# Weather of 2011 > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Weather_of_2011 > Markdown URL: https://mediated.wiki/source/Weather_of_2011.md > Source: https://en.wikipedia.org/wiki/Weather_of_2011 > Source revision: 1331377427 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) {{Short description|none}} [[File:The Super Outbreak of 2011 (50700830202).jpg|thumb|The [extratropical cyclone](/source/extratropical_cyclone) that produced the [2011 Super Outbreak](/source/2011_Super_Outbreak), the largest and deadliest tornado outbreak of 2011.]] [[File:Water distribution in Horn of Africa.jpg|right|thumb|Water distribution in southern Ethiopia, amid the [East Africa drought](/source/2011_East_Africa_drought) that killed over 50,000 people]] The following is a list of weather events that occurred in 2011. The year began with [La Niña](/source/La_Ni%C3%B1a) conditions. There were several natural disasters around the world from various types of weather, including [blizzard](/source/blizzard)s, [cold wave](/source/cold_wave)s, droughts, [heat waves](/source/heat_waves), [tornado](/source/tornado)es, and [tropical cyclone](/source/tropical_cyclone)s. ==Global conditions== There was a strong [La Niña event](/source/2010%E2%80%932012_La_Ni%C3%B1a_event) that began in 2010, and continued into 2012, which affected global weather conditions.{{Cite web|url=https://wmo.int/news/media-centre/la-nina-has-developed|title=La Niña has developed|date=October 29, 2020|website=World Meteorological Organization}} The year was the second-wettest on record, only behind 2010, although some areas, such as the [Horn of Africa](/source/Horn_of_Africa), were drier than normal. The increased precipitation caused global [sea level](/source/sea_level) to drop by {{convert|5|mm|in|abbr=on}}. The global land temperature was the 8th warmest on record at the time, 0.8 °C (1.49 °F) above the 20th century average, and was also the warmest ever during a La Niña event.{{Cite web | title=Monthly Climate Reports {{!}} National Centers for Environmental Information (NCEI) | url=https://www.ncei.noaa.gov/access/monitoring/monthly-report/global/201113 | access-date=2025-08-17 | website=www.ncei.noaa.gov}}{{Cite web|url=https://phys.org/news/2012-10-la-nina-global-sea.html|title=La Nina caused global sea level drop|website=phys.org}} == Deadliest events == {| class="wikitable sortable" style="width:100%;" |+ Deadliest meteorological events during 2011 |- ! scope="col" style="width:2%; text-align:center;"| Rank ! scope="col" text-align:center;"| Event ! scope="col" text-align:center;"| Date(s) ! scope="col" text-align:center;"| Deaths (+Missing) ! scope="col" style="width:2%; text-align:center;"| Refs |- | style="background:#DDDDFF" |1 | [East Africa drought](/source/2011_East_Africa_drought) | July 2011 – 2012 | 50,000+ | {{cite news|title=East Africa's drought: the avoidable disaster|date=January 18, 2011|accessdate=July 25, 2023|url=https://www.theguardian.com/world/2012/jan/18/east-africa-drought-disaster-report|newspaper=The Guardian}} |- | style="background:#DDDDFF" |2 | [Tropical Storm Washi](/source/Tropical_Storm_Washi) | December 13–19 | 1,257 | |- | style="background:#DDDDFF" |3 | [2011 Super Outbreak](/source/2011_Super_Outbreak) | April 25–28 | 324 | |- | style="background:#DDDDFF" |4 | [Deep Depression BOB 04](/source/2011_North_Indian_Ocean_cyclone_season) | October 19–20 | 215 | |- | style="background:#DDDDFF" |5 | [Tornado outbreak sequence of May 21–26, 2011](/source/Tornado_outbreak_sequence_of_May_21%E2%80%9326%2C_2011) | May 21–26 | 178 | |- | style="background:#DDDDFF" |6 | | | | |- | style="background:#DDDDFF" |7 | | | | |- | style="background:#DDDDFF" |8 | | | | |- | style="background:#DDDDFF" |9 | | | | |- | style="background:#DDDDFF" |10 | | | | |- |} ==Types== The following listed different types of special weather conditions worldwide. ===Droughts and heat waves=== The deadliest weather event of the year was the [East African drought](/source/2011_East_Africa_drought), with the resulting food shortages and famine killing more than 50,000 people, many of them children. From March to August, a [heat wave and drought](/source/2011_North_American_heat_wave) persisted across much of the central United States, causing US$12 billion in damage and 95 deaths.
===Tornadoes=== [[File:Joplin_2011_tornado_damage.jpg|right|thumb|Aerial footage after the [EF5](/source/Enhanced_Fujita_scale) [Joplin, Missouri tornado](/source/2011_Joplin_tornado), which became the deadliest single tornado in more than 61 years]] {{main|Tornadoes of 2011}} Throughout the year, there were 1,706 tornadoes in the United States, the third-highest on record. There were 553 deaths from tornadoes, making it the deadliest year for tornadoes in the country since modern records began in 1950.{{Cite web | title=Monthly Climate Reports {{!}} National Centers for Environmental Information (NCEI) | url=https://www.ncei.noaa.gov/access/monitoring/monthly-report/tornadoes/202213 | access-date=2025-08-17 | website=www.ncei.noaa.gov}} In late April, the U.S. experienced its [most substantial tornado outbreak on record](/source/2011_Super_Outbreak), with 360 confirmed tornadoes, including four EF5 tornadoes. The event resulted in 324 fatalities and US$10.2 billion in damage. A month later, [an EF5 tornado hit Joplin, Missouri](/source/2011_Joplin_tornado), killing 158 people, making it the deadliest tornado since 1950.
===Tropical and subtropical cyclones=== [[File:Sendon Memorial.jpg|right|thumb|A memorial in the Philippines to commemorate the deadly flooding from [Tropical Storm Washi](/source/Tropical_Storm_Washi), known locally as Sendong]] {{see also|Tropical cyclones in 2011}} The [Japan Meteorological Agency](/source/Japan_Meteorological_Agency) tracked 21 tropical storms in the western Pacific during the year, making it the fourth-quietest season since accurate records began in 1951. Of these, eight attained typhoon status, the strongest of which, [Songda](/source/Typhoon_Songda_(2011)), attained 10 minute sustained winds of 195 km/h (120 mph) and a minimum pressure of {{convert|920|hPa|inHg}}. The first named storm, [Aere](/source/Tropical_Storm_Aere_(2011)), was named on May 7, while the final, [Tropical Storm Washi](/source/Tropical_Storm_Washi), dissipated on December 19, days after causing damaging and deadly floods in the Philippines. Washi, known locally as Sendong, killed at least 1,257 people in the Philippines.{{Cite web| title=Summary of the 2011 typhoon season | url=https://www.typhooncommittee.org/44th/Docs/item4_teco/item%204.1%20RSMC/4.1%20add2%20Review%202011%20Typhoon%20Season-RSMC.pdf | archive-url=https://web.archive.org/web/20140826161805/http://www.typhooncommittee.org/44th/Docs/item4_teco/item%204.1%20RSMC/4.1%20add2%20Review%202011%20Typhoon%20Season-RSMC.pdf | archive-date=2014-08-26}} The [National Hurricane Center](/source/National_Hurricane_Center) followed 19 tropical storms in the Atlantic Ocean, 10 becoming hurricanes, as well as 11 tropical storms in the eastern Pacific Ocean, 7 becoming hurricanes. In July, [Hurricane Dora](/source/Hurricane_Dora_(2011)) became the year's strongest tropical cyclone in the western hemisphere, with 1 minute sustained winds of 250 km/h (155 mph). [Hurricane Irene](/source/Hurricane_Irene) was the year's costliest and deadliest for the Atlantic Ocean, killing 48 people and leaving US$13.5 billion in damage as it moved from the Caribbean up the East Coast of the United States.