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Popocatépetl Volcano Volcanic Ash Advisory: VA EM OBS IN SAT. to 20000 ft (6100 m)

Sun, 23 Aug 2020, 01:45 | BY: VN
Satellite image of Popocatépetl volcano on 23 Aug 2020
Satellite image of Popocatépetl volcano on 23 Aug 2020
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 .
The full report is as follows:

FVXX21 at 01:30 UTC, 23/08/20 from KNES
VA ADVISORY
DTG: 20200823/0128Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426 M]

ADVISORY NR: 2020/793

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

ERUPTION DETAILS: VA EM OBS IN SAT.

OBS VA DTG: 23/0121Z

OBS VA CLD: SFC/FL200 N1903 W09838 - N1902 W09836
- N1859 W09829 - N1856 W09840 - N1903 W09838 MOV
S 5-10KT

FCST VA CLD +6HR: 23/0730Z SFC/FL200 N1904 W09836
- N1857 W09823 - N1855 W09848 - N1904 W09838 -
N1904 W09836

FCST VA CLD +12HR: 23/1330Z NO VA EXP

FCST VA CLD +18HR: 23/1930Z NO VA EXP

RMK: VA CLD OBS IN SAT IMAGERY DRIFTING INVOF
SUMMIT. OBS VA FL BASED ON VOLCAT ALERT WITH
LOWER CONFIDENCE. LGT AND VRBL FL WINDS EXP TO
CONT THRU T+6 WHICH ALSO LOWERS FCST CONFIDENCE.
...CLARK

NXT ADVISORY: WILL BE ISSUED BY 20200823/0730Z

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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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