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Popocatépetl Volcano Volcanic Ash Advisory: CONS VA EMS SEEN IN SAT. to 23000 ft (7000 m)

Fri, 31 Jul 2020, 10:00 | BY: VN
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 23000 ft (7000 m) altitude or flight level 230 and is moving at 10-15 kts in NW direction.
The full report is as follows:

FVXX24 at 09:49 UTC, 31/07/20 from KNES
VA ADVISORY
DTG: 20200731/0946Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426 M]

ADVISORY NR: 2020/742

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

ERUPTION DETAILS: CONS VA EMS SEEN IN SAT.

OBS VA DTG: 31/0931Z

OBS VA CLD: SFC/FL230 N1919 W09903 - N1905 W09837
- N1858 W09838 - N1856 W09951 - N1910 W09950 -
N1919 W09903 MOV NW 10-15KT

FCST VA CLD +6HR: 31/1530Z SFC/FL230 N1922 W10016
- N1905 W09837 - N1859 W09837 - N1849 W10015 -
N1922 W10016

FCST VA CLD +12HR: 31/2130Z SFC/FL230 N1907
W10017 - N1904 W09837 - N1859 W09837 - N1840
W10015 - N1907 W10017

FCST VA CLD +18HR: 01/0330Z SFC/FL230 N1911
W10017 - N1905 W09837 - N1859 W09836 - N1844
W10015 - N1911 W10017

RMK: THICKER VA SEEN IN SAT IMAGERY MOV WNW AND
EXTDG NEARLY 55 FM SUMMIT. RESIDUAL THINNER VA
SEEN W/WSW OF VOLCANO AND BCMG MORE DIFFICULT TO
SEE AND ARND 110 NM FM SUMMIT. VA EMS SEEN IN WEB
CAM. MODEL GUIDANCE SHOWS A W-LY MOV TO CONT THRU
T+18 HRS. ...KIBLER

NXT ADVISORY: WILL BE ISSUED BY 20200731/1545Z

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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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