24 min ago +0.90
PRIOR runway length 3536 ft -0.04

Runway 29

WIND 4 kt headwind, 10 kt left crosswind 24 min ago +0.48
PRIOR runway length 5405 ft +0.04

Runway 11

WIND 4 kt TAILWIND, 10 kt right crosswind 24 min ago -2.99
PRIOR runway length 5405 ft +0.04

Runway 34

WIND 6 kt TAILWIND, 9 kt left crosswind 24 min ago -5.58
PRIOR runway length 3536 ft -0.04

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	24 min	Nearest station KBDN (16.9 nm away)
ADSB	UNAVAILABLE		No ADS-B track history here yet
NOTAM	OK
CIFP	NOT_CONFIGURED		Instrument procedures: phase 4

Recent operations

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

Was this right?

S39 field & runways

Prineville, Prineville, Oregon. Field elevation 3251 ft. Non-towered (NON-ATCT). Magnetic variation 14.0°E on record, 13.9°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 0.109°/year west — about 1° every 9 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
11	119.4°	105.5°	matches	5,405 ft	ASPH	left
16	171.5°	157.6°	matches	3,536 ft	ASPH	left
29	299.4°	285.5°	matches	5,405 ft	ASPH	left	calm-wind CALM WIND RWY 29
34	351.5°	337.6°	matches	3,536 ft	ASPH	left

Generated 10:19:23Z · auto-refreshes · JSON

S39 ☆ Prineville