Stornoway Airport

EGPO / SYY

Stornoway, Western Isles, GB

Current TAF Forecast

Raw TAF:
TAF EGPO 040155Z 0403/0412 19015KT 9999 SCT030 PROB40 TEMPO 0403/0412 20018G28KT TEMPO 0408/0412 BKN012 PROB40 TEMPO 0409/0412 BKN006

Detailed TAF Table

Parameter
Wed
04:00Z
+-1h
Wed
05:00Z
+0h
Wed
06:00Z
+1h
Wed
07:00Z
+2h
Wed
08:00Z
+3h
Wed
09:00Z
+4h
Wed
10:00Z
+5h
Wind Dir
190°
S
190°
S
190°
S
190°
S
190°
S
190°
S
190°
S
Wind Speed
15 kt
15 kt
15 kt
15 kt
15 kt
15 kt
15 kt
Visibility
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
SCT030
SCT030
SCT030
SCT030
BKN012
BKN006
BKN006
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
1,200 ft
AGL
600 ft
AGL
600 ft
AGL
Flight Rules VFR VFR VFR VFR MVFR IFR IFR
Day/Night
🌙
Night
🌅 06:32Z
🌙
Night
🌅 06:32Z
🌙
Night
🌅 06:32Z
☀️
Day
🌅 06:32Z
☀️
Day
🌅 06:32Z
☀️
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
190° at 15 kt
Visibility
10+ km
Clouds
SCT030
📖 Plain English Explanation:

This is the base forecast condition. Winds from the South (190°) at 15 kt. Visibility will be excellent at 10+ km. Scattered clouds at 3000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

PROB40 TEMPO 03:00Z - 12:00Z
VFR
Wind
200° at 18 kt
Gusts: 28 kt
📖 Plain English Explanation:

There is a 40% probability of: Winds from the South-Southwest (200°) at 18 kt. Gusts up to 28 kt are expected. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 08:00Z - 12:00Z
MVFR
Clouds
BKN012
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Broken clouds at 1200 feet. Marginal VFR conditions - some restrictions for visual flying.

PROB40 TEMPO 09:00Z - 12:00Z
IFR
Clouds
BKN006
📖 Plain English Explanation:

There is a 40% probability of: Broken clouds at 600 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.