Ontario International Airport

KONT / ONT

Ontario, US

Current TAF Forecast

Raw TAF:
TAF KONT 040520Z 0406/0512 VRB05KT P6SM BKN200 FM042100 25011KT P6SM SCT080 BKN120 FM050500 VRB05KT 5SM FU HZ FEW008 SCT150 FM050700 VRB04KT P6SM SCT150

Detailed TAF Table

Parameter
Sat
11:00Z
+-1h
Sat
12:00Z
+0h
Sat
13:00Z
+1h
Sat
14:00Z
+2h
Sat
15:00Z
+3h
Sat
16:00Z
+4h
Sat
17:00Z
+5h
Sat
18:00Z
+6h
Sat
19:00Z
+7h
Sat
20:00Z
+8h
Sat
21:00Z
+9h
Sat
22:00Z
+10h
Sat
23:00Z
+11h
Sun
00:00Z
+12h
Sun
01:00Z
+13h
Sun
02:00Z
+14h
Sun
03:00Z
+15h
Sun
04:00Z
+16h
Sun
05:00Z
+17h
Sun
06:00Z
+18h
Sun
07:00Z
+19h
Sun
08:00Z
+20h
Sun
09:00Z
+21h
Sun
10:00Z
+22h
Wind Dir
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
250°
W
250°
W
250°
W
250°
W
250°
W
250°
W
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
Wind Speed
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
11 kt
11 kt
11 kt
11 kt
11 kt
11 kt
5 kt
5 kt
5 kt
5 kt
4 kt
4 kt
4 kt
4 kt
Visibility
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
5SM
5SM
>6SM
>6SM
>6SM
>6SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Smoke, Haze
FU HZ
Smoke, Haze
FU HZ
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
BKN200
BKN200
BKN200
BKN200
BKN200
BKN200
BKN200
BKN200
BKN200
BKN200
SCT080
BKN120
SCT080
BKN120
SCT080
BKN120
SCT080
BKN120
SCT080
BKN120
SCT080
BKN120
BKN200
BKN200
FEW008
SCT150
FEW008
SCT150
SCT150
SCT150
SCT150
SCT150
Ceiling
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR MVFR MVFR VFR VFR VFR VFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 19:05Z
☀️
Day
🌇 19:05Z
☀️
Day
🌇 19:05Z
🌙
Night
🌇 19:05Z
🌙
Night
🌇 19:05Z
🌙
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
VFR
Wind
VRB° at 5 kt
Visibility
>6SM
Clouds
BKN200
📖 Plain English Explanation:

This is the base forecast condition. Winds will be variable in direction at 5 kt. Visibility will be excellent at more than 6SM. Broken clouds at 20000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM042100 21:00Z - 03:00Z
VFR
Wind
250° at 11 kt
Visibility
>6SM
Clouds
SCT080 BKN120
📖 Plain English Explanation:

Winds from the West-Southwest (250°) at 11 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 8000 feet, Broken clouds at 12000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM050500 05:00Z - 11:00Z
MVFR
Wind
VRB° at 5 kt
Visibility
5SM
Weather
Smoke, Haze
Clouds
FEW008 SCT150
📖 Plain English Explanation:

Winds will be variable in direction at 5 kt. Visibility will be good at 5SM. Weather conditions: Smoke, Haze. Few clouds at 800 feet, Scattered clouds at 15000 feet. Marginal VFR conditions - some restrictions for visual flying.

FM050700 07:00Z - 13:00Z
VFR
Wind
VRB° at 4 kt
Visibility
>6SM
Clouds
SCT150
📖 Plain English Explanation:

Winds will be variable in direction at 4 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 15000 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.