Category Archives: Weather Dangers
The recent extremely powerful Hurricane Patricia off the west coast of Mexico, the most intense hurricane ever measured in the Western Hemisphere, was noteworthy for a number of reasons.
Perhaps primarily, it was characterized by the incredible fact that its central minimum pressure decreased by 100 millibars in 24 hours from Oct. 22-23. Since the average sea-level pressure is just over 1,000 millibars, that means that 10 percent of the atmospheric column over the center of Patricia was somehow evacuated in only one day. Continue reading
Not necessarily. Some warm Novembers had some severe extratropical cyclones, particularly around Veteran’s Day (formally known as Armistice Day).
Tuesday marks the 40th year since a winter storm blew across the Midwest, sending the freighter SS Edmund Fitzgerald to the bottom of Lake Superior with all 29 crew members. Gordon Lightfoot’s 1976 ballad “The Wreck of the Edmund Fitzgerald” helped make this incident the most famous disaster in Great Lakes shipping history. Continue reading
A tornado is a powerful, narrow column of winds that rotate around a center of low pressure. The winds inside a tornado spiral inward and upward, often exceeding speeds of 300 mph.
We cannot always tell if a developing storm will produce a tornado. Advances in radar technologies have helped to identify storms that are producing a tornadoes, or about to produce a tornado. Continue reading
Summer skies often look hazy because of the high humidity, which condenses in the sky and forms small liquid water particles that scatter light, creating that hazy effect.
But there’s a different reason our skies have not been a nice blue color when they’re cloud-free: smoke.
It’s coming from wildfires in the forests of the Northwest Territories in Canada, which were started naturally by lightning strikes. The winds have moved this smoke our way, defining which areas would be affected by the smoke. Continue reading