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The El Nino-Southern Oscillation (ENSO), or the cyclical movement of heat in the tropical Pacific Ocean, affects atmospheric phenomena throughout the world. Its effects are the most pronounced during the winter, when the temperature difference between the atmosphere and the oceans is the greatest. The cycle affects the strength and position of the Pacific Jet [...]

The El Ni?o-Southern Oscillation (ENSO), or the cyclical movement of heat in the tropical Pacific Ocean, affects atmospheric phenomena throughout the world. Its effects are the most pronounced during the winter, when the temperature difference between the atmosphere and the oceans is the greatest. The cycle affects the strength and position of the Pacific Jet [...]

The El Nino-Southern Oscillation (ENSO), or the cyclical movement of heat in the tropical Pacific Ocean, affects atmospheric phenomena throughout the world. Its effects are the most pronounced during the winter, when the temperature difference between the atmosphere and the oceans is the greatest. The cycle affects the strength and position of the Pacific Jet [...]

The El Nino-Southern Oscillation (ENSO), or the cyclical movement of heat in the tropical Pacific Ocean, affects atmospheric phenomena throughout the world. Its effects are the most pronounced during the winter, when the temperature difference between the atmosphere and the oceans is the greatest. The cycle affects the strength and position of the Pacific Jet [...]

The El Nino-Southern Oscillation (ENSO), or the cyclical movement of heat in the tropical Pacific Ocean, affects atmospheric phenomena throughout the world. Its effects are the most pronounced during the winter, when the temperature difference between the atmosphere and the oceans is the greatest. The cycle affects the strength and position of the Pacific Jet [...]

More than half of hurricanes that make landfall produce at least one tornado. Tornadoes associated with hurricanes most often occur in the right-front quadrant of the hurricane, but can occur in rainbands and away from the hurricane?s center. As Hurricane Ivan (2004) moved inland, it produced heavy rains and more than 100 tornadoes. Hurricane Katrina [...]

A tornado watch indicates tornadoes or severe weather are possible within a certain area, but may not be looming. A tornado warning means that a tornado has been spotted or that Doppler radar indicates a pattern in a thunderstorm that can spawn a tornado. Viewer Tip: Listen to your local TV or radio weather forecast [...]

Hurricanes can produce tornadoes along the Atlantic and Gulf of Mexico coastlines. Although tornadoes are often accompanied with hail and lightning in other parts of the country, they may lack these important “clues” when they are associated with hurricanes. This means that is is important not to base judgment of tornado risk solely on the [...]

In addition to the powerful winds that accompany hurricanes, they can also produce tornadoes. Over half of the hurricanes that reach land generate at least one tornado. These often occur in the right front quadrant of the hurricane but can also occur in other places, such as embedded in rainbands far away from the center [...]