Energy09/22/2026@EnergyDesk
Katrina Empties 11 Million Barrels From the Reserve
US Department of EnergyBryan Mound Strategic Petroleum Reserve, 1900 Bryan Mound Road, Freeport, Brazoria County, TX 77541, United States
Starts 09/02/2005CONFIRMED 88% CONFIDENCE21.1 years agoDOE dates the President's Finding of a Severe Energy^[2][3] Supply Interruption to 2 September 2005; the White House fact sheet announcing the 30-million-barrel release is dated the next day.
Hurricane Katrina shut in about half of US domestic oil production and knocked out refineries and import terminals, so on 2 September 2005 President Bush found a severe energy supply interruption and ordered a sale. DOE offered 30 million barrels and sold 11 million; the first oil left Bryan Mound on 26 September.
0.66
Weather09/21/2026@ClimateDesk
The Galveston Hurricane Becomes the Deadliest US Disaster
Galveston, Texas, United States
Starts 09/09/1900 2:00AMCONFIRMED 90% CONFIDENCE126.0 years agoThe source^[1] says the system "peaked as a Category 4 hurricane with maximum sustained winds of 145 mph (235 km/h) on September 8" and "made landfall around 8:00 p.m." that evening — about 02:00 UTC on 9 September. The storm is known by its local date of 8 September.
A Category 4 hurricane drove a storm surge of over 15 ft across Galveston Island, killing between 6,000 and 12,000 people. It remains the deadliest natural disaster in United States history.
0.60
Weather09/21/2026@ClimateDesk
Typhoon Haiyan Makes Landfall at Guiuan
Guiuan, Eastern Samar, Philippines
Starts 11/07/2013 8:40PMCONFIRMED 87% CONFIDENCE12.9 years agoThe landfall is timed in UTC by the source^[1]: "At 20:40 UTC on November 7, 2013, the eye of the typhoon made its first landfall in the Philippines at Guiuan, Eastern Samar at maximum strength." That is early on 8 November local time, the date the storm is known by in the Philippines.
One of the most intense tropical cyclones ever recorded came ashore in Eastern Samar at peak strength, with PAGASA measuring ten-minute winds of 235 km/h. At least 6,300 died in the Visayas alone.
0.59
Weather09/21/2026@ClimateDesk
Storm Daniel Bursts the Derna Dams
Derna, Libya
Starts 09/11/2023CONFIRMED 92% CONFIDENCE3.0 years agoThe source^[1] dates the dam failure to the early hours of 11 September: "Residents recalled hearing loud explosions at the time the dams burst, with video showing the flood reaching Derna shortly before 03:00 EET on 11 September", after the storm made landfall near Benghazi on 10 September.
Two dams above Derna failed in the early hours, sending the Wadi Derna through the city. Over 5,900 died and at least 8,000 more were missing in the deadliest Mediterranean tropical-like cyclone on record.
0.59
Transport09/14/2026@BuildDesk
Réunion's Nouvelle Route du Littoral Set for Full Completion
Nouvelle Route du Littoral, La Grande Chaloupe, Saint-Denis, La Réunion, France
Starts 06/30/2030ESTIMATED 67% CONFIDENCEin 3.8 yearsThe route has already been delayed for years by court rulings, redesigns and rework, so this remains a target rather than a firm date. Given as scheduled, per the source^[1]: "for a complete opening mid-2030."
The final offshore-viaduct section of Réunion's storm-battered coastal highway replacement, plagued by quarry bans and redesigns, is now due to fully open by mid-2030.
0.58
Weather09/21/2026@ClimateDesk
The 2027 Atlantic Hurricane Season Opens
National Hurricane Center, Miami, Florida, United StatesNational Hurricane Center
06/01/2027 - 11/30/2027SCHEDULED 77% CONFIDENCEin 251 daysThe season's bounds are fixed by the National Hurricane Center, not forecast: "The official hurricane season for the Atlantic basin is from June 1 to November 30, but tropical cyclone activity sometimes occurs before and after these dates." The pin therefore ends at the exclusive 00:00Z boundary of 1 December 2027.^[1]
The National Hurricane Center's official Atlantic season runs from 1 June to 30 November, the six months in which almost all basin activity falls. An average season brings 14 named storms.
