Purdue University Airport

KLAF / LAF

West Lafayette, US

Current TAF Forecast

Raw TAF:
TAF KLAF 042025Z 0420/0518 21006KT P6SM SCT035 BKN250 TEMPO 0421/0501 2SM -TSRA OVC035CB FM050100 VRB04KT P6SM SCT050 BKN100 FM050700 VRB03KT 4SM BR SCT010 OVC035 FM051300 34006KT P6SM SCT020 BKN035

Detailed TAF Table

Parameter
Sat
23:00Z
+-1h
Sun
00:00Z
+0h
Sun
01:00Z
+1h
Sun
02:00Z
+2h
Sun
03:00Z
+3h
Sun
04:00Z
+4h
Sun
05:00Z
+5h
Sun
06:00Z
+6h
Sun
07:00Z
+7h
Sun
08:00Z
+8h
Sun
09:00Z
+9h
Sun
10:00Z
+10h
Sun
11:00Z
+11h
Sun
12:00Z
+12h
Sun
13:00Z
+13h
Sun
14:00Z
+14h
Sun
15:00Z
+15h
Sun
16:00Z
+16h
Wind Dir
210°
SW
210°
SW
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
340°
N
340°
N
340°
N
340°
N
Wind Speed
6 kt
6 kt
4 kt
4 kt
4 kt
4 kt
4 kt
4 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
6 kt
6 kt
6 kt
6 kt
Visibility
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
4SM
4SM
4SM
4SM
4SM
4SM
>6SM
>6SM
>6SM
>6SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
SCT035
BKN250
SCT035
BKN250
SCT050
BKN100
SCT050
BKN100
SCT050
BKN100
SCT050
BKN100
SCT050
BKN100
SCT050
BKN100
SCT010
OVC035
SCT010
OVC035
SCT010
OVC035
SCT010
OVC035
SCT010
OVC035
SCT010
OVC035
SCT020
BKN035
SCT020
BKN035
SCT020
BKN035
SCT020
BKN035
Ceiling
25,000 ft
AGL
25,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR MVFR MVFR MVFR MVFR MVFR MVFR VFR VFR VFR VFR
Day/Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 04:44Z
🌙
Night
🌅 04:44Z
🌙
Night
🌅 04:44Z
☀️
Day
🌅 04:44Z
☀️
Day
🌅 04:44Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
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 occurrence • AGL: Above Ground Level

Forecast Periods

BASE
VFR
Wind
210° at 6 kt
Visibility
>6SM
Clouds
SCT035 BKN250
📖 Plain English Explanation:

This is the base forecast condition. Winds from the South-Southwest (210°) at 6 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 3500 feet, Broken clouds at 25000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 21:00Z - 01:00Z
IFR
Visibility
2SM
Weather
Light Thunderstorm Rain
Clouds
OVC035CB
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be moderate at 2SM. Weather conditions: Light Thunderstorm Rain. Overcast skies at 3500 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM050100 01:00Z - 07:00Z
VFR
Wind
VRB° at 4 kt
Visibility
>6SM
Clouds
SCT050 BKN100
📖 Plain English Explanation:

Winds will be variable in direction at 4 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 5000 feet, Broken clouds at 10000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM050700 07:00Z - 13:00Z
MVFR
Wind
VRB° at 3 kt
Visibility
4SM
Weather
Mist
Clouds
SCT010 OVC035
📖 Plain English Explanation:

Winds will be variable in direction at 3 kt. Visibility will be good at 4SM. Weather conditions: Mist. Scattered clouds at 1000 feet, Overcast skies at 3500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM051300 13:00Z - 19:00Z
VFR
Wind
340° at 6 kt
Visibility
>6SM
Clouds
SCT020 BKN035
📖 Plain English Explanation:

Winds from the North-Northwest (340°) at 6 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 2000 feet, Broken clouds at 3500 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.