FVXX20 KWBC 070531 VOLCANIC ASH ADVISORY ISSUED: 2003FEB07/0600Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915M) ADVISORY NUMBER: 2003/143 INFORMATION SOURCE: GOES-8 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: CONTINUING ASH AND STEAM EMISSIONS. OBS ASH DATE/TIME: 07/0015Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL070 MOVING W AT 20-25 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: SINCE THE PREVIOUS ADVISORY AT 0030Z...THE HOTSPOT HAS DIMMED AND IS NO LONGER EVIDENT ON THE 3.9 MICRON IR CHANNEL. BUT WITH THE HIGH LEVEL OF ACTIVITY AT SOUFRIERE HILLS OVER THE PAST TWO MONTHS...WILL CONTINUE TO ADVISE UNTIL VISIBLE IMAGERY CAN CONFIRM THAT EVEN SMALL AMOUNTS OF LOW LEVEL ASH ARE NOT PRESENT IN THE AREA. SO WITH THIS PACKAGE THE FOCUS IS ON WIND SPEED AND DIRECTION IN CASE THERE IS LOW LEVEL ACTIVITY WHICH MAY STILL BE PRESENT AT THIS TIME BUT IS NOT DETECTABLE ON IR OR MULTI-SPECTRAL IMAGERY. WINDS ARE STILL MOVING WEST AT 20 TO 25 KNOTS...GALLINA NEXT ADVISORY: WILL BE ISSUED BY 2003FEB07/1200Z. NNNN