KTTN TAF

Terminal aerodrome forecast for Trenton Mercer (TTN · KTTN), Trenton, NJ. Issued 5 Nov 2026 1133Z, valid 1200Z to 1200Z, decoded period by period below. · Open on the map

All of Trenton Mercer — runways, frequencies, charts and live weather

TAF issued 5 Nov 2026 1133Z

valid 1200Z to 1200Z

Chance of thunderstorms 0400Z to 0800Z on the 6th.

TAF KTTN 051133Z 0512/0612 20007G15KT P6SM VCSH BKN015 FM051500 20009G18KT P6SM VCSH OVC015 PROB30 0517/0521 4SM -SHRA OVC010 FM060000 18005KT 6SM -SHRA BKN025 FM060400 21005KT 5SM -SHRA OVC007 PROB30 0604/0608 3SM -TSRA BKN005CB

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

Period by period

Period (UTC)	Change	Wind	Vis	Ceiling	Sky	Cat
1200Z to 1500Z	Initial	200° at 7-15 kt	6+ SM	1,500 ft BKN	Broken at 1,500 ft AGL	MVFR

1500Z to 0000Z	FM	200° at 9-18 kt	6+ SM	1,500 ft OVC	Overcast at 1,500 ft AGL	MVFR

1700Z to 2100Z	PROB	No change	4 SM	1,000 ft OVC	Overcast at 1,000 ft AGL	MVFR

0000Z to 0400Z	FM	180° at 5 kt	6+ SM	2,500 ft BKN	Broken at 2,500 ft AGL	MVFR

0400Z to 1200Z	FM	210° at 5 kt	5 SM	700 ft OVC	Overcast at 700 ft AGL	IFR

0400Z to 0800Z	PROB	No change	3 SM	500 ft BKN	Broken at 500 ft AGL	IFR

What the change groups mean

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

What the categories mean

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

Frequently asked

What is the current TAF for KTTN?

The forecast issued 5 Nov 2026 1133Z for Trenton Mercer reads: TAF KTTN 051133Z 0512/0612 20007G15KT P6SM VCSH BKN015 FM051500 20009G18KT P6SM VCSH OVC015 PROB30 0517/0521 4SM -SHRA OVC010 FM060000 18005KT 6SM -SHRA BKN025 FM060400 21005KT 5SM -SHRA OVC007 PROB30 0604/0608 3SM -TSRA BKN005CB

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 KTTN

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.

Something here wrong or out of date? Report a data problem.