PROBABILISTIC HEAVY SNOW AND ICING DISCUSSION NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD 247 PM EDT FRI MAY 15 2009 VALID 00Z SAT MAY 16 2009 - 00Z TUE MAY 19 2009 DAYS 1-3... THE PROBABILITY OF SIGNIFICANT ICING AND/OR HEAVY SNOW IS LESS THAN 10 PERCENT. VOJTESAK