Much cooler and drier air to reach Michael-slammed areas of Florida, Georgia this weekend
By Alex Sosnowski, AccuWeather senior meteorologist
October 19, 2018, 3:20:59 AM EDT
Much cooler and less humid air is forecast to make its way into the Deep South, including Michael-slammed areas of Florida and Georgia this weekend, before the potential for heavy rain later next week.
High temperatures have been flirting with record high levels over the past few days. Temperatures in general have been averaging 5-10 degrees Fahrenheit above normal.
A cold blast slicing across the Midwest and Northeast this weekend will eventually send cool air to the Gulf coast.
"Prior to much cooler air's arrival this weekend, slightly lower temperatures are in store into Friday, thanks to an east to northeasterly breeze," according to AccuWeather Senior Meteorologist Brett Anderson.
The more immediate cooling will be much more pronounced across the northern parts of Alabama, Georgia and the Carolinas and may be accompanied by clouds and spotty showers in some locations.
A stronger push of cooler air is scheduled to arrive Saturday night. The much lower temperatures are then expected to last though much of next week.
People may notice a change as far south as central and South Florida, let alone the Florida Panhandle and southern Georgia.
"High temperatures well into the 80s and nighttime lows near 70 will be replaced with highs in the 70s and nighttime lows in the 50s and 60s," Anderson said.
"The period from Sunday to Tuesday will bring noticeably lower humidity."
Disasters like catastrophic hurricanes can take as much of a toll on mental health as physical
How to avoid drinking contaminated water after a hurricane
How to use a generator safely after a hurricane strikes
Cooler and less humid air will spread down much of the Florida Peninsula later this weekend as well.
Next week may become wet or trend even cooler
As next week progresses, humidity levels will rise, while a return of cloud cover and some rainfall will keep high temperatures suppressed.
There is the potential for locally heavy rainfall during the middle to latter part of next week as tropical moisture becomes involved.
There is a slight chance for a low-grade tropical feature to crawl eastward along the upper Gulf coast which may contribute to the rain later next week. However, at this time, there is a very low risk of the strengthening of any feature due to proximity to the coast and wind shear that is forecast to be be strong in the region.
Wind shear is the increase in wind speed with increasing elevation or over horizontal distance in the atmosphere. When wind shear is too strong, tropical systems typically weaken or fail to develop.
There is also the chance that a southward dip in the jet steam may increase in the Eastern states next week.
If that big jet stream plunge occurs and holds on, it could be enough to keep heavy rain away a while longer and allow even cooler and drier air to spill southward.
Even if heavy rain fails to materialize by the middle of next week, the track of a tropical system from the eastern Pacific could be a player late next week.
That storm may pass to the north of the region, but could still pack enough punch for a round of heavy thunderstorms and perhaps severe weather to end next week.
Storm drains that have been blocked by debris or filled with sand even well inland of the coast from Michael may contribute to urban flooding with the anticipated rain next week or any storm with heavy rain that comes along.
People that have brought belongings outside of their damaged homes and businesses to clean and salvage them may need to cover these items with tarps or move them to a sheltered location.
A substantial amount of wind shear currently exists across the prime development areas of the Atlantic basin, including the Gulf of Mexico and the Caribbean Sea.
"The wind shear and pockets of dry air will continue to act as a deterrent to tropical storm formation into at least the first part of next week," according to AccuWeather Hurricane Expert Dan Kottlowski.
Comments that don't add to the conversation may be automatically or manually removed by Facebook or AccuWeather. Profanity, personal attacks, and spam will not be tolerated.
More Weather News
Weather News - January 21, 2019, 3:27:59 AM EST
A total lunar eclipse glowed red in the night sky on Sunday night, the last of its kind anywhere in the world until 2021.
Weather News - January 20, 2019, 7:59:19 PM EST
A major winter storm moved across the Midwest and Northeast this weekend, blanketing areas of the region with snow and bringing some of the coldest temperatures of the season.
After the storm: Dangerous stretch of subzero AccuWeather RealFeel® Temperatures to grip northeastern US
Weather News - January 21, 2019, 3:32:03 AM EST
A polar plunge of brutal cold has descended on the northeastern United States, which can threaten lives and complicate travel and cleanup efforts following the weekend snowstorm.
Weather News - January 21, 2019, 3:34:34 AM EST
A quick-hitting shot of snow to start the new week across the Rockies will be enough to cause travel issues but a fresh base for the ski resorts.
Weather News - January 21, 2019, 3:52:49 AM EST
A brief surge of warmer air at midweek will be accompanied by a storm that brings drenching rain and the risk of urban flooding, but also areas of ice on the front end.
Weather News - January 21, 2019, 3:54:52 AM EST
A storm will affect the Midwest with areas of snow, ice and rain as air changes hands from frigid conditions to mild and back to cold at midweek.
Weather News - January 20, 2019, 10:25:17 AM EST
Out of season rain moving into northwestern India this week may improve air quality in areas from New Delhi, Jaipur, Agra and Lucknow.
Weather News - January 20, 2019, 3:01:45 PM EST
A major winter storm continues to create travel nightmares and a risk of power outages in the northeastern United States with an ice storm across southern New England and feet of snow to the north.