Portland International Jetport

KPWM / PWM

Portland, US

Current TAF Forecast

Raw TAF:
TAF KPWM 141120Z 1412/1512 13007KT 4SM -RA BR OVC035 WS020/17035KT FM141600 12008KT 4SM -RA BR OVC015 FM142200 08013G21KT 2SM -RA BR OVC007

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
Wind Dir
130°
SE
120°
SE
120°
SE
120°
SE
120°
SE
120°
SE
120°
SE
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
Wind Speed
7 kt
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
13 kt
G21 kt
13 kt
G21 kt
13 kt
G21 kt
13 kt
G21 kt
13 kt
G21 kt
13 kt
G21 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
Visibility
4SM
4SM
4SM
4SM
4SM
4SM
4SM
2SM
2SM
2SM
2SM
2SM
2SM
4SM
4SM
4SM
4SM
4SM
4SM
4SM
Weather
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Clouds
OVC035
OVC015
OVC015
OVC015
OVC015
OVC015
OVC015
OVC007
OVC007
OVC007
OVC007
OVC007
OVC007
OVC035
OVC035
OVC035
OVC035
OVC035
OVC035
OVC035
Ceiling
3,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
700 ft
AGL
700 ft
AGL
700 ft
AGL
700 ft
AGL
700 ft
AGL
700 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
Flight Rules MVFR MVFR MVFR MVFR MVFR MVFR MVFR IFR IFR IFR IFR IFR IFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
🌇 19:04Z
☀️
Day
🌇 19:04Z
☀️
Day
🌇 19:04Z
🌙
Night
🌇 19:04Z
🌙
Night
🌇 19:04Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 04:54Z
🌙
Night
🌅 04:54Z
🌙
Night
🌅 04:54Z
☀️
Day
🌅 04:54Z
☀️
Day
🌅 04:54Z
☀️
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
MVFR
Wind
130° at 7 kt
Visibility
4SM
Weather
Light Rain, Mist
Clouds
OVC035
📖 Plain English Explanation:

This is the base forecast condition. Winds from the Southeast (130°) at 7 kt. Visibility will be good at 4SM. Weather conditions: Light Rain, Mist. Overcast skies at 3500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM141600 16:00Z - 22:00Z
MVFR
Wind
120° at 8 kt
Visibility
4SM
Weather
Light Rain, Mist
Clouds
OVC015
📖 Plain English Explanation:

Winds from the East-Southeast (120°) at 8 kt. Visibility will be good at 4SM. Weather conditions: Light Rain, Mist. Overcast skies at 1500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM142200 22:00Z - 04:00Z
IFR
Wind
80° at 13 kt
Gusts: 21 kt
Visibility
2SM
Weather
Light Rain, Mist
Clouds
OVC007
📖 Plain English Explanation:

Winds from the East (80°) at 13 kt. Gusts up to 21 kt are expected. Visibility will be moderate at 2SM. Weather conditions: Light Rain, Mist. Overcast skies at 700 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.