Mayon volcano eruption with ash cloud reported; no routes affected.

B1841/26

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WxWeather Warnings

2026-05-01 07:48 - 2026-05-02 06:04

Duration:VERY SHORT22 hours

Period of Applicability

2026-05-01 07:48 - 2026-05-02 06:04

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Interpretation

Significant volcanic activity due to eruption of Mayon volcano at 2605010604. Ash cloud extends 328 ft (100 m) above the crater, drifting west. No air routes or route portions are affected, and forecasts for +6, +12 and +18 hours are not available.

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Raw NOTAM

B1841/26 NOTAMR B1835/26
Q) RPHI/QWWLW/IV/NBO/W /000/110/1315N12341E999
A) RPHI B) 2605010748 C) 2605020604EST
E) ERUPTION OF VOLCANO MAYON (CAVW 0703-03) 1315N 12341E PHILIPPINES
DATE AND TIME OF ERUPTION: 2605010604
EXISTENCE AND HORIZONTAL/VER EXTENT OF VA CLD: 328FT (100M)
ABV CRATER
DIRECTION OF MOV OF ASH CLD: GRAYISH, WEST DRIFT
OBS VA DTG: 01/0610
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL090
090/16KT
FCST VA CLD +6 HR: NOT AVBL
FCST VA CLD +12 HR: NOT AVBL
FCST VA CLD +18 HR: NOT AVBL
AIR RTE OR PORTIONS OF AIR RTE AND FL AFFECTED: NONE, FL090
SOURCE OF INFO: PHIVOLCS VONA, TOKYO VAAC
RMK: WITH VISUAL OBS, WITH SEISMIC AND INFRASOUND SGL.
F) SFC G) FL110

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