Antonio B. Won Pat International Airport

PGUM / GUM

Hagåtña, GU

Current TAF Forecast

Raw TAF:
TAF PGUM 141127Z 1412/1518 12009KT P6SM VCSH SCT020 PROB30 1415/1419 11010G18KT 5SM -SHRA SCT015 BKN028 FM142300 10012G18KT P6SM VCSH FEW022 FM150900 09012KT P6SM VCSH SCT022

Detailed TAF Table

Parameter
Thu
15:00Z
+-1h
Thu
16:00Z
+0h
Thu
17:00Z
+1h
Thu
18:00Z
+2h
Thu
19:00Z
+3h
Thu
20:00Z
+4h
Thu
21:00Z
+5h
Thu
22:00Z
+6h
Thu
23:00Z
+7h
Fri
00:00Z
+8h
Fri
01:00Z
+9h
Fri
02:00Z
+10h
Fri
03:00Z
+11h
Fri
04:00Z
+12h
Fri
05:00Z
+13h
Fri
06:00Z
+14h
Fri
07:00Z
+15h
Fri
08:00Z
+16h
Fri
09:00Z
+17h
Fri
10:00Z
+18h
Fri
11:00Z
+19h
Fri
12:00Z
+20h
Fri
13:00Z
+21h
Fri
14:00Z
+22h
Fri
15:00Z
+23h
Fri
16:00Z
+24h
Wind Dir
120°
SE
120°
SE
120°
SE
120°
SE
120°
SE
120°
SE
120°
SE
120°
SE
100°
E
100°
E
100°
E
100°
E
100°
E
100°
E
120°
SE
120°
SE
120°
SE
120°
SE
90°
E
90°
E
90°
E
90°
E
90°
E
90°
E
120°
SE
120°
SE
Wind Speed
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
12 kt
G18 kt
12 kt
G18 kt
12 kt
G18 kt
12 kt
G18 kt
12 kt
G18 kt
12 kt
G18 kt
9 kt
9 kt
9 kt
9 kt
12 kt
12 kt
12 kt
12 kt
12 kt
12 kt
9 kt
9 kt
Visibility
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
SCT020
SCT020
SCT020
SCT020
SCT020
SCT020
SCT020
SCT020
FEW022
FEW022
FEW022
FEW022
FEW022
FEW022
SCT020
SCT020
SCT020
SCT020
SCT022
SCT022
SCT022
SCT022
SCT022
SCT022
SCT020
SCT020
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ 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 VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
☀️
Day
☀️
Day
🌇 18:21Z
☀️
Day
🌇 18:21Z
☀️
Day
🌇 18:21Z
🌙
Night
🌇 18:21Z
🌙
Night
🌇 18:21Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:37Z
🌙
Night
🌅 05:37Z
🌙
Night
🌅 05:37Z
☀️
Day
🌅 05:37Z
☀️
Day
🌅 05:37Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:22Z
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 9 kt
Visibility
>6SM
Clouds
SCT020
📖 Plain English Explanation:

This is the base forecast condition. Winds from the East-Southeast (120°) at 9 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 2000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

PROB30 15:00Z - 19:00Z
MVFR
Wind
110° at 10 kt
Gusts: 18 kt
Visibility
5SM
Weather
Light Showers Rain
Clouds
SCT015 BKN028
📖 Plain English Explanation:

There is a 30% probability of: Winds from the East-Southeast (110°) at 10 kt. Gusts up to 18 kt are expected. Visibility will be good at 5SM. Weather conditions: Light Showers Rain. Scattered clouds at 1500 feet, Broken clouds at 2800 feet. Marginal VFR conditions - some restrictions for visual flying.

FM142300 23:00Z - 05:00Z
VFR
Wind
100° at 12 kt
Gusts: 18 kt
Visibility
>6SM
Clouds
FEW022
📖 Plain English Explanation:

Winds from the East (100°) at 12 kt. Gusts up to 18 kt are expected. Visibility will be excellent at more than 6SM. Few clouds at 2200 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM150900 09:00Z - 15:00Z
VFR
Wind
90° at 12 kt
Visibility
>6SM
Clouds
SCT022
📖 Plain English Explanation:

Winds from the East (90°) at 12 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 2200 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.