Climate

Graphic of Texas shows the updated rainfall values in inches that define certain extreme events, such as the 100-year storm. Courtesy of NOAA

CLICK HERE - ENLARGED TEXAS MAP (1 page .PDF file)

New topographic and predictive rainfall data means more people in Harris County will be mapped in floodplains.

houstonpublicmedia.org - by Davis Land - November 26, 2018

When Hurricane Harvey left so much of Houston underwater, it highlighted a problem that’s been getting worse for years: Harris County’s existing floodplain maps just don’t work.

In the year since the historic storm, flood control officials have promised to change that, and they already had plans to redo the maps, but new data on the geography of the area and the amount of rainfall forecasters expect in the future means the new maps could look drastically different.

It’s crucial the maps are done right, as people are using the maps, meant to set flood insurance premiums, for more than they are intended . . . 

Houston residents Larry Koser Jr. and his son Matthew salvage possessions from their home after Hurricane Harvey. Photo by Erich Schlegel/Getty Images

CLICK HERE - STUDY - Anthropogenic influences on major tropical cyclone events

pbs.org - by Julia Griffin - November 14, 2018

Hurricane Harvey swamped Houston with seven days of pounding rain last August. When scientists went back to look at historical weather patterns, they reported Harvey dumped 20 percent more rain than it typically would have. The culprit: climate change.

(CLICK HERE - READ COMPLETE ARTICLE)

CLICK HERE - REPORT - Global Warming of 1.5°C, an IPCC special report on the impacts of global warming of 1.5°C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty

Urgent changes needed to cut risk of extreme heat, drought, floods and poverty, says IPCC

the guardian.com - by Jonathan Watts - October 8, 2018

The world’s leading climate scientists have warned there is only a dozen years for global warming to be kept to a maximum of 1.5C, beyond which even half a degree will significantly worsen the risks of drought, floods, extreme heat and poverty for hundreds of millions of people.

The authors of the landmark report by the UN Intergovernmental Panel on Climate Change (IPCC) released on Monday say urgent and unprecedented changes are needed to reach the target, which they say is affordable and feasible although it lies at the most ambitious end of the Paris agreement pledge to keep temperatures between 1.5C and 2C.

washingtonpost.com - by Brian McNoldy and Jason Samenow - September 9, 2018

 . . . “There is an increasing risk of two life-threatening impacts from Florence: Storm surge at the coast and freshwater flooding from a prolonged heavy rainfall event inland,” the National Hurricane Center wrote Sunday . . . We are particularly concerned about the rainfall potential in the Mid-Atlantic. Models have come into agreement that a northward turn before reaching the United States is unlikely and that a building high-pressure zone north of the storm will cause it to slow or stall once it reaches the coast or shortly thereafter.

Florence could sit over some part of the Mid-Atlantic for several days, similar to what Harvey did last year over eastern Texas. It has the potential to dump unthinkable amounts of rain over a large area in the Mid-Atlantic and perhaps into the Northeast. Rainfall could begin Friday or Saturday and continue into the following week. Where exactly the zone of heaviest rain sets up is a big uncertainty. It could reasonably occur anywhere between the mountains and the coast . . .