PASM St Mary'S

WIND_INFERRED 90%

Runway 17 — favored by the wind (12 kt at 140° 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 Class E

Wind 140° true at 12 kt G17 · IFR · 17 min old

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

17 93% 6000 ft · 9 kt head, 8 kt x-left

7 7% 1520 ft · 6 kt head, 11 kt x-right

25 <1% 1520 ft · 6 kt TAIL, 11 kt x-left

35 <1% 6000 ft · 9 kt TAIL, 8 kt x-right

Why — evidence behind this answer

Runway 17

WIND 9 kt headwind, 8 kt left crosswind 17 min ago +2.03
IMC_APCH IFR conditions and 17 has an instrument approach +1.30
PRIOR runway length 6000 ft +0.14

Runway 7

WIND 6 kt headwind, 11 kt right crosswind 17 min ago +1.04
PRIOR runway length 1520 ft -0.14

Runway 25

WIND 6 kt TAILWIND, 11 kt left crosswind 17 min ago -7.92
PRIOR runway length 1520 ft -0.14

Runway 35

WIND 9 kt TAILWIND, 8 kt right crosswind 17 min ago -18.22
PRIOR runway length 6000 ft +0.14

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	17 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?

PASM field & runways

St Mary'S, St Mary'S, Alaska. Field elevation 315 ft. Class E airspace. Non-towered (NON-ATCT). Magnetic variation 7.0°E on record, 8.3°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 0.296°/year west — about 1° every 3 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	182.4°	174.1°	matches rule gives runway 18 in ~3 yr	6,000 ft	GRAVEL	left	ILS
25	257.4°	249.0°	matches	1,520 ft	GRAVEL	left
35	2.4°	354.1°	matches rule gives runway 36 in ~3 yr	6,000 ft	GRAVEL	left
7	77.3°	69.0°	matches	1,520 ft	GRAVEL	left

Generated 11:12:44Z · auto-refreshes · JSON

PASM ☆ St Mary'S