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Heavy Rain to Saturate the South

21 Jan 2021, 7:00 am

States like Texas, Louisiana, Arkansas and surrounding states are expected to see a lot more moisture through the rest of this week. A ridge of high pressure across the Gulf of Mexico will bring in Gulf moisture the next several days as well as a subtropical jet stream which will pump in Pacific moisture to the upper levels of the atmosphere.

Forecast

Thursday

Our next frontal boundary starts to sweep into Oklahoma throughout the morning. Moisture fills into Texas from San Angelo through Lubbock and even into Louisiana and Mississippi. The lift from the front will help enhance areas of very heavy rain across the I-20 corridor from San Angelo to Dallas, Shreveport, Louisiana and into Mississippi.

During the afternoon and evening, the frontal boundary will push slowly south and eastward. Areas of North and East Texas, the Arklatex and into the rest of our Gulf Coast states sees a lot of rain, moderate to heavy at times.

The frontal boundary stalls tonight. This means heavy rain will train over a lot of the same areas bringing a risk for high rainfall totals across the Gulf Coast states.

Friday

By Friday, most of Texas will see a break from the downpours, but additional rain is expected through Louisiana Mississippi, Alabama, and Georgia. Rain will start to stretch to the Atlantic by Friday evening.

Forecast Accumulation

With rain expected over the next several days, some totals may get up to 2-4″ across north and central Texas, Louisiana, and into central Mississippi. Isolated areas may get up to 5″ of rain as a corridor of heavy rain sets up in the Lower Mississippi Valley. A wide swath of central Louisiana and central and southern Mississippi could see isolated flooding, especially in prone areas with the excessive the amount of heavy rain expected.

Stay with WeatherNation for updates on this system along with all of the other top weather headlines!

About the author
Alana Cameron was born and raised in Canada in the city of Mississauga, just outside of Toronto. Alana is the oldest of 4 siblings, all close in age, and grew up playing outside with them in all types of weather. After graduating high school, Alana moved to study at the University of British Columbia in Kelowna for a year before transferring to Dalhousie University in Halifax, Nova Scotia where sh... Load Moree completed a Bachelor of Science in Physics and Atmospheric Science. Upon completion, Alana moved back to Toronto where she completed a post-grad degree in Meteorology at York University. After her post-grad, she went on to complete another post-grad in Broadcast Journalism - TV News at Fanshawe College in London, Ontario. During her final year of studies she had the privilege of interning with the best in the business in Canada at The Weather Network. Once she finished her internship, she got the call from small-town Denison, Texas where she accepted a job as an on-air meteorologist at KTEN-TV, right in tornado alley, covering severe weather from Sherman/Denison (North Texas) to Ada (Southern Oklahoma). After the most active tornado season Oklahoma had seen in May 2019 (105 tornadoes!) Alana is excited to join WeatherNation to cover weather all across the nation. If you're interested in following her on social media she can be found @alanacameronwx!