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The National Hurricane Center is now tracking five tropical disturbance s, including one in the Gulf of Mexico that's expected to bring heavy rain to portions of the Gulf Coast .
If there's any good news, it's that all have a low chance of developing over the next seven days.
The system in the Gulf of Mexico is the same one that drenched Texas over the Labor Day weekend. It re-appeared as something to watch on the National Hurricane Center's tropical outlook map at 8 a.m. Thursday.
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The system could bring six to 10 inches of rain across the coastal Panhandle and west Big Bend area of Florida through the weekend, and some areas could see more than 12 inches, according to the Florida Department of Emergency Management.
It's expected to reach the Atlantic coast by the weekend, according to AccuWeather.
The tropical waves the Hurricane Center highlighted on its tropical outlook map are located:
- In the northwest Gulf of Mexico
- In the northwestern Atlantic
- In the western Caribbean Sea
- In the central Atlantic.
- In the eastern Atlantic
Water temperatures in the Gulf of Mexico are extremely high, which helps tropical cyclones develop and strengthen.
Historically, about two-thirds of all Atlantic hurricane activity occurs between Aug. 20 and Oct. 10, said Philip Klotzbach , meteorologist at Colorado State University specializing in Atlantic basin seasonal hurricane forecasts.
Expect tropical activity to ramp up
Wind shear, which has helped prevent tropical waves from organizing, is expected to lessen by the middle of September.
Along with the long-expected transition to La Niña and reduction in the amount of Saharan dust, forecasters are expecting tropical activity to increase this month.
The next named storm of the season will be Francine.
Here's the latest update from the NHC as of 8 a.m., Sept. 5:
What's out there and how likely are they to strengthen?
Northwest Gulf of Mexico: A trough of low pressure is producing widespread disorganized showers and thunderstorms across the northwestern Gulf of Mexico, including near the coasts of Louisiana and Texas.
Upper-level winds are expected to become less conducive for development by Friday and Saturday as a frontal boundary approaches the system.
Although development is unlikely, heavy rainfall is expected across portions of the northern Gulf Coast during the next day or so.
- Formation chance through 48 hours: low, 10 percent.
- Formation chance through 7 days: low, 10 percent.
Northwestern Atlantic: A non-tropical area of low pressure located a few hundred miles east of North Carolina is producing disorganized showers and thunderstorms to the northeast and east of its center.
This system could acquire some subtropical characteristics over the next couple of days while it moves generally north-northeastward, remaining offshore of the northeastern United States. Once the low moves over cooler waters by late Saturday, further subtropical development is not expected.
- Formation chance through 48 hours: low, 20 percent.
- Formation chance through seven days: low, 20 percent.
Eastern Tropical Atlantic: A broad area of low pressure over the eastern tropical Atlantic is producing disorganized showers and thunderstorms. Some slow development of this system is possible during the next several dayswhile it drifts northwestward or northward.
- Formation chance through 48 hours: low, 10 percent.
- Formation chance through seven days: low, 20 percent.
Northwestern Caribbean Sea and Southwestern Gulf of Mexico: Shower and thunderstorm activity has increased slightly in association with a westward-moving tropical wave located over the western Caribbean Sea.
Significant development appears unlikely before the system reaches Belize and the Yucatan Peninsula by early Friday.
Some development is possible late in the weekend into early next week after the system emerges over the southwestern Gulf of Mexico.
- Formation chance through 48 hours: near 0 percent.
- Formation chance through 7 days: low, 30 percent.
Central Tropical Atlantic: Another tropical wave located a few hundred miles east of the Leeward Islands is producing limited shower and thunderstorm activity.
Strong upper-level winds are expected to limit development of this system during the next few days while it moveswest-northwestward at 10 to 15 mph.
By early next week, environmental conditions could become more conducive for some slow development while the system moves west-northwestward over the southwestern Atlantic Ocean.
- Formation chance through 48 hours: low, near 0 percent.
- Formation chance through 7 days: low, 10 percent.
What do the colored areas on the NOAA map mean?
The hatched areas on a tropical outlook map indicate "areas where a tropical cyclone — which could be a tropical depression, tropical storm or hurricane — could develop," said National Hurricane Center Deputy Director Jamie Rhome.
The colors make it visibly clear how likely a system could develop with yellow being low, orange medium and red high.
The National Hurricane Center generally doesn't issue tropical advisories until a there is a named storm, but there is an exception.
