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Soggy Airmass Over Alabama; Eyes On The Gulf

| May 22, 2018 @ 6:40 am

MUGGY LATE MAY DAYS: Alabama’s weather won’t change much through Friday as moist, unstable air hangs over the Deep South. Today we project a mostly cloudy sky with scattered to numerous showers and storms; temperatures will struggle to reach the low 80s with only a limited amount of sun. Then, tomorrow through Friday, the sun will be out at times, but once again we will deal with scattered showers and storms, most active during the afternoon and evening hours. Highs should be in the low to mid 80s on these three days.

POTENTIAL TROPICAL SYSTEM FOR THE HOLIDAY WEEKEND: Global models continue to develop a tropical low in the northern Gulf of Mexico Saturday. But, there is little agreement in details. The GFS model brings a broad low into the Florida Peninsula, then curving to the northwest in Alabama Monday. On the other hand, the European model (ECMWF) brings the low into the Mississippi coast Saturday, with a slow northward progression through Monday. Currently, NHC gives this a 40 percent chance of becoming a tropical storm or depression.

One way or another, the main impact will be enhanced rain coverage across the Gulf Coast states over the long holiday weekend. Guidance from WPC (NOAA’s Weather Prediction Center) shows potential rain of 4-6 inches for places like Mobile, Gulf Shores, and Pensacola, with 3-4 inch totals for places like Birmingham, Tuscaloosa, and Anniston…

So, at this point, the holiday weekend looks mostly cloudy with occasional rain and a few thunderstorms. Even with the tropical low there will be some decent breaks in the rain, and the sun could break out at times. Highs will be in the 78-82 degree range.

MEMORIAL DAY WEEKEND ON THE GULF COAST: Needless to say, at this point the weather looks unsettled if you are beach bound for the long weekend. Here are the key points…

*Although parts of the Gulf Coast will see enhanced rain over the weekend, there is still much uncertainty with the potential tropical system, so the location of the heaviest rain could easily change over the next few days. Where the heaviest rain does fall we could see some flooding issues.

*You should get a bit of sun in from time to time, but the sky will be generally cloudy on the coast Saturday through Monday from Gulf Shores east to Panama City Beach with occasional rain.

*It is unlikely that the system in the Gulf becomes a dangerous tropical storm or hurricane; the most likely scenario is a tropical depression, or weak tropical storm. One way or another, rain will be the big issue, not wind.

*Dangerous rip currents will become an issue as the low in the Gulf develops; heed the warning flags that will be flying on the beaches.

Click here to see the AlabamaWx Beach Forecast Center page.

NEXT WEEK: Deep tropical moisture stays in place, and we will maintain some risk of showers and storms on a daily basis Tuesday through Friday with highs mostly in the 80s. See the Weather Xtreme video for maps, graphics, and more details.

SPRING TORNADO SEASON WRAPS UP: On a positive note, based on the forecast upper air patter I think we can “stick a fork” in the spring tornado season for Alabama…. no risk of tornadoes through the rest of May, unless the tropical system in the Gulf brings a small spin up somewhere down south (which at this point looks unlikely). Typically the only tornado threat in Alabama in summer comes from tropical systems moving up from the south, and they tend to be fairly weak and short lived.

ON THIS DATE IN 2011: An EF5 tornado ravaged Joplin, MO… there were 158 fatalities and over 1000 injuries. It remains the deadliest tornado since modern record keeping began in 1950 and ranked 7th among the deadliest tornadoes in history.

SEC BASEBALL TOURNAMENT: The 2018 SEC Baseball Tournament runs today through Sunday at the Hoover Met. Don’t miss some of the best baseball in the country as the top-12 teams will battle it out in Hoover on the road to Omaha. Join us for the indoor FanFest which is free to the public, open each day of the tournament and fun for all ages. Single-session tickets are $18 each for adults and $9 each for kids 3-12. Bleacher seats are first-come, first-served in the General Admission sections. GET YOUR TICKETS HERE!!!

WEATHER BRAINS: Don’t forget you can listen to our weekly 90 minute netcast anytime on the web, or on iTunes. This is the show all about weather featuring many familiar voices, including our meteorologists here at ABC 33/40.

CONNECT: You can find me on all of the major social networks…

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Look for the next Weather Xtreme video here by 4:00 this afternoon… enjoy the day!

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Category: Alabama's Weather, ALL POSTS, Weather Xtreme Videos

About the Author ()

James Spann is one of the most recognized and trusted television meteorologists in the industry. He holds the AMS CCM designation and television seals from the AMS and NWA. He is a past winner of the Broadcast Meteorologist of the Year from both professional organizations.

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