GU
PGUA
TAF Forecast

Andersen Air Force Base

PGUA / UAM

Yigo, GU

Current TAF Forecast

Raw TAF:

TAF PGUA 041000Z 0410/0516 35015G20KT 6000 -SHRA BKN009 OVC015 QNH2974INS BECMG 0501/0502 33020G30KT 4800 SHRA BKN009 OVC015 QNH2973INS BECMG 0509/0510 01035G45KT 3200 RA BKN007 OVC012 QNH2972INS TX29/0501Z TN24/0514Z

Detailed TAF Table

Parameter	Sat 12:00Z +-1h	Sat 13:00Z +0h	Sat 14:00Z +1h	Sat 15:00Z +2h	Sat 16:00Z +3h	Sat 17:00Z +4h	Sat 18:00Z +5h	Sat 19:00Z +6h	Sat 20:00Z +7h	Sat 21:00Z +8h	Sat 22:00Z +9h	Sat 23:00Z +10h	Sun 00:00Z +11h	Sun 01:00Z +12h	Sun 02:00Z +13h	Sun 03:00Z +14h	Sun 04:00Z +15h	Sun 05:00Z +16h	Sun 06:00Z +17h	Sun 07:00Z +18h	Sun 08:00Z +19h	Sun 09:00Z +20h	Sun 10:00Z +21h	Sun 11:00Z +22h	Sun 12:00Z +23h	Sun 13:00Z +24h	Sun 14:00Z +25h
Wind Dir	350° N	350° N	350° N	350° N	350° N	350° N	350° N	350° N	350° N	350° N	350° N	350° N	350° N	330° NW	330° NW	330° NW	330° NW	330° NW	330° NW	330° NW	330° NW	10° N	10° N	10° N	10° N	10° N	10° N
Wind Speed	15 kt G20 kt	15 kt G20 kt	15 kt G20 kt	15 kt G20 kt	15 kt G20 kt	15 kt G20 kt	15 kt G20 kt	15 kt G20 kt	15 kt G20 kt	15 kt G20 kt	15 kt G20 kt	15 kt G20 kt	15 kt G20 kt	20 kt G30 kt	20 kt G30 kt	20 kt G30 kt	20 kt G30 kt	20 kt G30 kt	20 kt G30 kt	20 kt G30 kt	20 kt G30 kt	35 kt G45 kt	35 kt G45 kt	35 kt G45 kt	35 kt G45 kt	35 kt G45 kt	35 kt G45 kt
Visibility	6 km	6 km	6 km	6 km	6 km	6 km	6 km	6 km	6 km	6 km	6 km	6 km	6 km	4.8 km	4.8 km	4.8 km	4.8 km	4.8 km	4.8 km	4.8 km	4.8 km	3.2 km	3.2 km	3.2 km	3.2 km	3.2 km	3.2 km
Weather	Light Showers Rain -SHRA	Light Showers Rain -SHRA	Light Showers Rain -SHRA	Light Showers Rain -SHRA	Light Showers Rain -SHRA	Light Showers Rain -SHRA	Light Showers Rain -SHRA	Light Showers Rain -SHRA	Light Showers Rain -SHRA	Light Showers Rain -SHRA	Light Showers Rain -SHRA	Light Showers Rain -SHRA	Light Showers Rain -SHRA	Showers Rain SHRA	Showers Rain SHRA	Showers Rain SHRA	Showers Rain SHRA	Showers Rain SHRA	Showers Rain SHRA	Showers Rain SHRA	Showers Rain SHRA	Rain RA	Rain RA	Rain RA	Rain RA	Rain RA	Rain RA
Clouds	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN009 OVC015	BKN007 OVC012	BKN007 OVC012	BKN007 OVC012	BKN007 OVC012	BKN007 OVC012	BKN007 OVC012
Ceiling	900 ft AGL	900 ft AGL	900 ft AGL	900 ft AGL	900 ft AGL	900 ft AGL	900 ft AGL	900 ft AGL	900 ft AGL	900 ft AGL	900 ft AGL	900 ft AGL	900 ft AGL	900 ft AGL	900 ft AGL	900 ft AGL	900 ft AGL	900 ft AGL	900 ft AGL	900 ft AGL	900 ft AGL	700 ft AGL	700 ft AGL	700 ft AGL	700 ft AGL	700 ft AGL	700 ft AGL
Flight Rules	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR	IFR
Day/Night	☀️ Day	☀️ Day	☀️ Day	☀️ Day	☀️ Day 🌇 18:27Z	☀️ Day 🌇 18:27Z	☀️ Day 🌇 18:27Z	🌙 Night 🌇 18:27Z	🌙 Night 🌇 18:27Z	🌙 Night	🌙 Night	🌙 Night	🌙 Night	🌙 Night	🌙 Night	🌙 Night 🌅 05:32Z	🌙 Night 🌅 05:32Z	🌙 Night 🌅 05:32Z	☀️ Day 🌅 05:32Z	☀️ Day 🌅 05:32Z	☀️ 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

IFR

Wind

350° at 15 kt

Gusts: 20 kt

Visibility

6 km

Weather

Light Showers Rain

Clouds

BKN009 OVC015

📖 Plain English Explanation:

This is the base forecast condition. Winds from the North (350°) at 15 kt. Gusts up to 20 kt are expected. Visibility will be good at 6 km. Weather conditions: Light Showers Rain. Broken clouds at 900 feet, Overcast skies at 1500 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 01:00Z - 02:00Z

IFR

Wind

330° at 20 kt

Gusts: 30 kt

Visibility

4.8 km

Weather

Showers Rain

Clouds

BKN009 OVC015

📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the North-Northwest (330°) at 20 kt. Gusts up to 30 kt are expected. Visibility will be moderate at 4.8 km. Weather conditions: Showers Rain. Broken clouds at 900 feet, Overcast skies at 1500 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 09:00Z - 10:00Z

IFR

Wind

10° at 35 kt

Gusts: 45 kt

Visibility

3.2 km

Weather

Rain

Clouds

BKN007 OVC012

📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the North (10°) at 35 kt. Gusts up to 45 kt are expected. Visibility will be moderate at 3.2 km. Weather conditions: Rain. Broken clouds at 700 feet, Overcast skies at 1200 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

📚 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.