Seattle–Tacoma International Airport

KSEA / SEA

Seattle, US

Current TAF Forecast

Raw TAF:
KSEA 150520Z 1506/1612 17012KT P6SM SCT025 OVC040 FM151000 15004KT P6SM SCT020 OVC040 FM151400 05005KT P6SM BKN015 FM151900 33007KT P6SM SCT025 SCT050 FM152300 36010KT P6SM SCT250 FM160600 02007KT 6SM HZ SCT250

Detailed TAF Table

Parameter
Mon
08:00Z
+-1h
Mon
09:00Z
+0h
Mon
10:00Z
+1h
Mon
11:00Z
+2h
Mon
12:00Z
+3h
Mon
13:00Z
+4h
Mon
14:00Z
+5h
Mon
15:00Z
+6h
Mon
16:00Z
+7h
Mon
17:00Z
+8h
Mon
18:00Z
+9h
Mon
19:00Z
+10h
Mon
20:00Z
+11h
Mon
21:00Z
+12h
Mon
22:00Z
+13h
Mon
23:00Z
+14h
Tue
00:00Z
+15h
Tue
01:00Z
+16h
Tue
02:00Z
+17h
Tue
03:00Z
+18h
Tue
04:00Z
+19h
Tue
05:00Z
+20h
Tue
06:00Z
+21h
Tue
07:00Z
+22h
Tue
08:00Z
+23h
Tue
09:00Z
+24h
Tue
10:00Z
+25h
Wind Dir
170°
S
170°
S
150°
SE
150°
SE
150°
SE
150°
SE
50°
NE
50°
NE
50°
NE
50°
NE
50°
NE
330°
NW
330°
NW
330°
NW
330°
NW
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
170°
S
20°
N
20°
N
20°
N
20°
N
20°
N
Wind Speed
12kt
12kt
4kt
4kt
4kt
4kt
5kt
5kt
5kt
5kt
5kt
7kt
7kt
7kt
7kt
10kt
10kt
10kt
10kt
10kt
10kt
12kt
7kt
7kt
7kt
7kt
7kt
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
6SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Haze
HZ
Haze
HZ
Haze
HZ
Haze
HZ
Haze
HZ
Clouds
SCT025
OVC040
SCT025
OVC040
SCT020
OVC040
SCT020
OVC040
SCT020
OVC040
SCT020
OVC040
BKN015
BKN015
BKN015
BKN015
BKN015
SCT025
SCT050
SCT025
SCT050
SCT025
SCT050
SCT025
SCT050
SCT250
SCT250
SCT250
SCT250
SCT250
SCT250
SCT025
OVC040
SCT250
SCT250
SCT250
SCT250
SCT250
Ceiling
4000ft
AGL
4000ft
AGL
4000ft
AGL
4000ft
AGL
4000ft
AGL
4000ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
4000ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR VFR VFR VFR VFR MVFR MVFR MVFR MVFR MVFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:10
☀️
Day
🌇 18:10
☀️
Day
🌇 18:10
🌙
Night
🌇 18:10
🌙
Night
🌇 18:10
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:51
🌙
Night
🌅 05:51
🌙
Night
🌅 05:51
☀️
Day
🌅 05:51
☀️
Day
🌅 05:51
☀️
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 occurrenceAGL: Above Ground Level

Forecast Periods

BASE
VFR
Wind
170° at 12 kt
Visibility
>6SM
Clouds
SCT025 OVC040
📖 Plain English Explanation:

This is the base forecast condition. Winds from the South (170°) at 12kt. Visibility will be excellent at more than 6SM. Scattered clouds at 2500 feet, Overcast skies at 4000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM151000 2025-09-15 10:00:00 - 2025-09-15 16:00:00
VFR
Wind
150° at 4 kt
Visibility
>6SM
Clouds
SCT020 OVC040
📖 Plain English Explanation:

Winds from the South-Southeast (150°) at 4kt. Visibility will be excellent at more than 6SM. Scattered clouds at 2000 feet, Overcast skies at 4000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM151400 2025-09-15 14:00:00 - 2025-09-15 20:00:00
MVFR
Wind
50° at 5 kt
Visibility
>6SM
Clouds
BKN015
📖 Plain English Explanation:

Winds from the Northeast (50°) at 5kt. Visibility will be excellent at more than 6SM. Broken clouds at 1500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM151900 2025-09-15 19:00:00 - 2025-09-16 01:00:00
VFR
Wind
330° at 7 kt
Visibility
>6SM
Clouds
SCT025 SCT050
📖 Plain English Explanation:

Winds from the North-Northwest (330°) at 7kt. Visibility will be excellent at more than 6SM. Scattered clouds at 2500 feet, Scattered clouds at 5000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM152300 2025-09-15 23:00:00 - 2025-09-16 05:00:00
VFR
Wind
360° at 10 kt
Visibility
>6SM
Clouds
SCT250
📖 Plain English Explanation:

Winds from the North (360°) at 10kt. Visibility will be excellent at more than 6SM. Scattered clouds at 25000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM160600 2025-09-16 06:00:00 - 2025-09-16 12:00:00
VFR
Wind
20° at 7 kt
Visibility
6SM
Weather
Haze
Clouds
SCT250
📖 Plain English Explanation:

Winds from the North-Northeast (20°) at 7kt. Visibility will be excellent at 6SM. Weather conditions: Haze. Scattered 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.