Here is an update concerning the heavy rain and strong to severe thunderstorm potential on Thursday:
Overview:
WHAT: MARGINAL RISK of Severe Weather
SLIGHT RISKof Excessive Rainfall
WHEN: Primarily late morning Thursday through the overnight hours.
WHERE: All of SE LA and southern MS for the Marginal Risk of Severe Weather, along and east of I-55 for the Slight Risk of Excessive Rainfall.
CONFIDENCE: Low confidence in the potential for severe weather at this time, moderate confidence in 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 of 40 to 60 mph which could lead to tree and powerline damage.
Hail:
- Small hail is possible, with the potential for large hail up to 1″ in diameter in any severe storm.
Tornadoes:
- A few isolated tornadoes will be possible.
Rainfall:
- Showers and storms may train over the same areas which would 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.
Click HERE, HERE, and HERE to view the graphic highlights in the area with a marginal to a slight risk of excessive rainfall Thursday.
Additional Information and Resources:
NWS New Orleans Website: www.weather.gov/neworleans
NWS New Orleans DSS Website: http://www.weather.gov/lix/emb
River Gauges and Forecasts: http://water.weather.gov/ahps2
NWS New Orleans Facebook: www.facebook.com/NWSNewOrleans
NWS New Orleans Twitter: https://twitter.com/NWSNewOrle
Online Severe Weather Reporting: https://www.weather.gov/lix/su
Storm Prediction Center: www.spc.noaa.gov
