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Tag Archives: Severe Weather
Through the end of last week, this spring had been well behind the average in number of reported tornadoes in the United States. Though we are still running a lower than average year, the recent devastation in Moore, Okla., has brought tornadoes back into the news in a dramatic way. Continue reading
Since we live in a country with a famous Tornado Alley right in its center, it is easy to forget that severe weather can occur, though with substantially less frequency, in other parts of the world.
A recent example of this is the flooding in Venice, Italy in early November and the strong tornado that roared through Teranto, Italy on Nov. 28. Continue reading
A nor’easter is an extratropical cyclone that affects the northeastern United States and extreme eastern Canada. An extratropical cyclone is a low-pressure system that forms outside of the tropics and is usually associated with fronts, unlike a tropical cyclone. A nor’easter is named for the strong northeasterly winds that blow across this region as the path of the low pressure moves northeastward, slightly to the east of the North American coastline. Continue reading
Nearly a week after Hurricane Sandy struck the Mid-Atlantic coast of the United States, the affected region is still reeling from the shock. This really was an unprecedented storm in the truest sense of that word.
Among the amazing aspects of the event was the extraordinarily accurate and early forecasting of the storm. Numerical forecast models were latching on to the correct scenario, including the unusual and rapid leftward turn off the Mid-Atlantic coast, as early as five to seven days before the event (depending on the particular model in question). Continue reading
A derecho (pronounced deh-RAY-cho, a Spanish word meaning “straight ahead”) is an hours-long windstorm associated with a line of severe thunderstorms. It is a result of straight-line winds, not the rotary winds of a tornado — hence its name. Derechos in the United States are most common in the late spring and summer (May through August). Continue reading