"If a system is near land and there is potential for development, the National Hurricane Center won't wait before it issues advisories, even if the system hasn't become an actual storm. This gives residents time to prepare," Rhome said.
Who is likely to be impacted?
The system near the coasts of Louisiana and Texas is expected to bring heavy rainfall across portions of the northern Gulf Coast during the next day or so. From Friday to Saturday, the main heavy rain zone will focus on northern Florida, the southern portions of Alabama and Georgia and the South Carolina coast, according to AccuWeather.
The tropical wave in the western Caribbean is bringing scattered showers and isolated thunderstorms to the northwestern Caribbean Sea, including waters near the Cayman Islands and Jamaica, and in the Gulf of Honduras.
It's too early at this time to determine if there will be any impact to Florida or the U.S. from any of the tropical waves.
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Forecasters urge all residents to continue monitoring the tropics and to always be prepared. That advice is particularly important for what is expected to be a very active hurricane season.
Florida tax holiday: Time running out to save on hurricane supplies
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Florida's final disaster preparedness tax holiday is winding to a close, but you still have a two more days to save money on any needed hurricane supplies for you or your pet.
The tax holiday ends Sept. 6, just days before the peak of hurricane season arrives. And don't forget the busiest period historically lasts until mid-October. This year, though, tropical threats could extend through November and possibly into December this year, due in part to extremely warm water temperatures, Porter said.
Here's what you can buy tax free:
- A portable generator used to provide light or communications or preserve food in the event of a power outage with a sales price of $3,000 or less.
- A tarpaulin or other flexible waterproof sheeting with a sales price of $100 or less.
- An item normally sold as, or generally advertised as, a ground anchor system or tie-down kitwith a sales price of $100 or less.
- A smoke detector or smoke alarm with a sales price of $70 or less.
- A fire extinguisher with a sales price of $70 or less.
- A carbon monoxide detector with a sales price of $70 or less.
- A nonelectric food storage cooler with a sales price of $60 or less.
- A portable power bank with a sales price of $60 or less.
- A gas or diesel fuel tank with a sales price of $50 or less.
- A portable self-powered radio, two-way radio, or weather-band radio with a sales price of$50 or less.
- A package of AA-cell, AAA-cell, C-cell, D-cell, 6-volt, or 9-volt batteries, excluding automobileand boat batteries, with a sales price of $50 or less.
- A portable self-powered light source (powered by battery, solar, hand-crank, or gas) with asales price of $40 or less.
- Flashlights
- Lanterns
- Candles
- Reusable ice (ice packs) with a sales price of $20 or less.
Do you need a generator? With active hurricane season ahead, do you need a generator in Florida? Here's how to decide
Also included in the tax holiday are any supplies necessary for the evacuation of household pets. Necessary supplies means the noncommercial purchase of:
- Bags of dry cat or dog food weighing 50 or fewer pounds and with a sales price of $100 or less per bag.
- Portable kennels or pet carriers with a sales price of $100 or less per item.
- Over-the-counter pet medications with a sales price of $100 or less.
- Pet beds with a sales price of $40 or less per item.
- Cat litter weighing 25 or fewer pounds and with a sales price of $25 or less per item.
- Leashes, collars, and muzzles with a sales price of $20 or less per item.
- Pet pads with a sales price of $20 or less per box or package.
- Manual can openers with a sales price of $15 or less per item.
- Collapsible or travel-sized food bowls or water bowls with a sales price of $15 or less per item.
- Cat litter pans with a sales price of $15 or less per item.
- Pet waste disposal bags with a sales price of $15 or less per package.
- Hamster or rabbit substrate with a sales price of $15 or less per package.
- Cans or pouches of wet dog food or cat food with a sales price of $10 or less per can or pouch or the equivalent if sold in a box or case.
Weather watches and warnings issued in Florida
When is the Atlantic hurricane season?
The Atlantic hurricane season runs from June 1 through Nov. 30.
The Atlantic basin includes the northern Atlantic Ocean, Caribbean Sea and Gulf of Mexico.
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When is the peak of hurricane season?
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The peak of the season is Sept. 10, with the most activity happening between mid-August and mid-October, according to the Hurricane Center.
National Hurricane Center map: What are forecasters watching now?
Systems currently being monitored by the National Hurricane Center include:
Interactive map: Hurricanes, tropical storms that have passed near your city
Excessive rainfall forecast
What's next?
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This article originally appeared on Treasure Coast Newspapers: National Hurricane Center tracking 5 disturbances. Newest one could affect Florida
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