NOAA weather update 6:40 a.m. Thursday

Published 8:23 am Thursday, April 11, 2013

We still have the risk of severe weather across the entire area, but the timing has slowed considerably and the risk for severe weather appears to be greatest now east of I-55. This includes both the North and South shore along with all of coastal Mississippi. 

The cold front as of 6 a.m. was still west of Baton Rouge and should approach the Baton Rouge Metro around 8 a.m. to 9 a.m. As it pushes further east we are expecting more development along the cold front – especially east of I-55, as instability will increase in that region. The now slower system will allow the eastern half of the outlook area to become a little more unstable than previously expected. The Storm Prediction Center has increased the severe wind risk for areas east of a line from Houma to Mandeville to Bogalusa. 

After the cold front and squall line move through, we are still expecting quite a bit of shower and embedded thunderstorm activity behind the front with two to three inches of rain possible over the entire event. Overall, the severe weather impacts have not changed much but the timing has slowed down significantly. 

Here is a quick summary:

What: Severe weather possible with damaging winds the greatest risk. Heavy rain and frequent cloud to ground lightning are also considerable risks. Large hail along with a few tornadoes cannot be ruled out, but these are the secondary risks. 

Where: The entire outlook area will have the potential for severe weather with the greatest risk for severe weather likely along and east of I-55.

When/Timing: Line of storms should be approaching the Baton Rouge area between 8 a.m. and 9 a.m. and then reaching the I-55 corridor between 9 a.m. and 11 a.m. The Northshore and Southshore will likely see impacts occur after 11am.