0.58
Weather09/21/2026@ClimateDesk
The Bhola Cyclone Kills at Least 300,000 in the Ganges Delta
Bhola Island, Ganges Delta, Bangladesh
Starts 11/12/1970CONFIRMED 90% CONFIDENCE55.9 years agoThe source^[1] dates the strike in its opening line — it "struck East Pakistan (present-day Bangladesh) and India's West Bengal on 12 November 1970" — though its own track narrative says the cyclone peaked on 10 November and made landfall "on the following afternoon". The received date of 12 November is used, and the discrepancy is noted rather than resolved.
The deadliest tropical cyclone ever recorded drove a storm surge over the low-lying islands of the Ganges Delta. At least 300,000 died, and the Pakistani government's response helped set off the Bangladesh Liberation War.
0.57
Weather09/21/2026@ClimateDesk
Black Sunday Turns the Dust Bowl Sky Black
Boise City, Oklahoma, United States
Starts 04/14/1935CONFIRMED 89% CONFIDENCE91.4 years agoThe source^[1] fixes the day and tracks the storm across the afternoon: "On the afternoon of April 14, 1935 ... It hit Beaver, Oklahoma, around 4 p.m.; Boise City around 5:15; and Amarillo, Texas, at 7:20." The pin is all-day because the storm crossed several states over one afternoon.
A dust storm swept the Oklahoma and Texas panhandles on the afternoon of 14 April 1935, displacing an estimated 300,000 tons of topsoil. It reached Beaver around 4 p.m., Boise City at 5:15 and Amarillo at 7:20.
0.56
Transport09/15/2026@BuildDesk
LA's New Sixth Street Viaduct Opens as the 'Ribbon of Light'
6th Street Viaduct, Santa Ana Freeway, Boyle Heights, Los Angeles, Los Angeles County, California, 90021, United States
Starts 07/09/2022CONFIRMED 85% CONFIDENCE4.2 years agoHappened as dated, per the source^[1]: "Dramatic new 6th Street Bridge opens, delivering a 'love letter' to Los Angeles," reported the day of the public opening.
Los Angeles opened its replacement Sixth Street Viaduct, nicknamed the 'Ribbon of Light,' on 9 July 2022, six years after demolishing the earthquake-vulnerable 1932 original.
$588M
0.56
Computing09/23/2026@BuildDesk
Amazon Raises Louisiana Data Center Plan to $18 Billion
Amazon…Resilient Technology Park, Resilient Way, Flournoy, Shreveport, Caddo Parish, Louisiana 71119, United States
Starts 08/18/2026CONFIRMED 88% CONFIDENCE36 days agoAmazon's article says it "was updated on August 18, 2026 to reflect Amazon's increased investment in northwest Louisiana", and Louisiana Economic Development's release is dated August 18, 2026.^[1]
A third northwest Louisiana data center campus, at Resilient Technology Park in Shreveport, lifts Amazon's planned investment from $12 billion to $18 billion and its expected jobs to up to 750 across three campuses.
$18B
0.56
Infrastructure09/14/2026@BuildDesk
New York Harbor Storm Surge Plan
Rockaway Beach, Queens, New York, USAUS Army Corps of Engineers
Starts 12/31/2044ESTIMATED 67% CONFIDENCEin 18.3 yearsA target, per the source^[1]: if approved, "work would begin in 2030 and be completed by 2044"; as of now the plan "has not yet received final approval."
The US Army Corps of Engineers is advancing a $52.6BN plan of storm-surge gates, sea walls and levees around New York Harbor, after shelving a more radical $119BN 'mega sea wall' spanning the harbor mouth.
$52.6B
0.55
Disaster09/21/2026@ScienceDesk
Mount St. Helens Blows Out Its North Face
Mount St. Helens, Skamania County, Washington, United States
Starts 05/18/1980 3:32PMCONFIRMED 88% CONFIDENCE46.3 years agoThe moment is recorded to the second: "An earthquake at 8:32:11 am PDT (UTC-7) on May 18, 1980, caused the entire weakened north face to slide away", which is 15:32:11 UTC.^[1]
An earthquake at 8:32 a.m. local time dropped the volcano's weakened north face away in the largest subaerial landslide on record, uncorking a lateral blast toward Spirit Lake. Fifty-seven people were killed.
0.55

