The Telephone Information Briefing Service (TIBS) provided by AFSSs includes

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What is meant by the Special METAR weather observation for KBOI?

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SPECI KBOI 091854Z 32005KT 1 1/2SM RA BR OVC007 17/16 A2990 RMK RAB12

Which chart provides a ready means of locating observed frontal positions and pressure centers?

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The station originating the following METAR observation has a field elevation of 3,500 feet MSL. If the sky cover is one continuous layer, what is the thickness of the cloud layer? (Top of overcast reported at 7,500 feet MSL).

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METAR KHOB 151250Z 17006KT 4SM OVC005 13/11 A2998

What single reference contains information regarding expected a volcanic eruption, that is occurring or expected to occur?

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