Marechal Cunha Machado International Airport

SBSL / SLZ

São Luís, BR

Current TAF Forecast

Raw TAF:
TAF SBSL 041631Z 0418/0518 07007KT 8000 SCT023 TX30/0418Z TN25/0509Z TEMPO 0419/0423 01010KT 6000 TS BKN023 FEW030CB TEMPO 0506/0511 6000 BKN016 BECMG 0511/0514 07012KT BKN023 FEW030TCU RMK PHC

Detailed TAF Table

Parameter
Sat
18:00Z
+-1h
Sat
19:00Z
+0h
Sat
20:00Z
+1h
Sat
21:00Z
+2h
Sat
22:00Z
+3h
Sat
23:00Z
+4h
Sun
00:00Z
+5h
Sun
01:00Z
+6h
Sun
02:00Z
+7h
Sun
03:00Z
+8h
Sun
04:00Z
+9h
Sun
05:00Z
+10h
Sun
06:00Z
+11h
Sun
07:00Z
+12h
Sun
08:00Z
+13h
Sun
09:00Z
+14h
Sun
10:00Z
+15h
Sun
11:00Z
+16h
Sun
12:00Z
+17h
Sun
13:00Z
+18h
Sun
14:00Z
+19h
Sun
15:00Z
+20h
Sun
16:00Z
+21h
Wind Dir
70°
E
10°
N
10°
N
10°
N
10°
N
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
Wind Speed
7 kt
10 kt
10 kt
10 kt
10 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
12 kt
12 kt
12 kt
12 kt
12 kt
12 kt
12 kt
12 kt
12 kt
12 kt
12 kt
Visibility
8 km
6 km
6 km
6 km
6 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
6 km
6 km
6 km
6 km
6 km
8 km
8 km
8 km
8 km
8 km
8 km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
SCT023
BKN023
FEW030CB
BKN023
FEW030CB
BKN023
FEW030CB
BKN023
FEW030CB
SCT023
SCT023
SCT023
SCT023
SCT023
SCT023
SCT023
BKN016
BKN016
BKN016
BKN016
BKN016
BKN023
FEW030TCU
BKN023
FEW030TCU
BKN023
FEW030TCU
BKN023
FEW030TCU
BKN023
FEW030TCU
BKN023
FEW030TCU
Ceiling
🌤️ Unlimited
2,300 ft
AGL
2,300 ft
AGL
2,300 ft
AGL
2,300 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
2,300 ft
AGL
2,300 ft
AGL
2,300 ft
AGL
2,300 ft
AGL
2,300 ft
AGL
2,300 ft
AGL
Flight Rules MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR
Day/Night
🌇
Dusk
🌇 17:54Z
🌙
Night
🌇 17:54Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:05Z
🌙
Night
🌅 06:05Z
🌅
Dawn
🌅 06:05Z
☀️
Day
🌅 06:05Z
☀️
Day
🌅 06:05Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:54Z
☀️
Day
🌇 17:54Z
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
MVFR
Wind
70° at 7 kt
Visibility
8 km
Clouds
SCT023
📖 Plain English Explanation:

This is the base forecast condition. Winds from the East-Northeast (70°) at 7 kt. Visibility will be good at 8 km. Scattered clouds at 2300 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 19:00Z - 23:00Z
MVFR
Wind
10° at 10 kt
Visibility
6 km
Clouds
BKN023 FEW030CB
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Winds from the North (10°) at 10 kt. Visibility will be good at 6 km. Broken clouds at 2300 feet, Few clouds at 3000 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 06:00Z - 11:00Z
MVFR
Visibility
6 km
Clouds
BKN016
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be good at 6 km. Broken clouds at 1600 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 11:00Z - 14:00Z
MVFR
Wind
70° at 12 kt
Clouds
BKN023 FEW030TCU
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the East-Northeast (70°) at 12 kt. Broken clouds at 2300 feet, Few clouds at 3000 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.