Talking Tropics

Clues August will open with a whisper across the Atlantic

18 hours ago

Clues August will open with a whisper across the Atlantic

August is typically the month the Atlantic hurricane season comes alive, when bigtime hurricanes are no longer the exception and when we start paying closer attention to each tropical wave plodding westward across the Atlantic from Africa.

Pacific sizzles as the Atlantic simmers

1 day ago

Pacific sizzles as the Atlantic simmers

Genevieve rapidly strengthened 75 mph in just 24 hours over the eastern Pacific over the weekend to top the scales as a Category 5 hurricane by the pre-dawn hours Monday. The frequency of such explosive strengthening is rare in the eastern Pacific – fewer than 1% of all “fixes” (6-hourly position and intensity estimates) made since 1970.

How El Niño transforms the typical pattern of Atlantic hurricane activity

2 days ago

How El Niño transforms the typical pattern of Atlantic hurricane activity

We’ve written a lot about El Niño – the abnormal warming of waters across the eastern Pacific around the equator – in this newsletter this year. With it shaping up to be one of the strongest El Niños on record, we want to cover all angles of where we could see (and are already seeing) its fingerprints this hurricane season.

Why the (sub) tropics matter a little more this hurricane season

Why the (sub) tropics matter a little more this hurricane season

In most hurricane seasons, we watch for the storms that form in the Atlantic’s main development region, or MDR, the primary hurricane belt stretching from Africa through the Caribbean south of 20 degrees north latitude, where most of our strongest and longest-lived hurricanes form.

Saharan dust unloads on the Atlantic

Saharan dust unloads on the Atlantic

The biggest dust outbreak of the year is trying to make up for lost time, with the first round of dust reaching the sands of South Florida yesterday and even thicker dust reinforcements moving over Florida and into the Gulf by this weekend, settling over coastal Texas by the early to middle part of next week.

Forecasters lower predictions for the 2026 Atlantic Hurricane Season

Forecasters lower predictions for the 2026 Atlantic Hurricane Season

Hurricane experts at Colorado State University (CSU) – the team that pioneered seasonal hurricane outlooks back in the 1980s – issued their July update Wednesday morning, revising earlier predictions for the 2026 Atlantic hurricane season downward for a second time since their initial forecast in April.

Checking in on the health of the Atlantic

Checking in on the health of the Atlantic

Typically by July we begin to get a better sense of the overall health of the Atlantic basin and how it’ll affect the peak months of the season in August, September, and October. This July the skies and seas of the Atlantic look beaten, bruised, and battered, which bodes well for curtailing overall hurricane activity in the months ahead.

Development odds dwindling for system off the southeast US

Development odds dwindling for system off the southeast US

A weak area of low pressure along a stalled front over the western Atlantic, about 400 miles to the southeast of the Carolinas, remains disorganized, and little to no development is expected over the next few days as the system drifts westward toward the southeast U.S.

June to end with the least active hurricane season start since 2019

June to end with the least active hurricane season start since 2019

Despite impactful flooding last week across the central Gulf Coast from the remnants of short-lived Tropical Storm Arthur — rainfall totals topping two feet in some places, bringing rainfall totals since May to nearly 50 inches across parts of southern Louisiana and Mississippi — it’s been largely crickets across the Atlantic since the start of the 2026 Atlantic hurricane season.

Watching for home brews to start July

Watching for home brews to start July

As June transitions to July next week, we’ll be keeping an eye off the shores of the southeast U.S. for an elongated area of low pressure tied to a stalled frontal zone that could spawn an area to watch by the middle to latter part of next week.

June out like a lamb in the Atlantic

June out like a lamb in the Atlantic

June is historically the least active month of the hurricane season, but that doesn’t mean the first month of the season can’t bring its fair share of issues.

Arthur’s remnants leave a trail of devastating flooding across the Deep South

Arthur’s remnants leave a trail of devastating flooding across the Deep South

Tropical Storm Arthur lasted only 12 hours as a named storm on Wednesday – one of the shortest-lived named storms in Atlantic basin records – but its stormy, water-logged remnants dragged a slug of torrential rains and severe weather through parts of the Deep South on Thursday, leading to widespread, devastating flooding from south and central Louisiana to southeastern Mississippi and lower Alabama.

Odds increase for short-lived tropical storm this week

Odds increase for short-lived tropical storm this week

A large tropical disturbance spinning inland over the mountains of northern Mexico – in part the remnants of once-Tropical Storm Cristina that crossed Central America late last week and now dubbed Invest 90L by the National Hurricane Center, the first Invest of the 2026 Atlantic hurricane season – is expected to briefly re-emerge over the coastal waters off Texas late Tuesday and Wednesday where odds are increasing it could make a brief run as the season’s first tropical storm.

Gulf disturbance to heighten flood threat from Texas to Georgia this week

Gulf disturbance to heighten flood threat from Texas to Georgia this week

A tropical disturbance that moved into northern Mexico over the weekend – partly the leftover spin of once-Tropical-Storm Cristina that crossed Central America from the eastern Pacific – will hitch a ride along an unusually strong and slow-moving cold front this week through the Deep South.

Monitoring the northern Gulf into next week

Monitoring the northern Gulf into next week

The disturbance that we began previewing in this newsletter over a week ago and that was first mentioned by NHC on Wednesday is now centered over the Bay of Campeche in the extreme southern Gulf.

Keeping an eye to the Central American gyre for late next week

Keeping an eye to the Central American gyre for late next week

The opening volleys of the 2026 hurricane season have unsurprisingly come from the eastern Pacific so far, where Amanda – the basin’s first named storm – formed late yesterday morning, and two more systems are poised to develop into next week off the Pacific coast.

