Langley Air Force Base

KLFI / LFI

Hampton, US

Current TAF Forecast

Raw TAF:
TAF KLFI 041200Z 0412/0518 26009KT 9999 SCT250 QNH2988INS BECMG 0423/0424 20010G15KT 9999 SCT170 QNH2989INS TEMPO 0500/0504 8000 SHRA BKN040 OVC170 BECMG 0509/0510 21009KT 9999 SKC QNH2990INS TX38/0419Z TN26/0511Z

Detailed TAF Table

Parameter
Sat
14:00Z
+-1h
Sat
15:00Z
+0h
Sat
16:00Z
+1h
Sat
17:00Z
+2h
Sat
18:00Z
+3h
Sat
19:00Z
+4h
Sat
20:00Z
+5h
Sat
21:00Z
+6h
Sat
22:00Z
+7h
Sat
23:00Z
+8h
Sun
00:00Z
+9h
Sun
01:00Z
+10h
Sun
02:00Z
+11h
Sun
03:00Z
+12h
Sun
04:00Z
+13h
Sun
05:00Z
+14h
Sun
06:00Z
+15h
Sun
07:00Z
+16h
Sun
08:00Z
+17h
Sun
09:00Z
+18h
Sun
10:00Z
+19h
Sun
11:00Z
+20h
Sun
12:00Z
+21h
Sun
13:00Z
+22h
Sun
14:00Z
+23h
Sun
15:00Z
+24h
Sun
16:00Z
+25h
Wind Dir
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
200°
S
210°
SW
210°
SW
210°
SW
210°
SW
200°
S
200°
S
200°
S
200°
S
200°
S
210°
SW
210°
SW
210°
SW
210°
SW
210°
SW
210°
SW
210°
SW
210°
SW
Wind Speed
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
10 kt
G15 kt
9 kt
G15 kt
9 kt
G15 kt
9 kt
G15 kt
9 kt
G15 kt
10 kt
G15 kt
10 kt
G15 kt
10 kt
G15 kt
10 kt
G15 kt
10 kt
G15 kt
9 kt
G15 kt
9 kt
G15 kt
9 kt
G15 kt
9 kt
G15 kt
9 kt
G15 kt
9 kt
G15 kt
9 kt
G15 kt
9 kt
G15 kt
Visibility
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
8 km
8 km
8 km
8 km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Showers Rain
SHRA
Showers Rain
SHRA
Showers Rain
SHRA
Showers Rain
SHRA
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
SCT250
SCT250
SCT250
SCT250
SCT250
SCT250
SCT250
SCT250
SCT250
SCT170
BKN040
OVC170
BKN040
OVC170
BKN040
OVC170
BKN040
OVC170
SCT170
SCT170
SCT170
SCT170
SCT170
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
4,000 ft
AGL
4,000 ft
AGL
4,000 ft
AGL
4,000 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR MVFR MVFR MVFR MVFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 19:10Z
☀️
Day
🌇 19:10Z
☀️
Day
🌇 19:10Z
🌙
Night
🌇 19:10Z
🌙
Night
🌇 19:10Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 04:49Z
🌙
Night
🌅 04:49Z
🌙
Night
🌅 04:49Z
☀️
Day
🌅 04:49Z
☀️
Day
🌅 04:49Z
☀️
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 occurrenceAGL: Above Ground Level

Forecast Periods

BASE
VFR
Wind
260° at 9 kt
Visibility
10+ km
Clouds
SCT250
📖 Plain English Explanation:

This is the base forecast condition. Winds from the West (260°) at 9 kt. Visibility will be excellent at 10+ km. Scattered clouds at 25000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 23:00Z - 00:00Z
VFR
Wind
200° at 10 kt
Gusts: 15 kt
Visibility
10+ km
Clouds
SCT170
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the South-Southwest (200°) at 10 kt. Gusts up to 15 kt are expected. Visibility will be excellent at 10+ km. Scattered clouds at 17000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 00:00Z - 04:00Z
MVFR
Visibility
8 km
Weather
Showers Rain
Clouds
BKN040 OVC170
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be good at 8 km. Weather conditions: Showers Rain. Broken clouds at 4000 feet, Overcast skies at 17000 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 09:00Z - 10:00Z
VFR
Wind
210° at 9 kt
Visibility
10+ km
Clouds
CLR
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the South-Southwest (210°) at 9 kt. Visibility will be excellent at 10+ km. Skies will be clear. 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.