Greenville Spartanburg International Airport

KGSP / GSP

Greer, US

Current TAF Forecast

Raw TAF:
TAF KGSP 041721Z 0418/0518 23008KT P6SM FEW200 FM051000 VRB03KT 6SM BR SCT005 BKN035 TEMPO 0510/0513 5SM BR BKN015 FM051500 23009KT P6SM SCT035

Detailed TAF Table

Parameter
Wed
23:00Z
+-1h
Thu
00:00Z
+0h
Thu
01:00Z
+1h
Thu
02:00Z
+2h
Thu
03:00Z
+3h
Thu
04:00Z
+4h
Thu
05:00Z
+5h
Thu
06:00Z
+6h
Thu
07:00Z
+7h
Thu
08:00Z
+8h
Thu
09:00Z
+9h
Thu
10:00Z
+10h
Thu
11:00Z
+11h
Thu
12:00Z
+12h
Thu
13:00Z
+13h
Thu
14:00Z
+14h
Thu
15:00Z
+15h
Thu
16:00Z
+16h
Wind Dir
230°
SW
230°
SW
230°
SW
230°
SW
230°
SW
230°
SW
230°
SW
230°
SW
230°
SW
230°
SW
230°
SW
230°
SW
230°
SW
230°
SW
VRB
VRB
230°
SW
230°
SW
Wind Speed
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
3 kt
3 kt
9 kt
9 kt
Visibility
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
5SM
5SM
5SM
6SM
6SM
>6SM
>6SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
☀️ Clear
☀️ Clear
Clouds
FEW200
FEW200
FEW200
FEW200
FEW200
FEW200
FEW200
FEW200
FEW200
FEW200
FEW200
BKN015
BKN015
BKN015
SCT005
BKN035
SCT005
BKN035
SCT035
SCT035
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR MVFR MVFR MVFR VFR VFR VFR VFR
Day/Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:20Z
🌙
Night
🌅 06:20Z
🌅
Dawn
🌅 06:20Z
☀️
Day
🌅 06:20Z
☀️
Day
🌅 06:20Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:39Z
☀️
Day
🌇 17:39Z
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
230° at 8 kt
Visibility
>6SM
Clouds
FEW200
📖 Plain English Explanation:

This is the base forecast condition. Winds from the Southwest (230°) at 8 kt. Visibility will be excellent at more than 6SM. Few clouds at 20000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM051000 10:00Z - 16:00Z
VFR
Wind
VRB° at 3 kt
Visibility
6SM
Weather
Mist
Clouds
SCT005 BKN035
📖 Plain English Explanation:

Winds will be variable in direction at 3 kt. Visibility will be excellent at 6SM. Weather conditions: Mist. Scattered clouds at 500 feet, Broken clouds at 3500 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 10:00Z - 13:00Z
MVFR
Visibility
5SM
Weather
Mist
Clouds
BKN015
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be good at 5SM. Weather conditions: Mist. Broken clouds at 1500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM051500 15:00Z - 21:00Z
VFR
Wind
230° at 9 kt
Visibility
>6SM
Clouds
SCT035
📖 Plain English Explanation:

Winds from the Southwest (230°) at 9 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 3500 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

📚 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.