Satellite- based price quote of rains rates (in millimeters per hour) over Greece on September 6, 2023.
A stalled storm dropped 3 feet of rain over 4 days on the Thessaly area, setting off substantial flooding.
Following weeks of heat waves and fires, downpours let loose prevalent flooding in Central Greece in early September2023 Over the course of the four-day storm that started on September 4, floodwater immersed houses, turned streets into raving rivers, and swept cars and trucks out to sea.
Causes of the Heavy Rainfall
The heavy rains was sustained by a stalled low-pressure storm system that ended up being cut off from the jet stream, likewise referred to as a cut-off low. This storm was comparable in nature to the cut-off low that triggered rainstorms in Spain on September 3, and belongs to an uncommon omega weather condition system, in which a zone of high pressure is sandwiched in between 2 locations of low pressure. This omega weather condition system was blamed for both an unseasonal heatwave in the UK and the disastrous flooding in Spain, Greece, Bulgaria, and Turkey.
Impact in Greece
Central Greece was amongst the hardest struck by the storm in regards to rains, with record quantities falling on the Thessaly area on September 5. The greatest levels of rains, 754 millimeters (30 inches), fell on Zagora, a town near Mount Pelion, simply northeast ofVolos For contrast, the capital city of Athens gets approximately about 400 millimeters (16 inches) in a year. The Krafsidonas River, which comes from Mount Pelion, broke its banks in Volos and ruined a bridge in its course.
Satellite Data on Rainfall
The map at the top of this post illustrates a satellite-based price quote of rains rates (in millimeters per hour) over Greece for September 6, as heavy rain continued. The darkest reds show the greatest rains rates, which once again struck Central Greece in addition to locations to the south, consisting ofAthens The information are from another location noticed price quotes that originate from the Integrated Multi-Satellite Retrievals for GPM (IMERG), an item of the Global Precipitation Measurement (GPM) satellite objective. Due to balancing of the satellite information, regional rains rates might be substantially greater when determined from the ground.
Flooded Areas and Comparisons
Using satellite information from the < period class ="glossaryLink" aria-describedby ="tt" data-cmtooltip ="<div class=glossaryItemTitle>European Space Agency</div><div class=glossaryItemBody>The European Space Agency (ESA) is an intergovernmental organization dedicated to the exploration and study of space. ESA was established in 1975 and has 22 member states, with its headquarters located in Paris, France. ESA is responsible for the development and coordination of Europe's space activities, including the design, construction, and launch of spacecraft and satellites for scientific research and Earth observation. Some of ESA's flagship missions have included the Rosetta mission to study a comet, the Gaia mission to create a 3D map of the Milky Way, and the ExoMars mission to search for evidence of past or present life on Mars.</div>" data-gt-translate-attributes="[{"attribute":"data-cmtooltip", "format":"html"}]" >EuropeanSpaceAgency‘sSentinel -1 satellite,Meteo reported that sinceSeptember 6, big parts ofThessaly had actually been flooded.On that day,331 millimeters(13 inches) fell on the city of Karditsa, which has to do with 100 kilometers (60 miles) inland fromVolos Athens got 55 millimeters (2 inches) of rain, according to Meteo.
Extent of Flooding in Neighboring Regions
The very same low-pressure system produced fatal flooding in eastern Bulgaria and western Turkey on September 5, however relieved by the next day. In Greece, the storm slowly declined by the night of September 7.
Some of Meteo’s meteorological stations stopped sending due to power blackouts, however over the four-day storm, they taped the most cumulative rain over the Thessaly area. Zagora saw 910 millimeters (36 inches), and 659 millimeters (26 inches) fell on Karditsa.
< period class ="glossaryLink" aria-describedby ="tt" data-cmtooltip ="<div class=glossaryItemTitle>NASA</div><div class=glossaryItemBody>Established in 1958, the National Aeronautics and Space Administration (NASA) is an independent agency of the United States Federal Government that succeeded the National Advisory Committee for Aeronautics (NACA). It is responsible for the civilian space program, as well as aeronautics and aerospace research. Its vision is "To discover and expand knowledge for the benefit of humanity." Its core values are "safety, integrity, teamwork, excellence, and inclusion." NASA conducts research, develops technology and launches missions to explore and study Earth, the solar system, and the universe beyond. It also works to advance the state of knowledge in a wide range of scientific fields, including Earth and space science, planetary science, astrophysics, and heliophysics, and it collaborates with private companies and international partners to achieve its goals.</div>" data-gt-translate-attributes="[{"attribute":"data-cmtooltip", "format":"html"}]" > NASAEarthObservatory image byLauren Dauphin, utilizing IMERG information from the Global Precipitation Mission (GPM) at NASA/GSFC.
