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NOAA Magazine || NOAA Home Page NATION COUNTS FEWEST TORNADOES SINCE 1988 NOAA Says Be Prepared as Storm Pattern Intensifies
"The storm pattern is starting to pick up pace with strong cold fronts coming through. I'd be surprised if the slow start continues," said Joseph Schaefer, Director of NOAA's Storm Prediction Center. "Things could easily turn around, making this an above-average year. With spring approaching, it's just too early to say that we have lucked out." The position of the jet stream and resulting storm track prohibited tornado development for much of the winter, Schaefer said. "Typically winter season tornadoes are the result of large weather systems which cross the country, bringing cold air down from Canada and drawing warm moist air up from the Gulf of Mexico. The collision of air masses helps to spawn tornadic thunderstorms. This year, however, the storm tracks either stayed to the north or went right along the gulf coast, so we didn't have the moist air and the cold air colliding in the right place at the right time for tornadoes," he said. Every year, about 70 Americans are killed by tornadoes with 1,500 injured. An average of 1,200 tornadoes cause more than $400 million in damages annually. Peak tornado activity occurs during the months of March through early July. The average number of tornadoes over the past three years from January to March 15 is 178. Only three years since 1950 have seen fewer tornadoes during the same period: four in 1969, six in 1988, and eight in 1951. Deadly March tornado outbreaks in previous years include a tornado that struck Ft. Worth, Texas, killing five people on March 28, 2000, and the tornado in Hesston, Kan., March 13, 1990, that killed two people. NOAA's National Weather Service advises to plan for tornadoes before they strike. NOAA's Storm Prediction Center issues storm outlooks daily, indicating areas at risk for severe weather. "If your area is in a moderate or high risk for severe storms, that is the time to be sure you have fresh batteries for your NOAA Weather Radio, and be sure your shelter is prepared with bottled water, blankets and pillows to protect you from flying debris," Schaefer said. "When the National Weather Service issues a tornado or severe thunderstorm watch, it means the atmosphere is ready to produce severe storms. By monitoring changing weather conditions, you will be prepared for the warning from your local forecast office." Severe Weather Safety Rules:
Tornado Safety Rules:
"Despite new technology developed by NOAA researchers that help National Weather Service forecasters provide better warnings, people still have to take action to protect themselves and their property," Schaefer said. "As we enter the height of tornado season, now is the time to develop a tornado safety plan before you need it. We also recommend being aware of the forecast before the severe weather moves into your area by monitoring NOAA Weather Radio and local weather broadcasts." More information about tornado
forecasting and research is available online at: NOAA's National Weather Service is the primary source of weather data, forecasts and warnings for the United States and its territories. NOAA's National Weather Service operates the most advanced weather and flood warning and forecast system in the world, helping to protect lives and property and enhance the national economy. Relevant Web Sites Media Contact:
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