1U3 Murphy

WIND_INFERRED 90%

Runway 12 — favored by the wind (7 kt at 130° 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 130° true at 7 kt · VFR · 31 min old · from KBOI (25.0 nm away)

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

12 99% 2500 ft · 7 kt head, 1 kt x-left

30 <1% 2500 ft · 7 kt TAIL, 1 kt x-right

Why — evidence behind this answer

Runway 12

WIND 7 kt headwind, 1 kt left crosswind 31 min ago +1.36

Runway 30

WIND 7 kt TAILWIND, 1 kt right crosswind 31 min ago -7.16

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	31 min	Nearest station KBOI (25.0 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?

1U3 field & runways

Murphy, Murphy, Idaho. Field elevation 2855 ft. Non-towered (NON-ATCT). Magnetic variation 17.0°E on record, 12.6°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 0.099°/year west — about 1° every 10 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
12	135.2°	122.6°	matches rule gives runway 13 in ~25 yr	2,500 ft	ASPH	left
30	315.2°	302.6°	matches rule gives runway 31 in ~25 yr	2,500 ft	ASPH	left

Generated 10:23:35Z · auto-refreshes · JSON

1U3 ☆ Murphy