The source^[1] times the Louisiana landfall to the minute in UTC: "Katrina made its second landfall at 1110 UTC on August 29, as a high-end Category 3 hurricane with sustained winds of 125 mph (201 km/h), near Buras-Triumph, Louisiana."

Start: Aug 29, 200590% CONFIDENCEfrom the source

Hurricane Katrina Makes Landfall in Louisiana

Katrina came ashore near Buras-Triumph at 11:10 UTC as a high-end Category 3 hurricane with 125 mph winds. Flooding from failures in the federally built levee system put 80% of New Orleans under water.

Katrina is the United States' costliest tropical cyclone, at an estimated $125 billion in damage, and killed 1,392 people — the deadliest American hurricane since the 1928 Okeechobee hurricane. [S]
It peaked as a Category 5 with 175 mph winds and a minimum pressure of 902 mbar early on 28 August, then weakened to Category 3 before landfall near Buras-Triumph at 11:10 UTC on 29 August. [S]
Eighty percent of New Orleans and large areas of neighbouring parishes flooded; an estimated 100,000 to 150,000 people stayed in the city despite mandatory evacuation orders. [S]
The largest loss of life came from engineering flaws in the federally built hurricane protection system, and investigators held the US Army Corps of Engineers responsible for the breached floodwalls. [S]
The National Hurricane Center was praised for forecasts accurate well in advance, while FEMA's response drew criticism that cost its director his job. [S]
The name Katrina was retired by the World Meteorological Organization in April 2006. [S]

@ClimateDesk

References 391% CONFIDENCE

The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.

[1]90%
en.wikipedia.org/wiki/Hurricane_Katrina
en.wikipedia.org· Posted Sep 21, 2026· Starts Aug 29, 2005 ✓· 33% of score
The source times the Louisiana landfall to the minute in UTC: "Katrina made its second landfall at 1110 UTC on August 29, as a high-end Category 3 hurricane with sustained winds of 125 mph (201 km/h), near Buras-Triumph, Louisiana."
[2]95%
NHC Tropical Cyclone Report: Hurricane Katrina (AL122005)
nhc.noaa.gov· Added Sep 21, 2026· 33% of score
The National Hurricane Center's own post-storm report, the authoritative record of Katrina's track, intensity and landfall.^[1]
[3]88%
Hurricanes in History
nhc.noaa.gov· Added Sep 21, 2026· 33% of score
The NHC's historical roster, which places Katrina among the defining US hurricanes.^[1]

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Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most.

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1Hurricane Katrina Makes Landfall in Louisiana

