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Huambo (landform)
Huambo is a monogenetic volcanic field in the Arequipa Region of southern Peru, east of Sabancaya, whose Cerro Keyocc cone last erupted about 2,650 years ago.
Hubbard Glacier
Hubbard Glacier is a tidewater glacier in southeast Alaska flowing into Disenchantment Bay and Russell Fiord near Yakutat, the largest tidewater glacier in North America, which has advanced rather than retreated since 1895.
Hudbay Minerals
Hudbay Minerals Inc. is a Canadian mining company headquartered in Toronto that produces copper, zinc, gold, and silver from operations in Manitoba, British Columbia, and Peru.
Humboldt Current
The Humboldt Current, also called the Peru Current, flows northward along the coasts of Chile, Peru, and Ecuador, driving one of Earth's most productive marine ecosystems.
Humeros, Los
Los Humeros is a large Pleistocene-Holocene silicic caldera complex in the Trans-Mexican Volcanic Belt, Puebla, Mexico, hosting one of the country's operating geothermal fields since 1990.
Humid continental climate
The humid continental climate, also called temperate continental, is a mid-latitude Köppen D climate with warm to hot summers, severe winters, and no dry season, typical of northeastern North America and eastern Europe and Asia.
Humid subtropical climate
A humid subtropical climate, designated Cfa or Cwa in the Köppen classification, has hot, humid summers and cool winters, occurring on east coasts of continents between 20° and 40° latitude.
Humidex
The Humidex is a Canadian index combining air temperature and humidity into a single number for how hot humid weather feels, used officially by Environment Canada.
Humidity
Humidity, also called atmospheric humidity, is the water vapor content of the air, popularly expressed as relative humidity and also measured as specific humidity and dew point.
HURDAT
HURDAT, in its current HURDAT2 form, is the official best-track database of Atlantic tropical and subtropical cyclones maintained by NOAA's National Hurricane Center since 1851.
Huronian glaciation
The Huronian glaciation, or Makganyene glaciation, was a series of ice ages between about 2.4 and 2.1 billion years ago, the first widespread glaciation in Earth's history.
Huronian Supergroup
The Huronian Supergroup is a Paleoproterozoic succession of sedimentary and volcanic rocks along the north shore of Lake Huron, Ontario, deposited about 2.45 to 2.31 billion years ago.
Hurricane Alex (2016)
Hurricane Alex was an unusual January 2016 Atlantic hurricane, the first to form in January since 1938. It reached Category 1 strength and struck the Azores as a tropical storm.
Hurricane Allen
Hurricane Allen was a Cape Verde hurricane of August 1980 that reached Category 5 intensity three times, set the Atlantic wind record of 190 mph, and struck Texas near Brownsville.
Hurricane Analysis and Forecast System (HAFS)
The Hurricane Analysis and Forecast System (HAFS) is NOAA's next-generation hurricane forecasting model, operational since June 2023, whose storm-following nest improved track predictions by 10 to 15% in testing.
Hurricane Andrew
Hurricane Andrew, also known as Cyclone Andrew, was a Category 5 hurricane that struck the Bahamas, Florida, and Louisiana in August 1992, killing 65 people and causing about $25 billion in damage.
Hurricane Barry (2019)
Hurricane Barry was a minimal Category 1 hurricane, the first of the 2019 Atlantic season, that made landfall on the Louisiana coast on July 13, 2019, causing severe flooding.
Hurricane Beryl
Hurricane Beryl was an extremely intense 2024 Atlantic hurricane and the earliest Category 5 on record, causing catastrophic damage in Grenada and a prolonged Houston power outage.
Hurricane Betsy
Hurricane Betsy, nicknamed "Billion Dollar Betsy," was a 1965 Category 4 hurricane that flooded New Orleans and became the first US hurricane to cause over $1 billion in damage.
Hurricane Camille
Hurricane Camille was a Category 5 hurricane that struck the Mississippi Gulf Coast with 175 mph winds in August 1969, causing catastrophic flooding in Virginia.
Hurricane Carmen
Hurricane Carmen was a powerful 1974 Atlantic hurricane that peaked twice as a Category 4 and struck Louisiana as a Category 3 on September 8, causing about 150 million dollars of damage.
Hurricane Catarina
Hurricane Catarina, also called Cyclone Catarina, was a rare South Atlantic tropical cyclone that struck southern Brazil in March 2004, killing three people and causing about US$350 million in damage.
Hurricane Charley
Hurricane Charley was a small but powerful Category 4 hurricane that struck southwestern Florida on August 13, 2004, with 150 mph winds after rapidly intensifying.
Hurricane David
Hurricane David was a powerful 1979 Atlantic hurricane that devastated Dominica and struck the Dominican Republic near Santo Domingo at peak intensity, killing over 1,200 people and leaving 200,000 homeless.
Hurricane Dean
Hurricane Dean was a powerful 2007 Atlantic hurricane that struck the Yucatan Peninsula on 21 August as a category 5, the first category 5 landfall since Andrew in 1992.
Hurricane Debby
Hurricane Debby was a Category 1 hurricane, the second of the 2024 Atlantic season, that struck Florida's Big Bend in August 2024, causing 12 deaths and about $2.5 billion in damage.
Hurricane Donna
Hurricane Donna was a powerful 1960 Cape Verde hurricane that crossed the Leeward Islands, the Bahamas, the Florida Keys, and the US East Coast, killing at least 364 people.
Hurricane Dorian
Hurricane Dorian was a Category 5 Atlantic hurricane, the strongest on record to strike the Bahamas, which devastated Abaco and Grand Bahama in September 2019 before its name was retired.
Hurricane Erick
Hurricane Erick was a category 4 eastern Pacific hurricane that made landfall in Oaxaca, Mexico, as a category 3 on 19 June 2025, killing at least 2 people.
Hurricane Erin (2025)
Hurricane Erin was the first hurricane of the 2025 Atlantic season, a long-lived Cape Verde hurricane that peaked as a Category 5 storm and never made landfall.