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2019–20 European windstorm season

The 2019–20 European windstorm season is the fifth instance of seasonal European windstorm naming in Europe. This will be the first season in which the Netherlands will participate, joining the United Kingdom and Ireland's meteorological agencies. The new season's storm names were released on 6 September 2019. In July 2019, it was announced that storm seasons would run from 1 September 2019 to 1 September 2020.[1][2] The Portuguese, Spanish and French meteorological agencies will again collaborate too, joined by the Belgian meteorological agency.

2019–20 European windstorm season
First storm formed2 October 2019
Last storm dissipatedSeason ongoing
Strongest storm1Lorenzo
966 mbar (28.5 inHg)
Strongest wind gust101 mph (163 km/h)
Corvo Island, Azores
(2nd October)
Total storms1
Total fatalities16
1Strongest storm is determined by lowest pressure and maximum recorded non-mountainous wind gust is also included for reference.
2020–21 →

Background and namingEdit

In 2015, the Met Office and Met Éireann announced a pilot project to name storm warnings as part of the Name our Storms project for wind storms and asked the public for suggestions. The meteorological offices produced a full list of names for 2015–16 through to 2017–18, common to both the United Kingdom and Ireland, with the Netherlands taking part from 2019 onwards. Names in the United Kingdom will be based on the National Severe Weather Warning Service, when a storm is assessed to have the potential for an Amber ('be prepared') or Red ('take action (danger to life)') warning.

There are two main naming lists, created by the national meteorological agencies of the United Kingdom and Ireland, and France, Spain and Portugal respectively. Additionally, former Atlantic hurricanes will retain their names as assigned by the National Hurricane Center of the United States.[3]

Besides these naming systems, the Free University of Berlin also names high and low pressure areas through its "Adopt a vortex" programme. The Nordic nations of Denmark, Norway and Sweden also name storms with more limited reciprocation.[4] Other nations may also name storms either through their national meteorological institutions or popularly.

United Kingdom, Republic of Ireland and NetherlandsEdit

The following names have been selected for the 2019–2020 season:[5][6]

  • Atiyah (unused)
  • Brendan (unused)
  • Ciara (unused)
  • Dennis (unused)
  • Ellen (unused)
  • Francis (unused)
  • Gerda (unused)
  • Hugh (unused)
  • Iris (unused)
  • Jan (unused)
  • Kitty (unused)
  • Liam (unused)
  • Maura (unused)
  • Noah (unused)
  • Olivia (unused)
  • Piet (unused)
  • Róisín (unused)
  • Samir (unused)
  • Tara (unused)
  • Vince (unused)
  • Willow (unused)

'Liam' was chosen through a poll made by Met Éireann on Twitter.[7]

France, Spain, Portugal and BelgiumEdit

This will be the third year in which the meteorological agencies of France, Spain and Portugal will be naming storms which affect their areas. This naming scheme is partially overlapping with that used by the United Kingdom, Ireland and the Netherlands, as storms named by the other group of agencies will be used reciprocally.[8][9]

The following names have been selected for the 2019–2020 season:[10]

  • Amelie (unused)
  • Bernardo (unused)
  • Cecilia (unused)
  • Daniel (unused)
  • Elsa (unused)
  • Fabien (unused)
  • Gloria (unused)
  • Herve (unused)
  • Ines (unused)
  • Jorge (unused)
  • Karine (unused)
  • Leon (unused)
  • Myriam (unused)
  • Norberto (unused)
  • Odette (unused)
  • Prosper (unused)
  • Raquel (unused)
  • Simon (unused)
  • Teresa (unused)
  • Valentin (unused)
  • Wanda (unused)

Season summaryEdit

Hurricane Lorenzo (2019) 

The first designated system of the season was Storm Lorenzo, when Met Éireann issued yellow wind warnings for Ireland and an orange warning for the western coastal counties.[11] The storm consisted out of the remnants of Hurricane Lorenzo, which had turned extratropical.[12]

StormsEdit

LorenzoEdit

Storm Lorenzo
 
Storm Lorenzo after passing the Azores.
 
Path of Hurricane Lorenzo and its post-tropical remnants according to the Saffir-Simpson scale.
Area affectedAzores, Ireland, United Kingdom
Date of impact2 October-4 October
Maximum wind gust101 mph (163 km/h) Corvo Island, Azores
Lowest pressure966 mbar (28.5 inHg)
Fatalities16
Power outages±20,000[13]

On 26 September 2019, the Portuguese meteorological agency (IPMA) began issueing advisories for Hurricane Lorenzo.[14] The National Hurricane Center issued hurricane and tropical storm watches on 30 September 2019 for the Azores,[15] which were later upgraded to warnings.[16]

On 2 October 2019, Lorenzo passed the Azores a few hours before the NHC issued their 9:00 UTC advisory.[17] The next and final advisory stated that Lorenzo had undergone extratropical transition.[12]

The same day, Met Éireann issued a yellow warning for wind for the entirety of Ireland, as well as an orange warning for the western coastal counties.[18][11] The Met Office issued yellow wind warnings for Northern Ireland, Cornwall and parts of Devon and south-west Wales.[11] Upon issueance of the orange warning, Met Éireann named the extratropical remnants of Lorenzo "Storm Lorenzo".[11][note 1] Storm Lorenzo dissipated above the Irish Sea on 4 October.[19]

On 3 October, the M6 Buoy, located about 400 km (250 mi) west of Mace Head, Galway, recorded a pressure of 969 mbar (28.6 inHg) near Lorenzo's centre.[20] The same buoy also recorded a maximum wave height of 12.5 m (41 ft).[21] On the day of the storm passing Ireland, 4 October, new weather warnings were issued for the counties Longford, Westmeath, Galway, Mayo, Roscommon and Clare.[22] The highest recorded wind gust was 66 mph (107 km/h), with the highest 10-minute mean being 54 mph (87 km/h), both recorded at Mace Head.[23]

