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What Is a SPECI and When Is It Issued?

Pilot Institute

Expect poor visibility, increased turbulence, and slippery runway surfaces. 011955Z : The date and time of issuance (first day of the month at 19:55 UTC). OVC010CB : Overcast layer of cumulonimbus clouds at 1,000 feet AGL. In this example, you should watch out for an overcast layer (ceiling) of cumulonimbus clouds 1,000 ft AGL.

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How to Read METAR and TAF Reports

Pilot Institute

m/s) Visibility: 9999 6 or more sm (10+ km) Weather: VCSH VCSH (showers in the vicinity) Clouds: SCT010 BKN030 OVC060 Scattered clouds at 1000 feet AGL, broken clouds at 3000 feet AGL, overcast cloud deck at 6000 feet AGL Ceiling: BKN030 3000 feet AGL Icing: 620509 Light rime in clouds from 5000 to 14000 feet AGL 1.