KACB Antrim County

WIND_INFERRED 90%

Runway 20 — favored by the wind (10 kt at 180° 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

Wind 180° true at 10 kt · VFR · 38 min old · from KBFA (15.8 nm away)

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20 99% 5003 ft · 10 kt head, 3 kt x-left

2 <1% 5003 ft · 10 kt TAIL, 3 kt x-right

Active NOTAMs affecting runways

LIGHTING RWY 20 until 03-29 21:11Z

RWY 20 RWY END ID LGT U/S

Why — evidence behind this answer

Runway 20

WIND 10 kt headwind, 3 kt left crosswind 38 min ago +1.70

Runway 2

WIND 10 kt TAILWIND, 3 kt right crosswind 38 min ago -12.10

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	38 min	Nearest station KBFA (15.8 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)

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KACB field & runways

Antrim County, Bellaire, Michigan. Field elevation 623 ft. Non-towered (NON-ATCT). Magnetic variation 5.0°W on record, 6.4°W 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 0.004°/year east — about 1° every 250 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
2	17.4°	23.8°	matches	5,003 ft	ASPH	left
20	197.4°	203.8°	matches	5,003 ft	ASPH	left

Generated 09:12:37Z · auto-refreshes · JSON

KACB ☆ Antrim County