{{cite report|title=2011 Atlantic Basin Tropical Cyclones|date=January 26, 2012|url=https://www.nhc.noaa.gov/data/tcr/summary_atlc_2011.pdf|format=PDF|publisher=National Hurricane Center|accessdate=July 25, 2023}}{{cite report|title=2011 Eastern North Pacific Basin Tropical Cyclones|date=February 3, 2012|url=https://www.nhc.noaa.gov/data/tcr/summary_epac_2011.pdf|format=PDF|publisher=National Hurricane Center|accessdate=July 25, 2023}} In October, the North Indian Ocean spawned its first cyclonic storm, [Keila](/source/Cyclone_Keila) offshore Oman. The only other cyclonic storm, [Thane](/source/Cyclone_Thane), struck southeastern India in December. Outside of the official [tropical cyclone basins](/source/tropical_cyclone_basins), there was also an unusual system in the Mediterranean, [Tropical Storm Rolf](/source/Tropical_Storm_Rolf), which struck southern France. ===Wildfires=== Amid widespread drought conditions, there were widespread wildfires across the southern and southwestern United States from June to November, causing US$1.8 billion in damage and five deaths. ==Timeline== This is a timeline of deadly weather events during 2011. ===January=== ===February=== *February 1–3 – The [Groundhog Day blizzard](/source/2011_Groundhog_Day_blizzard) killed 36 people across the central and northeastern United States, with damage estimated at US$1.8 billion. *February 9–19 – [Cyclone Bingiza](/source/Cyclone_Bingiza) struck Madagascar in three different locations, dropping heavy rainfall across the island which caused 34 fatailties.{{cite news|title=First trip to Madagascar for ShelterBox following Cyclone Bingiza|at=ReliefWeb|work=ShelterBox|date=March 3, 2011|accessdate=July 25, 2023|url=https://reliefweb.int/report/madagascar/first-trip-madagascar-shelterbox-following-cyclone-bingiza}} ===March=== ===April=== *April–May – [Floods along the Mississippi River](/source/2011_Mississippi_River_floods) killed nine people and left US$3 billion in damage. *April 4–5 – A [derecho and tornado outbreak](/source/Derecho_and_tornado_outbreak_of_April_4%E2%80%935%2C_2011) across the southeastern United States killed nine people and left US$2.8 billion in damage. *April 14–16 – A [tornado outbreak](/source/Tornado_outbreak_of_April_14%E2%80%9316%2C_2011) swept across the central United States, with 178 confirmed tornadoes; there were 38 deaths and US$2.1 billion related to the event. *April 25–28 – A [widespread and deadly tornado outbreak](/source/2011_Super_Outbreak) affected much of the eastern United States, with more than 343 tornadoes confirmed, resulting in 324 fatalities and US$10.2 billion in damage. It was the largest tornado outbreak on record in the United States. ===May=== *May–June – [Floods along the Missouri River](/source/2011_Missouri_River_Flood), related to melted snowpack, killed five people and left US$2 billion in damage. *May 5–12 – [Tropical Storm Aere](/source/Tropical_Storm_Aere_(2011)) dropped heavy rainfall in the eastern Philippines, killing 35 people. *May 19–29 – [Typhoon Songda](/source/Typhoon_Songda_(2011)) brushed the eastern Philippines, causing four fatalities. *May 22–27 – A [tornado outbreak](/source/Tornado_outbreak_sequence_of_May_21%E2%80%9326%2C_2011) across the central United States spawned 