CYYL — Lynn Lake Airport

fog forecast & climatology · Lynn Lake city page · full 10-year analysis →
Fog unlikely through Saturday (peak 3%). September typically brings about 8 hours of dense fog here.forecast cycle 2026-09-04T13:00:00Z · page rebuilt daily · live layers below update hourly

Fog hours per year
43 h below CAT I minima (2016–2026 average)
Fog season
September and October
Typical fog event
~1 h once it forms (middle half 1–3 h, n=187)
Data through
2026-08-15 · machine-readable data.json

When this airport fogs in

In a typical year Lynn Lake Airport spends 43 hours below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), concentrated in September and October. The strip above shows the hour-by-hour pattern for the current month from ten years of weather observations.

Fog season

January: ~2 hJanFebruary: ~1 hFebMarch: ~3 hMarApril: ~2 hAprMay: ~1 hMayJune: ~3 hJunJuly: ~6 hJulAugust: ~7 hAugSeptember: ~8 hSepOctober: ~7 hOctNovember: ~3 hNovDecember: ~3 hDec
Fog season is January, March, April, June, July, August, September, October, November, December, peaking in September; fog is mostly a 5 AM–10 AM phenomenon; typically thinning out by 1 PM; a typical event lasts about 1 hour once it forms local time · 10-yr average

For flight operations

EFVS crews: the CHASE board ranks airports by live fog status, approach lighting, go-around height and flight time from your base. Forecast probabilities publish here per-airport once the calibrated model beats climatology on live verification — receipts on the scorecard. Methodology.

Sources: NOAA/NWS National Blend of Models guidance · METAR observations 2016–2026 (Iowa Environmental Mesonet) · FAA NASR. Machine access: data.json · llms.txt. Not for operational use.