Weather - US

As hurricane activity starts to ramp up, Meteorologist Bobby Deskins is tracking a wave in the Windward Islands that's expected to bring heavy rain to the Southeast early next week. USA TODAY

usatoday.com - by Doyle Rice - August 29, 2018

The sleeping giant may be about to awaken.

Hurricane activity in the Atlantic Ocean, Caribbean Sea and Gulf of Mexico is forecast to ramp up over the next couple of weeks. "Weather models have flipped the switch on the Atlantic hurricane season and see multiple areas of development possible, starting mainly this weekend," weather.us meteorologist Ryan Maue said.

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Emergency workers among damaged vehicles in a open parking area of northern Athens after a flash flood struck the Greek capital. Photograph: Angelos Tzortzinis/AFP/Getty Images

Exclusive: Prof Michael Mann declares the impacts of global warming are now ‘playing out in real-time’

theguardian.com - by Damian Carrington - July 27, 2018

The extreme heatwaves and wildfires wreaking havoc around the globe are “the face of climate change,” one of the world’s leading climate scientists has declared, with the impacts of global warming now “playing out in real time.”

Climate change has long been predicted to increase extreme weather incidents, and scientists are now confident these predictions are coming true.  Scientists say the global warming has contributed to the scorching temperatures that have baked the UK and northern Europe for weeks.

The hot spell was made more than twice as likely by climate change, a new analysis found, demonstrating an “unambiguous” link.

Hurricane Harvey over the Gulf of Mexico in August 2017. The storm stalled over Texas and dropped nearly 50 inches of rain in some places.  Credit NOAA/NASA GOES Project

CLICK HERE - STUDY - A global slowdown of tropical-cyclone translation speed

A new study shows that storms are staying in one place longer, much like Hurricane Harvey did last year.

nytimes.com - by Kendra Pierre-Louis - June 6, 2018

 . . . A study published Wednesday in the journal Nature focuses on what is known as translation speed, which measures how quickly a storm is moving over an area, say, from Miami to the Florida Panhandle. Between 1949 and 2016, tropical cyclone translation speeds declined 10 percent worldwide, the study says. The storms, in effect, are sticking around places for a longer period of time.

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An image of Hurricane Harvey taken by the GOES-16 satellite as the storm collided with the Texas coast. (Image courtesy NASA.)

Ocean evaporation matched up with massive overland rainfall, new analysis finds

CLICK HERE - STUDY - Hurricane Harvey Links to Ocean Heat Content and Climate Change Adaptation

ucar.edu - May 10, 2018

In the weeks before Hurricane Harvey tore across the Gulf of Mexico and plowed into the Texas coast in August 2017, the Gulf's waters were warmer than any time on record, according to a new analysis led by the National Center for Atmospheric Research (NCAR).

These hotter-than-normal conditions supercharged the storm, fueling it with vast stores of moisture, the authors found. When it stalled near the Houston area, the resulting rains broke precipitation records and caused devastating flooding.

"We show, for the first time, that the volume of rain over land corresponds to the amount of water evaporated from the unusually warm ocean," said lead author Kevin Trenberth, an NCAR senior scientist. "As climate change continues to heat the oceans, we can expect more supercharged storms like Harvey."