Matt Lanza

Jamaica takes a hit today from what has been a resilient Beryl, as its future track begins to come into focus (UPDATED)

July 3, 2024 at 7:14 amJuly 3, 2024 at 5:24 pm by Matt Lanza

(5:10 PM CT Update): Beryl continues to defy some logic and fight back hard against wind shear. Satellite presentation has improved a good bit over the last couple hours, and it’s tracking very close to the coast of Jamaica.

Beryl on satellite is coming dangerously close to a landfall on Jamaica. (Weathernerds.org)

Land interaction and continued wind shear should allow Beryl to weaken a bit more as it passes off to the west tonight. In general though, while Beryl’s central pressure has been gradually increasing, its winds seem to want to keep going. Model guidance did a couple things today with respect to Beryl going forward. There are no meaningful changes to track or impacts for the Yucatan, with a landfall near Tulum expected on Friday. Beyond the Yucatan, the models again adjusted back south (after a flirtation back north after our post this morning). Most European ensemble members and most tropical models favor a track south of South Padre Island, TX.

Model consensus shows a trend with older runs (lighter colors) farther north and newer runs (darker colors) farther south. (Brian Tang/SUNY Albany)

At this point, I would say that folks from Corpus Christi southward should continue to watch Beryl closely. North of there, we don’t currently expect any significant impacts at this time. Beryl is expected to weaken to a tropical storm over the Yucatan before restrengthening, albeit slowly, into a hurricane in the Bay of Campeche or southwest Gulf. More on this and the rainfall expected from Beryl for Texas as a whole tomorrow morning.

Headlines

Beryl will make a close pass to Jamaica later today as a major hurricane with surge, wind, and heavy rainfall.
Beryl is beginning to feel the effects of wind shear and slow, steady weakening is forecast as it comes west.
It is still likely to be a hurricane as it approaches the Yucatan on Friday, likely coming ashore south of Cancun and Cozumel.
Beryl should continue toward the northern Mexico or far south Texas coast as a tropical storm or lower-end hurricane this weekend.
Heavy rainfall is likely in Mexico and far South Texas as Beryl comes ashore and begins to slow down.

Hurricane Beryl (145 mph, WNW 20 mph)

Hurricane Beryl’s forecast as of Wednesday morning. (Tomer Burg)

Hurricane Beryl was a resilient storm through much of yesterday, as its core managed to resist some of the shear Beryl began experiencing. Alas, Beryl’s satellite presentation has degraded markedly this morning, with even the eye becoming filled with clouds.

Beryl appears to finally be feeling the wind shear that was expected to impact the storm as it moved into the western Caribbean. (Tropical Tidbits)

That said, its on a beeline for Jamaica as a major hurricane and conditions should begin to deteriorate through the day today. Significant surge and wind, in addition to heavy rainfall should arrive in Jamaica today and continue into tonight. Despite the satellite presentation degrading, that is still a nasty core of the hurricane heading to Jamaica. For the Cayman Islands, surge and wind, in addition to heavy rain arrive late tonight or tomorrow.

Total rainfall will be near or over a foot (300 mm) in eastern Jamaica, with widespread totals of 8 to 10 inches (200 to 250 mm) from the Caymans into Cozumel and the northeast Yucatan. (NOAA WPC)

As Beryl comes west, it is expected to maintain hurricane intensity as it approaches the Yucatan this weekend. The current forecast likely keeps the center of the storm south of Cancun and Cozumel, with a landfall likely near or south of Tulum. In recent days, the debate within modeling has been surrounding its intensity. A stronger storm was more likely to lift northwest toward the Houston area or Louisiana, while a weaker storm would stay farther south into Mexico or extreme south Texas. We seem to be approaching a mild consensus right now on that track. There are still a very, very small number of outliers bringing Beryl north of Matagorda Bay late this weekend. However, the vast majority of ensemble members and tropical models are now in decent agreement in bringing Beryl more on the southern half of the forecast envelope.

