Altoona Blair County Airport

KAOO / AOO

Altoona, US

Last Updated
Apr 19, 05:53Z

Current Weather

Display Units
Fresh 21 min ago
05:53Z

☀️ Day
LIFR
Flight Rules
12°C
Temperature
Dewpoint: 8°C
12 kt
320° G23 kt
0.445 km
Visibility
2,800 ft
Ceiling
Above Ground Level
1010 hPa
QNH
Altimeter Setting

Raw METAR

METAR KAOO 190553Z AUTO 32012G23KT 10SM OVC028 12/08 A2984 RMK AO2 WSHFT 0445 RAE00 SLP096 P0000 60025 T01220083 10189 20122 56008

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 1,503 ft
OVC 2,800 ft AGL
☁️
OVC
Overcast (8/8 sky coverage)
2,800 ft
AGL (Above Ground)
4,303 ft AMSL

Weather Briefing

LIFR

Altoona Blair County Airport is currently reporting low IFR (LIFR) conditions with overcast skies at 2,800 feet and 0.445 km visibility.

Wind Analysis

Winds are from the northwest (320°) at 12 knots with gusts to 23 knots. Runway 30 is favored with a 11-knot headwind and 4-knot crosswind component (gusting to 8 knots crosswind).

Visibility & Ceiling

Visibility is severely reduced to 0.445 km, likely due to fog, mist, or precipitation. Special VFR or an IFR clearance may be required. The ceiling is 2800 feet AGL (overcast), placing conditions in the MVFR category.

Temperature & Moisture

Temperature is 12°C (54°F) with a dewpoint of 8°C. The narrow temperature-dewpoint spread suggests high humidity and potential for visibility restrictions, especially during cooling periods.

Forecast Outlook

The TAF forecast covers the next 24 hours. Conditions are expected to fluctuate between VFR and MVFR. VFR pilots should be prepared for deteriorating conditions. Expected weather includes: Light Showers Rain, Mist.

Pilot Recommendations

Current conditions require an instrument rating, IFR-equipped aircraft, and an IFR clearance. Check approach minimums carefully as conditions may be below CAT I ILS minimums.

This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.

QNH
1010 hPa
Sea Level Pressure
For altitude above MSL
QFE
960 hPa
Field Pressure
Height above aerodrome (1,503 ft)
Pressure Alt
1,601 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 1,602 ft
ISA Deviation: +0.0°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KAOO 190532Z 1906/2006 31012G20KT 6SM -SHRA BR OVC015 FM191000 30012G20KT P6SM OVC035 FM191400 30016G25KT P6SM BKN040 FM192300 29010KT P6SM BKN100 FM200400 26007KT P6SM OVC025
Upcoming Changes (Next 12 Hours)
06:14Z BASE
+0h
MVFR 310° 12 kt
Visibility: 6SM
Ceiling: 1,500 ft
Light Showers Rain, Mist
10:00Z FM191000
+4h
VFR 300° 12 kt
Visibility: >6SM
Ceiling: 3,500 ft
14:00Z FM191400
+8h
VFR 300° 16 kt
Visibility: >6SM
Ceiling: 4,000 ft

24-Hour Weather Evolution

Loading weather data...
Data Sources
  • • Current conditions from METAR observations
  • • Historical data from past 24 hours
  • • No forecast or predicted data included
  • • Data updated with each new METAR report
Chart Features
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Note: Future values beyond current TAF validity are estimates based on climatological data and trends. Always verify with current forecasts before flight operations.

Airport Runway Layout

N
AOO
03
21
12
30 ✈️

Runway Information

Runway Length Width Surface Heading Wind Component
03/21 5,466 ft 100 ft ASP 16°
6.7 kt 9.9 kt
56° angle
✈️ 12/30
Active: 30
3,668 ft 75 ft ASP 108°
11.3 kt 4.1 kt
20° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KAOO

6,628 observations | Sep 2025 - Apr 2026

Flight Rules Distribution

VFR
63.7%
MVFR
25.3%
IFR
6.3%
LIFR
4.6%

Altoona Blair County Airport typically experiences VFR conditions 63.7% of the time, though instrument-rated pilots will find IFR weather present approximately 10.9% of observations. Prevailing winds are from the W averaging 9.1 knots, with gusts recorded up to 31 knots. Calm conditions occur 19.4% of the time. Temperature extremes range from -20°C to 29°C, reflecting significant seasonal variation. The best months for VFR flying are April, September, October.

