ATL82FA140

Prior to departing new bern at 1837 the plt called his office & stated he had received a wx report for scattered thunderstorms along his route of flt. At 2020 & 2052 he contacted atl flt watch for wx advisories. He was advised that the wx radar was out of service but radar summary charts indicated he might encounter rain showers & thunderstorms in the area of toccoa & harris VOR. At 2105 the plt called flt watch again & reported encountering IFR. Flt watch replied they did not have radar available & to contact atl center. The plt did not acknowledge & further attempts to contact the plt were unsuccessful. The acft crashed in a near vertical attitude. At the time the plt contacted flt watchhe was not provided pertinent information from the area forecast for clouds at 2,000-3,000 ft scattered variable broken with a chance of ceilings/visibilities at or below 1,000 ft & 3 mi in thunderstorms with moderate rain showers.