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Author Topic: Hurricane Laura: Cat 4 "Unsurvivable" Storm Surge to Gulf Coast  (Read 3079 times)

Offline thorfourwinds

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Laura has rapidly intensified into a Category 4 as it approaches landfall.

Laura will make landfall Wednesday night into early Thursday near the border between Louisiana and Texas.

Catastrophic storm surge and damaging winds will affect areas near where Laura makes landfall.

Storm surge could penetrate as much as 30 miles inland in southwest Louisiana.

Laura is also an inland flood risk as far north and east as Arkansas and the Ohio and Tennessee valleys.

Isolated tornadoes are also expected from Laura.



Hurricane Laura is a Category 4 and continues to strengthen as it heads for a destructive landfall near the Texas and Louisiana border Wednesday night into early Thursday morning. A catastrophic storm surge and damaging winds will batter the region and a threat of flooding rain and strong winds will extend well inland.

Residents along the upper Texas and southwest Louisiana coasts should finish preparations now for a major hurricane strike. Follow any evacuation orders issued by local or state officials.



Laura is centered about 155 miles south of Lake Charles, Louisiana. It's tracking to the northwest at 15 mph.

The hurricane is now a Category 4 with 145 mph winds. Some slight additional strengthening is possible this evening.

Laura's maximum sustained winds jumped from 75 mph to 140 mph in the 24 hours ending 1 p.m. CDT Wednesday. That increase in maximum sustained winds easily meets the definition of rapid intensification in a hurricane.



Doppler radar shows that bands of rain and gusty winds are now pivoting into the northwest Gulf Coast.

Catastrophic wind damage is possible on the upper Texas and southwest Louisiana coasts. This includes widespread power outages possibly lasting for days, if not over a week, downed trees and structural damage. Wind gusts are likely to top 100 mph in these areas.

The potential for tree damage and power outages will affect areas farther inland along the path of Laura across eastern Texas, Louisiana, Arkansas and western Tennessee.



Laura will also spread rain and wind impacts far inland through parts of the lower Mississippi Valley and Ohio Valley into Saturday.

According to NOAA's Weather Prediction Center and the National Hurricane Center, parts of southwestern Louisiana and the Golden Triangle of southeastern Texas could pick up 8 to 12 inches, with isolated amounts up to 18 inches.

A high risk of excessive rainfall has been issued by NOAA into early Thursday for parts of southeastern Texas and southwestern Louisiana, including Beaumont, Port Arthur and Lake Charles. Rainfall rates of 5 to 7 inches per hour are possible, meaning dangerous flash flooding is expected. However, storm surge flooding will occur in this same area.



Rainfall totals of 5 to 10 inches, with isolated amounts of 15 inches, are expected across central and western Louisiana into far eastern Texas. Much of Arkansas can expect 3 to 7 inches, with isolated totals of up to 10 inches.

Locally heavy rain is also possible from the mid-Mississippi valleys into the Ohio and Tennessee valleys and the central Appalachians late Friday into Saturday. These areas could receive 2 to 4 inches of rainfall, with up to 6 inches in some spots.

This could lead to widespread flash flooding, especially in urban areas, and minor to moderate river flooding that could linger for some time after Laura leaves.



Tornadoes

Landfalling hurricanes sometimes produce tornadoes to the east of where the storm's center tracks.

The area with the greatest chance of seeing a few tornadoes from Laura into early Thursday is from southeastern Texas into southwest Mississippi.

Laura's History
Tropical Depression Thirteen formed in the Atlantic last Wednesday night (Aug. 19) and strengthened into Tropical Storm Laura on Friday morning (Aug. 20.)

Laura is the earliest Atlantic 'L' named storm on record. The previous record was Luis on Aug. 29, 1995, according to Phil Klotzbach, tropical scientist at Colorado State University.

LIVE: Hurricane Laura upgraded to Category 4; LA, TX Gov call for evacuations




8-26-20 Lake Charles, LA Hurricane Laura Bands - Wind - Powerlines Down



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Offline thorfourwinds

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Re: Hurricane Laura: Cat 4 "Unsurvivable" Storm Surge to Gulf Coast
« Reply #1 on: August 26, 2020, 05:30:38 pm »


935.9 mb
Major Hurricane Laura Nearing Landfall on the Gulf Coast - Live Coverage
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Offline thorfourwinds

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Re: Hurricane Laura: Cat 4 "Unsurvivable" Storm Surge to Gulf Coast
« Reply #2 on: August 26, 2020, 06:07:27 pm »
TORNADO WARNINGS



940MB MINIMUM PRESSURE



EYEWALL TIGHTENING



"UNSURVIVABLE" STORM SURGE EXPLAINED

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