180 tornadoes, resulting in US$9.1 billion in damage and 178 deaths. Among the tornadoes was an [EF5 tornado that struck Joplin, Missouri](/source/2011_Joplin_tornado), which killed 158 people, making it the deadliest tornado in the country since 1947, as well as the costliest single tornado in the country. ===June=== *June 1 – A rare [tornado outbreak](/source/2011_New_England_tornado_outbreak) impacted New England, particularly in Massachusetts where an intense and long track tornado killed 3. *June 8–11 – [Tropical Storm Sarika](/source/Tropical_Storm_Sarika_(2011)) developed west of the Philippines and moved into southeastern China, killing nine people.{{cite news|title='Dodong' brings floods; death toll: 9|newspaper=The Philippine Daily News|date=June 10, 2011|accessdate=July 24, 2023|url=https://newsinfo.inquirer.net/13620/%E2%80%98dodong%E2%80%99-brings-floods-death-toll-9| first = Leila B. | last = Salaverria}} *June 16–22 – A [deep depression](/source/2011_North_Indian_Ocean_cyclone_season) hit eastern India, causing 12 fatalities, with hundreds of houses collapsed due to heavy rains.{{cite report|title=WMO/ESCAP Panel on Tropical Cyclones Annual Review 2011|publisher=India Meteorological Department|accessdate=July 25, 2023|editor=B.K. Bandyopadhyay|url=https://rsmcnewdelhi.imd.gov.in/report.php?internal_menu=Mjk=}} *June 18–22 – A [tornado outbreak](/source/tornado_outbreak_of_June_18%E2%80%9322%2C_2011) across the central United States resulted in US$1.5 billion in damage and three deaths. *June 19–22 – [Hurricane Beatriz](/source/Hurricane_Beatriz_(2011)) killed four people when it hit southern Mexico.{{cite report|url=https://www.nhc.noaa.gov/data/tcr/EP022011_Beatriz.pdf|title=Hurricane Beatriz Tropical Cyclone Report|publisher=National Hurricane Center|date=October 27, 2011|access-date=July 18, 2023|first=Todd B. | last =Kimberlain}} *June 20–27 – [Tropical Storm Meari](/source/Tropical_Storm_Meari_(2011)) moved from the Philippine Sea to the East China Sea, with 12 fatalities in the Philippines. *June 28–July 1 – [Tropical Storm Arlene](/source/Tropical_Storm_Arlene_(2011)) struck the gulf coast of Mexico, killing 22 people.{{cite report|url={{NHC TCR url|id=AL012011_Arlene}}|title=Tropical Storm Arlene Tropical Cyclone Report|publisher=National Hurricane Center|access-date=July 7, 2023|last=Beven | first = John}} ===July=== *July 10–11 – A [derecho](/source/July_2011_Midwest_derecho) moved across the central United States, killing two people and leaving US$1.2 billion in damage. *July 24–31 – [Tropical Storm Nock-ten](/source/Tropical_Storm_Nock-ten) hit the Philippines, China, and later Vietnam, resulting in at least 77 fatalities along its path. *July 27–August 9 – [Typhoon Muifa](/source/Typhoon_Muifa_(2011)) moved across the western Pacific, eventually striking near the border of China and North Korea; it killed eight people in the Philippines. ===August=== *August 2–7 – While [Tropical Storm Emily](/source/Tropical_Storm_Emily_(2011)) moved through the Caribbean, a man died from electrocution related to a downed wire.{{cite report|url={{NHC TCR url|id=AL052011_Emily}}|title=Tropical Cyclone Report Tropical Storm Emily (AL052011): 2–7 August 2011|last1=Kimberlain|first1=Todd B|last2=Cangialosi|first2=John P.|date=2012-01-13|publisher=National Hurricane Center|issue=|doi=|volume=|pmid=|access-date=July 7, 2023|format=PDF}} *August 19–22 – [Tropical Storm Harvey](/source/Tropical_Storm_Harvey_(2011)) struck Belize and Mexico, killing five people in the latter country.