Taxonomy term

storm

Benchmarks: January 12, 1888: "Schoolchildren's Blizzard" Strikes the Great Plains

By mid-January 1888, the Great Plains had seen ice storms, frigid temperatures and above-average snowfall. On the morning of Jan. 12, however, the weather was unseasonably warm and sunny, with temperatures reaching well above freezing in places. Many people, including children on their way to school, left home without winter coats, hats or mittens. In a matter of hours, everything changed.

12 Jan 2019

Saharan dust a storm killer

Each year between 900 million and 4 billion metric tons of dust from the Sahara Desert in Africa is swept into the atmosphere and blown around the world. In places like Texas, the dust often leads to poor air quality. A new study suggests that desert dust may also suppress the formation of severe storms and hurricanes in the southern United States.

06 Nov 2018

Monsoon strength affects global ice volumes, not vice versa?

In the 1920s, Serbian scientist Milutin Milankovitch proposed that cyclical changes in Earth’s orbital eccentricity, as well as its axial tilt and orientation, shape global climate. Part of his theory — widely accepted since — is that the amount of solar radiation, or insolation, reaching high northern latitudes is a major factor in regulating global ice volume and albedo, which in turn control the strength of tropical monsoons. But in a new study, researchers suggest that instead of global ice volume regulating monsoon strength, it’s mostly the other way around.

22 Oct 2018

Bolts of insight on earthly gamma ray showers

A handful of times between 2014 and 2016, an array of ground detectors placed in Utah’s western desert sensed something in thunderstorms that occasionally raged overhead: showers of gamma rays — the highest energy waves in the electromagnetic spectrum — occurring alongside lightning bolts.

15 Aug 2018

Arizona road hazard has surprising source

Blowing dust is one of Arizona’s deadliest weather-related hazards. Between 1955 and 2011, brownout conditions created by dust storms caused more than 1,500 motor vehicle accidents across the state, resulting in 157 fatalities and more than 1,300 injuries, according to a 2016 NOAA Technical Memorandum.

25 Jan 2018

Mediterranean tsunami record may be overreported

Tsunamis are one of the most destructive natural hazards on Earth, sometimes even upstaging the major earthquakes that send the waves surging across entire ocean basins. Knowing when, where and how severely tsunamis have struck coastlines in the past is valuable for countries trying to prepare for the impacts of future tsunamis. But distinguishing tsunami deposits in geologic paleorecords from deposits left by more common storm waves is notoriously difficult. Researchers recently highlighted this challenge by taking a hard look at tsunami- and storm-wave records around the Mediterranean Sea over the last 4,500 years. The findings may serve as a cautionary tale for scientists interpreting tsunami records elsewhere in the world.

18 Jan 2018

Are North Atlantic storm tracks shifting south?

As the Arctic warms, decreasing temperature differences between the Arctic and the lower latitudes may push North Atlantic storm systems south. The factors that influence storm tracks are complicated, however, and the accuracy of models predicting future storm tracks is uncertain. The results of a new study, in which researchers looked at changes in Atlantic storm tracks over the past 4,000 years, could improve the accuracy of predictive models and help Europe prepare for shifting storm patterns.

19 May 2017

Massive dust storm caused by climate, not conflict

In August and September 2015, a massive dust storm swept across the Middle East, engulfing seven nations in sand thick enough to ground flights, trigger respiratory distress for many, and obscure the region from satellites. At the time, the unprecedented size of the storm was blamed on the ongoing conflict in Syria, with unusual amounts of dust being raised from abandoned agricultural lands and increased military traffic. But a new study cites a combination of climatic factors and weather as the more likely culprits.

20 Apr 2017

Tornadic storms fed by perfect spirals

Sometimes, large thunderstorms called supercells spawn tornadoes; sometimes they don’t. Predicting whether supercell drafts will spiral into a tornado is tricky, with false-alarm rates running as high as 75 percent. In a new study using helium balloons to study tornadogenesis in supercells, researchers have shown that wind patterns in the lowest 1 kilometer of a storm may play a major role in forming twisters.

17 Jan 2017

Red Planet Roundup: September 2016

With two rovers patrolling the surface of Mars, five spacecraft orbiting above it, and scientists here on Earth studying the Red Planet from afar, new findings are announced often. Here are a few of the latest updates.

13 Sep 2016

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