KMRF Marfa Muni

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. Weather observation is 5053 minutes old — treat with caution.

certainty: — evidence: NONE no tower now

Wind 080° true at 9 kt · · 5053 min old

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

13 18% 6203 ft · 5 kt head, 7 kt x-left

31 18% 6203 ft · 5 kt TAIL, 7 kt x-right

22 17% 5309 ft · 7 kt TAIL, 5 kt x-left

4 17% 5309 ft · 7 kt head, 5 kt x-right

9 15% 2825 ft · 9 kt head, 2 kt x-left

27 15% 2825 ft · 9 kt TAIL, 2 kt x-right

Why — evidence behind this answer

Runway 13

PRIOR runway length 6203 ft +0.06
WIND 5 kt headwind, 7 kt left crosswind 5053 min ago +0.00

Runway 31

PRIOR runway length 6203 ft +0.06
WIND 5 kt TAILWIND, 7 kt right crosswind 5053 min ago -0.00

Runway 22

PRIOR runway length 5309 ft +0.03
WIND 7 kt TAILWIND, 5 kt left crosswind 5053 min ago -0.00

Runway 4

PRIOR runway length 5309 ft +0.03
WIND 7 kt headwind, 5 kt right crosswind 5053 min ago +0.00

Runway 9

PRIOR runway length 2825 ft -0.09
WIND 9 kt headwind, 2 kt left crosswind 5053 min ago +0.00

Runway 27

PRIOR runway length 2825 ft -0.09
WIND 9 kt TAILWIND, 2 kt right crosswind 5053 min ago -0.00

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	5053 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?

KMRF field & runways

Marfa Muni, Marfa, Texas. Field elevation 4849 ft. Non-towered (NON-ATCT). Magnetic variation 8.0°E on record, 6.2°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 0.075°/year west — about 1° every 13 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
13	135.5°	129.2°	matches	6,203 ft	ASPH	left
22	225.2°	218.9°	matches	5,309 ft	ASPH	left
27	270.6°	264.4°	runway 26 by the rule today · 5.6° past	2,825 ft	DIRT	left
31	315.5°	309.2°	matches	6,203 ft	ASPH	left
4	45.2°	38.9°	matches	5,309 ft	ASPH	left
9	90.6°	84.4°	runway 8 by the rule today · 5.6° past	2,825 ft	DIRT	left

Generated 09:14:29Z · auto-refreshes · JSON

KMRF ☆ Marfa Muni