000 FAUS21 KZDC 181727 ZDC1 CWA 181725 ZDC CWA 101 VALID UNTIL 181830 FROM 18SE CSN-31E DCA DEVELOPING LINE TSRA 15NM WIDE. TOPS TO FL380 MOVG E 15KT. VERY HEAVY RAIN AND SMALL HAIL LIKELY. IMPACTS J42 J37 SWANN PALEO. =