{{cite report|first=Eric S. | last = Blake|date=November 30, 2011|title=Tropical Storm Harvey Tropical Cyclone Report|access-date=July 7, 2023|url={{NHC TCR url|id=AL082011_Harvey}}|format=PDF|publisher=National Hurricane Center}} *August 21–28 – [Hurricane Irene](/source/Hurricane_Irene) moved through the Caribbean and up the East Coast of the United States, killing 48 people and leaving US$13.5 billion in damage.{{cite report|last1=Avila | first1 = Lixion A.| last2=Cangialosi | first2 = John|date=December 14, 2011|title=Tropical Cyclone Report: Hurricane Irene: August 21 – 28, 2011|publisher=United States National Oceanic and Atmospheric Administration's National Weather Service|format=PDF|work=National Hurricane Center|access-date=July 19, 2015|url={{NHC TCR url|id=AL092011_Irene}}|url-status=live|archive-url=https://web.archive.org/web/20240518194722/https://www.nhc.noaa.gov/data/tcr/AL092011_Irene.pdf|archive-date=May 18, 2024}}{{cite report|archive-date=January 27, 2018|url-status=live|date=January 12, 2018|title=Costliest U.S. tropical cyclones tables update|access-date=January 12, 2018|publisher=United States National Hurricane Center|url=https://www.nhc.noaa.gov/news/UpdatedCostliest.pdf|archive-url=https://web.archive.org/web/20180127083930/https://www.nhc.noaa.gov/news/UpdatedCostliest.pdf|df=mdy-all}} *August 21–31 – [Typhoon Nanmadol](/source/Typhoon_Nanmadol_(2011)) brushed the northern Philippines before striking Taiwan and mainland China. There were 36 fatalities in the Philippines. *August 29–September 10 – [Hurricane Katia](/source/Hurricane_Katia_(2011)) killed four people as it moved around the Atlantic Ocean through the British Isles.{{cite report|first=Stacy R. | last = Stewart|title=Tropical Cyclone Report: Hurricane Katia|url=http://www.nhc.noaa.gov/data/tcr/AL122011_Katia.pdf|publisher=National Hurricane Center|date=January 16, 2012|access-date=October 7, 2016}}{{cite news| first=Saul | last =Saenz|title=Tampa man killed while swimming at Ormond Beach|url=http://www.baynews9.com/content/news/baynews9/news/article.html/content/news/articles/ot/both/2011/09/05/Tampa_man_killed_while_swimming_at_Ormond_Beach.html|newspaper=Bay News 9|date=September 4, 2011|access-date=October 13, 2016|archive-url=https://web.archive.org/web/20170122114823/http://www.baynews9.com/content/news/baynews9/news/article.html/content/news/articles/ot/both/2011/09/05/Tampa_man_killed_while_swimming_at_Ormond_Beach.html|archive-date=January 22, 2017|url-status=dead}}{{cite news| first=Abigail | last = Curtis|title=Search suspended for man swept to sea off Monhegan Island|url=http://bangordailynews.com/2011/09/11/news/midcoast/search-suspended-for-man-swept-to-sea-off-monhegan-island/|newspaper=Bangor Daily News|date=September 11, 2011|access-date=October 13, 2016}} ===September=== *September 2–7 – [Tropical Storm Lee](/source/Tropical_Storm_Lee_(2011)) struck Louisiana and later produced widespread flooding across the northeastern United States. The storm killed 21 people and damaged more than 5,000 houses, incurring about $2.5 billion in damage.{{cite web|title=U.S. Billion-Dollar Weather and Climate Disasters|year=2023|accessdate=July 3, 2023|publisher=National Centers for Environmental Information|url=https://www.ncei.noaa.gov/access/billions/events/US/2011?disasters}}{{cite report |last=Brown|first=Daniel P. |title=Tropical Cyclone Report: Tropical Storm Lee|url={{NHC TCR url|id=AL132011_Lee}} |publisher=National Hurricane Center |date=15 December 2011|access-date=28 February 2021}} *September 7–12 – [Hurricane Nate](/source/Hurricane_Nate_(2011)) struck the Mexican state of Veracruz, killing five people.