KGON TAF

Terminal aerodrome forecast for Groton-New London (GON · KGON), Groton (New London), CT. Issued 21 Sep 2026 0250Z, valid 0300Z to 0000Z, decoded period by period below. · Open on the map

All of Groton-New London — runways, frequencies, charts and live weather

TAF issued 21 Sep 2026 0250Z

valid 0300Z to 0000Z

TAF KGON 210250Z 2103/2124 VRB04KT 4SM -DZ BR OVC008 FM210500 02008KT P6SM -DZ SCT008 OVC015 FM211100 01012KT P6SM OVC025 FM211400 02014G22KT P6SM BKN030 FM211600 02013G21KT P6SM BKN035 FM212100 04010G16KT P6SM SCT040 SCT250

Times are UTC (Zulu), as they appear in the bulletin.

Period by period

Period (UTC)	Change	Wind	Vis	Ceiling	Sky	Cat
0300Z to 0500Z	Initial	Variable at 4 kt	4 SM	800 ft OVC	Overcast at 800 ft AGL	IFR
0500Z to 1100Z	FM	020° at 8 kt	6+ SM	1,500 ft OVC	Scattered at 800 ft AGL, Overcast at 1,500 ft AGL	MVFR
1100Z to 1400Z	FM	010° at 12 kt	6+ SM	2,500 ft OVC	Overcast at 2,500 ft AGL	MVFR
1400Z to 1600Z	FM	020° at 14-22 kt	6+ SM	3,000 ft BKN	Broken at 3,000 ft AGL	MVFR
1600Z to 2100Z	FM	020° at 13-21 kt	6+ SM	3,500 ft BKN	Broken at 3,500 ft AGL	VFR
2100Z to 0000Z	FM	040° at 10-16 kt	6+ SM	Clear	Scattered at 4,000 ft AGL, Scattered at 25,000 ft AGL	VFR

What the change groups mean

FM: From — a rapid, permanent change to the conditions that follow.

What the categories mean

IFR: Instrument flight rules — ceiling 500 to 999 ft and/or visibility 1 to less than 3 SM.
MVFR: Marginal VFR — ceiling 1,000 to 3,000 ft and/or visibility 3 to 5 SM.
VFR: Visual flight rules — ceiling above 3,000 ft and visibility greater than 5 SM.

Frequently asked

What is the current TAF for KGON?

The forecast issued 21 Sep 2026 0250Z for Groton-New London reads: TAF KGON 210250Z 2103/2124 VRB04KT 4SM -DZ BR OVC008 FM210500 02008KT P6SM -DZ SCT008 OVC015 FM211100 01012KT P6SM OVC025 FM211400 02014G22KT P6SM BKN030 FM211600 02013G21KT P6SM BKN035 FM212100 04010G16KT P6SM SCT040 SCT250

How far ahead does a TAF forecast?

A TAF covers a 24-hour period at most airports and 30 hours at larger ones, issued four times a day at 0000Z, 0600Z, 1200Z and 1800Z. It describes conditions within roughly 5 statute miles of the airport, not the surrounding area.

What do FM, BECMG and TEMPO mean?

FM (from) marks a rapid, permanent change at the stated time. BECMG (becoming) marks a gradual change over the stated window. TEMPO marks conditions expected for less than half the period, in spells of under an hour each. PROB30 and PROB40 give the probability of the conditions that follow.

More about KGON

Forecasts from the US National Weather Service Aviation Weather Center. Times are UTC (Zulu). For planning and education only — always confirm with an official preflight briefing.

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