Washington Dulles International Airport

KIAD / IAD

Dulles, US

Current TAF Forecast

Raw TAF:
TAF KIAD 190300Z 1903/2006 12008G17KT P6SM BKN100 PROB30 1903/1909 09005KT 6SM -SHRA OVC050 FM190900 32017G26KT 6SM -SHRA SCT025 OVC050 PROB30 1909/1913 34022G35KT 4SM SHRA BR FM191300 32017G26KT 6SM -SHRA SCT025 OVC050 FM191600 32013G22KT P6SM BKN060 FM192200 31008G17KT P6SM SCT060

Detailed TAF Table

Parameter
Sun
04:00Z
+-1h
Sun
05:00Z
+0h
Sun
06:00Z
+1h
Sun
07:00Z
+2h
Sun
08:00Z
+3h
Sun
09:00Z
+4h
Sun
10:00Z
+5h
Sun
11:00Z
+6h
Sun
12:00Z
+7h
Sun
13:00Z
+8h
Sun
14:00Z
+9h
Sun
15:00Z
+10h
Sun
16:00Z
+11h
Sun
17:00Z
+12h
Sun
18:00Z
+13h
Sun
19:00Z
+14h
Sun
20:00Z
+15h
Sun
21:00Z
+16h
Sun
22:00Z
+17h
Sun
23:00Z
+18h
Mon
00:00Z
+19h
Mon
01:00Z
+20h
Mon
02:00Z
+21h
Mon
03:00Z
+22h
Mon
04:00Z
+23h
Wind Dir
120°
SE
120°
SE
120°
SE
120°
SE
120°
SE
340°
N
340°
N
340°
N
340°
N
320°
NW
320°
NW
320°
NW
320°
NW
320°
NW
320°
NW
320°
NW
320°
NW
320°
NW
310°
NW
310°
NW
310°
NW
310°
NW
310°
NW
310°
NW
120°
SE
Wind Speed
8 kt
G17 kt
8 kt
G17 kt
8 kt
G17 kt
8 kt
G17 kt
8 kt
G17 kt
22 kt
G35 kt
22 kt
G35 kt
22 kt
G35 kt
22 kt
G35 kt
17 kt
G26 kt
17 kt
G26 kt
17 kt
G26 kt
13 kt
G22 kt
13 kt
G22 kt
13 kt
G22 kt
13 kt
G22 kt
13 kt
G22 kt
13 kt
G22 kt
8 kt
G17 kt
8 kt
G17 kt
8 kt
G17 kt
8 kt
G17 kt
8 kt
G17 kt
8 kt
G17 kt
8 kt
G17 kt
Visibility
>6SM
>6SM
>6SM
>6SM
>6SM
4SM
4SM
4SM
4SM
6SM
6SM
6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Showers Rain, Mist
SHRA BR
30%
Showers Rain, Mist
SHRA BR
30%
Showers Rain, Mist
SHRA BR
30%
Showers Rain, Mist
SHRA BR
30%
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
BKN100
BKN100
BKN100
BKN100
BKN100
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
SCT025
OVC050
SCT025
OVC050
SCT025
OVC050
BKN060
BKN060
BKN060
BKN060
BKN060
BKN060
SCT060
SCT060
SCT060
SCT060
SCT060
SCT060
BKN100
Ceiling
10,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
5,000 ft
AGL
5,000 ft
AGL
5,000 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
10,000 ft
AGL
Flight Rules VFR VFR VFR VFR VFR MVFR MVFR MVFR MVFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
🌙
Night
🌅 05:26Z
🌅
Dawn
🌅 05:26Z
☀️
Day
🌅 05:26Z
☀️
Day
🌅 05:26Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:33Z
☀️
Day
🌇 18:33Z
☀️
Day
🌇 18:33Z
🌇
Dusk
🌇 18:33Z
🌙
Night
🌇 18:33Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:25Z
🌙
Night
🌅 05:25Z
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 8 kt
Gusts: 17 kt
Visibility
>6SM
Clouds
BKN100
📖 Plain English Explanation:

This is the base forecast condition. Winds from the East-Southeast (120°) at 8 kt. Gusts up to 17 kt are expected. Visibility will be excellent at more than 6SM. Broken clouds at 10000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

PROB30 03:00Z - 09:00Z
VFR
Wind
90° at 5 kt
Visibility
6SM
Weather
Light Showers Rain
Clouds
OVC050
📖 Plain English Explanation:

There is a 30% probability of: Winds from the East (90°) at 5 kt. Visibility will be excellent at 6SM. Weather conditions: Light Showers Rain. Overcast skies at 5000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM190900 09:00Z - 15:00Z
VFR
Wind
320° at 17 kt
Gusts: 26 kt
Visibility
6SM
Weather
Light Showers Rain
Clouds
SCT025 OVC050
📖 Plain English Explanation:

Winds from the Northwest (320°) at 17 kt. Gusts up to 26 kt are expected. Visibility will be excellent at 6SM. Weather conditions: Light Showers Rain. Scattered clouds at 2500 feet, Overcast skies at 5000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

PROB30 09:00Z - 13:00Z
MVFR
Wind
340° at 22 kt
Gusts: 35 kt
Visibility
4SM
Weather
Showers Rain, Mist
📖 Plain English Explanation:

There is a 30% probability of: Winds from the North-Northwest (340°) at 22 kt. Gusts up to 35 kt are expected. Visibility will be good at 4SM. Weather conditions: Showers Rain, Mist. Marginal VFR conditions - some restrictions for visual flying.

FM191300 13:00Z - 19:00Z
VFR
Wind
320° at 17 kt
Gusts: 26 kt
Visibility
6SM
Weather
Light Showers Rain
Clouds
SCT025 OVC050
📖 Plain English Explanation:

Winds from the Northwest (320°) at 17 kt. Gusts up to 26 kt are expected. Visibility will be excellent at 6SM. Weather conditions: Light Showers Rain. Scattered clouds at 2500 feet, Overcast skies at 5000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM191600 16:00Z - 22:00Z
VFR
Wind
320° at 13 kt
Gusts: 22 kt
Visibility
>6SM
Clouds
BKN060
📖 Plain English Explanation:

Winds from the Northwest (320°) at 13 kt. Gusts up to 22 kt are expected. Visibility will be excellent at more than 6SM. Broken clouds at 6000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM192200 22:00Z - 04:00Z
VFR
Wind
310° at 8 kt
Gusts: 17 kt
Visibility
>6SM
Clouds
SCT060
📖 Plain English Explanation:

Winds from the Northwest (310°) at 8 kt. Gusts up to 17 kt are expected. Visibility will be excellent at more than 6SM. Scattered clouds at 6000 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.