Stornoway Airport

EGPO / SYY

Stornoway, Western Isles, GB

Current TAF Forecast

Raw TAF:
TAF EGPO 221700Z 2218/2303 05010KT 9999 FEW030 BECMG 2222/2301 11007KT PROB30 2222/2224 7000 PROB40 2300/2303 4000 BR

Detailed TAF Table

Parameter
Wed
20:00Z
+-1h
Wed
21:00Z
+0h
Wed
22:00Z
+1h
Wed
23:00Z
+2h
Thu
00:00Z
+3h
Thu
01:00Z
+4h
Wind Dir
50°
NE
50°
NE
110°
E
110°
E
110°
E
110°
E
Wind Speed
10 kt
10 kt
7 kt
7 kt
7 kt
7 kt
Visibility
10+ km
10+ km
7 km
7 km
4 km
4 km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Mist
BR
40%
Mist
BR
40%
Clouds
FEW030
FEW030
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR MVFR MVFR IFR IFR
Day/Night
🌙
Night
🌇 18:50Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
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 occurrenceAGL: Above Ground Level

Forecast Periods

BASE
VFR
Wind
50° at 10 kt
Visibility
10+ km
Clouds
FEW030
📖 Plain English Explanation:

This is the base forecast condition. Winds from the Northeast (50°) at 10 kt. Visibility will be excellent at 10+ km. Few clouds at 3000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 22:00Z - 01:00Z
VFR
Wind
110° at 7 kt
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the East-Southeast (110°) at 7 kt. Conditions will be suitable for Visual Flight Rules (VFR) operations.

PROB30 22:00Z - 00:00Z
MVFR
Visibility
7 km
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be good at 7 km. Marginal VFR conditions - some restrictions for visual flying.

PROB40 00:00Z - 03:00Z
IFR
Visibility
4 km
Weather
Mist
📖 Plain English Explanation:

There is a 40% probability of: Visibility will be moderate at 4 km. Weather conditions: Mist. 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.