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Severe weather threat increases for New Orleans, Baton Rouge on Wednesday: Forecast, radar – NOLA.com

The severe weather threat for Wednesday has increased for metro New Orleans and Baton Rouge, meteorologists said in their latest forecast. 

The biggest threat will be damaging winds, with gusts up to 70 mph, but tornadoes are possible, along with rain and hail.

The storms are expected to reach Baton Rouge around noon then move east, getting to New Orleans and the north shore around 4 p.m.

The storm system comes a week after two tornadoes touched down in Arabi and the north shore. The strong EF3 tornado that hit Arabi killed a man, injured about a dozen others and significantly damaged about 150 homes.

The tornado that hit Greta, Arabi and New Orleans East is the strongest tornado to hit metro New Orleans in modern times.

“We understand the anxiety lingering from last week,” the National Weather Service in Slidell tweeted Tuesday. “But all events are different!”

Here’s what to know about this week’s severe weather threat as of 10:30 a.m. Tuesday from the National Weather Service in Slidell.

Threats

The highest risk for significant severe weather is along and north of Interstate 10, including Baton Rouge, Hammond and part of the north shore.

Those areas have a moderate risk, which is a threat level of 4 out of 5. 

Slidell, New Orleans and the south shore are at risk for severe weather, but the threat level is lower – 3 out of 5, forecasters said Tuesday morning.

Severe weather threat Wednesday March 30

image via National Weather Service in Slidell

Here are the current threats for southeast Louisiana:

  • Sustained winds of 25 to 35 mph with gusts in excess of 70 mph in a severe thunderstorm 
  • Tornadoes will be possible, and a few could be strong (EF2+) and/or have a long track
  • Trees and powerlines could be damaged and lead to power outages
  • Rainfall of 1 to 1.5 inches with locally higher amounts possible.
  • Flash flooding possible in low lying areas and areas of poor drainage
  • Hail

Wind advisory in effect

A wind advisory is in effect Wednesday from 8 a.m. to 9 p.m. South winds of 25 to 35 mph are expected, with gusts up to 50 mph.

The wind advisory covers all of southeast Louisiana, including New Orleans, the north shore and Baton Rouge.

The winds have the potential to know out powerlines and damage trees before the severe storms arrive.

Use extra caution when driving, especially on bridges and elevated roads.

Timing

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The storm system will be moving east Wednesday. Here’s the current timing from the National Weather Service:

Baton Rouge: noon to 4 p.m.

New Orleans, Hammond, Covington: 4 p.m. to 8 p.m.

Slidell, Boothville: 8 p.m. to midnight

Watch versus a warning

A watch means a tornado is possible. A warning is issued when a tornado has been spotted in person or by radar.

Watches are usually issued for a large geographical area for a longer period of time, such as several hours.

Warnings are usually issued for a small geographical area for a short period of time, such as 30 minutes to an hour.

Safety tips

NO.arabi.adv.1573.JPG

The wind blows the American flag above a house slab in Arabi on Friday, March 25, 2022. A tornado touched down in the area on Tuesday killing one person, knocking out power to thousands of residents and destroying houses. (Photo by Brett Duke, NOLA.com | The Times-Picayune | The New Orleans Advocate)

There are things you can do now to prepare.

FURNITURE: Secure loose outdoor objects and bring in patio furniture.

PHONE: Charge your phone and make sure it is unmuted. Tornado warnings will be pushed to your phone when the threat is imminent. Turn on weather emergency alerts.

FLASHLIGHT: Test your flashlight and keep it in an easy accessible place. If you are sleeping as the storm moves through, put the flashlight next to your bed. Keep shoes near your bed as well.

SAFE PLACE: Prepare a safe place to go beforehand. Make sure everyone in your household knows where to go. Have a clear path to your safe place in case you are navigating in the dark.

Stay away from windows and go to an interior room on the lowest floor.

If you live in a mobile home, get to a safe place.

Live radar

Track the storms as they move through southeast Louisiana.