ⓘ Free online encyclopedia. Did you know? page 18




                                               

Hurricane Gert (1999)

Hurricane Gert was the fourth of five major hurricanes in the 1999 Atlantic hurricane season. It formed on September 11 of the coast of Africa. It reached its greatest strength on September 15, when its winds were at 150 mph. It gradually curved ...

                                               

Hurricane Humberto (2007)

Hurricane Humberto formed and strengthened faster than any other tropical cyclone on record within 18 hours of landfall; developing on September 12, 2007 in the northwestern Gulf of Mexico, the cyclone quickly strengthened and struck High Island, ...

                                               

Hurricane Isaac (2012)

Hurricane Isaac was an Atlantic tropical cyclone that killed almost two dozen people in Hispaniola in August 2012 and moved over Cuba and Haiti. Isaac then became a Category One hurricane on August 28 and hit near the southeast tip of Louisiana a ...

                                               

Hurricane Iselle (2014)

Hurricane Iselle was a Pacific tropical cyclone. The storm threatened the islands of Hawaii, especially Hilo. The storm developed on July 31, 2014. Iselle is the first hurricane to hit the islands in 22 years. Iselle approached Hawaii as a powerf ...

                                               

Hurricane Sally

Hurricane Sally was an Atlantic tropical cyclone. The storm threatened the United States Gulf Coast States of Alabama, Mississippi and Louisiana. Sally first developed near the Bahamas, moved over Florida, then became a tropical storm. Tropical s ...

                                               

Tropical Storm Imelda

Tropical Storm Imelda was a weak though very catastrophic 2019 Atlantic tropical cyclone. The storm struck eastern Texas and western Louisiana. Imelda created a very serious flash flood event in both states. It was one of the wettest tropical cyc ...

                                               

Inflow (meteorology)

Inflow is the flow of a fluid into a large collection of that fluid. In meteorology, inflow normally means the influx of warmth and moisture from air within the Earths atmosphere into storm systems. Extratropical cyclones are created by inflow fo ...

                                               

Invest (meteorology)

An invest in meteorology is a labelled area of bad weather that is being looked at for a possible tropical cyclone being made. Invests are labelled by three hurricane centers: the National Hurricane Center, Central Pacific Hurricane Center and Jo ...

                                               

Hurricane Iota

Hurricane Iota was an Atlantic tropical cyclone which formed in November 2020. The hurricane affected Nicaragua and Honduras in Central America. Iota was the first time a 30th named storm had ever developed in the Atlantic Basin. The storm was th ...

                                               

Hurricane Isabel

Hurricane Isabel was the costliest and deadliest hurricane in the 2003 Atlantic hurricane season. It was the ninth named storm, fifth hurricane, and second major hurricane of the season. Isabel formed from a tropical wave in the tropical Atlantic ...

                                               

Hurricane Isaias

Hurricane Isaias was an Atlantic tropical cyclone in July and August 2020. The storm moved over the Leeward Islands, Hispaniola and the Bahamas. Isaias later threatened the East Coast of the United States from Florida to Maine. Isaias first began ...

                                               

Hurricane Ivan

Hurricane Ivan was the strongest hurricane of the 2004 Atlantic hurricane season. The storm formed as a Cape Verde-type hurricane in early September, and became the ninth named storm, the sixth hurricane, and the fourth major hurricane of the yea ...

                                               

January–February 2019 North American cold wave

In late January, 2019, a severe cold wave caused by a polar vortex hit the midwestern United States and eastern Canada and lasted into February. It killed between 8 and 21 people. It came after a winter storm that brought nearly 12 inches of snow ...

                                               

Hurricane Joaquin

Hurricane Joaquin was a strong tropical cyclone. It threatened the Bahamas and the East Coast of the United States. Joaquin became the most powerful cyclone in the Atlantic in 2015. Hurricane Joaquin passed over the warmest ocean temperatures sin ...

                                               

Hurricane Juan (1985)

Hurricane Juan in 1985 was the most costly of all the storms of the hurricane season. It killed about 24 people and caused about Hurricane Juan in 1985 was the most costly of all the storms of the hurricane season. It killed about 24 people and c ...

                                               

Hurricane Kenneth (2005)

Hurricane Kenneth was the strongest hurricane in the 2005 Pacific hurricane season. After the hurricane died out, what was left of Kenneth came near another weather system, and it caused rain on the Hawaiian Islands. Because of the heavy rain, th ...

