Tropical Storm Arthur forms off Texas coast

Wednesday, June 17, 2026 5:30PM
Tropical Storm Arthur forms off Texas coast

June 17 10 a.m. Update

Tropical Storm Arthur has formed just offshore of Southeast Texas with sustained winds of 40 mph, gusts up to 50 mph and a minimum central pressure of 1001 mb. This is the first storm of the 2026 Atlantic Hurricane Season. A Tropical Storm Warning remains in effect for coastal Brazoria, Galveston and all of Chambers County Wednesday. The main threats to Southeast Texas will reside closest to the coastline where tropical-storm force winds could lead to minor property damage and power outages and heavy rains could lead to flooding.

June 17 Update

Potential Storm One has emerged over the northwest Gulf Wednesday morning. NHC forecast track brings the system northeastward along the Texas coast and then moving inland over southwestern Louisiana by Wednesday night. Regardless, tropical downpours and tropical storm force winds will be ongoing through the evening and then calm as the storm lifts into Louisiana overnight. Rainfall totals of 4-7 inches possible, with isolated higher totals near 12 inches. Coastal flooding remains possible and dangerous storm surge through Wednesday evening.

June 16 4 p.m. Update

A Tropical Storm Watch is still in effect for coastal Brazoria, Galveston and all of Chambers County ahead of this tropical low moving offshore and potentially forming into Arthur Wednesday. The latest track from the hurricane center keeps Arthur's low pressure center close to the Texas coastline, tracking along Southeast Texas Wednesday. One small difference in the potential storm's intensity if that Potential Storm One could remain more of a tropical low or depression Wednesday morning and not strengthen into Arthur until later in the day Wednesday. There is also the possibility this tropical low never fully forms into a system too. However, we're still expecting some impacts along the coast. Wind gusts could range between 30 to 40 mph at times Wednesday for communities within the Tropical Storm watch. Elsewhere across SE Texas we could see gusts at times upwards to 25 to 30 mph. A storm surge of 1 to 4 feet Wednesday could also bring coastal flooding and even flash flooding when paired with heavy rains. There's also the chance for street and urban flooding, possibly flash flooding, in Houston and Harris County Wednesday depending on the tropical downpours that form with this system.

June 16 10:30 a.m. Update

NHC has issued its first advisory on Potential Storm One. The system is forecast to emerge into the northwest Gulf overnight and is expected strengthen into Tropical Storm Arthur. Rainfall: 4-8 inches will be widespread, with isolated totals up to 12". Flash flooding will continue until Thursday morning. A Tropical Storm Watch from Sargent, TX to Morgan City, LA. Storm surge of 2-4 feet possible along parts of the upper Texas and Louisiana coast. The system is expected to track near the Upper Texas Coast Wednesday, then make landfall near the Texas/Louisiana border late Wednesday into Thursday.

June 16

The National Hurricane Center is giving low pressure over South Texas a 60% chance of becoming a tropical depression or storm once it moves offshore on Wednesday. The system could re-emerge over the northwestern Gulf today, and environmental conditions are expected to be marginally conducive for the formation of a short-lived tropical storm later today or on Wednesday. The track of that low will determine how much rainfall we get Wednesday and Thursday.

June 15 1 p.m. Update

The disturbance currently in northeastern Mexico now has 50% odds of forming into a tropical depression or storm as it moves into the northwestern Gulf on Wednesday. This system would likely form just offshore of the Texas coast midweek, sometime Wednesday or Thursday, then quickly move onshore a day or so later. Still, the main impacts that would face those of us in Southeast Texas would be the potential for widespread street flooding and the possibility for life-threatening flash flooding prompted by heavy, tropical downpours. Tropical Storm Watches and Warnings could be issued for parts of Texas and Louisiana as early as Tuesday. The Hurricane Hunters are scheduled to fly into this disturbance Tuesday night and Wednesday morning.

June 15

A disturbance over northeastern Mexico continues to produce disorganized showers and thunderstorms, but development is not expected during the next day or so while it remains inland. The system is expected to move northeastward and could re-emerge over the northwestern Gulf Tuesday or Wednesday, where environmental conditions may support some development around midweek. Regardless of development, an increase in storm chances and potentially heavy rainfall is expected for Southeast Texas as the disturbance gets closer.