{{cite report| first=Todd B.|last = Kimberlain|title=Tropical Cyclone Report: Hurricane Nate|url={{NHC TCR url|id=AL152011_Nate}}|publisher=National Oceanic and Atmospheric Administration|work=National Hurricane Center|date=November 18, 2011|access-date=February 26, 2014|format=PDF|location=Miami, Florida}} *September 22–23 – A [depression](/source/2011_North_Indian_Ocean_cyclone_season) dropped heavy rainfall across eastern India, killing 38 people.{{cite web|publisher=Outlook India|date=September 28, 2011|access-date=November 11, 2011|title=Orissa Flood Toll Mounts to 38, Relief Operation Begins|url=http://news.outlookindia.com/items.aspx?artid=736543|archive-url=https://web.archive.org/web/20120614061349/http://news.outlookindia.com/items.aspx?artid=736543|archive-date=June 14, 2012|url-status=dead|df=mdy-all}} *September 24–30 – [Typhoon Nesat](/source/Typhoon_Nesat_(2011)) moved through the Philippines and later struck China. In the Philippines, the typhoon killed 85 people and left ₱15.6 billion (US$356 million) in damage. *September 26–October 5 – [Typhoon Nalgae](/source/Typhoon_Nalgae_(2011)) followed Nesat just days later, striking the Philippines and southern China, killing 17 people. ===October=== *October 6–12 – [Hurricane Jova](/source/Hurricane_Jova_(2011)) moved ashore southwestern Mexico, leading to nine fatalities.{{cite web |last1=Brennan |first1=Michael |title=Tropical Cyclone Report: Hurricane Jova (EP102011) |url=https://www.nhc.noaa.gov/data/tcr/EP102011_Jova.pdf |publisher=National Hurricane Center |access-date=July 18, 2023 |date=May 18, 2012}} *October 9–14 – [Tropical Storm Banyan](/source/2011_Pacific_typhoon_season) moved through the Philippines, killing ten people. *October 12 – [Tropical Depression Twelve-E](/source/Tropical_Depression_Twelve-E_(2011)) made landfall in southeastern Mexico, producing heavy rainfall across Central America as part of a broader monsoonal system. The floods killed at least 36 people across the region.{{cite report|url=https://www.nhc.noaa.gov/data/tcr/EP122011_Twelve-E.pdf|format=PDF|publisher=National Hurricane Center|date=January 5, 2012|author=Todd B. Kimberlain|title=Tropical Cyclone Report:Tropical Depression Twelve-E (EP122011)|accessdate=July 18, 2023}} *October 19–20 – A [deep depression](/source/2011_North_Indian_Ocean_cyclone_season) struck Bangladesh, with its heavy rains causing floods in Myanmar that killed at least 215 people.{{cite web|author=Than Win Htut|publisher=Democratic Voice of Burma|date=October 24, 2011|access-date=November 11, 2011|title=Burma flooding deaths top 200|url=http://www.dvb.no/news/burma-flooding-deaths-top-200/18344|archive-url=https://web.archive.org/web/20111229070738/http://www.dvb.no/news/burma-flooding-deaths-top-200/18344|archive-date=December 29, 2011|url-status=dead}} *October 29–November 4 – [Cyclone Keila](/source/Cyclone_Keila) developed and looped just off the coast of Oman, causing flash floods that killed 14 people, as well as another five deaths due to a shipwreck.{{cite news|last=BNO News|title=Keila kills 14, injures hundreds in Oman|url=http://channel6newsonline.com/2011/11/tropical-storm-keila-kills-14-injures-hundreds-in-oman/|access-date=April 19, 2016|newspaper=Channel 6 News|date=November 4, 2011|archive-url=https://web.archive.org/web/20120406132259/http://channel6newsonline.com/2011/11/tropical-storm-keila-kills-14-injures-hundreds-in-oman/|archive-date=April 6, 2012}}{{cite news|last=Vaidya|first=Sunil K.