Extreme rain in urban areas can often stump weather forecasters, while higher population density puts more lives at risk, writes @maryhui https://t.co/ZaApb1uMeI ...

Well, Tom, good evening to you. The fire burning in this forest right now is the largest in California. Firefighters tell us that the increasingly hot and dry conditions this week are making it even harder to fight.This fire just one of hundreds burning across North America right now. Tonight, multiple wildfires impacting cities coast to coast. In central California, the Gford fire exploding to more than 82,000 acres, forcing hundreds to evacuate with flames threatening nearly 900 structures.All the fences ...

Service Disruptions - Extreme weather conditions, including torrential rain and sweltering heat, are causing significant service disruptions for New York City's Metropolitan Transportation Authority [1] - Riders are scrambling for alternatives due to these disruptions [1] Infrastructure Strain - The Metropolitan Transportation Authority's infrastructure is buckling under the strain of extreme weather [1]

Weather Event and Impact - Flash floods are the second most deadly extreme weather event, only surpassed by extreme heat [4] - From 2015 to 2024, floods have caused more deaths than hurricanes and tornadoes [4][5] - At least 129 people are confirmed dead from the floods along the Guadalupe River, and 166 people are still missing [2] Flash Flood Characteristics - Flash floods typically form in about 6 hours or less, often within 3 hours [5] - The Guadalupe River rose 26 feet (approximately 7.9 meters) in just 45 minutes on July 4th [6] - Deaths associated with floods often occur at night or when people are trapped in their cars [7] Factors Contributing to Flash Flooding - Rainfall intensity, location and distribution of rainfall, land topography, vegetation, and soil type all influence flash flood occurrence [7] - Mountainous streams and rivers can quickly become raging torrents [8] - Urban areas with concrete and hardened surfaces have limited water absorption [8] - Areas recently burned by wildfire are at greater risk due to a soil layer that repels water [8][9] Texas Hill Country Specifics - The geography of the Texas Hill Country makes it one of the deadliest places in the United States for flash flooding [10] - Some areas experienced 10 inches (approximately 254 mm) of rain, causing water to sheet off hillsides into creeks [10] - A rainfall rate of 4 inches (approximately 101.6 mm) per hour is considered an incredible rate in the Hill Country [20] Flood Plane and Regulation - There is a general disregard for flood planes, with people living and recreating in susceptible areas [15][16] - Texas has historically shown hesitation and bitterness towards flood plane regulation [17] - Local governments may handle flood plane regulation reluctantly and inefficiently [18]

Germany will carry out emergency repairs on its autobahn this weekend after extreme heat in recent days blew up large chunks of concrete along key stretches of the highway https://t.co/8AuFidLfew ...

China is bracing for more intense rainfall, in the latest extreme weather event that has left several dead and flooded some cities in the country https://t.co/wC9DodeMFK ...