CN
ZLLL
TAF Forecast

Lanzhou Zhongchuan International Airport

ZLLL / LHW

Lanzhou (Yongdeng), CN

Current TAF Forecast

Raw TAF:

TAF ZLLL 142102Z 1500/1524 18003MPS 4000 -RA SCT010 BKN040 TX13/1508Z TN06/1522Z TEMPO 1512/1516 SHRA FEW033CB BKN040 BECMG 1519/1520 5000 BR

Detailed TAF Table

Parameter	Fri 00:00Z +-1h	Fri 01:00Z +0h	Fri 02:00Z +1h	Fri 03:00Z +2h	Fri 04:00Z +3h	Fri 05:00Z +4h	Fri 06:00Z +5h	Fri 07:00Z +6h	Fri 08:00Z +7h	Fri 09:00Z +8h	Fri 10:00Z +9h	Fri 11:00Z +10h	Fri 12:00Z +11h	Fri 13:00Z +12h	Fri 14:00Z +13h	Fri 15:00Z +14h	Fri 16:00Z +15h	Fri 17:00Z +16h	Fri 18:00Z +17h	Fri 19:00Z +18h	Fri 20:00Z +19h	Fri 21:00Z +20h	Fri 22:00Z +21h
Wind Dir	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Wind Speed	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Visibility	4 km	4 km	4 km	4 km	4 km	4 km	4 km	4 km	4 km	4 km	4 km	4 km	5 km	5 km	5 km	5 km	4 km	4 km	4 km	5 km	5 km	5 km	5 km
Weather	Light Rain -RA	Light Rain -RA	Light Rain -RA	Light Rain -RA	Light Rain -RA	Light Rain -RA	Light Rain -RA	Light Rain -RA	Light Rain -RA	Light Rain -RA	Light Rain -RA	Light Rain -RA	Showers Rain SHRA	Showers Rain SHRA	Showers Rain SHRA	Showers Rain SHRA	Light Rain -RA	Light Rain -RA	Light Rain -RA	Mist BR	Mist BR	Mist BR	Mist BR
Clouds	SCT010 BKN040	SCT010 BKN040	SCT010 BKN040	SCT010 BKN040	SCT010 BKN040	SCT010 BKN040	SCT010 BKN040	SCT010 BKN040	SCT010 BKN040	SCT010 BKN040	SCT010 BKN040	SCT010 BKN040	FEW033CB BKN040	FEW033CB BKN040	FEW033CB BKN040	FEW033CB BKN040	SCT010 BKN040	SCT010 BKN040	SCT010 BKN040	☀️ CLR	☀️ CLR	☀️ CLR	☀️ CLR
Ceiling	4,000 ft AGL	4,000 ft AGL	4,000 ft AGL	4,000 ft AGL	4,000 ft AGL	4,000 ft AGL	4,000 ft AGL	4,000 ft AGL	4,000 ft AGL	4,000 ft AGL	4,000 ft AGL	4,000 ft AGL	4,000 ft AGL	4,000 ft AGL	4,000 ft AGL	4,000 ft AGL	4,000 ft AGL	4,000 ft AGL	4,000 ft AGL	🌤️ Unlimited	🌤️ Unlimited	🌤️ Unlimited	🌤️ Unlimited
Flight Rules	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	MVFR	MVFR	MVFR	MVFR	IFR	IFR	IFR	MVFR	MVFR	MVFR	MVFR
Day/Night	🌙 Night	🌙 Night	🌙 Night	🌙 Night 🌅 05:03Z	🌙 Night 🌅 05:03Z	🌅 Dawn 🌅 05:03Z	☀️ Day 🌅 05:03Z	☀️ Day 🌅 05:03Z	☀️ Day	☀️ Day	☀️ Day	☀️ Day	☀️ Day	☀️ Day	☀️ Day	☀️ Day	☀️ Day 🌇 18:56Z	☀️ Day 🌇 18:56Z	☀️ Day 🌇 18:56Z	🌇 Dusk 🌇 18:56Z	🌙 Night 🌇 18:56Z	🌙 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 occurrence • AGL: Above Ground Level

Forecast Periods

BASE

IFR

Visibility

4 km

Weather

Light Rain

Clouds

SCT010 BKN040

📖 Plain English Explanation:

This is the base forecast condition. Visibility will be moderate at 4 km. Weather conditions: Light Rain. Scattered clouds at 1000 feet, Broken clouds at 4000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

TEMPO 12:00Z - 16:00Z

MVFR

Weather

Showers Rain

Clouds

FEW033CB BKN040

📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Weather conditions: Showers Rain. Few clouds at 3300 feet, Broken clouds at 4000 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 19:00Z - 20:00Z

MVFR

Visibility

5 km

Weather

Mist

📖 Plain English Explanation:

Conditions will gradually change to become: Visibility will be good at 5 km. Weather conditions: Mist. Marginal VFR conditions - some restrictions for visual flying.

📚 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.