|title=Nine sailors missing as an Indian ship sinks|url=http://gulfnews.com/news/gulf/oman/nine-sailors-missing-as-indian-ship-sinks-off-oman-coast-1.924666|access-date=7 November 2011|newspaper=Gulf News|date=November 5, 2011}} ===November=== *November 7–10 – An unusual [Mediterranean tropical-like cyclone](/source/Mediterranean_tropical-like_cyclone), named [Tropical Storm Rolf](/source/Tropical_Storm_Rolf), struck France, killing 12 people.{{cite news|url=https://weather.com/news/weather/news/medicane-tropical-storm-mediterranean-sea-31oct2016|title=Halloween Surprise: Rare Tropical Storm Forms in Mediterranean Sea|first=Jon | last = Erdman|website=weather.com|publisher=[The Weather Company](/source/The_Weather_Company)|date=October 31, 2016|access-date=April 23, 2017}}{{cite journal|title=Sensitivity of a Mediterranean Tropical-Like Cyclone to Different Model Configurations and Coupling Strategies|journal=Atmosphere|volume=8|issue=12|pages=92|last1=Mazon | first1 = J.| last2=Lupo | first2 = A.|publisher=MDPI|date=20 May 2017|doi=10.3390/atmos8050092|bibcode=2017Atmos...8...92R|doi-access=free|url=https://iris.unito.it/bitstream/2318/1721910/1/2017-ricchi_et_al-Sensitivity_of_Mediterranean_TLC_to_model_configurations-atmosphere.pdf}} *November 8–11 – Rip currents from [Tropical Storm Sean](/source/2011_Atlantic_hurricane_season) killed a swimmer along the east coast of Florida.{{cite web|url=https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=347093|title=Martin County Event Report|accessdate=July 18, 2023|publisher=National Climatic Data Center}} *November 26–December 1 – A developing [deep depression](/source/2011_North_Indian_Ocean_cyclone_season) in the Arabian Sea produced gusty winds and heavy rainfall over Sri Lanka, killing 20 people.{{cite report|at=ReliefWeb|accessdate=July 25, 2023|title=Inclement weather kills 20 people and leave thousands homelesswork=Sri Lanka Red Cross |date=November 28, 2011|url=https://reliefweb.int/report/sri-lanka/inclement-weather-kills-20-people-and-leave-thousands-homeless}} ===December=== *December 13–19 – [Tropical Storm Washi](/source/Tropical_Storm_Washi) moved through the southern Philippines, killing 1,257 people and wrecking 13,337 houses.{{cite report|date=January 6, 2012|accessdate=July 24, 2023|url=https://reliefweb.int/report/philippines/2011-top-10-philippine-destructive-tropical-cyclones|at=ReliefWeb|work=Government of the Philippines|title=2011 Top 10 Philippine Destructive Tropical Cyclones}} *December 20–22 – Rains from a [subtropical depression](/source/2011%E2%80%9312_South-West_Indian_Ocean_cyclone_season) in the Mozambique Channel caused floods in Tanzania, resulting in 43 fatalities.{{Cite web| url=https://www.wmo.int/pages/prog/www/tcp/documents/ra1_tcc-20_final_report_en.pdf | title=RA I Tropical cyclone committee for the South-West Indian Ocean twentieth session | access-date=December 6, 2015 | archive-date=March 3, 2016 | archive-url=https://web.archive.org/web/20160303224719/http://www.wmo.int/pages/prog/www/tcp/documents/ra1_tcc-20_final_report_en.pdf | url-status=dead}} *December 25–31 – [Cyclone Thane](/source/Cyclone_Thane) struck southeastern India, wrecking thousands of boats and houses, resulting in 46 deaths and damage estimated at over ₹1.3 billion (US$235 million). ==References== {{reflist}} {{Weather by year |year = 2011 }} Category:Meteorological events in 2011 Category:Weather by year Category:2011-related lists --- Adapted from the Wikipedia article [Weather of 2011](https://en.wikipedia.org/wiki/Weather_of_2011) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Weather_of_2011?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.