Track forecast consensus has started to increase a bit for late this weekend. As long as Beryl behaves as expected, there is moderate agreement that it will track between South Padre Island and Tampico, MX when it encounters the Gulf Coast. (Tomer Burg)

For information specific to Houston, check out the latest at Space City Weather. But it would appear that this comes in well south of the Houston area. It will be important to check back again later today or tomorrow morning just to ensure that remains the case.

The Yucatan will do a number on Beryl, but there may be a brief window for Beryl to regain strong tropical storm or hurricane status as it comes across the Bay of Campeche before coming ashore.

One interesting wrinkle with Beryl, regardless of its intensity as it comes ashore in the western Gulf will be how fast it slams on the brakes. Beryl has been plowing west all week around 20 mph give or take. When it gets to the Gulf Coast, the strong high pressure that had been steering Beryl will begin to weaken some but not dissipate completely. Meanwhile, the West will be enduring a long-duration heat wave with strong high pressure over California.

The upper pattern is slowly coming into focus Sunday with Beryl growing increasingly unlikely to be “captured” by troughing over the Upper Midwest or northern Plains. Beryl could slow to a crawl over northern Mexico or far south Texas. (Tropical Tidbits)

That could lead to steering currents weakening and forcing Beryl to slow down substantially or even stall out for a short time over Mexico or far South Texas. When the “s” word gets thrown around, I know some folks in Texas can panic, but I want to be clear. This isn’t a Harvey-redux. Even models that do show a stall keep rain totals far under that. That being said, this is a unique storm on its own and while rain would be extremely welcome in the Rio Grande and northern Mexico, too much rain can always cause issues. So we’ll watch trends in the coming days closely.

The current 7-day rainfall forecast through next Wednesday morning shows the potential for 5 inches of rain in far South Texas or northern Mexico. Higher amounts are likely in spots. (NOAA WPC)

Rain should transition to scattered thunderstorms into next week over Texas and Mexico.

Invest 96L

Beryl’s much less talented sibling is Invest 96L, which continues to follow in Beryl’s footsteps. It has plenty of thunderstorms with it, but it is being blasted by what is basically the “exhaust” from Beryl, which is keeping it completely disorganized.

While this will unfortunately deliver heavy rain to some of the storm ravaged Windward Islands today, it is unlikely to develop much beyond this over the next two to three days. Most modeling keeps it this way until the bitter end. The usual troublemakers (the GFS and Canadian models) try to make something of it, but I think that’s a very low likelihood scenario. That said, if the thunderstorm activity can be maintained as it tracks into Mexico, it could add a shot in the arm to any rainfall ongoing in that region or far South Texas next week, a scenario that’s plausible. We’ll keep an eye on things.

Beyond 96L, the tropics are expected to shut down for a little bit. Here’s hoping that’s the case.

Jamaica next in line as category 5 Hurricane Beryl plows across the Caribbean (UPDATED)

July 2, 2024 at 10:34 amJuly 2, 2024 at 5:41 pm by Matt Lanza

(5:30 PM CT update): Beryl is beginning to feel the shear as laid out in our post below, and it is now a category 4 storm with 155 mph winds. For folks in Jamaica, this offers modest comfort, as a major hurricane is going to make landfall (or come close) there tomorrow. Little has changed with respect to Jamaica and the Cayman Islands, so reference the post below on that.

I need to say some words to people in Houston. We are getting blasted by a few of you for apparently underselling the real threat from Beryl. If you read the post below, we’ve taken a very down the middle, neutral stance on the storm, explaining how it is still likely to pass to the south, though if it were to not weaken as much as forecast over the next 36 hours, it could come a bit farther to the north. We even went so far as to show the European ensemble models with the distribution of some closer to southeast Texas and others in Mexico, and we explained how this could be and what to watch for. I’m not quite sure what isn’t resonating with some people, but those are the facts. Here is a look at today’s most recent European ensemble members, 51 of them:

The spread of European ensemble members forecasting Beryl’s track continues to cast a wide net from Mexico to Texas. (Weathernerds.org)

Of the 51 members, 5 of them or 9.8 percent bring Beryl into the Houston area or Louisiana. This is down from 8 earlier this morning. If you would rather the GFS Ensemble, 4 of the ensemble members, or about 13 percent bring it to Texas or Louisiana, the same as earlier. Roughly one tropical model (the HWRF) brings Beryl to Houston. The HWRF historically would handle a weakening tropical system poorly, so I would be apt to discount it in my weighting as a meteorologist with a number of years of experience tracking and forecasting these things.