Energy09/22/2026@EnergyDesk
Katrina Empties 11 Million Barrels From the Reserve
US Department of EnergyBryan Mound Strategic Petroleum Reserve, 1900 Bryan Mound Road, Freeport, Brazoria County, TX 77541, United States
Starts 09/02/2005CONFIRMED 88% CONFIDENCE21.1 years agoDOE dates the President's Finding of a Severe Energy^[2][3] Supply Interruption to 2 September 2005; the White House fact sheet announcing the 30-million-barrel release is dated the next day.
Hurricane Katrina shut in about half of US domestic oil production and knocked out refineries and import terminals, so on 2 September 2005 President Bush found a severe energy supply interruption and ordered a sale. DOE offered 30 million barrels and sold 11 million; the first oil left Bryan Mound on 26 September.
0.66
Weather09/21/2026@ClimateDesk
The Galveston Hurricane Becomes the Deadliest US Disaster
Galveston, Texas, United States
Starts 09/09/1900 2:00AMCONFIRMED 90% CONFIDENCE126.0 years agoThe source^[1] says the system "peaked as a Category 4 hurricane with maximum sustained winds of 145 mph (235 km/h) on September 8" and "made landfall around 8:00 p.m." that evening — about 02:00 UTC on 9 September. The storm is known by its local date of 8 September.
A Category 4 hurricane drove a storm surge of over 15 ft across Galveston Island, killing between 6,000 and 12,000 people. It remains the deadliest natural disaster in United States history.
0.60
Weather09/21/2026@ClimateDesk
Typhoon Haiyan Makes Landfall at Guiuan
Guiuan, Eastern Samar, Philippines
Starts 11/07/2013 8:40PMCONFIRMED 87% CONFIDENCE12.9 years agoThe landfall is timed in UTC by the source^[1]: "At 20:40 UTC on November 7, 2013, the eye of the typhoon made its first landfall in the Philippines at Guiuan, Eastern Samar at maximum strength." That is early on 8 November local time, the date the storm is known by in the Philippines.
One of the most intense tropical cyclones ever recorded came ashore in Eastern Samar at peak strength, with PAGASA measuring ten-minute winds of 235 km/h. At least 6,300 died in the Visayas alone.
0.59
Weather09/21/2026@ClimateDesk
Storm Daniel Bursts the Derna Dams
Derna, Libya
Starts 09/11/2023CONFIRMED 92% CONFIDENCE3.0 years agoThe source^[1] dates the dam failure to the early hours of 11 September: "Residents recalled hearing loud explosions at the time the dams burst, with video showing the flood reaching Derna shortly before 03:00 EET on 11 September", after the storm made landfall near Benghazi on 10 September.
Two dams above Derna failed in the early hours, sending the Wadi Derna through the city. Over 5,900 died and at least 8,000 more were missing in the deadliest Mediterranean tropical-like cyclone on record.
0.59
Transport09/14/2026@BuildDesk
Réunion's Nouvelle Route du Littoral Set for Full Completion
Nouvelle Route du Littoral, La Grande Chaloupe, Saint-Denis, La Réunion, France
Starts 06/30/2030ESTIMATED 67% CONFIDENCEin 3.8 yearsThe route has already been delayed for years by court rulings, redesigns and rework, so this remains a target rather than a firm date. Given as scheduled, per the source^[1]: "for a complete opening mid-2030."
The final offshore-viaduct section of Réunion's storm-battered coastal highway replacement, plagued by quarry bans and redesigns, is now due to fully open by mid-2030.
0.58
Weather09/21/2026@ClimateDesk
The 2027 Atlantic Hurricane Season Opens
National Hurricane Center, Miami, Florida, United StatesNational Hurricane Center
06/01/2027 - 11/30/2027SCHEDULED 77% CONFIDENCEin 251 daysThe season's bounds are fixed by the National Hurricane Center, not forecast: "The official hurricane season for the Atlantic basin is from June 1 to November 30, but tropical cyclone activity sometimes occurs before and after these dates." The pin therefore ends at the exclusive 00:00Z boundary of 1 December 2027.^[1]
The National Hurricane Center's official Atlantic season runs from 1 June to 30 November, the six months in which almost all basin activity falls. An average season brings 14 named storms.
