Alderney Airport

EGJA / ACI

Saint Anne, GG

Current TAF Forecast

Raw TAF:
TAF EGJA 100804Z 1009/1018 27016KT 9999 FEW010 SCT020 PROB30 TEMPO 1009/1016 7000 -SHRA BKN015 PROB40 TEMPO 1009/1012 4000 SHRA BKN012TCU

Detailed TAF Table

Parameter
Wed
09:00Z
+-1h
Wed
10:00Z
+0h
Wed
11:00Z
+1h
Wed
12:00Z
+2h
Wed
13:00Z
+3h
Wed
14:00Z
+4h
Wed
15:00Z
+5h
Wed
16:00Z
+6h
Wind Dir
270°
W
270°
W
270°
W
270°
W
270°
W
270°
W
270°
W
270°
W
Wind Speed
16 kt
16 kt
16 kt
16 kt
16 kt
16 kt
16 kt
16 kt
Visibility
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
FEW010
SCT020
FEW010
SCT020
FEW010
SCT020
FEW010
SCT020
FEW010
SCT020
FEW010
SCT020
FEW010
SCT020
FEW010
SCT020
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
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 occurrenceAGL: Above Ground Level

Forecast Periods

BASE
VFR
Wind
270° at 16 kt
Visibility
10+ km
Clouds
FEW010 SCT020
📖 Plain English Explanation:

This is the base forecast condition. Winds from the West (270°) at 16 kt. Visibility will be excellent at 10+ km. Few clouds at 1000 feet, Scattered clouds at 2000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

PROB30 TEMPO 09:00Z - 16:00Z
MVFR
Visibility
7 km
Weather
Light Showers Rain
Clouds
BKN015
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be good at 7 km. Weather conditions: Light Showers Rain. Broken clouds at 1500 feet. Marginal VFR conditions - some restrictions for visual flying.

PROB40 TEMPO 09:00Z - 12:00Z
IFR
Visibility
4 km
Weather
Showers Rain
Clouds
BKN012TCU
📖 Plain English Explanation:

There is a 40% probability of: Visibility will be moderate at 4 km. Weather conditions: Showers Rain. Broken clouds at 1200 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

📚 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.