Ontario International Airport

KONT / ONT

Ontario, US

Current TAF Forecast

Raw TAF:
TAF KONT 150520Z 1506/1612 25005KT P6SM SKC FM151100 VRB04KT 5SM BR BKN010 FM151700 VRB05KT 5SM HZ SCT015 FM152100 25011KT P6SM SKC FM160500 VRB05KT P6SM SKC FM161000 VRB04KT 5SM BR BKN010

Detailed TAF Table

Parameter
Fri
10:00Z
+-1h
Fri
11:00Z
+0h
Fri
12:00Z
+1h
Fri
13:00Z
+2h
Fri
14:00Z
+3h
Fri
15:00Z
+4h
Fri
16:00Z
+5h
Fri
17:00Z
+6h
Fri
18:00Z
+7h
Fri
19:00Z
+8h
Fri
20:00Z
+9h
Fri
21:00Z
+10h
Fri
22:00Z
+11h
Fri
23:00Z
+12h
Sat
00:00Z
+13h
Sat
01:00Z
+14h
Sat
02:00Z
+15h
Sat
03:00Z
+16h
Sat
04:00Z
+17h
Sat
05:00Z
+18h
Sat
06:00Z
+19h
Sat
07:00Z
+20h
Sat
08:00Z
+21h
Sat
09:00Z
+22h
Sat
10:00Z
+23h
Wind Dir
250°
W
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
250°
W
250°
W
250°
W
250°
W
250°
W
250°
W
250°
W
250°
W
VRB
VRB
VRB
VRB
VRB
VRB
Wind Speed
5 kt
4 kt
4 kt
4 kt
4 kt
4 kt
4 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
5 kt
5 kt
5 kt
4 kt
Visibility
>6SM
5SM
5SM
5SM
5SM
5SM
5SM
5SM
5SM
5SM
5SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
5SM
Weather
☀️ Clear
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Haze
HZ
Haze
HZ
Haze
HZ
Haze
HZ
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Mist
BR
Clouds
CLR
BKN010
BKN010
BKN010
BKN010
BKN010
BKN010
SCT015
SCT015
SCT015
SCT015
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
BKN010
Ceiling
🌤️ Unlimited
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
1,000 ft
AGL
Flight Rules VFR IFR IFR IFR IFR IFR IFR MVFR MVFR MVFR MVFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR IFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:53Z
☀️
Day
🌇 18:53Z
☀️
Day
🌇 18:53Z
🌇
Dusk
🌇 18:53Z
🌙
Night
🌇 18:53Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:06Z
🌙
Night
🌅 05:06Z
🌅
Dawn
🌅 05:06Z
☀️
Day
🌅 05:06Z
☀️
Day
🌅 05:06Z
☀️
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
250° at 5 kt
Visibility
>6SM
Clouds
CLR
📖 Plain English Explanation:

This is the base forecast condition. Winds from the West-Southwest (250°) at 5 kt. Visibility will be excellent at more than 6SM. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM151100 11:00Z - 17:00Z
IFR
Wind
VRB° at 4 kt
Visibility
5SM
Weather
Mist
Clouds
BKN010
📖 Plain English Explanation:

Winds will be variable in direction at 4 kt. Visibility will be good at 5SM. Weather conditions: Mist. Broken clouds at 1000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM151700 17:00Z - 23:00Z
MVFR
Wind
VRB° at 5 kt
Visibility
5SM
Weather
Haze
Clouds
SCT015
📖 Plain English Explanation:

Winds will be variable in direction at 5 kt. Visibility will be good at 5SM. Weather conditions: Haze. Scattered clouds at 1500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM152100 21:00Z - 03:00Z
VFR
Wind
250° at 11 kt
Visibility
>6SM
Clouds
CLR
📖 Plain English Explanation:

Winds from the West-Southwest (250°) at 11 kt. Visibility will be excellent at more than 6SM. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM160500 05:00Z - 11:00Z
VFR
Wind
VRB° at 5 kt
Visibility
>6SM
Clouds
CLR
📖 Plain English Explanation:

Winds will be variable in direction at 5 kt. Visibility will be excellent at more than 6SM. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM161000 10:00Z - 16:00Z
IFR
Wind
VRB° at 4 kt
Visibility
5SM
Weather
Mist
Clouds
BKN010
📖 Plain English Explanation:

Winds will be variable in direction at 4 kt. Visibility will be good at 5SM. Weather conditions: Mist. Broken clouds at 1000 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.