KGON Groton-New London

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.

certainty: — evidence: NONE Class D

Wind 340° true at 3 kt · VFR · 46 min old

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

5 28% 5000 ft · 2 kt head, 2 kt x-left

33 28% 4000 ft · 3 kt head, 1 kt x-right

23 24% 5000 ft · 2 kt TAIL, 2 kt x-right

15 20% 4000 ft · 3 kt TAIL, 1 kt x-left

Why — evidence behind this answer

Runway 5

WIND 2 kt headwind, 2 kt left crosswind 46 min ago +0.05
PRIOR runway length 5000 ft +0.02

Runway 33

WIND 3 kt headwind, 1 kt right crosswind 46 min ago +0.09
PRIOR runway length 4000 ft -0.02

Runway 23

WIND 2 kt TAILWIND, 2 kt right crosswind 46 min ago -0.14
PRIOR runway length 5000 ft +0.02

Runway 15

WIND 3 kt TAILWIND, 1 kt left crosswind 46 min ago -0.26
PRIOR runway length 4000 ft -0.02

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	46 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?

KGON field & runways

Groton-New London, Groton (New London), Connecticut. Field elevation 9 ft. Class D airspace. Towered. Magnetic variation 14.0°W on record, 13.4°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 0.057°/year east — about 1° every 18 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
15	135.2°	148.5°	matches	4,000 ft	ASPH	left
23	213.9°	227.3°	matches rule gives runway 22 in ~40 yr	5,000 ft	ASPH	left
33	315.2°	328.5°	matches	4,000 ft	ASPH	left
5	33.9°	47.3°	matches rule gives runway 4 in ~40 yr	5,000 ft	ASPH	left	ILS

Generated 08:42:21Z · auto-refreshes · JSON

KGON ☆ Groton-New London