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Hurricane Zeta Update - October 28, 2020 4AM

Click HERE for an update concerning Hurricane Zeta. 

Changes from previous update: 

  • The forecast strength of the system has increased. The forecast now calls for a category 2 strength storm at landfall.

  • Wind impacts have increased across coastal LA, metro New Orleans, and coastal MS.

  • Storm surge values have increased.

Overview:

  • The current forecast calls for Zeta to make landfall as a Category 2 hurricane in Southeast Louisiana by late this afternoon.
  • This system will bring a multi-hazard threat to the area.

Confidence:

  • If the current forecast holds, significant impacts are expected across portions of SE LA and S MS.
  • High confidence exists in the magnitude of the impacts.

Impacts:

Storm Surge:

  • 6 to 9 feet of inundation is possible from the Mouth of the Pearl River to the MS/AL line. 5 to 7 ft of inundation will be possible along immediate coastal areas from Port Fourchon to the mouth of the Pearl River. 3 to 5 feet of inundation for the immediate coastal areas west of Port Fourchon and along the shores of Lake Pontchartrain. 1 to 3 feet of inundation for the shores of Lake Maurepas.

  • Storm surge impacts will be greatest this afternoon into this evening.

  • Expect several low-lying, coastal roads to become impassable due to flooding.

  • Some areas may become cut off or inaccessible.

Rainfall/Flooding:

  • Rainfall of 2 to 4 inches is currently forecast. Locally higher amounts will be possible. The highest rain totals will be along and east of the center.

  • Expect ponding of water in low lying areas and some potential for localized flash flooding.

  • Rainfall impacts are expected today through tonight.

Wind and tornado:

  • Sustained hurricane force winds are expected across a large swath of SE LA and coastal MS.

  • These winds could result in downed and uprooted trees, power outages, and damage to weaker and poorly constructed structures. 

  • A few tornadoes will be possible in the storm’s rain bands mainly to the east of the center. Tornadoes in these situations are typically short-lived, but they move very quickly. The highest tornado threat will generally be across areas southeast of a line from Houma to Covington to Poplarville.

The attached briefing highlights the threats associated with this system.

Additional Information and Resources:

NWS New Orleans Website: www.weather.gov/neworleans

NWS New Orleans DSS Website: http://www.weather.gov/lix/embrief

NWS New Orleans Tropical Page: https://www.weather.gov/srh/tropical?office=lix

River Gauges and Forecasts: http://water.weather.gov/ahps2/index.php?wfo=lix

NWS New Orleans Facebook: www.facebook.com/NWSNewOrleans

NWS New Orleans Twitter: https://twitter.com/NWSNewOrleans

Online Severe Weather Reporting: https://www.weather.gov/lix/submit_storm_report

National Hurricane Center Website: https:///www.nhc.noaa.gov

Next Update and Contact Information:

The next update will be sent by 11 AM CDT. 

Vicki Travis LEM
Deputy Director
Homeland Security & Emergency Management
Phone: 985-748-2271
Mobile: 985-634-0234
Email: vtravis@tangipahoa.org
Website: www.tangipahoa.org
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