Moderate Extreme Weather ● Active
avis jaune - gel - en vigueur — secteur de Longueuil - Varennes, Canada
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
Les températures chuteront près du point de congélation au cours de la nuit prochaine.
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Veuillez continuer à surveiller les alertes et les prévisions émises par Environnement Canada. Pour signaler du temps violent, envoyez un courriel à meteoQC@ec.gc.ca ou publiez un message sur les réseaux sociaux en utilisant #meteoqc.
Measurements
| Coordinates | 45.5625, -73.4639 |
|---|---|
| Region | secteur de Longueuil - Varennes |
| Location Precision | polygon |
| Issuing Authority | Canada — ca-msc-xx |
| Cap Urgency | Future |
| Cap Certainty | Likely |
| Cap Expires | 2026-10-18T14:08:29-00:00 |
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 reportAlso reported by: WMO
This event as JSON · API and licence
Source updated 1 day ago (Oct 17, 2026 22:11 UTC) · we last heard from WMO Alert Hub (national weather services) 1 minute ago
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Official authorities in Canada
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 Canada →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
When thunder roars, go indoors — lightning risk outdoors, in vehicles, and first aid for strike victims.
Open Lightning Safety Guide →Earlier extreme weather events in Canada
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
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.