The Lombardy Region has issued a yellow alert for thunderstorm risk from 2.00 pm on 02.06.2024 to 06.00 am on 03.06.2024
In the second part of the day on 02/06, unstable conditions are expected in the region, determined by the transit of a trough with associated colder air at high altitude. Precipitation is expected from the early afternoon hours in the pre-Alpine area and the Apennines, before extending and intensifying in the plains by mid-afternoon. The phenomena are expected to progressively attenuate in the late evening. In all sectors the rainfall may take on a thunderstorm character, but with a low probability of strong intensity phenomena, although locally, especially on the plains, possible accumulations of between 20 and 40 mm may occur. Generally weak ventilation is expected, locally strengthened in coinciding with the most intense storm events. For the day of 03/06, scattered showers and thunderstorms will still be possible during the night, with greater probability on the central-eastern lowland belt. In the morning, gradual attenuation of convective phenomena while during the afternoon, activation of new storm nuclei located mainly in the central-eastern pre-Alpine mountains. Generally weak ventilation is expected in the plains, while in the mountains strengthening winds from the north on the border reliefs of Valchiavenna.
Main recommended behaviors – NOTE TO BE REMOVED: ONLY MAINTAIN THE BEHAVIORS INDICATED FOR THE ALERT(S) IN PROGRESS
RISK OF THUNDERSTORMS
- At home, avoid using household appliances and landline telephones and unplug them
- Do not wear metallic objects
- Stay away from water
- Keep about ten meters away from other people
- Avoid taking shelter under trees or tall, sharp structures
- You can take shelter in your car with the doors and windows closed and the radio antenna lowered
- If you are driving and visibility is poor, stop in a suitable parking area
- Avoid the underpasses of via Monviso, Bergamo and Cappuccini
Legend: the color codes of the alerts
The alert legislation provides for the use of color codes, for an immediate understanding of the alert levels, ranging from green, absence of critical issues, up to red, which indicates an extreme situation.
| critical issues | description |
| GREEN (absent) | There are no natural phenomena expected that could generate the risk considered |
| YELLOW (ordinary) | Natural phenomena are foreseen that can give rise to situations that are usually and commonly acceptable by the population and manageable at a local level |
| ORANGE (moderate) | Natural phenomena are expected which do not reach extreme values, but which may affect an important portion of the territory or give rise to widespread damage and risks for the population |
| RED (high) | Natural phenomena are expected that are likely to reach extreme values, which can give rise to serious damage and risks for the population and widely affect the territory |
