Ted Stevens Anchorage International Airport turbulence forecast
Anchorage, United States
ANC (Anchorage, United States) sits at 61.17°N, 150.00°W, 152 ft elevation — coastal.
About ANC
Major airport serving Anchorage, United States.
- Climate
- Subpolar — long winters, short cool summers
- Geography
- Coastal — marine-influenced airmass
What to expect on departures
Computed from ANC's geography and climate
The jet stream meanders across this latitude seasonally — ANC sees its strongest CAT exposure in December–February, when the polar jet pushes equatorward and routes intersect it more often. June-onwards departures climb into cleaner upper-level flow. ANC's coastal position means departures often transit from the cool marine boundary layer into warmer continental air within minutes of takeoff — a brief but reliable bumpy transition on warm-season afternoons when the sea breeze is set up.
Climbout notes
Climbout typically transitions from cool marine air to warmer continental air — a brief bumpy layer near the boundary is normal on summer afternoons.
Seasonal pattern
Winter (December–February) brings the strongest jet-stream activity — that's when long-haul departures most often log clear-air turbulence at cruise.
- Peak turbulence
- November–February (strong jet)
- Typically calmest
- May–September
Departing from ANC?
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ANC turbulence FAQ
Is turbulence common on flights from ANC?
Ted Stevens Anchorage International Airport is best described as a high-latitude airport. The jet stream meanders across this latitude seasonally — ANC sees its strongest CAT exposure in December–February, when the polar jet pushes equatorward and routes intersect it more often.
When is turbulence worst for Anchorage flights?
Winter (December–February) brings the strongest jet-stream activity — that's when long-haul departures most often log clear-air turbulence at cruise. Peak turbulence window: November–February (strong jet). Typically calmest: May–September.
How accurate are Turbcast forecasts?
We combine live NOAA Aviation Weather Center data (PIREPs, SIGMETs, AIRMETs) with physics-based Ellrod and Richardson-number calculations derived from Open-Meteo pressure-level wind and temperature data. If a source is unavailable for a waypoint we show an em dash rather than invent a number.
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