3h. 9 distritos sob aviso amarelo por causa de queda de neve
Context & Explainers
Aviso amarelo (yellow warning) is the second level in Portugal's weather-alert system issued by the Instituto Português do Mar e da Atmosfera (IPMA) to signal potentially dangerous conditions like heavy snow or rough seas. When districts are under aviso amarelo, expect travel disruption and take precautions—drivers, boaters and coastal residents in the affected areas should be especially alert.
A yellow warning is the lowest alert level in IPMA's four-tier color-coded weather warning system (green → yellow → orange → red). It signals weather conditions that are potentially dangerous but not unusual for the region and season.
Yellow warnings are issued for moderate rainfall, gusty winds (typically 60–90 km/h), moderate heat, or waves above 4 meters. They are district-specific and time-limited. While they do not typically require emergency measures, they indicate conditions that could cause localized disruption — slower traffic, minor flooding in low-lying areas, or isolated power outages.
When a yellow warning is active, residents should take common-sense precautions: secure outdoor furniture, allow extra travel time, and stay informed via IPMA and ANEPC updates. Yellow warnings can be upgraded to orange or red if conditions worsen.
