FVXX22 KWBC 210800COR
VOLCANIC ASH ADVISORY STATEMENT...CORRECTION 
ISSUED 0810 UTC 21 MAR 2000 BY THE WASHINGTON VAAC
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CORRECTION TO WIDTH OF SECOND ASH AREA FROM 57KM TO 106KM
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SOUFRIERE HILLS 00-038          WEST INDIES 1643N 6211W  
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BACKGROUND:    SOUFRIERE HILLS  MONTSERRAT (1600-05)
               SUMMIT HEIGHT  3000 FT (915M)
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SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL
IMAGERY. 21/0000 UTC UPPER AIR SOUNDING FROM GUADELOUPE.
MONTSERRAT VOLCANO OBSERVATORY REPORT.
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ERUPTION DETAILS: MAJOR ERUPTION BEGINNING 20/2340 UTC WITH
ANOTHER ERUPTION STARTING AROUND 21/0530 UTC. 
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DETAILS OF ASH CLOUD: IN THE FIRST IMAGERY AFTER THE ECLIPSE
AT 0645 UTC NO VOLCANIC CLOUD CAN BE DETECTED FROM THE
REPORTED 0530 UTC ERUPTION. FROM THE 2340 UTC ERUPTION... THE
LOWER LEVEL ASH CLOUD (BELOW FL090) THAT WAS FANNING OUT TO
THE NORTH...WEST AND SOUTH CAN NO LONGER BE DETECTED IN NIGHT
TIME IMAGERY BUT MAY STILL EXIST AND BECOME DETECTABLE IN THE
FIRST VISIBLE IMAGERY LATER THIS MORNING.  THE HIGHER LEVEL
ASH AND STEAM CLOUD HAS BECOME VERY FAINT WITH 2 AREAS OF MORE
DISTINCT ASH.  THE FIRST ASH AREA IS ROUGHLY 95 KM (51 NMI)
WIDE BETWEEN POINTS 1601N 5544W AND 1440N 5844W AND THE SECOND
IS AROUND 106 KM (57NMI) WIDE BETWEEN POINTS 1626N 5346W AND
1545N 5343W. THE GENERAL VERY FAINT AREA OF ASH AND STEAM IS
BOUNDED BY POINTS 1646N 6143W  1347N 5936W  1557N 5254W  1634N
5310W 1636N 5738W  1730N 6027W. THE ESTIMATED HEIGHT IS AROUND
FL300. 
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST ASH TO FL300 TO MOVE
EAST SOUTHEAST AT 25 TO 60 KNOTS. ASH BELOW FL090 WILL MOVE
MAINLY WEST AROUND 10 KNOTS  
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OUTLOOK:  SEE LATEST SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 21/1400 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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NNNN"Attached Graphic Map Depicting Ash" 

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