I write all this to say: No one is saying to ignore Beryl. But, look, those statistics of objective model data imply that the risk to Houston remains…pretty low! Should we continue to watch this? Absolutely! And I laid out the case of how this could become more problematic in Texas below. So, let’s just take a breath and watch what happens over the next 24 to 36 hours.

Headlines

Beryl remains a category 5 hurricane with 160 mph maximum sustained winds.
Beryl is expected to make a direct hit on Jamaica tomorrow as a major hurricane.
While Beryl is likely to weaken over the next 48 hours, it may not occur fast enough to drop under major hurricane intensity through Jamaica and possibly the Cayman Islands.
Heavy rainfall and flooding are likely along and north of Beryl’s path in the Caribbean.
Beryl’s forecast track remains dependent on a number of features as it comes west, but it has trended a little farther north today versus yesterday.

Hurricane Beryl (160 mph, WNW 22 mph)

Hurricane Beryl somehow managed to continue strengthening last night and achieved category 5 status late in the evening over the eastern Caribbean. It has maintained that status today and has 160 mph maximum sustained winds as it races west northwest across the Caribbean.

The forecast from the National Hurricane Center as of 11 AM AST shows Beryl closing in on Jamaica as a major hurricane tomorrow. (NOAA NHC)

Over the next 36 hours, Beryl will remain on a course that should bring it very, very close to a direct hit on Jamaica. At the least, it will be a close pass, and hurricane conditions are expected there beginning late tonight or tomorrow morning. Preparations for a major hurricane impact should be rushed to completion in Jamaica. Folks in the Cayman Islands will need to watch Beryl closely as well as it passes near or just south of there tomorrow night.

On satellite, Beryl looked great this morning, and while it still looks great, there are at least some signs that shear is beginning to impact Beryl a bit on the west side.

Hurricane Beryl looks the part on satellite this morning as it races west northwest. Some signs of wind shear are evident on the western side of Beryl, which should hopefully indicate Beryl has peaked. (Weathernerds.org)

You can see a more ragged appearance to the eye and eyewall, and even what looks to be a little dry air just outside the core in the western semicircle of Beryl. Whatever the case, the thought is that Beryl’s intensity has peaked, and it should now begin to undergo a steady decline. Beryl is about to plow into 20 or more knots of wind shear.

Beryl is about to encounter 20 kts or more of wind shear as it approaches Jamaica. (University of Wisconsin CIMSS)

Wind shear is complicated with storms of this intensity. Theoretically, it should just start to feel the shear and begin a steady, if not rapid weakening. Modeling says this will be the case. The majority of modeling weakens Beryl to a category 2 or weaker storm by Thursday morning. But in storms of this intensity, shear can be a little funky and find ways to help the storm “ventilate” somewhat. In my opinion, this is not going to be the case with Beryl; it should weaken as forecast, perhaps at a slower rate than what models suggest. However, there is inherent uncertainty here, and that’s why we would tell folks in Jamaica to prepare for a serious, major hurricane.

In addition to the wind and surge impacts of a major hurricane, flooding from rainfall is a possibility, if not likelihood as Beryl passes southern Hispaniola and Jamaica.

Beryl is expected to drop as much as 200 to 300 mm (8-12 inches) of rainfall along and just north of its track. (NOAA WPC)

According to Sam Lillo of DTN weather, who has been posting frequent statistical nuggets on Twitter/X regarding Beryl’s unprecedented nature about Beryl’s forward speed. Over a 6 hour period, Beryl is the fastest known moving category 5 storm on record. As noted by him and some others, Hurricane Allen in 1980 and Janet in 1955 also had some extreme forward speeds for category 5 storms. Either way, Beryl will end up atop or near the top of many charts once all is said and done for earliest and easternmost and fastest for storms of this intensity.