Power was cut to almost 20,000 homes in Ireland at the height of the storm, with floodings occurring throughout the country.[13] River Eske partially flooded Donegal as result of nearly 50 mm (2.0 in) of rain falling as high tide was approaching. The amount of damage country-wide, however, was less than anticipated for.[24]

Season effectsEdit

Storm Dates active Highest wind gust Lowest pressure Casualties Damage Affected areas
Lorenzo 2–4 October 2019 101 mph (163 km/h) 966 mbar (28.5 inHg) 0 Azores, Eastern United States (while a hurricane), Ireland, United Kingdom
1 windstorm 2 October-ongoing 101 mph (163 km/h) 966 mbar (28.5 inHg) 0

NotesEdit

  1. ^ By naming the extratropical remnants of Hurricane Lorenzo "Storm Lorenzo",[11] it contradicts what the agencies would name remnants of hurricanes which cause issueance of amber, orange or red warnings (Ex-Hurricane Name).[3]

ReferencesEdit

  1. ^ Gleeson, Colin. "Met Éireann appealing for names for next season's storms". The Irish Times.
  2. ^ "#NameOurStorms: Met Office asks UK weather fans to help name storms". ITV News.
  3. ^ a b "UK Storm Centre". metoffice.gov.uk. Met Office. Retrieved 5 October 2019.
  4. ^ "Las listas de los nombres de borrascas para 2018–2019" (in Spanish). Revista del Aficionado a la Meteorología. 13 September 2018. Retrieved 15 September 2018.
  5. ^ "Storm Names". www.met.ie. Met Éireann. 6 September 2019. Retrieved 6 September 2019.
  6. ^ "Storm names for 2019-20 announced". metoffice.gov.uk. Met Office. 5 September 2019. Retrieved 6 September 2019.
  7. ^ Met Éireann [@MetEireann] (3 September 2019). "We will be announcing the Storm Names for 2019-20 this Friday morning Sept 6th. Thanks for all your suggestions 👍 We have the names selected, apart from the letter L. So can you please help us decide by voting for your favourite below. #StormNames2019 @metoffice" (Tweet) – via Twitter.
  8. ^ "Les listes des noms de tempêtes 2018–2019 rendues publiques" (in French). Météo-France. 12 September 2018. Retrieved 14 September 2018.
  9. ^ "Nueva temporada de nombramiento de borrascas con gran impacto". aemet.es (in Spanish). Agencia Estatal de Meteorología. 1 October 2018. Retrieved 3 October 2018.
  10. ^ "Borrascas con gran impacto de la temporada 2019–2020". aemet.es (in Spanish). Agencia Estatal de Meteorología. Retrieved 3 September 2019.
  11. ^ a b c d e Press Office (2 October 2019). "How will Storm Lorenzo affect the UK?". metoffice.gov.uk. Met Office. Retrieved 2 October 2019.
  12. ^ a b Daniel Brown (2 October 2019). "Post-Tropical Cyclone Lorenzo Discussion Number 41". nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved 2 October 2019.
  13. ^ a b "Storm Lorenzo: Power outages and flooding in Donegal". bbc.com. British Broadcasting Corporation. 4 October 2019. Retrieved 6 October 2019.
  14. ^ IPMA [@ipma_pt] (26 September 2019). "2019 1210FURACÃO LORENZO - AÇORES - COMUNICADO Nº1 www.ipma.pt/pt/otempo/comunicados/" (Tweet) (in Portuguese) – via Twitter.
  15. ^ Eric Blake (30 September 2019). "Hurricane Lorenzo Discussion Number 31". nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved 30 September 2019.
  16. ^ Andrew Latto (30 September 2019). "Hurricane Lorenzo Discussion Number 33". nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved 30 September 2019.
  17. ^ Richard Pasch (2 October 2019). "Hurricane Lorenzo Discussion Number 40". nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved 2 October 2019.
  18. ^ "National Warnings - Met Éireann". met.ie. Met Éireann. 2 October 2019. Archived from the original on 2 October 2019. Retrieved 2 October 2019.
  19. ^ Christensen (4 October 2019). "East Atlantic Surface Analysis 12:00 UTC 04 Oct 2019". ocean.noaa.gov. Ocean Prediction Center. Archived from the original (GIF) on 5 October 2019. Retrieved 5 October 2019.
  20. ^ "Tracking Hurricane Lorenzo". met.ie. Met Éireann. 3 October 2019. Archived from the original on 6 October 2019. Retrieved 6 October 2019.
  21. ^ Graham Fahy (3 October 2019). Peter Graff (ed.). "Ireland braces for damage and flooding as storm Lorenzo nears". reuters.com. Reuters. Retrieved 6 October 2019.
  22. ^ Digital Desk Staff (4 October 2019). "Storm Lorenzo: ESB work to restore power to thousands of homes and businesses". breakingnews.ie. BreakingNews. Retrieved 6 October 2019.
  23. ^ Met Éireann [@MetEireann] (4 October 2019). "The map below shows the highest 10-min mean wind speeds and the maximum gust recorded at each station during the last two days. The figures are colour coded in line with our warning criteria" (Tweet) – via Twitter.
  24. ^ Ronan McGreevy; Rachel McLaughlin (4 October 2019). "Power restored to all electricity customers following Storm Lorenzo, says ESB". irishtimes.com. The Irish Times. Retrieved 6 October 2019.

External linksEdit