Severe thunderstorms capable of damaging winds and torrential downpours will ignite across the lower Mississippi Valley this afternoon and tonight.
Many of the same locations across parts of Louisiana, Mississippi and the central Gulf Coast that had powerful thunderstorms on Friday will be in for another round of storms later this afternoon.
Cities located in the threat zone for severe thunderstorms include Beaumont, Texas, as well as Lake Charles, Lafayette and Baton Rouge, La. Residents from eastern Texas to southwestern Mississippi will need to keep watch for rapidly changing weather conditions.
The greatest threats will be strong, damaging winds and blinding downpours.
Thunderstorm wind gusts to 60 mph and greater will be possible with the strongest storms. Wind speeds of that magnitude can cause significant damage, including downed trees and power lines. Strong winds can also blow roofs off houses and blow out windows.
Drenching downpours can make driving especially difficult. Those who will be traveling along I-10 in eastern Texas and southern Louisiana this afternoon should use extreme caution and slow down if caught in a heavy downpour.
Moreover, heavy rain can lead to flash flooding, especially in low-lying and poor drainage areas. Never drive across a flooded roadway. Turn around to seek an alternative route to your destination.
Thunderstorms will explode this afternoon south of a nearly stationary frontal boundary draped across the region. Abundant moisture courtesy of the Gulf of Mexico combined with daytime heating will lead to the eruption of potentially dangerous thunderstorms.
Heed all watches and warnings and have a plan in place before severe weather threatens. Know where to go and what to do in order to keep you and your family safe.
As always, continue checking back with AccuWeather.com for all of the latest severe weather updates.
Hurricane Matthew will take a northward turn this weekend, which will bring the storm along the Atlantic coast of the United States next week.
Hurricane Matthew will threaten the central and northern Caribbean with flooding rain, damaging winds and an inundating storm surge early next week.
It will feel like an extended winter for those living from the northern Plains to the eastern U.S., as cold and snowy conditions last longer than normal.
Persistent downpours will raise the flood risk in part of the mid-Atlantic into Friday night, while rain will spread over the balance of the northeastern United States into the weekend.
The final day of September will bring a rare lunar event that hasn’t occurred since March of 2014, a Black Moon.
The holiday weekend will start on an unsettled note, but the weather should improve by Day of German Unity celebrations on Monday.
Record dry September: Pittsburgh, PA - Only 0.28" this month; driest September on record (old record 0.57 inches in 1893) Greensboro, NC - Driest month ever (only a trace of rain) Columbia, SC - Only 0.07" of rain.
Central and Western NY (1991)
Record cold morning; Buffalo, had 32 degrees, tying the all-time September low. Syracuse dropped to 28 degrees, breaking the old record of 32 set in 1942. Albany hit 28, erasing the 29-degree mark of 1951. Other lows (not official records) included: 21 degrees at Angelica, 22 at Watertown, 24 at Ithaca and 25 at Elmira.
Johnstown, PA (1993)
Light snow in the city did not accumulate but up to 3" accumulated at the airport.