Portland International Jetport

KPWM / PWM

Portland, US

Current TAF Forecast

Raw TAF:
TAF KPWM 270520Z 2706/2806 VRB03KT P6SM SKC FM271800 15008KT P6SM FEW250 FM280000 VRB03KT P6SM BKN250

Detailed TAF Table

Parameter
Mon
06:00Z
+-1h
Mon
07:00Z
+0h
Mon
08:00Z
+1h
Mon
09:00Z
+2h
Mon
10:00Z
+3h
Mon
11:00Z
+4h
Mon
12:00Z
+5h
Mon
13:00Z
+6h
Mon
14:00Z
+7h
Mon
15:00Z
+8h
Mon
16:00Z
+9h
Mon
17:00Z
+10h
Mon
18:00Z
+11h
Mon
19:00Z
+12h
Mon
20:00Z
+13h
Mon
21:00Z
+14h
Mon
22:00Z
+15h
Mon
23:00Z
+16h
Tue
00:00Z
+17h
Tue
01:00Z
+18h
Tue
02:00Z
+19h
Tue
03:00Z
+20h
Tue
04:00Z
+21h
Wind Dir
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
VRB
VRB
VRB
VRB
VRB
Wind Speed
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
3 kt
3 kt
3 kt
3 kt
3 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
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
FEW250
FEW250
FEW250
FEW250
FEW250
FEW250
BKN250
BKN250
BKN250
BKN250
BKN250
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
25,000 ft
AGL
25,000 ft
AGL
25,000 ft
AGL
25,000 ft
AGL
25,000 ft
AGL
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
Day/Night
☀️
Day
🌅 04:51Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 19:08Z
☀️
Day
🌇 19:08Z
☀️
Day
🌇 19:08Z
🌙
Night
🌇 19:08Z
🌙
Night
🌇 19:08Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 04:52Z
🌙
Night
🌅 04:52Z
🌙
Night
🌅 04:52Z
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
VRB° at 3 kt
Visibility
>6SM
Clouds
CLR
📖 Plain English Explanation:

This is the base forecast condition. Winds will be variable in direction at 3 kt. Visibility will be excellent at more than 6SM. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM271800 18:00Z - 00:00Z
VFR
Wind
150° at 8 kt
Visibility
>6SM
Clouds
FEW250
📖 Plain English Explanation:

Winds from the South-Southeast (150°) at 8 kt. Visibility will be excellent at more than 6SM. Few clouds at 25000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM280000 00:00Z - 06:00Z
VFR
Wind
VRB° at 3 kt
Visibility
>6SM
Clouds
BKN250
📖 Plain English Explanation:

Winds will be variable in direction at 3 kt. Visibility will be excellent at more than 6SM. Broken clouds at 25000 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.