Hurricane Zeta Update - October 28, 2020 4AM
Click HERE for an update concerning Hurricane Zeta.
Changes from previous update:
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The forecast strength of the system has increased. The forecast now calls for a category 2 strength storm at landfall.
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Wind impacts have increased across coastal LA, metro New Orleans, and coastal MS.
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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:
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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.
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Storm surge impacts will be greatest this afternoon into this evening.
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Expect several low-lying, coastal roads to become impassable due to flooding.
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Some areas may become cut off or inaccessible.
Rainfall/Flooding:
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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.
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Expect ponding of water in low lying areas and some potential for localized flash flooding.
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Rainfall impacts are expected today through tonight.
Wind and tornado:
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Sustained hurricane force winds are expected across a large swath of SE LA and coastal MS.
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These winds could result in downed and uprooted trees, power outages, and damage to weaker and poorly constructed structures.
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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 |
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6086
Category | Emergency Updates |