Marechal Cunha Machado International Airport

SBSL / SLZ

São Luís, BR

Current TAF Forecast

Raw TAF:
TAF SBSL 150440Z 1506/1606 05005KT 9999 SCT020 TN24/1509Z TX30/1515Z TEMPO 1506/1510 29005KT 4000 BR BKN010 BECMG 1512/1515 02010KT BKN020 FEW025TCU TEMPO 1516/1522 4000 TSRA BKN015 FEW025CB BECMG 1522/1524 SCT025 BECMG 1603/1605 07005KT RMK PFV

Detailed TAF Table

Parameter
Fri
10:00Z
+-1h
Fri
11:00Z
+0h
Fri
12:00Z
+1h
Fri
13:00Z
+2h
Fri
14:00Z
+3h
Fri
15:00Z
+4h
Fri
16:00Z
+5h
Fri
17:00Z
+6h
Fri
18:00Z
+7h
Fri
19:00Z
+8h
Fri
20:00Z
+9h
Fri
21:00Z
+10h
Fri
22:00Z
+11h
Fri
23:00Z
+12h
Sat
00:00Z
+13h
Sat
01:00Z
+14h
Sat
02:00Z
+15h
Sat
03:00Z
+16h
Sat
04:00Z
+17h
Wind Dir
50°
NE
50°
NE
20°
N
20°
N
20°
N
20°
N
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
20°
N
20°
N
20°
N
20°
N
20°
N
70°
E
70°
E
Wind Speed
5 kt
5 kt
10 kt
10 kt
10 kt
10 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
10 kt
10 kt
10 kt
10 kt
10 kt
5 kt
5 kt
Visibility
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
4 km
4 km
4 km
4 km
4 km
4 km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Thunderstorm Rain
TSRA
Thunderstorm Rain
TSRA
Thunderstorm Rain
TSRA
Thunderstorm Rain
TSRA
Thunderstorm Rain
TSRA
Thunderstorm Rain
TSRA
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
SCT020
SCT020
BKN020
FEW025TCU
BKN020
FEW025TCU
BKN020
FEW025TCU
BKN020
FEW025TCU
BKN015
FEW025CB
BKN015
FEW025CB
BKN015
FEW025CB
BKN015
FEW025CB
BKN015
FEW025CB
BKN015
FEW025CB
SCT025
SCT025
SCT025
SCT025
SCT025
☀️ CLR
☀️ CLR
Ceiling
🌤️ Unlimited
🌤️ Unlimited
2,000 ft
AGL
2,000 ft
AGL
2,000 ft
AGL
2,000 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR MVFR MVFR MVFR MVFR IFR IFR IFR IFR IFR IFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:55Z
☀️
Day
🌇 17:55Z
☀️
Day
🌇 17:55Z
🌇
Dusk
🌇 17:55Z
🌙
Night
🌇 17:55Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:04Z
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 5 kt
Visibility
10+ km
Clouds
SCT020
📖 Plain English Explanation:

This is the base forecast condition. Winds from the Northeast (50°) at 5 kt. Visibility will be excellent at 10+ km. Scattered clouds at 2000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 06:00Z - 10:00Z
IFR
Wind
290° at 5 kt
Visibility
4 km
Weather
Mist
Clouds
BKN010
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Winds from the West-Northwest (290°) at 5 kt. Visibility will be moderate at 4 km. Weather conditions: Mist. Broken clouds at 1000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 12:00Z - 15:00Z
MVFR
Wind
20° at 10 kt
Clouds
BKN020 FEW025TCU
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the North-Northeast (20°) at 10 kt. Broken clouds at 2000 feet, Few clouds at 2500 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 16:00Z - 22:00Z
IFR
Visibility
4 km
Weather
Thunderstorm Rain
Clouds
BKN015 FEW025CB
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be moderate at 4 km. Weather conditions: Thunderstorm Rain. Broken clouds at 1500 feet, Few clouds at 2500 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 22:00Z - 00:00Z
VFR
Clouds
SCT025
📖 Plain English Explanation:

Conditions will gradually change to become: Scattered clouds at 2500 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 03:00Z - 05:00Z
VFR
Wind
70° at 5 kt
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the East-Northeast (70°) at 5 kt. 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.