Alliston Airport

CNY4

Alliston, CA

Last Updated
Jun 10, 01:00Z

No METAR Available for CNY4

Showing weather from nearby airport with METAR data.

Currently using: CYYZ
Weather Source: Toronto Lester B. Pearson International Airport (CYYZ)
Distance: 32nm / 59km from CNY4

Current Weather

Display Units
Recent 42 min ago
01:00Z

🌙 Night
VFR
Flight Rules
23°C
Temperature
Dewpoint: 17°C
4 kt
110°
12 SM
Visibility
13,000 ft
Ceiling
Above Ground Level
1013 hPa
QNH
Altimeter Setting

Raw METAR

METAR CYYZ 100100Z 11004KT 12SM FEW035 BKN130 OVC260 23/17 A2990 RMK CU1AC6CI1 SLP126 DENSITY ALT 1700FT

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 720 ft
FEW 3,500 ft AGL
BKN 13,000 ft AGL
OVC 26,000 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
3,500 ft
AGL (Above Ground)
4,220 ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
13,000 ft
AGL (Above Ground)
13,720 ft AMSL
☁️
OVC
Overcast (8/8 sky coverage)
26,000 ft
AGL (Above Ground)
26,720 ft AMSL

Weather Briefing

VFR

Alliston Airport is currently reporting visual flight rules (VFR) conditions with overcast skies at 26,000 feet and 12 SM visibility.

Wind Analysis

Winds are from the east-southeast (110°) at 4 knots.

Visibility & Ceiling

Visibility is 12 SM. The ceiling is 13000 feet AGL (broken), well above standard VFR minimums.

Temperature & Moisture

Temperature is 23°C (73°F) with a dewpoint of 17°C, indicating moderate moisture conditions.

Forecast Outlook

The TAF forecast covers the next 30 hours. The forecast shows a transition between VFR and IFR conditions. Pilots should monitor the forecast closely and have an alternate airport plan. Expected weather includes: Light Showers Rain, Mist, Heavy Thunderstorm Rain, Mist, Light Drizzle, Mist, Fog, Mist, Light Showers Rain, FCST. Temporary MVFR conditions are forecast with Light Showers Rain, Mist between 00:00Z and 04:00Z. There is a 30% probability of LIFR conditions with Heavy Thunderstorm Rain, Mist between 00:00Z and 04:00Z. Temporary MVFR conditions are forecast with Light Showers Rain, Mist between 04:00Z and 06:00Z.

Pilot Recommendations

Conditions are favorable for visual flight. The forecast indicates conditions may deteriorate. Ensure you have fuel reserves and a viable alternate airport.

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

QNH
1013 hPa
Sea Level Pressure
For altitude above MSL
QFE
989 hPa
Field Pressure
Height above aerodrome (720 ft)
Pressure Alt
728 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 1,861 ft
ISA Deviation: +9.4°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF CYYZ 092340Z 1000/1106 14008KT P6SM SCT030 BKN100 TEMPO 1000/1004 5SM -SHRA BR FEW007 BKN020 OVC080 PROB30 1000/1004 VRB15G25KT 1SM +TSRA BR BKN007 OVC030CB FM100400 15008KT P6SM SCT020 BKN040 TEMPO 1004/1006 4SM VCTS -SHRA BR BKN020 OVC040CB FM100600 14005KT 2SM -SHRA BR BKN005 OVC030 PROB40 1006/1010 3/4SM -DZ BR OVC003 FM101000 15005KT 3/4SM -DZ BR OVC003 PROB30 1010/1012 3/8SM FG VV002 FM101200 17005KT 6SM BR BKN004 OVC020 BECMG 1012/1014 P6SM NSW FEW008 OVC025 FM101400 20008KT P6SM -SHRA BKN025 OVC060 BECMG 1016/1018 26010G20KT FM101900 26010G20KT P6SM BKN030 FM102100 28012G22KT P6SM SCT040 BECMG 1022/1024 26008KT RMK NXT FCST BY 100300Z
Upcoming Changes (Next 12 Hours)
01:42Z BASE
+0h
VFR 140° 8 kt
Visibility: >6SM
Ceiling: 10,000 ft
04:00Z FM100400
+3h
VFR 150° 8 kt
Visibility: >6SM
Ceiling: 4,000 ft
04:00Z TEMPO
+3h
MVFR
Visibility: 4SM
Ceiling: 2,000 ft
Light Showers Rain, Mist
06:00Z FM100600
+5h
IFR 140° 5 kt
Visibility: 2SM
Ceiling: 500 ft
Light Showers Rain, Mist

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
NY4
18
36 ✈️

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 18/36
Active: 36
2,300 ft 50 ft TURF/SNOW
1.4 kt 3.8 kt
110° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Alliston Airport - Airport Information

Airport Details

ICAO Code: CNY4
Type: small airport
Status: active
Elevation: 720 ft MSL

Location

City: Alliston
Country: CA
Latitude: 44.183300°
Longitude: -79.837097°
Time Zone: Etc/GMT+5

Runway Information

Runway 18/36
Length: 2,300 ft
Width: 50 ft
Surface: TURF/SNOW
ILS: No

About Alliston Airport

Alliston Airport (CNY4) is located in Alliston, CA at an elevation of 720 feet MSL. The airport has 1 runway (18/36), with the longest at 2,300 feet.

Airport Overview

Alliston Airport serves Alliston in CA. As a smaller airfield, services may be limited. Pilots should verify fuel availability and operating hours before arrival. The airport features 1 runway (18/36) with turf/snow surface. The longest runway measures 2,300 feet, best suited for light aircraft with appropriate short-field capability.

Flight Planning

For current NOTAMs and operational information, consult the local aviation authority publications. Weather data including METAR and TAF reports are typically available from nearby reporting stations if not directly from this airport. Before flight, verify current conditions through official channels and check appropriate aeronautical charts for the latest aeronautical information.

Weather Information

When METAR observations are not available directly from CNY4, pilots can reference weather from nearby airports shown above. Consider distance and terrain differences when using alternate weather sources. For official flight planning, always use approved weather briefing services.

Data Sources: Airport data from OurAirports.com. Pilots should always verify current conditions through official channels before flight.

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.