Here is an update concerning the heavy rain and strong to severe thunderstorm potential on Thursday:
Changes since previous update:
- No major changes other than a slight increase in confidence with both the potential for strong to severe storms and excessive rainfall.
Overview:
WHAT: MARGINAL RISK of Severe Weather
SLIGHT RISKof Excessive Rainfall
WHEN: Primarily mid-morning Thursday through Thursday night.
WHERE: All of SE LA and southern MS for the Marginal Risk of Severe Weather and Excessive Rainfall. Along and east of I-55 including the South shore for the Slight Risk of Excessive Rainfall.
CONFIDENCE: Moderate confidence on the potential for severe weather, moderate confidence on the potential for training showers & storms leading to localized flash flooding.
Impacts:
The main threats associated with heavy rain and strong to severe storms Thursday:
Damaging Winds:
- Locally strong, possibly damaging winds up to 60 mph which could lead to tree and powerline damage.
Hail:
- Large hail up to 1″ in diameter will be possible in any severe storm.
Tornadoes:
- A few isolated tornadoes will be possible.
Rainfall:
- Showers and storms with intense rainfall rates may train over the same areas which may lead to localized flash flooding.
- The main concern is within the Slight Risk area, with forecast rainfall totals of 2 to 3 inches and locally higher amounts possible.
The graphics HERE, HERE, and HERE highlights the area with a marginal to slight risk of excessive rainfall.
