KGMU Greenville Downtown

PROBABLE 60%

Runway 1 — weak lean on available evidence

No D-ATIS feed here — a voice ATIS/AWOS may exist; check the frequency. No ADS-B traffic data available. Weather observation is 2880 minutes old — treat with caution.

certainty: 60% evidence: NONE Class D

Wind 240° true at 4 kt · LIFR · 2880 min old

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

1 56% 5393 ft · 2 kt TAIL, 3 kt x-left

19 15% 5393 ft · 2 kt head, 3 kt x-right · right traffic

28 14% 4000 ft · 3 kt head, 2 kt x-left · right traffic

10 14% 4000 ft · 3 kt TAIL, 2 kt x-right

Active NOTAMs affecting runways

APCH OTS RWY 1 until 12-09 23:59Z

NAV ILS RWY 01 GP U/S

Why — evidence behind this answer

Runway 1

IMC_APCH LIFR conditions and 1 has an instrument approach +1.30
PRIOR runway length 5393 ft +0.03
WIND 2 kt TAILWIND, 3 kt left crosswind 2880 min ago -0.00

Runway 19

PRIOR runway length 5393 ft +0.03
WIND 2 kt headwind, 3 kt right crosswind 2880 min ago +0.00

Runway 28

PRIOR runway length 4000 ft -0.03
WIND 3 kt headwind, 2 kt left crosswind 2880 min ago +0.00

Runway 10

PRIOR runway length 4000 ft -0.03
WIND 3 kt TAILWIND, 2 kt right crosswind 2880 min ago -0.00

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	2880 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?

KGMU field & runways

Greenville Downtown, Greenville, South Carolina. Field elevation 1048 ft. Class D airspace. Towered. Magnetic variation 5.0°W on record, 7.0°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 0.045°/year west — about 1° every 22 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
1	1.2°	8.2°	matches	5,393 ft	ASPH	left	ILS
10	91.3°	98.4°	matches	4,000 ft	ASPH	left
19	181.2°	188.2°	matches	5,393 ft	ASPH	right
28	271.3°	278.4°	matches	4,000 ft	ASPH	right

Generated 11:19:18Z · auto-refreshes · JSON

KGMU ☆ Greenville Downtown