WVCH31 SCIP 072158 SCIZ SIGMET 04 VALID 072200/080400 SCIP-ISLA DE PASCUA FIR VA ERUPTION MT CORDON CAULLE LOC S4052 W07220 FCST ASH CLD AT 08/0000Z FL200/400: S5730 W13100 - S5600 W12615 - S4315 W12115 - S4600 W11015 - S6130 W11200 - S6500 W12345 S6700 W13100 AND S5730 W13100 STNR NC=