Ponciano Arriaga International Airport

MMSP / SLP

San Luis Potosí, MX

Current TAF Forecast

Raw TAF:
TAF MMSP 172332Z 1800/1900 01005KT P6SM BKN030CB OVC080 TX20/1821Z TN06/1814Z FM180400 10005KT 5SM RA BKN020 BKN080 FM180600 00000KT 5SM HZ BKN015 OVC080 BECMG 1809/1810 3SM BR OVC010 TEMPO 1811/1815 1/4SM FG VV006 FM181600 08005KT 4SM HZ BKN015 FM181800 07005KT P6SM SCT020

Detailed TAF Table

Parameter
Sun
02:00Z
+-1h
Sun
03:00Z
+0h
Sun
04:00Z
+1h
Sun
05:00Z
+2h
Sun
06:00Z
+3h
Sun
07:00Z
+4h
Sun
08:00Z
+5h
Sun
09:00Z
+6h
Sun
10:00Z
+7h
Sun
11:00Z
+8h
Sun
12:00Z
+9h
Sun
13:00Z
+10h
Sun
14:00Z
+11h
Sun
15:00Z
+12h
Sun
16:00Z
+13h
Sun
17:00Z
+14h
Sun
18:00Z
+15h
Sun
19:00Z
+16h
Sun
20:00Z
+17h
Sun
21:00Z
+18h
Sun
22:00Z
+19h
Wind Dir
10°
N
10°
N
100°
E
100°
E
-- -- --
10°
N
10°
N
10°
N
10°
N
10°
N
10°
N
10°
N
10°
N
10°
N
10°
N
10°
N
10°
N
10°
N
10°
N
Wind Speed
5kt
5kt
5kt
5kt
-- -- --
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
Visibility
>6SM
>6SM
5SM
5SM
5SM
5SM
5SM
3SM
3SM
1/4SM
1/4SM
1/4SM
1/4SM
3SM
3SM
3SM
3SM
3SM
3SM
3SM
3SM
Weather
☀️ Clear
☀️ Clear
Rain
RA
Rain
RA
Haze
HZ
Haze
HZ
Haze
HZ
Mist
BR
Mist
BR
Fog
FG
Fog
FG
Fog
FG
Fog
FG
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Clouds
BKN030CB
OVC080
BKN030CB
OVC080
BKN020
BKN080
BKN020
BKN080
BKN015
OVC080
BKN015
OVC080
BKN015
OVC080
OVC010
OVC010
VV006
VV006
VV006
VV006
OVC010
OVC010
OVC010
OVC010
OVC010
OVC010
OVC010
OVC010
Ceiling
3000ft
AGL
3000ft
AGL
2000ft
AGL
2000ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1000ft
AGL
1000ft
AGL
600ft 🌫️
Indefinite
600ft 🌫️
Indefinite
600ft 🌫️
Indefinite
600ft 🌫️
Indefinite
1000ft
AGL
1000ft
AGL
1000ft
AGL
1000ft
AGL
1000ft
AGL
1000ft
AGL
1000ft
AGL
1000ft
AGL
Flight Rules MVFR MVFR MVFR MVFR MVFR MVFR MVFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR
Day/Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:40
🌙
Night
🌅 06:40
🌙
Night
🌅 06:40
☀️
Day
🌅 06:40
☀️
Day
🌅 06:40
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:19
☀️
Day
🌇 17:19
☀️
Day
🌇 17:19
🌙
Night
🌇 17:19
🌙
Night
🌇 17:19
🌙
Night
🌙
Night
🌙
Night
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
10° at 5 kt
Visibility
>6SM
Clouds
BKN030CB OVC080
📖 Plain English Explanation:

This is the base forecast condition. Winds from the North (10°) at 5kt. Visibility will be excellent at more than 6SM. Broken clouds at 3000 feet, Overcast skies at 8000 feet. Marginal VFR conditions - some restrictions for visual flying.

FM180400 2026-01-18 04:00:00 - 2026-01-18 10:00:00
MVFR
Wind
100° at 5 kt
Visibility
5SM
Weather
Rain
Clouds
BKN020 BKN080
📖 Plain English Explanation:

Winds from the East (100°) at 5kt. Visibility will be good at 5SM. Weather conditions: Rain. Broken clouds at 2000 feet, Broken clouds at 8000 feet. Marginal VFR conditions - some restrictions for visual flying.

FM180600 2026-01-18 06:00:00 - 2026-01-18 12:00:00
MVFR
Wind
0° at 0 kt
Visibility
5SM
Weather
Haze
Clouds
BKN015 OVC080
📖 Plain English Explanation:

Winds from the North (0°) at 0kt. Visibility will be good at 5SM. Weather conditions: Haze. Broken clouds at 1500 feet, Overcast skies at 8000 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 2026-01-18 09:00:00 - 2026-01-18 10:00:00
IFR
Visibility
3SM
Weather
Mist
Clouds
OVC010
📖 Plain English Explanation:

Conditions will gradually change to become: Visibility will be good at 3SM. Weather conditions: Mist. Overcast skies at 1000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

TEMPO 2026-01-18 11:00:00 - 2026-01-18 15:00:00
IFR
Visibility
1/4SM
Weather
Fog
Clouds
VV006
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be moderate at 1/4SM. Weather conditions: Fog. Vertical visibility at 600 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM181600 2026-01-18 16:00:00 - 2026-01-18 22:00:00
MVFR
Wind
80° at 5 kt
Visibility
4SM
Weather
Haze
Clouds
BKN015
📖 Plain English Explanation:

Winds from the East (80°) at 5kt. Visibility will be good at 4SM. Weather conditions: Haze. Broken clouds at 1500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM181800 2026-01-18 18:00:00 - 2026-01-19 00:00:00
VFR
Wind
70° at 5 kt
Visibility
>6SM
Clouds
SCT020
📖 Plain English Explanation:

Winds from the East-Northeast (70°) at 5kt. Visibility will be excellent at more than 6SM. Scattered clouds at 2000 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.