When it comes to severe weather advisories, a warning is more severe than a watch. Each is issued by a different branch of the U.S. National Oceanic and Atmospheric Administration.Know More
According to Dan Kottlowski, a senior meteorologist for AccuWeather, the Storm Predictor Center issues watches when current conditions are favorable for severe weather – often a thunderstorm or a tornado – but watches don't necessarily mean that the weather is imminent. Watches also tend to cover much broader geographical areas, often up to 25,000 square miles.
Warnings are issued by local offices of the National Weather Service and occur when severe weather is imminent. Officials issue a warning when specific criteria, such 1-inch hail and 55-mph winds, have been confirmed in an area.Learn more about Storms
Liver damage caused by alcohol abuse, cancers, and autoimmune or genetic disorders often presents symptoms of swelling in the legs, ankles and abdomen, dark urine, frequent bruising, and jaundice, the yellowing of the skin and eyes, states Mayo Clinic. Chronic fatigue, itching and changes in stool color are also common.Full Answer >
The largest concentration of tornadoes occur in Tornado Alley, which encompasses most of the Great Plains of the central United States. One quarter of the most significant tornadoes in the United States occur in Tornado Alley. Oklahoma experiences the highest number of tornadoes and the most severe tornadoes in the United States.Full Answer >
Hurricane Katrina took place in Florida, Louisiana, Mississippi, Georgia and Alabama. It initially started out as a tropical storm over the Bahamas on Aug. 23, 2005. On Aug. 25, it reached southern Florida and was classified as a Category 1 hurricane.Full Answer >
Tornadoes can last from a few seconds to over an hour, although most last less than 10 minutes. They form from mesocyclones, which are areas of organized rotation within supercell thunderstorms. Scientists still don't know why some mesocyclones become tornadoes and some do not.Full Answer >