Altoona Blair County Airport

KAOO / AOO

Altoona, US

Current TAF Forecast

Raw TAF:
TAF KAOO 041136Z 0412/0512 00000KT 1/4SM FG OVC003 FM041400 00000KT 1SM BR OVC003 FM042300 VRB03KT 2SM BR OVC003 FM050200 VRB02KT 1/4SM FG OVC002 FM050700 VRB02KT 1/4SM -RA FG OVC002

Detailed TAF Table

Parameter
Wed
14:00Z
+-1h
Wed
15:00Z
+0h
Wed
16:00Z
+1h
Wed
17:00Z
+2h
Wed
18:00Z
+3h
Wed
19:00Z
+4h
Wed
20:00Z
+5h
Wed
21:00Z
+6h
Wed
22:00Z
+7h
Wed
23:00Z
+8h
Thu
00:00Z
+9h
Thu
01:00Z
+10h
Thu
02:00Z
+11h
Thu
03:00Z
+12h
Thu
04:00Z
+13h
Thu
05:00Z
+14h
Thu
06:00Z
+15h
Thu
07:00Z
+16h
Thu
08:00Z
+17h
Thu
09:00Z
+18h
Thu
10:00Z
+19h
Wind Dir -- -- -- -- -- -- -- -- --
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
Wind Speed -- -- -- -- -- -- -- -- --
3 kt
3 kt
3 kt
2 kt
2 kt
2 kt
2 kt
2 kt
2 kt
2 kt
2 kt
2 kt
Visibility
1/4SM
1/4SM
1/4SM
1/4SM
1/4SM
1/4SM
1/4SM
1/4SM
1/4SM
2SM
2SM
2SM
1/4SM
1/4SM
1/4SM
1/4SM
1/4SM
1/4SM
1/4SM
1/4SM
1/4SM
Weather
Fog
FG
Fog
FG
Fog
FG
Fog
FG
Fog
FG
Fog
FG
Fog
FG
Fog
FG
Fog
FG
Mist
BR
Mist
BR
Mist
BR
Fog
FG
Fog
FG
Fog
FG
Fog
FG
Fog
FG
Light Rain, Fog
-RA FG
Light Rain, Fog
-RA FG
Light Rain, Fog
-RA FG
Light Rain, Fog
-RA FG
Clouds
OVC003
OVC003
OVC003
OVC003
OVC003
OVC003
OVC003
OVC003
OVC003
OVC003
OVC003
OVC003
OVC002
OVC002
OVC002
OVC002
OVC002
OVC002
OVC002
OVC002
OVC002
Ceiling
300 ft
AGL
300 ft
AGL
300 ft
AGL
300 ft
AGL
300 ft
AGL
300 ft
AGL
300 ft
AGL
300 ft
AGL
300 ft
AGL
300 ft
AGL
300 ft
AGL
300 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
Flight Rules LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR
Day/Night
☀️
Day
☀️
Day
🌇 17:35Z
☀️
Day
🌇 17:35Z
☀️
Day
🌇 17:35Z
🌇
Dusk
🌇 17:35Z
🌙
Night
🌇 17:35Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:23Z
🌙
Night
🌅 06:23Z
🌅
Dawn
🌅 06:23Z
☀️
Day
🌅 06:23Z
☀️
Day
🌅 06:23Z
☀️
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
0° at 0 kt
Visibility
1/4SM
Weather
Fog
Clouds
OVC003
📖 Plain English Explanation:

This is the base forecast condition. Winds from the North (0°) at 0 kt. Visibility will be moderate at 1/4SM. Weather conditions: Fog. Overcast skies at 300 feet. Low IFR conditions - challenging even for instrument operations.

FM041400 14:00Z - 20:00Z
LIFR
Wind
0° at 0 kt
Visibility
1SM
Weather
Mist
Clouds
OVC003
📖 Plain English Explanation:

Winds from the North (0°) at 0 kt. Visibility will be moderate at 1SM. Weather conditions: Mist. Overcast skies at 300 feet. Low IFR conditions - challenging even for instrument operations.

FM042300 23:00Z - 05:00Z
LIFR
Wind
VRB° at 3 kt
Visibility
2SM
Weather
Mist
Clouds
OVC003
📖 Plain English Explanation:

Winds will be variable in direction at 3 kt. Visibility will be moderate at 2SM. Weather conditions: Mist. Overcast skies at 300 feet. Low IFR conditions - challenging even for instrument operations.

FM050200 02:00Z - 08:00Z
LIFR
Wind
VRB° at 2 kt
Visibility
1/4SM
Weather
Fog
Clouds
OVC002
📖 Plain English Explanation:

Winds will be variable in direction at 2 kt. Visibility will be moderate at 1/4SM. Weather conditions: Fog. Overcast skies at 200 feet. Low IFR conditions - challenging even for instrument operations.

FM050700 07:00Z - 13:00Z
LIFR
Wind
VRB° at 2 kt
Visibility
1/4SM
Weather
Light Rain, Fog
Clouds
OVC002
📖 Plain English Explanation:

Winds will be variable in direction at 2 kt. Visibility will be moderate at 1/4SM. Weather conditions: Light Rain, Fog. Overcast skies at 200 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.