Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 19000 ft (5800 m) altitude or flight level 190 and is moving at 10 kts in SE direction.
The full report is as follows:
FVXX21 at 19:36 UTC, 29/01/26 from KNES
VA ADVISORY
DTG: 20260129/1935Z
VAAC: WASHINGTON
VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837
AREA: MEXICO
SUMMIT ELEV: 5393M
ADVISORY NR: 2026/0046
INFO SOURCE: GOES-19,WEBCAMS,NWP MODELS
AVIATION COLOUR CODE: NOT GIVEN
ERUPTION DETAILS: NEW VA EMISSIONS
OBS VA DTG: 29/1926Z
OBS VA CLD: SFC/FL190 N1903 W09840 – N1905 W09837 – N1853 W09818 –
N1846 W09825 – N1903 W09840 MOV SE 10KT
FCST VA CLD +6 HR: 30/0115Z SFC/FL190 N1903 W09840 – N1905 W09837 –
N1853 W09818 – N1846 W09825 – N1903 W09840
FCST VA CLD +12 HR: NO VA EXP
FCST VA CLD +18 HR: NO VA EXP
RMK: VAAC MONTREAL IS ISSUING THIS ADVISORY ON BEHALF OF VAAC
WASHINGTON. LIGHT VA EMS OBSERVED IN WEBCAM AND SAT IMG EXTENDING
APPROX 20 NM FROM SUMMIT. EMS LIKELY TO CONTINUE SE MVMT THRU T+6.
NXT ADVISORY: WILL BE ISSUED BY 20260130/0135Z