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Why Tornadoes Are Still Hard to Forecast – Even Though Storm Predictions Are Improving
Meteorologists have gotten a lot better at forecasting the conditions that make tornadoes more likely. But predicting exactly which thunderstorms will produce a tornado and when is harder, and that’s where a lot of severe weather research is focused today.
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AI Could Set a New Bar for Designing Hurricane-Resistant Buildings
Being able to withstand hurricane-force winds is the key to a long life for many buildings on the Eastern Seaboard and Gulf Coast of the U.S. Determining the right level of winds to design for is tricky business, but support from artificial intelligence may offer a simple solution.
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Channeling NEXTGEN TV to Help Responders Answer the Call
A natural disaster strikes, vehicles collide on a snowy highway, a 5-alarm fire blazes through the night. For first responders, every second counts. DHS S&T is collaborating on a new effort to arm agencies with a digital alerting system that taps into NEXTGEN public TV broadcasting technologies to deliver emergency dispatches faster.
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Predicting Threats to Food Security
Pests and diseases remain one of the biggest threats to food production, increasingly destabilizing food security and livelihoods across climate-vulnerable regions around the world,” says one expert. Mathematical modelling can prevent crop devastation and preserve livelihoods.
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One Hurricane Is Bad Enough, but Climate Change-Driven Multiple Hurricanes Are Coming
Getting hit with one hurricane is bad enough, but new research shows that back-to-back versions may become common for many areas in coming decades. Driven by a combination of rising sea levels and climate change, destructive hurricanes and tropical storms could become far more likely to hit coastal areas in quick succession.
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Why Rain on Snow in the California Mountains Worries Scientists
For much of the United States, storms with heavy rainfall can coincide with seasonal snow cover. When that happens, the resulting runoff of water can be much greater than what is produced from rain or snowmelt alone. The combination has resulted in some of the nation’s most destructive and costly floods.
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High-Fidelity Simulation Offers Insight into 2013 Chelyabinsk Meteor
On the morning of Feb. 15, 2013, a small asteroid exploded over Chelyabinsk, Russia, sending a loud shockwave and sonic boom across the region, damaging buildings and leaving around 1,200 people injured. Meteoric events are natural disasters and, just like any other natural disaster, we can do more to be prepared. “They are not high-probability events, but we shouldn’t dismiss them as science fiction either,” says one scientist.
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How to Deal with Winter Droughts and Water Shortages
Warmer winters and sparse rainfall have dried up southern Europe. Water scarcity in Italy, France and other countries is threatening this year’s harvests. What to do?
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Building a Database on Public Response to Severe Weather Hazards
The public is being surveyed on perceptions and response to flash floods, tornados, severe thunderstorms and winter weather under a grant from the National Oceanic and Atmospheric Administration.
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Crowdsourced Reports Can Quickly Identify an Earthquake’s Impact
Within minutes, a statistical model based on a global database of public reports of ground shaking can be used to identify an earthquake as a high- or low-impact event, according to a new study.
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The Most Advanced Bay Area Earthquake Simulations to Be Publicly Available
Accurately modeling the effects of an earthquake is possible, but it requires intricate physics-based models that can only be run on advanced supercomputers. The data from such models are invaluable for the earthquake research community and engineers seeking to build and retrofit earthquake-resilient homes, businesses, and infrastructure. Supercomputer-generated simulations will soon be accessible on an open-access website.
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Next-Generation Storm Forecasting Project Aims to Save Lives
Severe storms have greatly impacted the Southeastern United States over the years. A key to dealing with storms and minimizing their severity is early forecasting and detection.
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Can Space Dust Slow Global Warming?
Scientists believe dust launched from the moon could reduce solar radiation enough to lessen the impact of climate change.
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Breakthrough Alert Messaging for a Mobile Public
It is in the Wildland Urban Interface (WUI) that the danger and damage from the growing risk of wildfires is most prevalent. Of paramount importance is alerting people in the path of fires and enabling their safe evacuation from the area.
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Homes in Flood Zones Are Overvalued by Billions: Study
Flooding is a costly and deadly natural hazard across the United States, and climate change will only make floods more frequent and more destructive. Failure to account for climate change means low-income homeowners could see their home values plunge.
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The long view
The Surprising Reasons Floods and Other Disasters Are Deadlier at Night
It’s not just that it’s dark and people are asleep. Urban sprawl, confirmation bias, and other factors can play a role.
Why Flash Flood Warnings Will Continue to Go Unheeded
Experts say local education and community support are key to conveying risk.