Wind Analysis

Prevailing Direction: W (270°)
Average Speed: 9.1 kt
Maximum Recorded: 31 kt
Calm Winds: 19.4%
Direction Distribution:
N
5.5%
NE
4.5%
E
3.3%
SE
4.1%
S
14.1%
SW
11.9%
W
21.7%
NW
15.6%

Temperature Range

Average: 4.1°C
Range: -20°C to 29°C
-20°C 29°C

Visibility

Average: 8.8 SM
Below 3 SM: 3.5%
Fog Frequency: 3.5%

Best Months for VFR

April September October

Runway Wind Analysis

Runway 03/21
Favorable wind: 100%
Avg crosswind: 6.6 kt
Runway 12/30
Favorable wind: 100%
Avg crosswind: 4.8 kt

Statistics computed from 6,628 METAR observations (Sep 2025 - Apr 2026). Data sourced from official aviation weather services. Updated daily.

Altoona Blair County Airport - Airport Information

Airport Details

ICAO Code: KAOO
IATA Code: AOO
Type: medium airport
Status: active
Elevation: 1,503 ft MSL

Location

City: Altoona
Country: US
Latitude: 40.296398°
Longitude: -78.320000°
Time Zone: Etc/GMT+5

Runway Information

Runway 03/21
Length: 5,466 ft
Width: 100 ft
Surface: ASP
ILS: No
Runway 12/30
Length: 3,668 ft
Width: 75 ft
Surface: ASP
ILS: No

About Altoona Blair County Airport

Overview

Altoona Blair County Airport serves as a medium-sized airport located in central Pennsylvania, situated at an elevation of 1,503 feet MSL. The airport provides aviation services to the Altoona metropolitan area, supporting both general aviation and potential regional commercial operations. Its strategic location and dual-runway configuration offer flexibility for aircraft operations in the region.

Flying Conditions

Pilots can expect predominantly favorable VFR conditions at this airport, with 64% of observations reporting visual flight rules. Seasonal temperature variations are significant, ranging from -19°C to 29°C, which can impact aircraft performance and operational considerations. Wind patterns are predominantly westerly at 270° with an average speed of 9.1 knots, and calm conditions occur 21.9% of the time.

Notable Features

Both runways (03/21 and 12/30) are asphalt-surfaced with substantial lengths of 5,466 and 3,668 feet respectively. The airport demonstrates excellent wind alignment, with both runways showing 100% favorable wind conditions and relatively low average crosswind speeds (6.6 knots for 03/21 and 4.9 knots for 12/30). September, October, and November represent the most consistent VFR flying months.

Approach Considerations

Visibility averages 8.9 statute miles, with only 2.9% of observations showing visibility below 3 miles and 2.7% experiencing fog conditions. Pilots should be prepared for potential reduced visibility, particularly during seasonal transitions. The dual-runway configuration provides operational flexibility, allowing selection of the most wind-aligned runway based on current conditions.

Data Sources & Accuracy: Airport information sourced from OurAirports.com, a collaborative database of worldwide airport data. Weather data from official aviation weather services including NOAA Aviation Weather Center and international METAR/TAF providers. Information is updated regularly but pilots should always verify current conditions and NOTAMs through official channels before flight operations.

Official Data Sources

Weather NOAA Aviation Weather Center • International METAR/TAF Network
Airports OurAirports.com • Public domain airport database
NOTAMs FAA NOTAM System • ICAO NOTAM Distribution
Last updated: Jan 1, 1970 12:00 AM UTC

Disclaimer: Data is provided for informational purposes only. Pilots must verify all information through official sources before flight operations. Weather conditions change rapidly; always obtain a current briefing from approved weather services.