FVXX21 KWBC 221610
VOLCANIC ASH ADVISORY
ISSUED: 2003FEB22/1610Z VAAC: WASHINGTON
 
VOLCANO: POPOCATEPETL 1401-09
LOCATION: N1901W09837    AREA: MEXICO
 
SUMMIT ELEVATION: 17930 FT (5465 M)

ADVISORY NUMBER: 2003/044

INFORMATION SOURCE: GOES-8 IMAGERY. GFS MODEL WINDS FORECAST.
UPPER AIR SOUNDING.
  
ERUPTION DETAILS: NEW EXHALATION ABOUT 22/0835Z.

OBS ASH DATE/TIME: 22/1515Z

OBS ASH CLOUD: SFC/FL350 29NM WIDE LINE OF ASH EXTENDING BETWEEN
N2646W08142 N2401W08304 MOVING NE 70-80 KNOTS.  SFC/FL250 20 NM
WIDE LINE OF ASH EXTENDING BETWEEN N2227W08344 N2036W08444 MOVING
NE 50 KNOTS. SFC/FL310 69 NM WIDE LINE OF ASH EXTENDING BETWEEN
N2108W09112 N1951W09156 MOVING E 70 KNOTS. 

FCST ASH CLOUD +6H: SEE SIGMETS AND VAFTAD.

REMARKS: ASH IN THE SOUTHEAST GULF OF MEXICO AND NORTHWEST
CARIBBEAN SEA WAS BECOMING DIFFUSE IN SATELLITE IMAGERY THROUGH
1515Z.  THE PLUME EXTENDING FROM FLORIDA INTO THE GULF OF MEXICO
WAS ESTIMATED TO BE BETWEEN FL300 AND FL350 AND WAS 176 NM LONG. 
A 125 NM LONG PLUME ESTIMATED TO BE NEAR FL250 EXTENDED FROM
WESTERN CUBA INTO THE NORTHWEST CARIBBEAN SEA.  ASH IN THE BAY OF
CAMPECHE WAS DISSIPATING RAPIDLY.  MODEL WIND DATA CONTINUE TO
SHOW UNIDIRECTIONAL FLOW THROUGH MUCH OF THE TROPOSPHERE MAKING A
PRECISE DETERMINATION OF ASH TOP HEIGHT EXCEEDINGLY DIFFICULT. 
TURK
      
TO OBTAIN VAA FROM THE WASHINGTON VAAC EMAIL NOTIFICATION SEE THE
WEB PAGE http://www.ssd.noaa.gov/VAAC/subscribe.html(ALL LETTERS
IN ADDRESS ARE IN LOWER CASE EXCEPT VAAC).  THE WASHINGTON VAAC
WILL MAKE EVERY EFFORT TO KEEP THE EMAIL NOTIFICATION UP AND
RUNNING.  HOWEVER IT IS NOT CONSIDERED AN OFFICIAL METHOD OF
DISTRIBUTION.

NEXT ADVISORY: WILL BE ISSUED BY 2003FEB22/1900Z.

NNNN"Attached Graphic Map Depicting Ash Only" 

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