WVFR35 LFPW 051000 LFRR SIGMET A01 VALID 051000/051010 LFPW- LFRR BREST FIR/UIR TEST VA ERUPTION MT UNKNOWN SOURCE PSN N0000 W00000 VA CLD FCST SE OF LINE N4915 W00700 - N4730 W00800 SFC/FL300 WKN FCST AT 1010Z SE OF LINE N4945 W00300 - N4430 W00615=