How Serious Does The Atlantic Tropical Wave Appear?

news image
Special Stories
16 Aug 2018 10:02 PM
We're here to keep you updated regarding everything tropics! Right now, we're going to take a closer look at a tropical wave that is going to impact the Leeward and Windward Islands, then enter the Caribbean. It's called Invest 99L. Invest 99L is the name of this tropical wave that is being investigated by the National Hurricane Center. The yellow area shows the tropical wave's projected path through this weekend (18th-19th). As of Thursday, there weren't a lot of hurricane models predicting this storm. The few that were showed a track through the Caribbean Sea. Sea surface temperatures in the Caribbean are warm enough for tropical cyclone development or strengthening, so that is a factor in favor of a tropical depression or storm forming. However... This weekend, the tropical wave is expected to encounter *less favorable conditions* for development, in regards to wind shear. Wind shear is plotted in red here. This is a factor *against* significant tropical development. The tropical wave will bring pockets of heavy rain and gusty wind to the Windward and Leeward Islands Friday and Saturday. After the tropical wave moves into the Caribbean, we need to watch what happens! The good news is, there are not a lot of red flags (at the moment) for this tropical wave to rapidly intensify into a strong storm. However, we are approaching the peak of hurricane season (mid-September) when history tells us most storms form. It's always best to be hurricane ready, just in case. We will continue to update you regarding this story. For WeatherNation, Meteorologist Steve Glazier
All Weather News
More
Severe Storms Return to the Southern Plains Friday & Saturday

Severe Storms Return to the Southern Plains Friday & Saturday

TEXAS - Strong storms that produced nearly 80

28 May 2026 9:30 PM
Heavy Rain and Flooding Threat Continues Across the South

Heavy Rain and Flooding Threat Continues Across the South

More rounds of heavy rain are expected to mov

28 May 2026 9:10 PM
Northern Plains Heat Pushes into Upper Midwest

Northern Plains Heat Pushes into Upper Midwest

Record high temperatures have been breaking s

28 May 2026 7:15 PM
Severe Storms Possible in the Pacific Northwest

Severe Storms Possible in the Pacific Northwest

You read that right! An unusual setup could l

28 May 2026 10:55 AM
Severe Storms Threaten Nation's Capital

Severe Storms Threaten Nation's Capital

The Storm Prediction Center has highlighted a

27 May 2026 11:35 PM
Severe Storms, Heavy Rain Target the Southeast

Severe Storms, Heavy Rain Target the Southeast

WHAT TO EXPECTHeavy rain has already hit nume

24 May 2026 8:00 PM
NOAA Releases Summer Outlook, Above Average Temperatures Expected

NOAA Releases Summer Outlook, Above Average Temperatures Expected

The National Oceanic and Atmospheric Administ

24 May 2026 3:00 PM