Overview
- The city’s risk-management agency forecast probable ash fall in the two boroughs within about six hours after Monday afternoon emissions.
- Monitoring indicated water vapor and volcanic ash, with satellite and webcam observations guiding the advisory.
- The Washington VAAC reported an ash emission at 16:27 local time, confirming activity consistent with the forecast.
- SkyAlert tracked a sequence of ash emissions starting around 13:00 with dispersion toward Estado de México and Puebla, noting Yellow Phase 2 with a 12 km exclusion zone.
- Authorities urged residents to cover water stores, protect nose and mouth, avoid outdoor activity, seal openings, sweep and bag ash, cover drains and vehicles, and keep pets indoors.