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Popocatépetl Volcano Volcanic Ash Advisory: ONGOING VA EMS to 21000 ft (6400 m)

Mon, 29 Jul 2019, 02:30 | BY: VN
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 21000 ft (6400 m) altitude or flight level 210 and is moving at 1-15 kts in W direction.
The full report is as follows:

FVXX20 at 02:17 UTC, 29/07/19 from KNES
VA ADVISORY
DTG: 20190729/0215Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426 M]

ADVISORY NR: 2019/624

INFO SOURCE: GOES-EAST. WEB CAM. NWP MODELS.
VOLCAT.

ERUPTION DETAILS: ONGOING VA EMS

OBS VA DTG: 29/0156Z

OBS VA CLD: SFC/FL210 N1911 W09905 - N1903 W09837
- N1859 W09836 - N1855 W09911 - N1904 W09916 -
N1911 W09905 MOV W 1-15KT

FCST VA CLD +6HR: 29/0800Z SFC/FL210 N1913 W09916
- N1902 W09837 - N1859 W09835 - N1851 W09916 -
N1856 W09931 - N1905 W09930 - N1913 W09916

FCST VA CLD +12HR: 29/1400Z SFC/FL210 N1917
W09920 - N1901 W09836 - N1859 W09836 - N1855
W09923 - N1907 W09928 - N1917 W09920

FCST VA CLD +18HR: 29/2000Z SFC/FL210 N1920
W09917 - N1902 W09837 - N1859 W09837 - N1854
W09922 - N1904 W09931 - N1913 W09929 - N1920
W09917

RMK: VA EM VISIBLE IN STLT IMAGERY MOV W FM
SUMMIT FL210. DVLPG WX CL IN AREA, FULL EXTENT OF
VA CLD UNKNOWN. T+6,12,18 BASED NWP MODEL
GUIDANCE. ...BOLL

NXT ADVISORY: WILL BE ISSUED BY 20190729/0815Z

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Background:

Volcán Popocatépetl, whose name is the Aztec word for smoking mountain, towers to 5426 m 70 km SE of Mexico City to form North America's 2nd-highest volcano.  The glacier-clad stratovolcano contains a steep-walled, 250-450 m deep crater.  The generally symmetrical volcano is modified by the sharp-peaked Ventorrillo on the NW, a remnant of an earlier volcano. 
At least three previous major cones were destroyed by gravitational failure during the Pleistocene, producing massive debris-avalanche deposits covering broad areas south of the volcano.  The modern volcano was constructed to the south of the late-Pleistocene to Holocene El Fraile cone.  Three major plinian eruptions, the most recent of which took place about 800 AD, have occurred from Popocatépetl since the mid Holocene, accompanied by pyroclastic flows and voluminous lahars that swept basins below the volcano.  Frequent historical eruptions, first recorded in Aztec codices, have occurred since precolumbian time.


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Source: GVP, Smithsonian Institution - Popocatepetl information


Satellite images of Popocatepetl volcano (c)Google Earth View
Satellite images of Popocatepetl volcano (c)Google Earth View
Stratovolcano 5426 m / 17,802 ft
Central Mexico, 19.02°N / -98.62°W
Current status: erupting (4 out of 5) Popocatépetl volcano eruptions:
1345-47, 1354, 1363(?), 1488, 1504, 1509(?), 1512, 1518, 1519-23(?), 1528, 1530, 1539-40, 1542, 1548, 1571, 1580, 1590, 1592-94, 1642, 1663-65, 1666-67, 1697, 1720, 1802-04, 1827(?), 1834(?), 1852(?), 1919-22, 1923-24, 1925-27(?), 1933, 1942-43, 1947, 1994-95, 1996-2003, 2004-ongoing
Typical eruption style
Dominantly explosive, construction of lava domes. Plinian eruptions at intervals of several centuries or few thousands of years, vulcanian and strombolian activity in intermittent phases.
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