Ilopango International Airport

MSSS / ILS

San Salvador, SV

Current TAF Forecast

Raw TAF:
TAF MSSS 170925Z 1712/1812 34008KT CAVOK TX29/1719Z TN18/1712Z TEMPO 1716/1718 33010G20KT FM171800 VRB04KT 9999 FEW047 FM180000 35010G20KT CAVOK

Detailed TAF Table

Parameter
Sat
17:00Z
+-1h
Sat
18:00Z
+0h
Sat
19:00Z
+1h
Sat
20:00Z
+2h
Sat
21:00Z
+3h
Sat
22:00Z
+4h
Sat
23:00Z
+5h
Sun
00:00Z
+6h
Sun
01:00Z
+7h
Sun
02:00Z
+8h
Sun
03:00Z
+9h
Sun
04:00Z
+10h
Sun
05:00Z
+11h
Sun
06:00Z
+12h
Sun
07:00Z
+13h
Sun
08:00Z
+14h
Sun
09:00Z
+15h
Sun
10:00Z
+16h
Wind Dir
340°
N
VRB
VRB
VRB
VRB
VRB
VRB
350°
N
350°
N
350°
N
350°
N
350°
N
350°
N
340°
N
340°
N
340°
N
340°
N
340°
N
Wind Speed
8kt
4kt
4kt
4kt
4kt
4kt
4kt
10kt
G20kt
10kt
G20kt
10kt
G20kt
10kt
G20kt
10kt
G20kt
10kt
G20kt
8kt
8kt
8kt
8kt
8kt
Visibility
>10km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
>10km
>10km
>10km
>10km
>10km
>10km
>10km
>10km
>10km
>10km
>10km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
☀️ CLR
FEW047
FEW047
FEW047
FEW047
FEW047
FEW047
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
☀️
Day
🌇 17:34
🌇
Dusk
🌇 17:34
🌙
Night
🌇 17:34
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:25
🌙
Night
🌅 06:25
🌅
Dawn
🌅 06:25
☀️
Day
🌅 06:25
☀️
Day
🌅 06:25
☀️
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
340° at 8 kt
Visibility
>10km
📖 Plain English Explanation:

This is the base forecast condition. Winds from the North-Northwest (340°) at 8kt. Visibility will be excellent at more than 10km. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 2026-02-17 16:00:00 - 2026-01-17 18:00:00
VFR
Wind
330° at 10 kt
Gusts: 20 kt
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Winds from the North-Northwest (330°) at 10kt. Gusts up to 20kt are expected. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM171800 2026-01-17 18:00:00 - 2026-01-18 00:00:00
VFR
Wind
VRB° at 4 kt
Visibility
10+ km
Clouds
FEW047
📖 Plain English Explanation:

Winds will be variable in direction at 4kt. Visibility will be excellent at 10+ km. Few clouds at 4700 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM180000 2026-01-18 00:00:00 - 2026-01-18 06:00:00
VFR
Wind
350° at 10 kt
Gusts: 20 kt
Visibility
>10km
📖 Plain English Explanation:

Winds from the North (350°) at 10kt. Gusts up to 20kt are expected. Visibility will be excellent at more than 10km. 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.