Chicago O'Hare International Airport

KORD / ORD

Chicago, US

Current TAF Forecast

Raw TAF:
TAF KORD 041018Z 0410/0512 07006KT 4SM BR BKN004 TEMPO 0410/0412 2SM BR FM041600 09010KT P6SM SCT008 OVC015 PROB30 0418/0423 4SM -DZ BR BKN008 FM050200 04006KT 3SM -DZ BR SCT003 OVC006 FM050500 04005KT 1SM -DZ BR SCT002 OVC004 PROB30 0506/0512 1/2SM -DZ FG OVC003

Detailed TAF Table

Parameter
Wed
10:00Z
+-1h
Wed
11:00Z
+0h
Wed
12:00Z
+1h
Wed
13:00Z
+2h
Wed
14:00Z
+3h
Wed
15:00Z
+4h
Wed
16:00Z
+5h
Wed
17:00Z
+6h
Wed
18:00Z
+7h
Wed
19:00Z
+8h
Wed
20:00Z
+9h
Wed
21:00Z
+10h
Wed
22:00Z
+11h
Wed
23:00Z
+12h
Thu
00:00Z
+13h
Thu
01:00Z
+14h
Thu
02:00Z
+15h
Thu
03:00Z
+16h
Thu
04:00Z
+17h
Thu
05:00Z
+18h
Thu
06:00Z
+19h
Thu
07:00Z
+20h
Thu
08:00Z
+21h
Thu
09:00Z
+22h
Thu
10:00Z
+23h
Wind Dir
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
90°
E
90°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
40°
NE
40°
NE
40°
NE
40°
NE
70°
E
70°
E
70°
E
70°
E
70°
E
Wind Speed
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
10 kt
10 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
5 kt
6 kt
6 kt
6 kt
6 kt
6 kt
Visibility
4SM
4SM
4SM
4SM
4SM
4SM
>6SM
>6SM
4SM
4SM
4SM
4SM
4SM
4SM
4SM
4SM
3SM
3SM
3SM
1SM
1/2SM
1/2SM
1/2SM
1/2SM
1/2SM
Weather
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
☀️ Clear
☀️ Clear
Light Drizzle, Mist
-DZ BR
30%
Light Drizzle, Mist
-DZ BR
30%
Light Drizzle, Mist
-DZ BR
30%
Light Drizzle, Mist
-DZ BR
30%
Light Drizzle, Mist
-DZ BR
30%
Mist
BR
Mist
BR
Mist
BR
Light Drizzle, Mist
-DZ BR
Light Drizzle, Mist
-DZ BR
Light Drizzle, Mist
-DZ BR
Light Drizzle, Mist
-DZ BR
Light Drizzle, Fog
-DZ FG
30%
Light Drizzle, Fog
-DZ FG
30%
Light Drizzle, Fog
-DZ FG
30%
Light Drizzle, Fog
-DZ FG
30%
Light Drizzle, Fog
-DZ FG
30%
Clouds
BKN004
BKN004
BKN004
BKN004
BKN004
BKN004
SCT008
OVC015
SCT008
OVC015
BKN008
BKN008
BKN008
BKN008
BKN008
BKN004
BKN004
BKN004
SCT003
OVC006
SCT003
OVC006
SCT003
OVC006
SCT002
OVC004
OVC003
OVC003
OVC003
OVC003
OVC003
Ceiling
400 ft
AGL
400 ft
AGL
400 ft
AGL
400 ft
AGL
400 ft
AGL
400 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
800 ft
AGL
800 ft
AGL
800 ft
AGL
800 ft
AGL
800 ft
AGL
400 ft
AGL
400 ft
AGL
400 ft
AGL
600 ft
AGL
600 ft
AGL
600 ft
AGL
400 ft
AGL
300 ft
AGL
300 ft
AGL
300 ft
AGL
300 ft
AGL
300 ft
AGL
Flight Rules LIFR LIFR LIFR LIFR LIFR LIFR MVFR MVFR IFR IFR IFR IFR IFR LIFR LIFR LIFR IFR IFR IFR LIFR LIFR LIFR LIFR LIFR LIFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:34Z
☀️
Day
🌇 17:34Z
☀️
Day
🌇 17:34Z
🌇
Dusk
🌇 17:34Z
🌙
Night
🌇 17:34Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:24Z
🌙
Night
🌅 06:24Z
🌅
Dawn
🌅 06:24Z
☀️
Day
🌅 06:24Z
☀️
Day
🌅 06:24Z
☀️
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
LIFR
Wind
70° at 6 kt
Visibility
4SM
Weather
Mist
Clouds
BKN004
📖 Plain English Explanation:

This is the base forecast condition. Winds from the East-Northeast (70°) at 6 kt. Visibility will be good at 4SM. Weather conditions: Mist. Broken clouds at 400 feet. Low IFR conditions - challenging even for instrument operations.

TEMPO 10:00Z - 12:00Z
IFR
Visibility
2SM
Weather
Mist
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be moderate at 2SM. Weather conditions: Mist. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM041600 16:00Z - 22:00Z
MVFR
Wind
90° at 10 kt
Visibility
>6SM
Clouds
SCT008 OVC015
📖 Plain English Explanation:

Winds from the East (90°) at 10 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 800 feet, Overcast skies at 1500 feet. Marginal VFR conditions - some restrictions for visual flying.

PROB30 18:00Z - 23:00Z
IFR
Visibility
4SM
Weather
Light Drizzle, Mist
Clouds
BKN008
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be good at 4SM. Weather conditions: Light Drizzle, Mist. Broken clouds at 800 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM050200 02:00Z - 08:00Z
IFR
Wind
40° at 6 kt
Visibility
3SM
Weather
Light Drizzle, Mist
Clouds
SCT003 OVC006
📖 Plain English Explanation:

Winds from the Northeast (40°) at 6 kt. Visibility will be good at 3SM. Weather conditions: Light Drizzle, Mist. Scattered clouds at 300 feet, Overcast skies at 600 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM050500 05:00Z - 11:00Z
LIFR
Wind
40° at 5 kt
Visibility
1SM
Weather
Light Drizzle, Mist
Clouds
SCT002 OVC004
📖 Plain English Explanation:

Winds from the Northeast (40°) at 5 kt. Visibility will be moderate at 1SM. Weather conditions: Light Drizzle, Mist. Scattered clouds at 200 feet, Overcast skies at 400 feet. Low IFR conditions - challenging even for instrument operations.

PROB30 06:00Z - 12:00Z
LIFR
Visibility
1/2SM
Weather
Light Drizzle, Fog
Clouds
OVC003
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be moderate at 1/2SM. Weather conditions: Light Drizzle, Fog. Overcast skies at 300 feet. Low IFR conditions - challenging even for instrument 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.