FVXX20 KWBC 070500
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0459 UTC 07 AUGUST 1999 BY THE WASHINGTON VAAC
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CERRO NEGRO 99-003 NICARAGUA 12.5N 86.7W
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BACKGROUND: CERRO NEGRO NICARAGUA (1404-07)
SUMMIT HEIGHT 2214 FT (675M)
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SOURCES OF INFORMATION: NEWS MEDIA REPORTS AND GOES-8 SATELLITE
IMAGERY AND INETER IN MANAGUA NICARAGUA.
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ERUPTION DETAILS: ERUPTIONS HAVE BEEN OCCURRING SINCE 05/1600 UTC.
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DETAILS OF ASH CLOUD: NO ASH IS VISIBLE IN CURRENT SATELLITE IMAGERY
THROUGH 07/2215 UTC. A HOT SPOT WAS OCCASIONALLY DISCERNIBLE IN GOES
8 NEAR-INFRARED IMAGERY. THERE AREA CURRENTLY THICK METEOROLOGICAL
CLOUDS IN THE AREA OF THE VOLCANO. INFORMATION FROM INETER SUGGESTS
THAT THIS IS PRIMARILY A LAVA EVENT. HOWEVER MEDIA REPORTS INDICATE
THAT YESTERDAY PILOTS NOTED THE PRESENCE OF ASH AT FL220.
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TRAJECTORY: ANY ASH AT FL220 WOULD MOVE TOWARD THE NORTHWEST
AT 15-20 KTS.
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REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC ASH
ADVISORY STATEMENTS OFTEN ACCOMPANIED BY A MAP DEPICTING ASH
LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS
www.ssd.noaa.gov/VAAC/washington.html
(all lower case except /VAAC/)
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OUTLOOK: SEE LATEST SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED AROUND 07/1100 UTC.
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PLEASE REFER TO SIGMETS AND VAFTAD FOR CURRENT WARNINGS.
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