Whitegrass Airport

NVVW / TAH

Tanna Island, VU

Current TAF Forecast

Raw TAF:
TAF NVVW 091700Z 0918/1018 12015KT 9999 SCT020 PROB40 INTER 0918/0924 9000 -SHRA BKN018 PROB40 INTER 1000/1006 9000 -SHRA BKN018 BECMG 0918/0920 13010G20KT

Detailed TAF Table

Parameter
Tue
21:00Z
+-1h
Tue
22:00Z
+0h
Tue
23:00Z
+1h
Wed
00:00Z
+2h
Wed
01:00Z
+3h
Wed
02:00Z
+4h
Wed
03:00Z
+5h
Wed
04:00Z
+6h
Wed
05:00Z
+7h
Wed
06:00Z
+8h
Wed
07:00Z
+9h
Wed
08:00Z
+10h
Wed
09:00Z
+11h
Wed
10:00Z
+12h
Wed
11:00Z
+13h
Wed
12:00Z
+14h
Wed
13:00Z
+15h
Wed
14:00Z
+16h
Wed
15:00Z
+17h
Wed
16:00Z
+18h
Wind Dir
120°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
120°
SE
120°
SE
120°
SE
120°
SE
120°
SE
120°
SE
120°
SE
120°
SE
120°
SE
120°
SE
120°
SE
120°
SE
120°
SE
Wind Speed
15 kt
10 kt
G20 kt
10 kt
G20 kt
10 kt
G20 kt
10 kt
G20 kt
10 kt
G20 kt
10 kt
G20 kt
15 kt
15 kt
15 kt
15 kt
15 kt
15 kt
15 kt
15 kt
15 kt
15 kt
15 kt
15 kt
15 kt
Visibility
10+ km
9 km
9 km
9 km
9 km
9 km
9 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
Light Showers Rain
-SHRA
40%
Light Showers Rain
-SHRA
40%
Light Showers Rain
-SHRA
40%
Light Showers Rain
-SHRA
40%
Light Showers Rain
-SHRA
40%
Light Showers Rain
-SHRA
40%
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
SCT020
BKN018
BKN018
BKN018
BKN018
BKN018
BKN018
SCT020
SCT020
SCT020
SCT020
SCT020
SCT020
SCT020
SCT020
SCT020
SCT020
SCT020
SCT020
SCT020
Ceiling
🌤️ Unlimited
1,800 ft
AGL
1,800 ft
AGL
1,800 ft
AGL
1,800 ft
AGL
1,800 ft
AGL
1,800 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR MVFR MVFR MVFR MVFR MVFR MVFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:39Z
🌙
Night
🌅 06:39Z
🌙
Night
🌅 06:39Z
☀️
Day
🌅 06:39Z
☀️
Day
🌅 06:39Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:20Z
☀️
Day
🌇 17:20Z
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
120° at 15 kt
Visibility
10+ km
Clouds
SCT020
📖 Plain English Explanation:

This is the base forecast condition. Winds from the East-Southeast (120°) at 15 kt. Visibility will be excellent at 10+ km. Scattered clouds at 2000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

PROB40
MVFR
Visibility
9 km
Weather
Light Showers Rain
Clouds
BKN018
📖 Plain English Explanation:

There is a 40% probability of: Visibility will be good at 9 km. Weather conditions: Light Showers Rain. Broken clouds at 1800 feet. Marginal VFR conditions - some restrictions for visual flying.

PROB40
MVFR
Visibility
9 km
Weather
Light Showers Rain
Clouds
BKN018
📖 Plain English Explanation:

There is a 40% probability of: Visibility will be good at 9 km. Weather conditions: Light Showers Rain. Broken clouds at 1800 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 18:00Z - 20:00Z
VFR
Wind
130° at 10 kt
Gusts: 20 kt
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the Southeast (130°) at 10 kt. Gusts up to 20 kt are expected. 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.