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. Weather observation is 3972 minutes old — treat with caution.

certainty: — evidence: NONE Class D

Wind 170° true at 8 kt · VFR · 3972 min old

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

23 26% 5000 ft · 6 kt head, 6 kt x-left

5 26% 5000 ft · 6 kt TAIL, 6 kt x-right

15 24% 4000 ft · 7 kt head, 5 kt x-right

33 24% 4000 ft · 7 kt TAIL, 5 kt x-left

Active NOTAMs affecting runways

LIGHTING RWY 15 until 10-28 23:59Z

RWY 15 PAPI U/S

Why — evidence behind this answer

Runway 23

PRIOR runway length 5000 ft +0.02
WIND 6 kt headwind, 6 kt left crosswind 3972 min ago +0.00

Runway 5

PRIOR runway length 5000 ft +0.02
WIND 6 kt TAILWIND, 6 kt right crosswind 3972 min ago -0.00

Runway 15

PRIOR runway length 4000 ft -0.02
WIND 7 kt headwind, 5 kt right crosswind 3972 min ago +0.00

Runway 33

PRIOR runway length 4000 ft -0.02
WIND 7 kt TAILWIND, 5 kt left crosswind 3972 min ago -0.00

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	3972 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 13:07:38Z · auto-refreshes · JSON

KGON ☆ Groton-New London