KTTN TAF
Terminal aerodrome forecast for Trenton Mercer Airport (TTN · KTTN), Ewing Township, NJ. Issued 6 Aug 2026 2325Z, valid 0000Z to 0000Z, decoded period by period below.
All of Trenton Mercer Airport — runways, frequencies, charts and live weatherTAF issued 6 Aug 2026 2325Z
valid 0000Z to 0000ZTAF KTTN 062325Z 0700/0724 23005KT P6SM VCSH SCT050 FM070300 VRB03KT P6SM SCT080 TEMPO 0709/0711 5SM BR FM071400 24006KT P6SM FEW070 FM072200 24004KT P6SM VCTS SCT080CB
Times are UTC (Zulu), as they appear in the bulletin.
Period by period
| Period (UTC) | Change | Wind | Vis | Ceiling | Sky | Cat |
|---|---|---|---|---|---|---|
| 0000Z to 0300Z | Initial | 230° at 5 kt | 6+ SM | Clear | Scattered at 5,000 ft AGL | VFR |
| 0300Z to 1400Z | FM | Variable at 3 kt | 6+ SM | Clear | Scattered at 8,000 ft AGL | VFR |
| 0900Z to 1100Z | TEMPO | Calm | 5 SM | Clear | No cloud forecast | MVFR |
| 1400Z to 2200Z | FM | 240° at 6 kt | 6+ SM | Clear | Few at 7,000 ft AGL | VFR |
| 2200Z to 0000Z | FM | 240° at 4 kt | 6+ SM | Clear | Scattered at 8,000 ft AGL | VFR |
What the change groups mean
- FM
- From — a rapid, permanent change to the conditions that follow.
- TEMPO
- Temporary — expected for less than half the period, in spells under an hour.
What the categories mean
- VFR
- Visual flight rules — ceiling above 3,000 ft and visibility greater than 5 SM.
- MVFR
- Marginal VFR — ceiling 1,000 to 3,000 ft and/or visibility 3 to 5 SM.
Frequently asked
What is the current TAF for KTTN?
The forecast issued 6 Aug 2026 2325Z for Trenton Mercer Airport reads: TAF KTTN 062325Z 0700/0724 23005KT P6SM VCSH SCT050 FM070300 VRB03KT P6SM SCT080 TEMPO 0709/0711 5SM BR FM071400 24006KT P6SM FEW070 FM072200 24004KT P6SM VCTS SCT080CB
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.