Trenton Mercer Airport

KTTN / TTN

Ewing Township, US

Current TAF Forecast

Raw TAF:
TAF KTTN 050032Z 0501/0524 33012G25KT P6SM VCTS SCT050CB BKN120 TEMPO 0501/0504 2SM TSRA BKN025CB FM050500 VRB03KT 6SM BR BKN100 FM051200 18006KT P6SM SCT040 BKN200

Detailed TAF Table

Parameter
Sun
01:00Z
+-1h
Sun
02:00Z
+0h
Sun
03:00Z
+1h
Sun
04:00Z
+2h
Sun
05:00Z
+3h
Sun
06:00Z
+4h
Sun
07:00Z
+5h
Sun
08:00Z
+6h
Sun
09:00Z
+7h
Sun
10:00Z
+8h
Sun
11:00Z
+9h
Sun
12:00Z
+10h
Sun
13:00Z
+11h
Sun
14:00Z
+12h
Sun
15:00Z
+13h
Sun
16:00Z
+14h
Sun
17:00Z
+15h
Sun
18:00Z
+16h
Sun
19:00Z
+17h
Sun
20:00Z
+18h
Sun
21:00Z
+19h
Sun
22:00Z
+20h
Wind Dir
330°
NW
330°
NW
330°
NW
330°
NW
VRB
VRB
VRB
VRB
VRB
VRB
330°
NW
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
330°
NW
330°
NW
330°
NW
330°
NW
330°
NW
Wind Speed
12 kt
G25 kt
12 kt
G25 kt
12 kt
G25 kt
12 kt
G25 kt
3 kt
G25 kt
3 kt
G25 kt
3 kt
G25 kt
3 kt
G25 kt
3 kt
G25 kt
3 kt
G25 kt
12 kt
G25 kt
6 kt
G25 kt
6 kt
G25 kt
6 kt
G25 kt
6 kt
G25 kt
6 kt
G25 kt
6 kt
G25 kt
12 kt
G25 kt
12 kt
G25 kt
12 kt
G25 kt
12 kt
G25 kt
12 kt
G25 kt
Visibility
>6SM
>6SM
>6SM
>6SM
6SM
6SM
6SM
6SM
6SM
6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
SCT050CB
BKN120
SCT050CB
BKN120
SCT050CB
BKN120
SCT050CB
BKN120
BKN100
BKN100
BKN100
BKN100
BKN100
BKN100
SCT050CB
BKN120
SCT040
BKN200
SCT040
BKN200
SCT040
BKN200
SCT040
BKN200
SCT040
BKN200
SCT040
BKN200
SCT050CB
BKN120
SCT050CB
BKN120
SCT050CB
BKN120
SCT050CB
BKN120
SCT050CB
BKN120
Ceiling
12,000 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
12,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
Flight Rules MVFR MVFR MVFR MVFR VFR VFR VFR VFR VFR VFR MVFR VFR VFR VFR VFR VFR VFR MVFR MVFR MVFR MVFR MVFR
Day/Night
🌙
Night
🌙
Night
🌅 04:44Z
🌙
Night
🌅 04:44Z
🌙
Night
🌅 04:44Z
☀️
Day
🌅 04:44Z
☀️
Day
🌅 04:44Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 19:15Z
☀️
Day
🌇 19:15Z
☀️
Day
🌇 19:15Z
🌙
Night
🌇 19:15Z
🌙
Night
🌇 19:15Z
🌙
Night
Flight Rules
VFR: Visual Flight Rules
MVFR: Marginal VFR
IFR: Instrument Flight Rules
LIFR: Low IFR
Ceiling Colors
Red: < 500ft
Amber: 500-1000ft
Blue: 1000-3000ft
Green: > 3000ft
⛈️ TCU: Towering Cumulus
🌩️ CB: Cumulonimbus
+Nh: Hours from now • %: Probability of occurrence • AGL: Above Ground Level

Forecast Periods

BASE
MVFR
Wind
330° at 12 kt
Gusts: 25 kt
Visibility
>6SM
Clouds
SCT050CB BKN120
📖 Plain English Explanation:

This is the base forecast condition. Winds from the North-Northwest (330°) at 12 kt. Gusts up to 25 kt are expected. Visibility will be excellent at more than 6SM. Scattered clouds at 5000 feet, Broken clouds at 12000 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 01:00Z - 04:00Z
IFR
Visibility
2SM
Weather
Thunderstorm Rain
Clouds
BKN025CB
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be moderate at 2SM. Weather conditions: Thunderstorm Rain. Broken clouds at 2500 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM050500 05:00Z - 11:00Z
VFR
Wind
VRB° at 3 kt
Visibility
6SM
Weather
Mist
Clouds
BKN100
📖 Plain English Explanation:

Winds will be variable in direction at 3 kt. Visibility will be excellent at 6SM. Weather conditions: Mist. Broken clouds at 10000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM051200 12:00Z - 18:00Z
VFR
Wind
180° at 6 kt
Visibility
>6SM
Clouds
SCT040 BKN200
📖 Plain English Explanation:

Winds from the South (180°) at 6 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 4000 feet, Broken clouds at 20000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

📚 Understanding TAF Forecasts

Terminal Aerodrome Forecast (TAF) provides detailed weather forecasts specifically for aviation operations. Our system translates complex meteorological codes into plain English to help pilots of all experience levels understand forecasted conditions.

What TAF Includes:

  • • Wind direction, speed, and gusts
  • • Visibility in statute miles or kilometers
  • • Weather phenomena (rain, snow, fog, thunderstorms)
  • • Cloud coverage types and altitudes
  • • Forecast changes with timing
  • • Flight rules categories (VFR/IFR)

Change Indicators Explained:

  • • BASE - Main forecast conditions
  • • FM - Permanent change from specific time
  • • BECMG - Gradual change over 2-4 hours
  • • TEMPO - Temporary changes (less than 1 hour)
  • • PROB30/40 - 30% or 40% probability

🛩️ Flight Rules Categories

VFR

Visual Flight Rules

  • • Ceiling ≥ 3000 ft
  • • Visibility ≥ 5 miles
  • • Good for visual flying

MVFR

Marginal VFR

  • • Ceiling 1000-3000 ft
  • • Visibility 3-5 miles
  • • Caution for VFR

IFR

Instrument Flight Rules

  • • Ceiling 500-1000 ft
  • • Visibility 1-3 miles
  • • Instruments required

LIFR

Low IFR

  • • Ceiling < 500 ft
  • • Visibility < 1 mile
  • • Challenging conditions

💡 TAF Reading Tips

For Student Pilots:

  • • Focus on the plain English explanations above
  • • Pay attention to flight rules categories
  • • Look for wind direction relative to runway headings
  • • Check for temporary conditions (TEMPO)

For Experienced Pilots:

  • • Cross-reference with raw TAF for precise timing
  • • Consider probability forecasts for alternate planning
  • • Monitor BECMG periods for gradual changes
  • • Always check current METAR vs TAF forecast

Important: TAF forecasts should always be supplemented with current METAR observations, PIREPs, and other weather information for complete situational awareness. Weather can change rapidly, and forecasts have inherent limitations.