                                               

Landfall (meteorology)

Landfall is when a tropical cyclone or waterspout moves from being over water to being over land. When a tornadic waterspout makes landfall it can be called a tornado, and can cause damage to buildings and other things made by people. When a fair ...

                                               

Hurricane Lane

Hurricane Lane was a 2018 Pacific hurricane. The storm threatened to hit the U.S. State of Hawaii. It was the first Category 5 hurricane since Hurricane Patricia in October 2015. On August 21, when Lane came close to the Hawaiian Islands, a hurri ...

                                               

Hurricane Lili (2002)

Hurricane Lili was the strongest hurricane during the 2002 Atlantic hurricane season in terms of winds. However, Hurricane Isidore was actually stronger in terms of barometric pressure. Lili had winds of 145 miles an hour at her peak. Thirteen pe ...

                                               

2018 lower Puna eruption

The 2018 lower Puna eruption, which began May 3, 2018 is an ongoing volcanic event on the island of Hawaii on Kīlauea while at the time day, faced a 6.9 earthquake. It caused outbreaks of lava fountains up to 300 feet high, lava flows and volcani ...

                                               

Hurricane Matthew

Hurricane Matthew was an Atlantic hurricane. This storm developed on September 28, 2016. It threatened Jamaica, Cuba, the Dominican Republic and the Bahamas. Matthew hit Haiti on October 4, 2016. It struck Cuba later that evening. The storm was t ...

                                               

Meteorology

Meteorology is the science that focuses on the Earths atmosphere. People who study meteorology are called meteorologists. Meteorologists record air pressure, wind speed and direction, temperature, humidity, weather patterns, and other information ...

                                               

Typhoon Nancy

Super Typhoon Nancy had extremely intense winds near 215 miles an hour, giving her the strongest recorded winds of any tropical cyclone. It happened September 1961. The comparable cyclones of Typhoon Tip, Typhoon Keith, Hurricane Camille and Hurr ...

                                               

Hurricane Nate

Hurricane Nate was a 2017 Atlantic hurricane. The storm developed on October 4, 2017. It was the costliest natural disaster in the history of Costa Rica. It caused heavy damage and fatalities in Central America while a tropical storm. The storm b ...

                                               

Hurricane Noel

Hurricane Noel was the fourteenth named storm and sixth hurricane of the 2007 Atlantic hurricane season. Noel formed on October 27 from the interaction between a tropical wave and an upper-level low in the north-central Caribbean Sea. It strength ...

                                               

Noreaster

A noreaster is a big storm along the East Coast of the United States. A Noreaster is called that because the winds in a Noreaster come from the northeast, especially in the coastal areas of the Northeastern United States and Atlantic Canada. More ...

                                               

Hurricane Odile

Hurricane Odile was a hurricane that happened in mid-September 2014. It made landfall in the Mexican state of Baja California Sur. On September 15, 2014, Odile damaged several luxury resorts in Cabo San Lucas. Parts of several hotels collapsed an ...

                                               

Outflow (meteorology)

Outflow is a term for the air that flows away from a thunderstorm. Lots of outflow show that a storm is "healthy". The "edge" of the outflow boundary can often be detected by weather radar. Convergence occurs along the leading edge of the downdra ...

                                               

Pacific hurricane

A Pacific hurricane is a tropical cyclone that forms in the northeastern part of the Pacific Ocean. For organizational purposes, the Pacific Ocean is divided into three parts: the eastern, central, and western. A Pacific hurricane, then, is a tro ...

                                               

Hurricane–Typhoon Paka

Hurricane Paka was the last tropical cyclone in the 1997 Pacific hurricane and typhoon season, and was among the strongest Pacific typhoons in the month of December. Paka, which is the Hawaiian name for Pat, developed on November 28 from a trough ...

                                               

Hurricane Pauline

Hurricane Pauline was a destructive hurricane of the 1997 Pacific hurricane season and one of the deadliest. Pauline formed in the eastern Pacific on October 6. It strengthened rapidly, reaching category four on the Saffir-Simpson Hurricane Scale ...

                                               

Polar climate

Polar climate has temperatures below 0 °C for much of the year. According to the Koppen climate classification, a polar climate is one in which no monthly average goes above 10 °C. If the temperature is between 0 °C and 10 °C in the warmest month ...

