Severe Severe Storm ● Active

Heavy thunderstorm — Locarnese, Switzerland

Event time: Oct 18, 2026 11:41 UTC Last updated: 1 day ago Switzerland

Icon = what happened · ring colour = how serious: Extreme Severe Moderate Minor

Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.

- Possible impacts: Landslides on steep slopes, sudden flash floods in streams, flooding. Hail damage. Breaking off of branches, toppling of individual trees. Lightning strikes.
- Recommendations for action: In open terrain, if lightning strikes nearby, assume a crouched position (with your feet together) with as little of your body as possible touching the ground (do not lie down flat). Avoid bodies of water, exposed areas (mountain ridges and peaks, trees, towers) and open terrain (e.g. clearings, fields) due to the risk of lightning strikes.

Measurements

Coordinates	46.2277, 8.6779
Region	Locarnese
Location Precision	polygon
Issuing Authority	Switzerland — ch-meteoswiss-de
Cap Urgency	Future
Cap Certainty	Likely
Cap Expires	2026-10-18T12:35:00+00:00

Official source

Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.

This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.

Severity as published by WMO Alert Hub (national weather services).

View original report

Also reported by: METEOALARM

This event as JSON · API and licence

Source updated 1 day ago (Oct 18, 2026 11:48 UTC) · we last heard from WMO Alert Hub (national weather services) 53 seconds ago

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Official authorities in Switzerland

If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.

More for Switzerland →

Earlier severe storm events in Switzerland

Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.

Heavy thunderstorm — Mendrisiotto Severe Severe Storm Switzerland closed via METEOALARM Sep 17, 2026 Heavy thunderstorm — Mendrisiotto Severe Severe Storm Switzerland closed via METEOALARM Sep 16, 2026 Heavy thunderstorm — Luganese, Switzerland Severe Severe Storm Switzerland closed via WMO Sep 9, 2026 Heavy thunderstorm — Mendrisiotto, Switzerland Severe Severe Storm Switzerland closed via WMO Sep 9, 2026

Nearby & related events

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Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.