EXCESSIVE RAINFALL DISCUSSION NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD 117 AM EDT WED APR 28 2010 ...VALID 06Z WED APR 28 2010 - 12Z THU APR 29 2010... ...REFERENCE AWIPS GRAPHIC UNDER...DAY 1 EXCESSIVE RAINFALL... NO ORGANIZED AREAS OF RAINFALL EXCEEDING FLASH FLOOD GUIDANCE ARE EXPECTED. ECKERT $$