A new tropical depression forms in the Caribbean Sea.

A new tropical depression forms in the Caribbean Sea.

More humidity today with isolated showers.

A Windy Weekend and Angels in the Sky

In the Northwestern Caribbean Sea and Gulf of Mexico, a low-pressure system is making waves over a large area.

Weather Forecasting has changed throughout the decades. Today, the National Hurricane Center Hurricane Season has recently introduced new terms for different storm categories.

As Hurricane Francine barreled toward Louisiana on Wednesday, three more tropical systems in the Atlantic Ocean are also staying on the radar of the National Hurricane Center.

The low-pressure system that the National Hurricane Center has been monitoring over the central tropical Atlantic has developed organized and deep convection in bands around the center.

Air Force Reserve aircraft indicated well-defined center of circulation

Tropical Depression 10 has formed, Warm and dry tonight

Tropical Depression Lisa has moved into southern Mexico a day after making landfall as a hurricane in the Central American nation of Belize and heading inland over northern Guatemala.

Potential Tropical Cyclone 15 morphed into Tropical Storm Lisa on Monday morning.

On Friday, News4JAX stopped in on the most vulnerable areas where people were keeping a close watch.

Flagler County officials are urging residents to take time this weekend for storm preparations.

Tropical Depression 18 strengthened into Tropical Storm Sam on Thursday and then a hurricane early Friday before becoming a major hurricane Saturday morning.

The newest Tropical Depression formed late Sunday night, Tropical Depression Eight.

As of 5 p.m., a disorganized Grace was about 200 miles east-southeast of Santo Domingo, Dominican Republic. Its max sustained winds are 35 mph.

It is surprising Boston will be hotter than Jacksonville over the next three days. That heat has been overshadowed by the longer lasting meltdown on the west coast. A massive heat wave sent temperatures into the mid 100s around Arizona and Oregon and the boiling conditions will last all week.

At 1100 AM EDT the center of Tropical Depression Four was located near latitude 31.9 North, longitude 78.3 West. The depression is moving toward the west-northwest near 16 mph and this general motion is expected to continue for the next couple of days. On the forecast track, the center of the tropical cyclone should make landfall along coast of South Carolina in the warning area later this evening.

JACKSONVILLE, Fla. – Eta is bringing heavy squalls with tropical-storm-force winds onshore as it tracks northeast across Northeast Florida. Ron DeSantis on Wednesday expanded a state of emergency and asked President Donald Trump for a federal emergency declaration as Tropical Storm Eta prepared to make landfall Thursday. It will be a weak tropical storm or possibly even a depression as it moves across Northeast Florida. About 5 p.m., Clay County District Schools announced all schools and offices within the district will be closed on Thursday, and all after-school activities will be canceled. The Bradford County School District said it is closing schools Thursday due to Eta.

JACKSONVILLE, Fla. – Rain-heavy Tropical Storm Eta strengthened on Sunday as it headed for a drenching collision with Central America. The system ties the record for the most named storms in an Atlantic hurricane season. The storm is forecast to strengthen into a Category 1 hurricane by Monday before making landfall near Honduras and Nicaragua as a hurricane. Eta is the 28th named Atlantic storm this season, tying the 2005 record for named storms. Hurricane season still has a month to go, ending Nov. 30.

JACKSONVILLE, Fla. – The National Hurricane Center has been watching an unorganized cluster of thunderstorms in the Caribbean for the past few days. According to the NHC, recent visible and microwave satellite images suggest that the system almost certainly now has a well-defined center and it was upgraded to Tropical Depression 29. The system is in the Central Caribbean, about 315 miles southeast of Kingston Jamaica, and moving west at 15 mph with sustained wind speeds of 35 mph. The storm is forecast to strengthen into Tropical Storm Eta by Sunday and then a Category 1 hurricane by Monday before making landfall near Honduras and Nicaragua as a hurricane. Although the path does not show the system moving into the Gulf, The Weather Authority will watch it closely in the coming days.

