8W5 Apex Airpark

UNKNOWN

Unknown — not enough evidence to call a runway

We don't know, and saying so beats guessing. No D-ATIS feed here — a voice ATIS/AWOS may exist; check the frequency. No ADS-B traffic data available.

certainty: — evidence: NONE no tower now

Wind 140° true at 4 kt · MVFR · 22 min old · from KBFI (18.2 nm away)

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

17 50% 2491 ft · 3 kt head, 3 kt x-left

35 50% 2491 ft · 3 kt TAIL, 3 kt x-right · right traffic · calm-wind rwy

Why — evidence behind this answer

Runway 17

WIND 3 kt headwind, 3 kt left crosswind 22 min ago +0.12

Runway 35

PRIOR 35 is the designated calm-wind runway +0.50
WIND 3 kt TAILWIND, 3 kt right crosswind 22 min ago -0.40

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	22 min	Nearest station KBFI (18.2 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?

8W5 field & runways

Apex Airpark, Silverdale, Washington. Field elevation 525 ft. Non-towered (NON-ATCT). Magnetic variation 21.0°E on record, 14.9°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 0.125°/year west — about 1° every 8 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	187.5°	172.6°	matches rule gives runway 18 in ~19 yr	2,491 ft	ASPH	left
35	7.5°	352.6°	matches rule gives runway 36 in ~19 yr	2,491 ft	ASPH	right	calm-wind CALM WIND RWY IS RWY 35.

Generated 09:14:53Z · auto-refreshes · JSON

8W5 ☆ Apex Airpark