June 14

No doubt that deeper tropical moisture is now in place across Southeast Texas. You can feel the increase in humidity, and you can see the increase in rain chances as well. That deeper moisture sticks around through at least Tuesday, but it's mid-week when things get a bit more interesting in the Gulf. A disturbance currently located over Mexico could drift back into the Gulf on Wednesday, and there is some model support for it becoming a loosely organized low pressure system as it rides along the Texas Gulf Coast. Right now the National Hurricane Center has placed 20% development odds on this system, with a 0% chance of development by Tuesday. Regardless of development, we will need to keep an eye on this for increase rain chances and potentially heavy rain around Thursday as the disturbance gets closer to Southeast Texas.

June 13

The National Hurricane Center has tagged an area of deep tropical moisture in the western Gulf with a 20% chance of topical development. Regardless of any development (which looks highly unlikely), it will work to spread an increase in moisture our way in the coming days, increasing our rain chances Sunday/Monday/Tuesday.

June 12

We're monitoring the Bay of Campeche over the next couple of days as a broad area of low pressure could form. Development odds are low at 10 percent. While it doesn't look very likely to become anything tropical, it could work with a cold front to spread some widespread moisture our way by the weekend into early next week.

June 11

Cristina has dissipated in the Pacific, but the remnant moisture is expected to move for the southwest Gulf over the weekend. The National Hurricane Center has given the remnants of this storm a 10% chance of re-forming into an Atlantic tropical system over the Bay of Campeche. That's the moisture that will bring Southeast Texas a high chance for heavy downpours and a risk of flash flooding Sunday through Tuesday.

June 10

We're monitoring the Bay of Campeche over the next few days as a broad area of low pressure could form. Development odds are low at 10 percent. While it doesn't look very likely to become anything tropical, it could work with a cold front to spread some widespread moisture our way by the weekend into early next week.

In the Pacific, Tropical Storm Cristina continues to swirl off the coast of El Salvador. Moisture from Cristina is expected to move into the Gulf over the weekend.

June 9

The Atlantic Basin remains quiet to start out the 2026 Atlantic Hurricane Season. While no development is expected over the next 7 days, we are keeping an eye on a swatch of deep moisture in the Gulf later this week. It doesn't look very likely to become an official tropical system, however it could work with the jet stream to spread some added moisture our way by the weekend. For now we're holding rain chances over the weekend at 30%, but if deeper moisture spreads this way those numbers will have to climb.

June 8

No Tropical Development is expected over the next 7 days, but that doesn't mean we don't have areas of interest that could impact our weather. Of greatest significance is an area of deeper tropical moisture in the Bay of Campeche late this week. While it doesn't look very likely to become an official tropical system, it could work with the jet stream to spread some added moisture our way by the weekend. For now we're holding rain chances over the weekend at 30%, but if deeper moisture spreads this way those numbers will have to climb.

June 7

The key story in the Tropics is that, for now, no tropical development is expected over the next 7 days. That's always a win, but it doesn't mean we are turning a blind eye to the Caribbean and Gulf. Deep tropical moisture is gathering in the Southern Gulf this week, and it's not completely out of the question that we get our first tropical depression from it. Regardless of development, we aren't certain where exactly that deeper moisture will end up. If it heads this way, you could see our rain chances climbing into next weekend.

June 6

The Atlantic Basin remains quiet to start out the 2026 Atlantic Hurricane Season. While no development is expected over the next 7 days, we are keeping an eye on a swatch of deep moisture in the Gulf later this upcoming week.

June 5

With Saharan dust in the deep tropics and high wind shear over the gulf and Caribbean, no tropics development is expected over the next 7 days in the Atlantic. Over in the Pacific, Tropical Storm Amanda continues to swirls in the middle of the eastern Pacific and poses no threat to land. There are also two potential areas of development off the west coast of Mexico to monitor over the next 7 days.

June 4

As expected, the first named storm of the Pacific Hurricane Season has formed. Tropical storm Amanda continues to swirl in the eastern Pacific Ocean with winds of 40 mph. The system is not expected to make landfall and is forecast to weaken to a tropical depression early next week. There's also two regions to watch for potential development off the west coast of Mexico. Meanwhile in the Atlantic, large plumes of Saharan dust keep the tropics quiet. No tropical development is expected over the next 7 days.

