IFR weather

IFR weather

[¦ī¦ef′är ′weth·ər]
(meteorology)
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References in periodicals archive ?
Approximately one hour had been spent in mostly IFR weather.
Due to the IFR weather covering the eastern half of the country, our three aircraft would go as singles separated by 15 minutes to our first stop in Missouri.
operated during night, IFR weather conditions and known icing.