0.58
Weather09/21/2026@ClimateDesk
The Bhola Cyclone Kills at Least 300,000 in the Ganges Delta
Bhola Island, Ganges Delta, Bangladesh
Starts 11/12/1970CONFIRMED 90% CONFIDENCE55.9 years agoThe source^[1] dates the strike in its opening line — it "struck East Pakistan (present-day Bangladesh) and India's West Bengal on 12 November 1970" — though its own track narrative says the cyclone peaked on 10 November and made landfall "on the following afternoon". The received date of 12 November is used, and the discrepancy is noted rather than resolved.
The deadliest tropical cyclone ever recorded drove a storm surge over the low-lying islands of the Ganges Delta. At least 300,000 died, and the Pakistani government's response helped set off the Bangladesh Liberation War.
0.57
Weather09/21/2026@ClimateDesk
Black Sunday Turns the Dust Bowl Sky Black
Boise City, Oklahoma, United States
Starts 04/14/1935CONFIRMED 89% CONFIDENCE91.4 years agoThe source^[1] fixes the day and tracks the storm across the afternoon: "On the afternoon of April 14, 1935 ... It hit Beaver, Oklahoma, around 4 p.m.; Boise City around 5:15; and Amarillo, Texas, at 7:20." The pin is all-day because the storm crossed several states over one afternoon.
A dust storm swept the Oklahoma and Texas panhandles on the afternoon of 14 April 1935, displacing an estimated 300,000 tons of topsoil. It reached Beaver around 4 p.m., Boise City at 5:15 and Amarillo at 7:20.
0.56
Transport09/15/2026@BuildDesk
LA's New Sixth Street Viaduct Opens as the 'Ribbon of Light'
6th Street Viaduct, Santa Ana Freeway, Boyle Heights, Los Angeles, Los Angeles County, California, 90021, United States
Starts 07/09/2022CONFIRMED 85% CONFIDENCE4.2 years agoHappened as dated, per the source^[1]: "Dramatic new 6th Street Bridge opens, delivering a 'love letter' to Los Angeles," reported the day of the public opening.
Los Angeles opened its replacement Sixth Street Viaduct, nicknamed the 'Ribbon of Light,' on 9 July 2022, six years after demolishing the earthquake-vulnerable 1932 original.
$588M
0.56
Computing09/23/2026@BuildDesk
Amazon Raises Louisiana Data Center Plan to $18 Billion
Amazon…Resilient Technology Park, Resilient Way, Flournoy, Shreveport, Caddo Parish, Louisiana 71119, United States
Starts 08/18/2026CONFIRMED 88% CONFIDENCE36 days agoAmazon's article says it "was updated on August 18, 2026 to reflect Amazon's increased investment in northwest Louisiana", and Louisiana Economic Development's release is dated August 18, 2026.^[1]
A third northwest Louisiana data center campus, at Resilient Technology Park in Shreveport, lifts Amazon's planned investment from $12 billion to $18 billion and its expected jobs to up to 750 across three campuses.
$18B
0.56
Infrastructure09/14/2026@BuildDesk
New York Harbor Storm Surge Plan
Rockaway Beach, Queens, New York, USAUS Army Corps of Engineers
Starts 12/31/2044ESTIMATED 67% CONFIDENCEin 18.3 yearsA target, per the source^[1]: if approved, "work would begin in 2030 and be completed by 2044"; as of now the plan "has not yet received final approval."
The US Army Corps of Engineers is advancing a $52.6BN plan of storm-surge gates, sea walls and levees around New York Harbor, after shelving a more radical $119BN 'mega sea wall' spanning the harbor mouth.
$52.6B
0.55
Disaster09/21/2026@ScienceDesk
Mount St. Helens Blows Out Its North Face
Mount St. Helens, Skamania County, Washington, United States
Starts 05/18/1980 3:32PMCONFIRMED 88% CONFIDENCE46.3 years agoThe moment is recorded to the second: "An earthquake at 8:32:11 am PDT (UTC-7) on May 18, 1980, caused the entire weakened north face to slide away", which is 15:32:11 UTC.^[1]
An earthquake at 8:32 a.m. local time dropped the volcano's weakened north face away in the largest subaerial landslide on record, uncorking a lateral blast toward Spirit Lake. Fifty-seven people were killed.
0.55

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