Anonymous ID: 69605a Aug. 26, 2020, 12:56 p.m. No.10428738   🗄️.is đź”—kun   >>8773 >>8860

000

WTNT33 KNHC 261742

TCPAT3

 

BULLETIN

Hurricane Laura Intermediate Advisory Number 27A

NWS National Hurricane Center Miami FL AL132020

100 PM CDT Wed Aug 26 2020

 

…AIR FORCE HURRICANE HUNTER AIRCRAFT REPORTS LAURA HAS BECOME AN

EXTREMELY DANGEROUS CATEGORY 4 HURRICANE…

…CATASTROPHIC STORM SURGE, EXTREME WINDS, AND FLASH FLOODING

EXPECTED ALONG THE NORTHWEST GULF COAST TONIGHT…

…LITTLE TIME REMAINS TO PROTECT LIFE AND PROPERTY…

 

SUMMARY OF 100 PM CDT…1800 UTC…INFORMATION

----------

LOCATION…27.3N 92.5W

ABOUT 200 MI…320 KM SSE OF LAKE CHARLES LOUISIANA

ABOUT 200 MI…320 KM SSE OF PORT ARTHUR TEXAS

MAXIMUM SUSTAINED WINDS…140 MPH…220 KM/H

PRESENT MOVEMENT…NW OR 315 DEGREES AT 16 MPH…26 KM/H

MINIMUM CENTRAL PRESSURE…952 MB…28.11 INCHES

 

28.11 INCHES of mercury! Ho Lee Fook!

 

HAZARDS AFFECTING LAND

----–

Key messages for Laura can be found in the Tropical Cyclone

Discussion under AWIPS header MIATCDAT3 and WMO header WTNT43 KNHC.

 

Storm surge and tropical-storm-force winds will arrive within the

warning areas well in advance of Laura's center. All preparations

to protect life and property should be rushed to completion in the

next few hours.

 

STORM SURGE: The combination of a dangerous storm surge and the

tide will cause normally dry areas near the coast to be flooded by

rising waters moving inland from the shoreline. The water could

reach the following heights above ground somewhere in the indicated

areas if the peak surge occurs at the time of high tide…

 

Johnson Bayou LA to Rockefeller Wildlife Refuge including Calcasieu

Lake…15-20 ft

Sea Rim State Park TX to Johnson Bayou LA including Sabine

Lake…10-15 ft

Rockefeller Wildlife Refuge to Intracoastal City LA…10-15 ft

Intracoastal City LA to Morgan City including Vermilion Bay…8-12

ft

Port Bolivar TX to Sea Rim State Park…6-9 ft

Morgan City LA to Mouth of the Mississippi River…4-7 ft

Freeport TX to Port Bolivar including Galveston Bay…2-4 ft

Mouth of the Mississippi River to Ocean Springs MS including Lake

Borgne…2-4 ft

Lake Pontchartrain and Lake Maurepas…2-4 ft

 

The deepest water will occur along the immediate coast near and to

the right of the landfall location, where the surge will be

accompanied by large and destructive waves.

 

Unsurvivable storm surge with large and destructive waves will cause

catastrophic damage from Sea Rim State Park, Texas, to Intracoastal

City, Louisiana, including Calcasieu and Sabine Lakes. This storm

surge could penetrate up to 30 miles inland from the immediate

coastline in southwestern Louisiana and far southeastern Texas.

 

Surge-related flooding depends on the relative timing of the surge

and the tidal cycle, and can vary greatly over short distances. For

information specific to your area, please see products issued by

your local National Weather Service forecast office.

 

WIND: Hurricane conditions are expected in the hurricane warning

area tonight and Thursday, with catastrophic wind damage expected

where Laura's eyewall makes landfall tonight. Tropical storm

conditions are moving onshore of the coast of Louisiana within the

tropical storm warning area and are expected to reach the coast in

the hurricane warning area later this afternoon or evening.

 

Hurricane-force winds and damaging wind gusts are also expected to

spread well inland into portions of eastern Texas and western

Louisiana early Thursday.

 

RAINFALL: From this afternoon through Friday, Laura is expected to

produce rainfall totals of 5 to 10 inches, with isolated maximum

amounts of 15 inches across portions of the northwestern Gulf Coast

from western Louisiana to far eastern Texas, and northward into much

of Arkansas. This rainfall will cause widespread flash and urban

flooding, small streams and creeks to overflow their banks, and

minor to isolated moderate freshwater river flooding.

 

By Friday into Saturday, Laura will produce rainfall totals of 2 to

4 inches, with isolated maximum amounts of 6 inches across the

mid-Mississippi and portions of the Lower Ohio and Lower Tennessee

Valleys. This rainfall may lead to localized flash and urban

flooding and rapid rises on small streams.

 

NEXT ADVISORY

--—

Next complete advisory at 400 PM CDT.

 

Hourly Tropical Cyclone Updates will begin at 200 PM CDT. These

can be found under WMO header WTNT63 KNHC and under AWIPS header

MIATCUAT3.

 

https://www.nhc.noaa.gov/text/refresh/MIATCUAT3+shtml/261857.shtml

 

$$

Forecaster Brown

 

https://www.nhc.noaa.gov/text/refresh/MIATCPAT3+shtml/261742.shtml

Anonymous ID: 69605a Aug. 26, 2020, 1 p.m. No.10428773   🗄️.is đź”—kun   >>8860 >>8970

>>10428738

>Water levels are beginning to rise along the coast of Louisiana. A

National Ocean Service water level station at Eugene Island,

Louisiana, recently reported about 3.2 feet of inundation above

ground level.

 

3.2 feet of water and Laura is still a long way off!

Anonymous ID: 69605a Aug. 26, 2020, 1:10 p.m. No.10428860   🗄️.is đź”—kun

>>10428773

>>10428738

 

From the top of the hour. Now they've changed it from 3.2 feet of water to 2.3.

 

000

WTNT63 KNHC 261954

TCUAT3

 

Hurricane Laura Tropical Cyclone Update

NWS National Hurricane Center Miami FL AL132020

300 PM CDT Wed Aug 26 2020

 

…300 PM CDT POSITION UPDATE…

…CATASTROPHIC STORM SURGE, EXTREME WINDS, AND FLASH FLOODING

EXPECTED ALONG THE NORTHWEST GULF COAST THIS EVENING…

…WATER LEVELS RISING ALONG THE COAST OF SOUTHEAST TEXAS AND

LOUISIANA…

 

Water levels are beginning to rise along the coast of Texas. A

National Ocean Service water level station at Sabine Pass, Texas,

recently reported about 2.3 feet of inundation above ground level.

 

The Eugene Island, Louisiana, NOS station recently measured

sustained winds of 36 mph (58 km/h) and a gust to 45 mph (72 km/h).

 

SUMMARY OF 300 PM CDT…2000 UTC…INFORMATION

----------

LOCATION…27.6N 92.7W

ABOUT 175 MI…280 KM SSE OF PORT ARTHUR TEXAS

ABOUT 175 MI…280 KM S OF LAKE CHARLES LOUISIANA

MAXIMUM SUSTAINED WINDS…140 MPH…220 KM/H

PRESENT MOVEMENT…NW OR 315 DEGREES AT 16 MPH…26 KM/H

MINIMUM CENTRAL PRESSURE…948 MB…27.99 INCHES

 

$$

Forecaster Roberts/Brennan

 

https://www.nhc.noaa.gov/text/refresh/MIATCUAT3+shtml/261954.shtml