KAIO Atlantic Muni

WIND_INFERRED 80%

Runway 20 — favored by the wind (9 kt at 200° 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: 80% evidence: WEAK no tower now

Wind 200° true at 9 kt · VFR · 18 min old

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

20 84% 5000 ft · 9 kt head, 0 kt x-left

12 13% 3132 ft · 2 kt head, 9 kt x-right

30 3% 3132 ft · 2 kt TAIL, 9 kt x-left

2 <1% 5000 ft · 9 kt TAIL, 0 kt x-right

Why — evidence behind this answer

Runway 20

WIND 9 kt headwind, 0 kt left crosswind 18 min ago +1.96
PRIOR runway length 5000 ft +0.05

Runway 12

WIND 2 kt headwind, 9 kt right crosswind 18 min ago +0.16
PRIOR runway length 3132 ft -0.05

Runway 30

WIND 2 kt TAILWIND, 9 kt left crosswind 18 min ago -1.28
PRIOR runway length 3132 ft -0.05

Runway 2

WIND 9 kt TAILWIND, 0 kt right crosswind 18 min ago -12.57
PRIOR runway length 5000 ft +0.05

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	18 min
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?

KAIO field & runways

Atlantic Muni, Atlantic, Iowa. Field elevation 1165 ft. Non-towered (NON-ATCT). Magnetic variation 4.0°E on record, 1.3°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 0.06°/year west — about 1° every 17 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
12	123.1°	121.8°	matches rule gives runway 13 in ~53 yr	3,132 ft	ASPH	left
2	21.7°	20.4°	matches	5,000 ft	CONC
20	201.7°	200.4°	matches	5,000 ft	CONC
30	303.1°	301.8°	matches rule gives runway 31 in ~53 yr	3,132 ft	ASPH	left

Generated 11:12:36Z · auto-refreshes · JSON

KAIO ☆ Atlantic Muni