Subscribe free to our newsletters via your
. 24/7 Space News .

Hurricane Isaac shifts Mississippi into reverse gear
by Staff Writers
Washington (AFP) Aug 30, 2012

Hurricane Kirk forms in the Atlantic
Miami (AFP) Aug 30, 2012 - Hurricane Kirk has formed in the mid Atlantic and is strengthening as it heads northwards across the ocean, becoming the fifth such storm of the season, US forecasters said Thursday.

At 1500 GMT, Kirk was about 3,000 kilometers (1,864) off the coast of Florida, half-way between North America and western Africa, the National Hurricane Center said.

With maximum sustained winds near 75 miles (120 kilometers) per hour, Kirk is a category one storm on the Saffir-Simpson scale and is expected to strengthen over the next 48 hours.

Still, no coastal watches or warnings are in effect and a graphic posted on the Miami-based center's website showed Kirk staying away from land and heading northwest over the coming days.

Kirk is the fifth hurricane of the 2012 season and forms as the US Gulf Coast bares the brunt of Tropical Storm Isaac, a former hurricane that has caused massive flooding in Louisiana.

The Mississippi flowed backwards for nearly 24 hours when Hurricane Isaac roared off the Gulf of Mexico and made landfall in Louisiana, the US Geological Survey said Thursday.

In a statement, it said the Mississippi flowed upstream at 182,000 cubic feet (5,150 cubic meters) per second on Tuesday at Belle Chasse, downriver from New Orleans, where it surged 10 feet (three meters) above its previous height.

Average flow per second at that point on the 2,320 mile (3,734 kilometer) river, the mainstay of North America's largest river system, is 125,000 cubic feet -- equal in volume to about 90 standard 20-foot shipping containers.

"Although it doesn't happen often, hurricanes can cause coastal rivers to reverse flow," said the Geological Survey, a federal agency that constantly monitors the Mississippi's flow rate through a network of stream gages.

"Between the extremely strong winds and the massive waves of water pushed by those winds, rivers at regular or low flow are forced backwards until either the normal river-flow or the elevation of the land stop the inflow."

As Isaac creeped further inland, the agency said, it triggered surges along the Mississippi as far north as Baton Rouge, Louisiana, where the river crested eight feet (nearly 2.5 meters) above its prior height.

The Mississippi similarly went into reverse gear when Hurricane Katrina struck Louisiana with ruthless force in August 2005, cresting at 13 feet (nearly four meters) about its previous level.

Forecasters expect Isaac to remain to the west of the Mississippi as it moves north, bringing late-summer relief to grain-growing states in American heartland otherwise hard-hit by drought.

Severe floods hit central portions of the Mississippi last year, but a dramatic lack of rain this year has seen the strategic river fall to levels unseen since 1988, disrupting barge traffic.


Related Links
Bringing Order To A World Of Disasters
When the Earth Quakes
A world of storm and tempest

Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks DiggDigg RedditReddit GoogleGoogle

Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News

Hurricane Isaac batters New Orleans
New Orleans (AFP) Aug 29, 2012
Hurricane Isaac pounded New Orleans with fierce winds and torrents of rain Wednesday, but the multi-billion dollar flood defenses built after Katrina swamped the city seven years ago held firm. Isaac was downgraded from a hurricane to a tropical storm, but officials warned that heavy rain would continue overnight and even into Friday, as the swirling vortex of cloud and storm-force winds was ... read more

Russia's moonshot hope 'not a dream'

A "Blue Moon" Heralds the Harvest

New research eclipses existing theories on moon formation

Apollo 11 capsule stirs Neil Armstrong memories, tributes

Mars suitable for colonization

Curiosity Rover Plays First Song Transmitted from Another Planet

NASA Curiosity Rover Begins Eastbound Trek on Martian Surface

Rover Leaves Tracks in Morse Code

Manned interplanetary missions on NASA's agenda

Space race, on a budget, was not how Armstrong saw it

Research and Technology Studies 2012

Singer Sarah Brightman could be next space tourist: report

China eyes next lunar landing as US scales back

China unveils ambitious space projects

Is China Going to Blast Past America in Space?

Hong Kong people share joy of China's manned space program

Dragon Spacecraft Set to Make Second Run for ISS

Europe's ATV-3 Space Freighter Raises ISS Orbit to 420 km

Russia's ISS Crew Members Complete Spacewalk

Sierra Nevada Supports Communications Experiment on ISS

NASA launches mission to explore radiation belts

ISRO to score 100 with a cooperative mission Sep 9

NASA Administrator Announces New Commercial Crew And Cargo Milestones

Ariane 5s are on the move for Arianespace's upcoming missions

NASA, Texas astronomers find first multi-planet system around a binary star

Planet search moves to Antarctica

Evaporating Planet Has a Comet Tail

Search for alien life gets boost at twin star

Publishers ink $69 mn deal in ebook price-fixing case

Sony tablet takes aim at Microsoft Surface

Apple, Samsung 'tablet war' overshadows Berlin tech show

Synchronized lasers measure how light changes matter

The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement