Extreme Heavy Rain ● Closed

Fortes averses orageuses avec risque élevé d'inondation en Basse, Moyenne et Haute Guinée, ainsi que la zone côtière de manière particulière dans la nuit du 20 au 21 septembre 2026, Guinea

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.

La Basse Guinée et particulièrement les villes du littoral enregistrent de fortes averses accompagnées d'orages depuis la matinée du 18 septembre 2026. Cette situation se maintiendra et affectera progressivement la Haute et la Moyenne Guinée dans la nuit du 20 au 21 septembre 2026 avec risque d’inondation très élevé en zone côtière. Elle pourrait aussi s'étendre très localement à la matinée du 21 septembre 2026. Le Grand Conakry, Fria, Télimélé, Boké, Forécariah, Kindia et Boffa, Siguiri, Kankan, Mandiana et Dinguiraye sont particulièrement concernées.

Measurements

Coordinates11.1926, -11.2038
RegionBasse, Moyenne et Haute Guinée
Location Precisionpolygon
Issuing AuthorityGuinea — gn-dnm-fr
Cap UrgencyImmediate
Cap CertaintyLikely
Cap Expires2026-09-21T15:00:00+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: WMO

This event as JSON · API and licence

Source updated 29 days ago (Sep 20, 2026 19:38 UTC) · we last heard from WMO Alert Hub (national weather services) 4 seconds ago

On a slow connection? Low-bandwidth version — no map, no scripts, under 14 KB.

What to do

Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.

Flash flood risk awareness, urban drainage flooding, and staying safe during cloudbursts and monsoon downpours.

Open Extreme Rain & Flash Flood Safety →

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.