Mariehamn Airport

EFMA / MHQ

Mariehamn, FI

Current TAF Forecast

Raw TAF:
TAF EFMA 141729Z 1418/1503 13010KT CAVOK TEMPO 1419/1423 SHRA FEW040CB

Detailed TAF Table

Parameter
Thu
18:00Z
+-1h
Thu
19:00Z
+0h
Thu
20:00Z
+1h
Thu
21:00Z
+2h
Thu
22:00Z
+3h
Thu
23:00Z
+4h
Fri
00:00Z
+5h
Fri
01:00Z
+6h
Wind Dir
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
Wind Speed
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
Visibility
>10km
>10km
>10km
>10km
>10km
>10km
>10km
>10km
Weather
☀️ Clear
Showers Rain
SHRA
Showers Rain
SHRA
Showers Rain
SHRA
Showers Rain
SHRA
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
☀️ CLR
FEW040CB
FEW040CB
FEW040CB
FEW040CB
☀️ CLR
☀️ CLR
☀️ CLR
Ceiling
🌤️ Unlimited
4,000 ft 🌩️
CB Base
4,000 ft 🌩️
CB Base
4,000 ft 🌩️
CB Base
4,000 ft 🌩️
CB Base
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR MVFR MVFR MVFR MVFR VFR VFR VFR
Day/Night
☀️
Day
🌇 19:21Z
☀️
Day
🌇 19:21Z
🌙
Night
🌇 19:21Z
🌙
Night
🌇 19:21Z
🌙
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
130° at 10 kt
Visibility
>10km
📖 Plain English Explanation:

This is the base forecast condition. Winds from the Southeast (130°) at 10 kt. Visibility will be excellent at more than 10km. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 19:00Z - 23:00Z
MVFR
Weather
Showers Rain
Clouds
FEW040CB
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Weather conditions: Showers Rain. Few clouds at 4000 feet. Marginal VFR conditions - some restrictions for visual flying.

📚 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.