Sisimiut Airport

BGSS / JHS

Sisimiut, GL

Current TAF Forecast

Raw TAF:
TAF BGSS 031157Z 0312/0321 VRB05KT 9999 BKN030 TEMPO 0312/0314 SCT030 TEMPO 0314/0321 01015KT 3000 -SHSN DRSN BKN020

Detailed TAF Table

Parameter
Mon
15:00Z
+-1h
Mon
16:00Z
+0h
Mon
17:00Z
+1h
Mon
18:00Z
+2h
Mon
19:00Z
+3h
Wind Dir
VRB
VRB
VRB
VRB
VRB
Wind Speed
5kt
5kt
5kt
5kt
5kt
Visibility
10+ km
10+ km
10+ km
10+ km
10+ km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
BKN030
BKN030
BKN030
BKN030
BKN030
Ceiling
3000ft
AGL
3000ft
AGL
3000ft
AGL
3000ft
AGL
3000ft
AGL
Flight Rules VFR VFR VFR VFR VFR
Day/Night
☀️
Day
🌇 16:46
☀️
Day
🌇 16:46
🌇
Dusk
🌇 16:46
🌙
Night
🌇 16:46
🌙
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
VRB° at 5 kt
Visibility
10+ km
Clouds
BKN030
📖 Plain English Explanation:

This is the base forecast condition. Winds will be variable in direction at 5kt. Visibility will be excellent at 10+ km. Broken clouds at 3000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 2025-12-03 12:00:00 - 2025-12-03 14:00:00
VFR
Clouds
SCT030
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Scattered clouds at 3000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 2025-12-03 14:00:00 - 2025-11-03 21:00:00
IFR
Wind
10° at 15 kt
Visibility
3 km
Weather
Light Showers Snow, Drifting Snow
Clouds
BKN020
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Winds from the North (10°) at 15kt. Visibility will be moderate at 3 km. Weather conditions: Light Showers Snow, Drifting Snow. Broken clouds at 2000 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.