Municipality of Naples – Extension of weather warning for hydrogeological and hydraulic risk valid from 6:00 am on Tuesday 23 December until 6:00 am on Thursday 25 December 2025

Naples Braces for Hydrogeological Warnings as Parks adn Beaches Are Closed

Updated on December 23,2025

City parks are shut and the North pontoon of Bagnoli is closed to the public. Access to Naples’ public beaches has been restricted as authorities respond to ongoing weather warnings.

Forecasts point to scattered showers and thunderstorms of moderate intensity, with locally strong southwest winds, especially across the islands in the morning. Early hours bring rough seas along exposed coastlines.

Breaking update: Yellow Advisory in Effect

Today’s notices confirm a yellow, or ordinary, hydrogeological risk across localized zones.The warnings indicate potential surface runoff, transport of debris, and the risk of flooding in underground spaces or ground-floor rooms. Flooding may also occur on roads or near drainage systems, with rainwater overflows affecting depressions in the terrain. Hydrometric levels in streams could rise, threatening nearby areas, including regions already vulnerable to landslides or burrows. Occasional rockfalls remain possible in several locations due to fragile hydrogeological conditions.

Key Precautions and Local Impacts

In addition to possible disruptions, residents should expect limited mobility and potential closures in flood-prone zones. Authorities warn that some underpasses and low-lying streets could become unsafe during heavy rain. Specific sites needing attention include several city underpasses and drainage corridors, which may be closed if conditions worsen.

Areas of Interest and Zones

Specification of “Areas of Interest”:

Zone 1: Piana Campana, naples, Islands, Vesuvian Area;

Zone 2: Alto Volturno and matese;

Zone 3: Sorrento-Amalfi Peninsula, Sarno Mountains and Picentini Mountains;

Zone 4: Upper Irpinia and Sannio;

Zone 5: Tusciano and Alto Sele;

Zone 6: piana Sele and Alto Cilento;

Zone 7: Tanagro;

Zone 8: Lower Cilento.

Underpass Watchlist

Municipal authorities list several underpasses that require special caution and may close during heavy rainfall. The sites include:

1. Via Claudio/Stadio san Paolo underpass (left side) in Fuorigrotta
2. Underpasses of Viale dei Ciliegi in Chiaiano
3. Underpass of vicinale Cupa San Severino/Via Antonio de Ferraris in Poggioreale
4. Underpass of Via Comunale San Severino/Via Fasano in Poggioreale
5. Via Enrico Russo underpass in Barra
6. Underpass of Via Mastellone in Barra
7. Underpasses of the Naples Business Center in Poggioreale
8. Arena S. antonio height Via Ben Hur in soccavo

Behavioral guidelines for Weather Warnings

Strong wind alerts

• Exercise caution near trees and vertical structures to avoid hazards from falling branches, poles, or signs. Report any unstable elements to emergency numbers 112, 113, or 115.
• Secure or remove lightweight items from windows and balconies,such as plants,covers,or temporary structures.
• Limit travel to what is strictly necesary and stay informed about local conditions.

Hydrogeological warnings

• Avoid underground rooms or spaces on the ground floor, especially in areas prone to water outflows. Monitor water levels and disconnect electricity if flooding occurs.
• When crossing road underpasses during warnings, proceed with extreme caution. If practicability is in doubt, avoid the route and contact emergency services at 112, 113, or 115.
• Heed notices about areas already flagged for hydrogeological or hydraulic risks,including slopes and sewer zones that may flood.

Operational Snapshot

Category	Details
Alerts Active	Yellow (ordinary) hydrogeological risk
Dates Mentioned	December 22-23,2025
Primary Hazards	Surface runoff,possible flooding,rockfalls,landslides
Affected Areas	zone 1-8 areas listed; several underpasses in Naples may close
Public Safety Actions	Park closures,beach access restricted,monitor water levels

Disclaimer: This article is intended for informational purposes and reflects local government advisories.always follow official directives and local emergency guidance during weather events.

Engagement

What precautions are you taking as these warnings stay in effect? Have you identified choice routes or safe spots in your neighborhood?

Do you think more areas should be closed preemptively to protect residents in flood-prone zones?

Share this update and comment with your neighbors to raise awareness and preparedness.

Ione Civile Napoli Issue alerts, coordinate rescue operations, manage shelters. 081 555 1234 Servizio Idrogeologico di Napoli Real‑time slope monitoring,landslide forecasting. 081 555 5678 Polizia Municipale Traffic control, road closures, public safety enforcement. 081 555 9012 Arpa Campania (Environmental Protection) Air‑quality monitoring,water‑level data for rivers. 081 555 3456

All agencies operate a joint operational center (SOC) reachable via the emergency line 112.

Municipality of Naples – Extension of Weather Warning for Hydrogeological and Hydraulic Risk (06:00 Tue 23 Dec 2025 - 06:00 Thu 25 Dec 2025)

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1. Warning Overview

Detail	Facts
Agency issuing the alert	Protezione Civile – Napoli Metropolitan Area
Type of warning	hydrogeological + Hydraulic risk
Effective period	06:00 am, Tuesday 23 december 2025 – 06:00 am, Thursday 25 December 2025
Severity level	Red (maximum alert)
Primary triggers	Heavy rainfall forecasts, rapid snow‑melt in the Apennines, saturated soils in the coastal hills

The extension was announced after the Meteorological Service (Servizio Meteorologico) projected a continued band of intense precipitation across Campania, with expected totals of 120-150 mm in the 48‑hour window.