Hurricane season starts today. Here’s what to expect for week 1 and beyond

Hurricane season starts today. Here’s what to expect for week 1 and beyond

Today marks day one of the 183-day Atlantic hurricane season, which runs through Nov. 30. Forecasters expect overall hurricane activity across the Atlantic basin to be softened this season by a potentially historic El Niño building in the eastern equatorial Pacific, which acts to deter would-be storms on the Atlantic side by ramping up hostile wind shear.

Melissa strikes eastern Cuba as a major hurricane after ravaging western Jamaica

Melissa strikes eastern Cuba as a major hurricane after ravaging western Jamaica

Hurricane Melissa, which devastated western Jamaica as one of the strongest hurricanes ever recorded, briefly restrengthened between Jamaica and Cuba late Tuesday before making a second landfall shortly after 3 a.m. ET Wednesday as a Category 3 hurricane about 40 miles west of Santiago de Cuba – the country’s second most populous city – in eastern Cuba.

Looking ahead to next week in the Caribbean

Looking ahead to next week in the Caribbean

A strong late-season tropical wave now moving through the central Atlantic could develop once it enters the Caribbean as upper-level winds turn increasingly conducive next week.

Atlantic ends the week on a quiet note

Atlantic ends the week on a quiet note

Since the basin reopened for business about a month ago following a bizarre 20-day drought with no active tropical systems through the traditional peak of the hurricane season, it’s managed to notch 6 of its 12 named storms and a full 60% of the season’s overall tropical activity as measured by the Accumulated Cyclone Energy or ACE.

Lorenzo limps along as the Atlantic takes a breath

Lorenzo limps along as the Atlantic takes a breath

Despite earlier forecasts showing Tropical Storm Lorenzo hanging around into the weekend, the unfriendly central Atlantic of mid October has done a number on it, and it’s no longer expected to survive the work week.

Disheveled Jerry to pass near the northern Leeward Islands today

Disheveled Jerry to pass near the northern Leeward Islands today

Despite a lopsided and disheveled appearance, Tropical Storm Jerry’s winds have gradually ticked up and it’s expected to be just shy of hurricane strength as its center curves north of the northern Leeward Islands along the northeastern edge of the Caribbean later today.

Imelda inbound for Bermuda

Imelda inbound for Bermuda

Hurricane Imelda is accelerating away from the U.S. but strengthening on a beeline to Bermuda for later today, where it’s forecast to bring strong winds to 100-plus mph, flooding rains, and powerful and destructive waves.

Imelda strengthens over the Bahamas as US threat lessens

Imelda strengthens over the Bahamas as US threat lessens

Tropical Storm Imelda formed Sunday afternoon just east of the southern tip of Andros Island in the northwestern Bahamas and continues to strengthen near Great Abaco Island in the northern Bahamas – about 200 miles east of southeast Florida – on Monday.

Imelda could form by this weekend and threaten the southeast US early next week

Imelda could form by this weekend and threaten the southeast US early next week

Humberto rapidly strengthened to a hurricane early Friday and is forecast to ramp up into a formidable major (Category 3 or stronger) hurricane this weekend, but it’s the disturbance to Humberto’s west that’s expected to develop and threaten the southeast U.S. – likely as Imelda – by late weekend and early next week.

Double Trouble: Dueling disturbances head west for the weekend

Double Trouble: Dueling disturbances head west for the weekend

Two vigorous tropical disturbances – designated Invest 93L (easternmost disturbance) and Invest 94L (westernmost disturbance) – are likely to develop in the coming days and could bring impacts to land, with the westernmost system tracking through the Bahamas and near Florida, Georgia, and the Carolinas for early next week.

Gabrielle clinging to life but forecast to recover this weekend

Gabrielle clinging to life but forecast to recover this weekend

Gabrielle, the 7th named storm of the Atlantic hurricane season, formed late Wednesday morning, the first named storm in the Atlantic since August 28th, breaking a remarkable 20-day stormless Atlantic streak and making it the latest first-forming September storm in over 30 years.

Depression forms, forecast to become Gabrielle later today

Depression forms, forecast to become Gabrielle later today

Invest 92L, the disturbance we’ve been following since early last week, was upgraded to the 7th tropical depression of the Atlantic hurricane season early Wednesday, breaking an unprecedented 20-day dry spell through what’s traditionally the busiest part of the season.

Tracking Invest 91L toward the eastern Caribbean islands for next week

Tracking Invest 91L toward the eastern Caribbean islands for next week

The tropical wave we’ve been following since last Thursday in this newsletter – designated Invest 91L by the National Hurricane Center early Thursday – is expected to become a tropical depression or named storm this weekend and could affect the easternmost islands of the Caribbean by the middle to latter part of next week.

Forecast models undecided on fate of Atlantic disturbance

Forecast models undecided on fate of Atlantic disturbance

The tropical wave that rolled off Africa Sunday – a system we’ve been following since last Thursday and discussed in detail in yesterday’s newsletter – continues to move harmlessly through the deep tropical Atlantic with only scattered, disorganized storminess.

New AI forecast model shines during Hurricane Erin

New AI forecast model shines during Hurricane Erin

Google DeepMind, a London-based AI research lab, has been in the business of machine learning-based weather forecasting for several years, but back in June announced a new experimental AI model specific to tropical storms and hurricanes that would be evaluated in real-time this season by forecasters at the National Hurricane Center.

Erin set to strengthen as forecast trends shift

Erin set to strengthen as forecast trends shift

Erin, the fifth named storm of the hurricane season, formed on Monday over the eastern Atlantic and is poised to strengthen into the first hurricane of the season by Thursday as it tracks westward.