WVCA31 MPTO 021600 MPZL SIGMET 03 VALID 021600/022200 MPTO- MPZL PANAMA FIR VA CLD FCST 1800 UTC WI N04W77/N15W83 RMK: THIS IS ONLY A VAA TEST EXERCISE PLEASE DISREGARD FCST 20121202/2200 UTC=