WSEG31 HECA 170500 HECC SIGMET 02 VALID 170600/170900 HECA- HECC CAIRO FIR SEV TURB FCST WI N3248 E02439 - N3308 E03052 - N3344 E02946 - N3404 E02716 - N3404 E02406 FL230/360 MOV E NC=