Severe Weather And Heavy Rain Forecast: Overnight Dec. 13-14, 2022

Click HERE for an update concerning the severe weather threat tonight into Wednesday night.

A couple key notes for clarification:

The line of storms is expected to move through the area overnight tonight and stall for a short time somewhere between Lafayette and I-55 (this is where we have most uncertainty in timing). Then after stalling for a short time east of I-55, the line of storms will progress eastward from I-55 through the rest of the area quickly throughout the daytime hours from 9AM through the early evening hours.
The severe threat will be highest for our areas east of I-55 still, especially as we move toward the afternoon hours
We do expect the rainfall threat to be highest for the areas west of I-55, and we are very concerned about this potential. These areas, though, are also still at risk of seeing severe weather (a few tornadoes and damaging winds 60+mph), especially from midnight to 4AM CT
We want to emphasize (especially for our NW areas, including Baton Rouge), please do not discount this rainfall threat. It will be primarily a concern during the early morning hours (4AM through 9AM) when school buses will be operating and during morning rush hour traffic when conditions will still be too dark to discern water depth easily. We are expecting widespread ponding/flash flooding and some impacts to roads with the potential for some roads to be impassable in locations that see these locally higher amounts (6″+) and where training occurs.


Changes from previous update:

Moderate Risk now for Heavy Rainfall for Wednesday


Overview:

WHAT: Enhanced Risk of Severe Weather and Moderate Risk of Heavy Rainfall.

WHEN: This evening through Wednesday evening.

WHERE: All of SE LA and southern MS.

CONFIDENCE: Timing remains a lower confidence as there is a possibility of a line of storms either slowing, or stalling early Wednesday, then re-development of more storms during the day Wednesday into Wednesday night as storms continue east.

This causes a concern for local training of thunderstorms and for now, low to moderate confidence on location of greatest flash flooding potential.