June 3

No tropical development is expected over the next 7 days across the Atlantic Basin, though we'll experience some heavy, tropical-like downpours at times this week and into the first weekend of June. Over in the Pacific Ocean, Tropical Depression One has formed and will likely strengthen into a tropical storm later today. This would become the first named storm of the season in the Pacific. There is also another area off the west coast of Mexico to watch over the next 7 days.

June 2

No tropical development is expected over the next 7 days across the Atlantic Basin. That being said, there is an area of deep tropical moisture over the Gulf that we're keeping an eye on. While the chance for any development remains low, the added moisture streaming this way should increase our rain chances into the weekend. Over in the Pacific Ocean, there are two areas of potential development over the next 7 days with the first named storm of the season possibly developing by the end of the week.

June 1

The 2026 Atlantic Hurricane Season has officially begun! Thankfully, there is no tropical development expected over the next 7 days, so officially we're off to a "quiet" start. That being said, there is an area of deep tropical moisture over the Gulf that we're keeping an eye on. While the chance for any development remains low, the added moisture streaming this way should increase our rain chances through the work week.

NOAA is forecasting a 55% chance of having a below average storm total this year due an El Nino pattern which typically brings higher wind shear and fewer storms in the Caribbean and Gulf, but that doesn't mean we are in the clear. In fact there are many cases of "below average" storm total years bringing devastating hurricanes to the United States. It only takes one, so as always, prepare for the worst and hope for the best. Now is a great time to make sure you have any hurricane preps and plans in order. It's never fun to think about hurricane season, but it's much easier to do now than it is when a storm is threatening.

May 26

The 2026 Atlantic Hurricane Season Outlook is here, and it hints at a potentially below-average season in terms of activity.

NOAA forecasters are predicting between eight to 14 named storms, three to six hurricanes, and one to three major hurricanes for the 2026 season. Each of these estimates is either at or slightly below the norm for each category.

So where do these numbers come from, and what could it mean for Texans? ABC13 Meteorologist Elyse Smith has more analysis and information on what this could mean for Houston.

The overarching reason for the strong signal pointing to a less active Atlantic hurricane season is the emerging El Niño in the Pacific. At the end of May, water temperatures in the equatorial Pacific Ocean are trending warmer than normal and could continue to warm into the summer months. This would signal that an El Niño has formed, and some long-range computer model guidance suggests this emerging El Niño could strengthen quickly and become a strong El Niño by later this year.

The importance of this phenomenon arriving at this time of year is that it can impact the jet stream over the United States, the Gulf, and the Caribbean. Typically, hurricane seasons with El Niño conditions have favored below-normal activity in the tropics due to wind shear. This is especially true for the Gulf and Caribbean. Wind shear can be a limiting factor in the formation and intensity of tropical storms.

So that's part of the equation. The other is to use historical references and comparisons with previous Atlantic hurricane seasons when similar conditions may have been present. These are called analog years. The analog years used to make the 2026 hurricane season prediction are 1997, 2006, 2009, 2015, and 2023. Each of these years had at least a moderate to strong El Niño during hurricane season, comparable to what could happen this year.

Of the five years, four had below-normal activity in the Atlantic during hurricane season, with some seasons even recording record-low activity. For example, 2006 was previously one of the least active seasons since the 1997 hurricane season. And 2015 was the third of three consecutive years with below-normal activity, too.

But the 2015 season should ring a bell to Houstonians, as that was also the season that brought Tropical Storm Bill to the region. Bill formed from a tropical wave that made it off the west coast of Africa and entered the Gulf. A passing trough then allowed for the system to organize, and in a little over a day, Bill made landfall along Matagorda Island on June 17, 2015, as a tropical storm. Bill brought a 3- to 4-foot storm surge to coastal areas, and its bands of heavy rain led to flash flooding across Southeast Texas. And yes, that was both during an El Niño year and what would end up being a "blow-normal" hurricane season.

The exception is the 2023 season, which is the fourth-most active on record in the Atlantic. The difference here, though, was that the El Niño was paired with record warm water that was already emerging in the deep tropics across the Atlantic. At this time, the waters in the deep tropics aren't warming as quickly as they were in 2023.

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