Ponciano Arriaga International Airport

MMSP / SLP

San Luis Potosí, MX

Current TAF Forecast

Raw TAF:
TAF MMSP 041710Z 0418/0518 08010KT P6SM BKN025 TX27/0420Z TN17/0507Z TEMPO 0421/0501 P6SM VC SH BKN025CB FM050300 09004KT 6SM HZ SCT300 BECMG 0505/0506 4SM BR HZ BKN015 TEMPO 0509/0513 2SM BR HZ OVC010 FM051400 00000KT 4SM HZ BKN015 FM051500 30005KT 6SM HZ SCT020 BKN250 FM051700 06008KT P6SM BKN250

Detailed TAF Table

Parameter
Sat
22:00Z
+-1h
Sat
23:00Z
+0h
Sun
00:00Z
+1h
Sun
01:00Z
+2h
Sun
02:00Z
+3h
Sun
03:00Z
+4h
Sun
04:00Z
+5h
Sun
05:00Z
+6h
Sun
06:00Z
+7h
Sun
07:00Z
+8h
Sun
08:00Z
+9h
Sun
09:00Z
+10h
Sun
10:00Z
+11h
Sun
11:00Z
+12h
Sun
12:00Z
+13h
Sun
13:00Z
+14h
Sun
14:00Z
+15h
Sun
15:00Z
+16h
Sun
16:00Z
+17h
Wind Dir
80°
E
80°
E
80°
E
80°
E
80°
E
90°
E
90°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
Wind Speed
10 kt
10 kt
10 kt
10 kt
10 kt
4 kt
4 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
Visibility
>6SM
>6SM
>6SM
>6SM
>6SM
6SM
6SM
4SM
4SM
4SM
4SM
2SM
2SM
2SM
2SM
4SM
4SM
4SM
4SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Haze
HZ
Haze
HZ
Mist, Haze
BR HZ
Mist, Haze
BR HZ
Mist, Haze
BR HZ
Mist, Haze
BR HZ
Mist, Haze
BR HZ
Mist, Haze
BR HZ
Mist, Haze
BR HZ
Mist, Haze
BR HZ
Mist, Haze
BR HZ
Mist, Haze
BR HZ
Mist, Haze
BR HZ
Mist, Haze
BR HZ
Clouds
BKN025
BKN025
BKN025
BKN025
BKN025
SCT300
SCT300
BKN015
BKN015
BKN015
BKN015
OVC010
OVC010
OVC010
OVC010
BKN015
BKN015
BKN015
BKN015
Ceiling
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
Flight Rules MVFR MVFR MVFR MVFR MVFR VFR VFR MVFR MVFR MVFR MVFR IFR IFR IFR IFR MVFR MVFR MVFR MVFR
Day/Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:15Z
🌙
Night
🌅 05:15Z
🌅
Dawn
🌅 05:15Z
☀️
Day
🌅 05:15Z
☀️
Day
🌅 05:15Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:44Z
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
80° at 10 kt
Visibility
>6SM
Clouds
BKN025
📖 Plain English Explanation:

This is the base forecast condition. Winds from the East (80°) at 10 kt. Visibility will be excellent at more than 6SM. Broken clouds at 2500 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 21:00Z - 01:00Z
MVFR
Visibility
>6SM
Clouds
BKN025CB
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be excellent at more than 6SM. Broken clouds at 2500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM050300 03:00Z - 09:00Z
VFR
Wind
90° at 4 kt
Visibility
6SM
Weather
Haze
Clouds
SCT300
📖 Plain English Explanation:

Winds from the East (90°) at 4 kt. Visibility will be excellent at 6SM. Weather conditions: Haze. Scattered clouds at 30000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 05:00Z - 06:00Z
MVFR
Visibility
4SM
Weather
Mist, Haze
Clouds
BKN015
📖 Plain English Explanation:

Conditions will gradually change to become: Visibility will be good at 4SM. Weather conditions: Mist, Haze. Broken clouds at 1500 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 09:00Z - 13:00Z
IFR
Visibility
2SM
Weather
Mist, Haze
Clouds
OVC010
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be moderate at 2SM. Weather conditions: Mist, Haze. Overcast skies at 1000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM051400 14:00Z - 20:00Z
MVFR
Wind
0° at 0 kt
Visibility
4SM
Weather
Haze
Clouds
BKN015
📖 Plain English Explanation:

Winds from the North (0°) at 0 kt. Visibility will be good at 4SM. Weather conditions: Haze. Broken clouds at 1500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM051500 15:00Z - 21:00Z
VFR
Wind
300° at 5 kt
Visibility
6SM
Weather
Haze
Clouds
SCT020 BKN250
📖 Plain English Explanation:

Winds from the West-Northwest (300°) at 5 kt. Visibility will be excellent at 6SM. Weather conditions: Haze. Scattered clouds at 2000 feet, Broken clouds at 25000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM051700 17:00Z - 23:00Z
VFR
Wind
60° at 8 kt
Visibility
>6SM
Clouds
BKN250
📖 Plain English Explanation:

Winds from the East-Northeast (60°) at 8 kt. Visibility will be excellent at more than 6SM. Broken clouds at 25000 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.