JACKSONVILLE, Fla. – Tropical Storm Iota formed Friday afternoon in the Caribbean and is expected to strengthen into a hurricane as it approaches Central America. Iota is the 30th named storm of this year’s record-breaking Atlantic hurricane season. The spaghetti models for this system vary widely in what direction the storm will head. What the forecast models do generally agree on is that this system will be on the weaker side. The forecast models should come to a better agreement now that the system has actually formed and as it starts moving forward.

The center of Hurricane Delta was located near latitude 24.8 North, longitude 93.4 West. Delta is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Some weakening is possible as Delta approaches the northern Gulf coast on Friday, with rapid weakening expected after the center moves inland. Within minutes of the National Hurricane Center upgrading Delta to a Category 3 hurricane Tuesday morning, data from a NOAA Hurricane Hunter aircraft indicated that sustained winds had increased to 130 mph. Residents in these areas should ensure they have their hurricane plan in place and monitor updates to the forecast of Delta,” the Hurricane Center said.

JACKSONVILLE, Fla. – Gamma has now weakened into a Tropical Depression after crossing the Yucatan peninsula. The hurricane center said Gamma was about 190 miles east-northeast of Progreso, Mexico, and had maximum sustained winds of 60 mph. Gamma is forecast to gradually turn toward the southwest later Monday and continue to move slowly in that direction through mid-week. On the forecast track, the center of Gamma will continue to meander offshore of the northern Yucatan Peninsula through Wednesday. Maximum sustained winds are near 50 mph with higher gusts.

JACKSONVILLE, Fla. – The tropical storm that formed Saturday off south Florida is strengthening over the warm Gulf waters is expected to approach the Gulf Coast on Monday night with high winds and a life-threatening storm surge. At 8 a.m. Monday, Tropical Storm Sally has 65 mph sustained winds and was centered about 115 miles east southeast of the mouth of the Mississippi River. The National Hurricane Center said dangerous storm surge was possible along the northern Gulf Coast starting on Monday and added hurricane conditions could set in there early Tuesday. A tropical storm watch was extended westward from the Okaloosa/Walton County line in Florida to the Alabama-Florida line. Tropical Storm Rene weakened in recent hours and was reclassified as a tropical depression.

The NHC began issuing advisories on Tropical Depression 19 at 5 p.m. Friday. Forecasters predict 2 to 4 inches with isolated maximum amounts of 6 inches across west-central and southern Florida, including the Florida Keys, through Sunday. The depression is expected to grow into Tropical Storm Sally once it is over open water in the Gulf of Mexico later in the day. It will be the 18th named storm of this over-the-top hurricane season. Sally could intensify to a strong tropical storm or even Category 1 hurricane as it approaches the Mississippi/Louisiana coastline early Wednesday morning.

JACKSONVILLE, Fla. – Floridians need to be very watchful as Tropical Depression 13 -- likely a tropical storm on Friday -- could impact the state of Florida in just five days. A tropical storm watch is out for Puerto Rico, Vieques and Culebra, the U.S. Virgin Islands and the British Virgin Islands. RELATED STORIES: Tropical Depression 14 forms, to head into the Gulf | Wind shear fades over the Main Development Region of the tropics - A bad omen? | Mid-August starts a critical shift in Jacksonville’s weather patternThis is the 13th tropical depression for this season, a record for the earliest 13th tropical depression of any season (169 years). ONLINE TOOLS: Interactive tracking map | Plan and PrepareA second system being watched by the hurricane center became Tropical Depression 14 and is also expected to become a tropical storm by the end of the day.

With the current forecast track for Potential Tropical Cyclone 9, our local forecast actually improves for the weekend. A Tropical Storm Warning remained in effect for the Northwestern Bahamas, excluding Andros Island. A Tropical Storm Watch was issued Friday for part of Florida's East Coast, from Jupiter Inlet to the Flagler-Volusia County line. Tropical storm conditions are possible in the watch area on the Florida peninsula by Saturday. This graphic shows what the Global Forecast System model predicts for this system over the weekend.