Historical eventNovember 182017
Cyclone Numa
Cyclone Numa, a rare "medicane", made landfall in Greece to become the worst weather event that the country had experienced since 1977.
In context
- When
- Saturday, November 18 20179 years ago
- Category
- Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
- Era
- 21st century · 2010s
- Recorded from
- Wikipedia “On this day” feed
At a glance
Dates: From 2017.
What came beforeAI-assisted
Greece had not experienced a major medicane (Mediterranean hurricane) in decades. The last comparable severe weather event was in 1977, making Cyclone Numa a rare meteorological occurrence for the region.
Catalyst / how it startedAI-assisted
Cyclone Numa formed over the Ionian Sea in November 2017 when warm Mediterranean waters combined with atmospheric conditions typical of medicane development. The system intensified rapidly due to the temperature contrast between warm sea surface and cold upper atmosphere.
Who was involvedAI-assisted
Greece bore the brunt of the cyclone, with the country's meteorological services and emergency response teams mobilized. Neighboring countries in the Mediterranean region also experienced impacts from the system's outer bands.
TimelineAI-assisted
Cyclone Numa formed in mid-November 2017 and made landfall in Greece on November 18, 2017. The system brought severe winds, heavy rainfall, and flooding to the affected areas.
What happened
Cyclone Numa, a rare "medicane", made landfall in Greece to become the worst weather event that the country had experienced since 1977.
November 18 through the years
Other entries on the same calendar day, in order.
Also in 2017
- March 14NihoniumA naming ceremony for the chemical element nihonium takes place in Tokyo, with then Crown Prince Naruhito in attendance.
- September 15Parsons Green train bombingA homemade bomb partially exploded on an eastbound District line train at Parsons Green tube station in West London, injuring 30 passengers.
- September 18Toys "R" UsToy retail chain Toys "R" Us files for bankruptcy protection in the United States and Canada.
- October 20Syrian civil warSyrian civil war: The Syrian Democratic Forces (SDF) declare victory in the Raqqa campaign.
- June 14Grenfell Tower fireA fire severely damaged Grenfell Tower in North Kensington, London, killing 72 people.
- June 14Steve ScaliseRepublican U.S. House Majority Whip Steve Scalise of Louisiana, and three others, are shot and wounded while practicing for the annual Co…
- September 32017 North Korean nuclear testNorth Korea conducted its sixth and most powerful nuclear test at Punggye-ri, causing a magnitude-6.3 earthquake.
- September 3North KoreaNorth Korea conducts its sixth and most powerful nuclear test.
Sources
- Wikipedia article (text, CC BY-SA 4.0)
- Licence: CC BY-SA 4.0 for adapted text · how we source this
Cite this page
“Cyclone Numa”, What's On This Date, https://whatsonthisdate.com/app/event/cyclone-numa-2017-november-18, accessed October 27, 2026.
Cite the underlying source as well — the source links above go to the record this entry is adapted from.
Questions about this entry
When did Cyclone Numa happen?
November 18 2017 — 9 years ago, on a Saturday.
Where does this text come from?
Wikipedia “On this day” feed. Summaries are short adaptations that link back to the source, not reprints. Panels marked AI-assisted were filled where the sources left a heading empty.
How do I cite this page?
Use the ready-made citation near the sources at the bottom of the page, and follow the source link to cite the underlying record as well.
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