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Extreme Weather Increasing, Tropical Cyclones are Stalling More

Extreme Weather Increasing, Tropical Cyclones are Stalling More


Alex Wierbinski's picture

By Alex Wierbinski - Posted on 14 June 2019

 

ECO-CRASHING WATER NEWS

West Houston, Texas
West Houston Texas, After Hurricane Harvey, NOAA Image.
After Hurricane Harvey, NOAA Image, more.

 

Extreme Weather Increasing

Tropical Cyclones are Stalling More,
NASA Earth Observatory, June 7, 2019.

MAIN POINTS

Extreme Rainfall Hurricanes
Recently Stalled/Parked Hurricanes
'18, Hurricane Florence, "...lingered in a confined region near the North Carolina coast for 53 hours, becoming the wettest tropical cyclone on record for the Carolinas."

'17, "Hurricane Harvey stalled for more than 100 hours in the northern Gulf of Mexico, pumping disastrous amounts of moisture into Texas."

'08, "Tropical Storm Fay hovered near Florida for at least 66 hours and became one of the most prolific rain-producing storms in the area."

Trending
Longer is Stronger...
"...those stalls were not freak occurrences, but instead fit with a growing trend of slower, longer-lasting hurricanes in the North Atlantic."

"...storms that stall more frequently and linger for longer periods of time near the coast, leading to more rainfall over confined locations."

Observations Say
"...that North Atlantic hurricanes have been moving slower and meandering more from their average trajectory over the past seven decades."

Massive Flooding
“Rain-driven flooding is especially exacerbated by these stalling events.”

This Research Examines
"...analyzed all of the tropical cyclones from 1944-2017 in the National Hurricane Center’s HURDAT2 database, which provided the position of each storm center in six-hour increments."

This Research Shows
More Stalling
"...66 North Atlantic storms lingered in a coastal region for more than two days. Of these 66 stalls, nearly half occurred in the last third of the 74 years they analyzed; only 17 occurred in the first third."

Why
We Screwed the Atmosphere
“There is some evidence that those large-scale wind patterns are slowing down in the tropics..."

“The storms are not being pushed as hard by the current that moves them along. That’s a climate change signal."

Arctic Amplification
"As global temperatures rise, the Arctic is warming faster than the tropics—a phenomenon called Arctic amplification. As temperature differences between the tropics and high latitudes decrease over time, so will the difference in air pressure, leading to a reduction in winds."

 

Storm Track and Rainfall
Video
Meandering Harvey Leaves Texas Soaked

 

More
NOAA Research Announcement

NASA VIEW HARVEY FROM SPACE

 

Bottom Line

The growing warmth has weakened the Polar Vortex in the Arctic, slowing down and weakening North Hemisphere atmospheric flows potentially serving to disrupt concentrated tropical storms. At the same time, the growing tropical and subtropical air and water temperatures are serving up more, and more powerful storms.

 

Causes & Effects

Sept 2017
Extreme Weather Increasing

Backpacker-Eye View
December 2015 Backpacker Alert: Central-West Pacific Conditions Change

Science Says…
The Relationship between Jet Stream Breakdown, Polar Vortex Instability, & Loss of Sea Ice

 

Results
Building Extreme Weather

WARNING: Torrential Downpour Activity has been Building for Fifty Years, and is Continuing

 

Articles

Extreme Weather

 

Heatwaves
April 2019
Grim News about The Future of the Great Northern Hemisphere Heat Wave of 2018

 

Nov 2018
More Coordinated Global-Scale Heatwaves in Our Future

 

 

More of All to Come

ECO-CRASHING NEWS: Comprehensive Arctic Warming Underway

 

 

Eco Crashing News

June 2019 News of Man & Nature

 

 

 

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climate change, hurricane, hurricanes, tropical storm, research, effects, increased, stalling, meandering, flooding

 

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