MESOSCALE PRECIPITATION DISCUSSION 0009 NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 1210 PM EDT FRI MAR 29 2013 AREAS AFFECTED...MD CONCERNING...HEAVY RAINFALL...FLASH FLOODING POSSIBLE VALID 291609Z - 291639Z ...TEST TEST TEST... THERE IS THREAT OF HEAVY RAINFALL FOR THE THREAT AREA... ...THIS IS ONLY A TEST TO TEST TRANSMISSION TO AWIPS... ATTN...WFO...PHI...AKQ...LWX...RNK... LAT...LON 39607614 38417530 37467702 37267838 37837932 39267797 39607614