                                               

Polar cyclone

Polar cyclones are large areas of low pressure. They should not be confused with polar lows since people happen to use the same term for polar cyclones. Polar cyclones are usually 1.000 to 2.000 kilometers wide in which the air is moving in a spi ...

                                               

Polar low

A polar low is a small sized and short-lived atmospheric low pressure system that is found over the ocean areas pole ward of the main polar front in both the Northern and Southern Hemispheres. The systems usually have a horizontal length scale of ...

                                               

Precipitation

Precipitation is a form of water from the atmosphere. It is a term in meteorology, and includes rain, snow, sleet, ice pellets dew, frost, and hail. These form by condensation from atmospheric water vapor, and fall under gravity. Fog and mist are ...

                                               

Rain shadow

A rain shadow is an area of land that lies behind a mountain which gets almost no rainfall. This side of a mountainous area is away from the wind. The mountains block the passage of rain-producing weather systems and cast a "shadow" of dryness be ...

                                               

Regional Specialized Meteorological Center

A Regional Specialized Meteorological Centre is responsible for giving out information, advisories, and warnings regarding the specific program they have a part of, agreed by decision at the World Meteorological Organization as part of the World ...

                                               

Relative humidity

Relative humidity is a way of describing how much humidity is present in the air, compared to how much there could be. Meteorologists often use the relative humidity as a measurement to describe the weather at various places. When the temperature ...

                                               

Sea breeze

A sea breeze is a wind from the sea that develops over land near coasts. It is formed by increasing temperature differences between the land and water; these create a pressure minimum over the land due to its relative warmth, and forces higher pr ...

                                               

Cyclone Sidr

Very Severe Cyclonic Storm Sidr was an incredibly powerful and devastating tropical system. It resulted in one of the worst natural disasters in Bangladesh history. Between 3.000 and 10.000 people died because of this extremely powerful cyclone a ...

                                               

Snow

Snow is a form of ice. Snow forms when water in the atmosphere becomes frozen. Snow comes in all different shapes and sizes. At the freezing point of water 0° Celsius, 32° Fahrenheit, snow melts and becomes liquid water. Sometimes, the snow will ...

                                               

St Jude storm

The St. Jude Storm also known as Cyclone Christian, was a severe European windstorm that hit Northwestern Europe from 27 October 2013 to 28 October 2013. The storm caused 17 deaths. Winds of up to 80–90 mph were forecast for southern England, but ...

                                               

Storm surge

A storm surge is a sudden rise of water hitting areas close to the coast. Storm surges are usually created by a hurricane or other tropical cyclone. The surge happens because a storm has fast winds and low atmospheric pressure. Water is pushed on ...

                                               

Subtropical ridge

The subtropical ridge is a large belt of high pressure around 30ºN in the Northern Hemisphere and 30ºS in the Southern Hemisphere. It is characterized by mostly calm winds. Air flows out from its center toward the upper and lower latitudes of eac ...

                                               

Thundersnow

Thundersnow is a thunderstorm with snow instead of rain. This rare kind of weather is less rare around the Midwestern United States, the Great Lakes and Rocky Mountains, the Sea of Japan, and Mount Everest. Thundersnow mostly happens in March.

                                               

Tornado emergency

A tornado emergency is a stronger wording of tornado warnings used by the National Weather Service in the United States. It is used when a large, powerful tornado is in an area with a lot of people. It means that a very large amount of damage and ...

                                               

Tornado outbreak of May 2019

The tornado outbreak of May 2019 is an ongoing record-breaking tornado outbreak in the United States and Canada, which has so far produced at least 237 tornadoes, including 47 significant events. 18 of these were EF3 tornadoes over multiple state ...

                                               

Tropical cyclogenesis

Tropical cyclogenesis is a meteorological word used to describe tropical cyclone formation, and its strengthening over the atmosphere. Tropical cyclogenesis happens when the development of a warm-core cyclone, is associated with a lot of convecti ...

                                               

Tropical cyclone scales

Tropical cyclones are ranked according to their maximum winds using several scales. These scales are provided by several bodies, including the World Meteorological Organization, the National Hurricane Center, and the Bureau of Meteorology. The Na ...

                                               

Tropical cyclone warnings and watches

Warnings and watches are two levels of alert issued by national weather forecasting bodies to coastal areas threatened by the imminent approach of a tropical cyclone of tropical storm or hurricane strength. They are notices to the local populatio ...