Airports · Trenton Mercer Airport · flight planning · Mon 1:11 am EDT (05:11 UTC)

Flight planning: Trenton Mercer Airport TTN / KTTN

What a pilot looks at before a flight from or to Trenton Mercer Airport in Trenton, New Jersey, in plain English: right now IFR: instrument conditions, Wind from the north (010°) at 9 knots. The warnings, reports and winds below come from the government's aviation weather service and the restrictions from the FAA, refreshed every few minutes. For planning, not a briefing: the legal preflight briefing comes from Flight Service (1-800-WX-BRIEF) or the FAA's own tools.

Warnings in force SIGMETs and AIRMETs whose area covers this field

SIGMET E19E: thunderstorms (a convective SIGMET) up to 43,000 ft, moving from the southwest at 20 knots, until 2:55 am EDT (06:55 UTC).

as issued

WSUS31 KKCI 120455
MKCE WST 120455
CONVECTIVE SIGMET 19E
VALID UNTIL 0655Z
CT NY NJ PA DE MD VA DC WV AND DE NJ NY MD CT VA CSTL WTRS
FROM 20NNW HTO-70SSE HTO-90SE SIE-20WNW LYH-40ESE AIR-20NNW HTO
AREA EMBD TS MOV FROM 24020KT. TOPS TO FL430.

AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist).
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft.

A SIGMET warns of weather hazardous to all aircraft (thunderstorms, severe turbulence or icing, volcanic ash); an AIRMET of weather that matters to small aircraft and to flying without instruments (moderate turbulence or icing, low cloud, strong surface wind, mountains hidden in cloud). An area is counted when it covers this field's position.

Pilot reports within 100 nautical miles, last three hours, nearest first

A319 at 23,000 ft, 23 nm southeast, 11:21 pm EDT (03:21 UTC): moderate turbulence.
as filed, and in English
```
MJX UA /OV CYN345010/TM 0321/FL230/TP A319/TB MOD
```
Report
a routine report filed through MJX
Where
10 nm north (345°) of CYN
Time
03:21 UTC
Height
at 23,000 ft
Aircraft
A319
Turbulence
moderate
A321 at 700 ft, 50 nm northeast, 10:46 pm EDT (02:46 UTC): overcast above 700 ft.
as filed, and in English
```
JFK UA /OV KJFK225002/TM 0246/FL007/TP A321/SK OVC007
```
Report
a routine report filed through JFK
Where
2 nm southwest (225°) of KJFK
Time
02:46 UTC
Height
at 700 ft
Aircraft
A321
Sky
overcast from 700 ft
PC12 at 1,000 ft, 53 nm west, 10:28 pm EDT (02:28 UTC): overcast above 1,000 ft.
as filed, and in English
```
RDG UA /OV 2 SOUTH RDG/TM 0228/FL010/TP PC12/SK OVC010
```
Report
a routine report filed through RDG
Where
2 south rdg
Time
02:28 UTC
Height
at 1,000 ft
Aircraft
PC12
Sky
overcast from 1,000 ft
E175 descending, 53 nm northeast, 10:19 pm EDT (02:19 UTC): remarks: cloud bases 70,000 ft ils runway 4.
as filed, and in English
```
LGA UA /OV LGA/TM 0219/FLDURD/TP E175/RM CLOUD BASES 700 ILS RWY 4
```
Report
a routine report filed through LGA
Where
over LGA
Time
02:19 UTC
Height
during the descent
Aircraft
E175
Remarks
cloud bases 70,000 ft ils runway 4
GA6C at 1,100 ft, 69 nm northeast, 10:31 pm EDT (02:31 UTC): overcast above 1,100 ft, remarks: low-level wind shear + 5 knots runway 34.
as filed, and in English
```
HPN UA /OV HPN/TM 0231/FL011/TP GA6C/SK OVC011/RM LLWS +/- 5 KNOTS RWY34
```
Report
a routine report filed through HPN
Where
over HPN
Time
02:31 UTC
Height
at 1,100 ft
Aircraft
GA6C
Sky
overcast from 1,100 ft
Remarks
low-level wind shear + 5 knots runway 34
GA6C descending, 77 nm north, 12:32 am EDT (04:32 UTC): overcast above 1,000 ft, remarks: bases OVC010.
as filed, and in English
```
SWF UA /OV SWF 270005/TM 0432/FLDURD/TP GA6C/SK OVC010/RM BASES OVC010
```
Report
a routine report filed through SWF
Where
5 nm west (270°) of SWF
Time
04:32 UTC
Height
during the descent
Aircraft
GA6C
Sky
overcast from 1,000 ft
Remarks
bases OVC010
A320 descending, 84 nm east, 10:45 pm EDT (02:45 UTC): remarks: final runway 24.
as filed, and in English
```
ISP UA /OV ISP/TM 0245/FLDURD/TP A320/SK BCN007/RM FINAL RY24
```
Report
a routine report filed through ISP
Where
over ISP
Time
02:45 UTC
Height
during the descent
Aircraft
A320
Sky
BCN007
Remarks
final runway 24

What pilots in the air told air traffic control or Flight Service: turbulence, icing, cloud tops and bases, temperature, wind, and whatever they remarked on (wind shear on final, a smooth ride). An urgent report is one of severe turbulence or icing, wind shear, or similar. Open "as filed, and in English" for the coded report and its translation line by line.

Winds and temperatures aloft forecast point ACY, 50 nm south of the field · for use 02:00–09:00 UTC

Height	Wind from	Speed	Temperature
3,000 ft	220° (southwest)	19 knots
6,000 ft	220° (southwest)	18 knots	14 °C
9,000 ft	210° (southwest)	36 knots	9 °C
12,000 ft	210° (southwest)	35 knots	5 °C
18,000 ft	220° (southwest)	36 knots	-8 °C
24,000 ft	240° (southwest)	49 knots	-21 °C
30,000 ft	220° (southwest)	90 knots	-31 °C
34,000 ft	230° (southwest)	103 knots	-40 °C
39,000 ft	230° (southwest)	81 knots	-50 °C

Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 UTC; temperatures above 24,000 ft are below zero. Heights are above sea level; the lowest rows are left out where the ground is already that high.

Temporary flight restrictions within 50 nautical miles, from the FAA's list

5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 47 nm northeast · security · until 20 October · ZNY

Each restriction opens the FAA's own page with the exact area, heights and times. Ordinary notices to air missions (a closed runway, lights out, a crane) are not shown here: the FAA's notice search is not open to sites like this one at this time, and the application for the FAA's data feed is in hand.

Radar and forecast charts government pictures, the latest each time the page loads

Radar now: KDIX (27 nautical miles away) · loop National Weather Service

Radar, the Northeast · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

The radar pictures come from the National Weather Service (the nearest radar, then the region); the surface analysis and the 12- and 24-hour forecast charts from the Weather Prediction Center. They are public-domain government images shown as they are published.

Sources: the Aviation Weather Center's data service (SIGMETs, AIRMETs, graphical AIRMETs, pilot reports, winds and temperatures aloft), the National Weather Service radar, the Weather Prediction Center's charts, and the FAA's temporary flight restriction list and shapes. Fetched when the page is viewed and kept a few minutes. Back to Trenton Mercer Airport, where the current observation and the forecast for the field are.