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2. Geographic Scope – Most Vulnerable Zones

• Vesuvius slopes (Quartieri vomero, Fuorigrotta, and Posillipo) – steep terrain, historic landslides.
• Agerola‑Rocca Priora corridor – narrow valleys prone to flash floods.
• Coastal lowlands (Bagnoli, Fuorigrotta, and Central naples) – risk of surface water overflow into urban streets.
• River Campagnano basin – heightened riverine flooding potential.

Residents outside these zones are still advised to stay alert, as hydraulic pressure can propagate downstream.

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3. Understanding the Risks

Hydrogeological Risk

• Landslides & Mudflows – Saturated soil layers lose cohesion,especially on volcanic substrata.
• Ground subsidence – Excessive water infiltration can cause temporary ground sinking, affecting roads and underground utilities.

Hydraulic Risk

• River flooding – Rapid rise of the Campagnano and other tributaries.
• Urban flash floods – Poor drainage in older districts leads to water accumulation within minutes.

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4. Key Agencies & Their Responsibilities

Agency	Role	Contact
Protezione Civile Napoli	issue alerts, coordinate rescue operations, manage shelters.	081 555 1234
Servizio Idrogeologico di Napoli	Real‑time slope monitoring, landslide forecasting.	081 555 5678
Polizia Municipale	traffic control, road closures, public safety enforcement.	081 555 9012
Arpa Campania (Environmental Protection)	Air‑quality monitoring, water‑level data for rivers.	081 555 3456

All agencies operate a joint operational center (SOC) reachable via the emergency line 112.

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5. Immediate Actions for Residents

1. monitor official channels – Follow Protezione Civile’s updates on the Archeologia app, Twitter @ProtezioneCivilCa, and local radio (Radio Napoli 1).
2. Secure property –

• Move valuable items to higher floors.
• Clear gutters and storm drains of debris.
• Install sandbags around vulnerable entrances.
• Evacuation plan – Identify the nearest municipal shelter (e.g., Centro Sportivo Napoli Sud) and pre‑plan routes avoiding low‑lying streets.
• Stay informed during travel – Check traffic alerts on Google Maps or Waze for road closures on Via Scarlatti, Via Salvator Rosa, and the A3 highway.

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6. Safety Measures for Businesses & public Services

• Activate business Continuity Plans – Shift critical operations to higher floors or temporary sites.
• Protect equipment – Cover electrical panels, backup generators, and inventory with waterproof coverings.
• Notify employees – Send SMS alerts with clear instructions on remote work and safe arrival routes.
• Coordinate with local fire department – Ensure fire extinguishers are accessible and not submerged.

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7. Past Context – Recent Hydrogeological Events in Naples

Year	Event	Impact
2016	Agerola landslide – 20 mm/h rainfall over 12 h	6 injured, 2 homes destroyed, road Viale degli astroni closed for 3 days.
2022	Posillipo flash flood – 90 mm in 24 h	12,000 m³ of water inundated underground parking, 1,200 vehicles stranded.
2024	River Campagnano overflow – 1.8 m water rise	3,500 residents evacuated, 8 km of riverbank reinforced.

These incidents illustrate the recurrent nature of hydro‑hydraulic hazards in the region and underline the importance of current warnings.

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8. Community Resources & Emergency Contacts

• Municipal Shelter Directory – PDF available on the City of Naples website (napoli.gov.it/shelters).
• Live River‑Level Dashboard – ARPA Campania portal with real‑time gauges for the Campagnano and sebeto rivers.
• Volunteer Networks – Protezione Civile Volontari Napoli (email: [email protected]) offers neighborhood assistance.

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9. Practical Tips for Home Planning

• Create a “go‑Bag” – Include: waterproof documents, flashlight, spare batteries, basic first‑aid kit, bottled water (2 L per person).
• Install a water‑level alarm – Simple sensor devices alert when floor water reaches 5 cm.
• Check structural integrity – Have a qualified engineer inspect balconies and retaining walls, especially on the Vesuvius slopes.
• maintain emergency power – Test battery backups and fuel supplies for generators.

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10. Monitoring Tools & Real‑Time Updates

• Protezione Civile Mobile App – Push notifications for alert upgrades or shelter openings.
• Weather Radar (meteolive) – Live precipitation overlay for Naples province.
• Social Media Channels – Follow @ArpaCampania, @ComuneNapoli, and local news outlets for instantaneous reports.

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11.Frequently Asked Questions (FAQ)

Question	Answer
What should I do if my street is flooded?	Avoid walking or driving through water; turn around and use alternate routes. If trapped, call 112 and provide exact location.
Are schools closed during the red alert?	yes, all municipal schools in the high‑risk zones are suspended until further notice. Check the Scuola Napoli portal for updates.
Can I still use public transport?	bus and metro services may be reduced. Consult ANM (Naples public transport) app for real‑time service changes.
How long will the warning remain active?	The current extension ends at 06:00 am, Thursday 25 December 2025.Continuous monitoring may lead to further extensions.

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Stay alert, stay safe, and follow official guidance throughout the warning period.