UMIO — Orsha Airport - Balbasovo Air Base

fog forecast & climatology · Orsha city page · full 10-year analysis →
No fog forecast feed exists for this station. September typically brings about 5 hours of dense fog here (10-year average).

Fog hours per year
191 h below CAT I minima (2016–2026 average)
Fog season
June and January
Typical fog event
~2 h once it forms (middle half 1–3 h, n=57)
Data through
2026-08-15 · machine-readable data.json

When this airport fogs in

In a typical year Orsha Airport - Balbasovo Air Base spends 191 hours below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), concentrated in June and January. The strip above shows the hour-by-hour pattern for the current month from ten years of weather observations.

Fog season

January: ~20 hJanFebruary: ~4 hFebMarch: ~9 hMarApril: ~1 hAprMay: ~5 hMayJune: ~95 hJunJuly: ~5 hJulAugust: ~3 hAugSeptember: ~5 hSepOctober: ~17 hOctNovember: ~8 hNovDecember: ~2 hDec
Fog season is June, peaking in June; fog is mostly a midnight–2 AM phenomenon; typically thinning out by 3 AM; a typical event lasts about 2 hours 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.