FVXX23 KNES 191858
VA ADVISORY
DTG: 20180919/1858Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT (5426 M)

ADVISORY NR: 2018/343

INFO SOURCE: GOES-EAST. MEXICO CITY MWO.
RADIOSONDE. NWP MODELS. HYSPLIT. CIMSS VOLCAT.
VOLCANO WEB CAMERA. 

ERUPTION DETAILS: ONGOING ERUPTION.

OBS VA DTG: 19/1842Z

OBS VA CLD: SFC/FL170 N1907 W09830 - N1905 W09825
- N1855 W09828 - N1858 W09833 - N1907 W09830 MOV
SE 5KT SFC/FL230 N1959 W09810 - N1935 W09808 -
N1906 W09825 - N1913 W09847 - N1927 W09851 -
N1951 W09838 - N1959 W09810 MOV W 5-10KT
SFC/FL300 N1914 W09847 - N1908 W09831 - N1856
W09832 - N1852 W09840 - N1853 W09852 - N1909
W09854 - N1914 W09847 MOV W 5-10KT 

FCST VA CLD +6HR: 20/0030Z SFC/FL170 NO ASH
EXPSFC/FL230 N2031 W09759 - N2029 W09744 - N1954
W09746 - N1904 W09836 - N1926 W09854 - N2031
W09759 SFC/FL300 N1926 W09855 - N1902 W09837 -
N1833 W09910 - N1915 W09909 - N1926 W09855 

FCST VA CLD +12HR: 20/0630Z SFC/FL230 N2045
W09835 - N2033 W09813 - N2044 W09738 - N1904
W09835 - N1931 W09849 - N2007 W09823 - N2045
W09835 SFC/FL300 N1935 W09852 - N1904 W09838 -
N1822 W09925 - N1759 W10035 - N1914 W09922 -
N1935 W09852 

FCST VA CLD +18HR: 20/1230Z SFC/FL230 N2043
W09807 - N2007 W09814 - N1928 W09840 - N1943
W09848 - N2007 W09829 - N2041 W09835 - N2043
W09807 SFC/FL300 N1941 W09905 - N1911 W09854 -
N1804 W10104 - N1853 W10022 - N1941 W09905 

RMK: VA FM ERUPTION OUT TO 65NM NNW OF SUMMIT. VA
NE OF SUMMIT DRIFTING TOWARD NNE. SMALL AREA OF
VA 8NM E OF SUMMIT DRIFTING SSE. VA NEAR SUMMIT
DRIFTING WSW. ALL FCSTS BASED ON HYSPLIT AND NWP 
MDLS, WHICH INDICATE SLGT INCR IN WIND SPEED. 
CURRENT VA HGT INFERRED FROM MMMX SOUNDING. 
...HOSLEY

NXT ADVISORY: WILL BE ISSUED BY 20180920/0100Z
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