What comes after Jamaica for Beryl?

The main near term concern is for the folks in Jamaica and the Caymans. Beyond that, the forecast is contingent on a number of factors. Over the last 48 hours, we’ve seen a slight northward shift in Beryl’s forecast track as it comes west.

Beryl’s forecast track via the ensemble mean of all models has trended a bit to the north in the last couple days, not by a ton but by enough to be notable. (Tomer Burg)

This has implications for the Yucatan and perhaps the Gulf as well. Why is Beryl trending more north? For one, exploding into a category 5 storm allows it to gain some added latitude. But secondly, the U.S. pattern has changed somewhat. If you look at how the European ensemble’s 6 to 10 day forecast has changed in the last 48 hours, the tendency has been for the trough over the Central U.S. to strengthen, thus weakening the ridge of high pressure in the South.

Over the last 2 days, the European ensemble model has weakened the southern ridge and strengthened the Central trough, which has allowed Beryl’s risk of coming farther north to increase. (StormVista)

But there’s a lot of nuance to this. For one, if Beryl does weaken as expected, this would have only a modest impact on the final track, keeping it south across the Yucatan and into Mexico. If Beryl does stay stronger than forecast or somehow intensifies as it comes west into the Gulf, it would be more apt to “feel” the stronger trough and come north. You can see this on the Euro ensemble where stronger outcomes are mostly skewed north and weaker outcomes are mostly skewed south.

There is a bit of a bimodal dispersion of Euro outcomes, with stronger ones mostly northward and weaker ones mostly southward. (Weathernerds.org)

There’s a reason we have been apt to not speculate on what would happen to Beryl as it came west, rather trying to focus on what would impact Beryl. These changes offer a wrinkle. Should you worry on the Texas or Louisiana coasts? No, but you’ll want to keep an eye on this. For one, there seems to be a fair bit of support for somewhat hostile upper air conditions in the Gulf when Beryl arrives, so there’s no guarantee this will just explode when it gets there.

That said, we’re operating in a very odd world right now. Gulf of Mexico water temps have drifted under record levels thankfully, but it’s still warmer than normal overall. So I don’t want to overpromise anything at this point. The best we can tell people to do is continue watching. If Beryl makes it to the northern Mexico, Texas, or Louisiana coasts, the impacts would probably begin late Saturday night or Sunday.

One other quick word: A lot of people will be traveling this weekend to beaches and such. Rip current risk in the Gulf is going to increase later in the weekend as some of the swells from Beryl reach the coast.

Rip currents will become an issue on most of the Gulf Coast by later in the holiday weekend. (NWS Mobile/Pensacola)

Please use caution if you’ll be on the beach this weekend. Even the best and most experienced swimmers can struggle with rip currents, so it’s advised to swim near a lifeguard and follow any warnings or caution notices.

Beryl closing in on the Windward Islands as a strengthening major hurricane (UPDATED)

July 1, 2024 at 7:38 amJuly 1, 2024 at 3:18 pm by Matt Lanza

3 PM CT Monday Update

Beryl made a quick landfall this morning on the island of Carriacou just north of Grenada as a category 4 hurricane with 150 mph winds. Beryl remains a beast of a storm, albeit relatively compact in the Caribbean. It will mostly avoid land now for a bit.

A historic storm for the southeast Caribbean, Beryl remains near maximum intensity as it moves west northwest away from the Windward Islands. (Weathernerds.org)

Beryl will track mostly west northwest the next couple days, and it will likely encounter a good deal of wind shear after tomorrow morning, allowing it to begin weakening as it moves toward Jamaica. We continue to believe it will pass south of Jamaica. There remains a good deal of uncertainty beyond the end of the week in terms of where Beryl goes and whether or not it can track northwest enough to get into the Gulf. That remains a low likelihood scenario, and most tropical models agree that Beryl will be disheveled enough to be bullied by high pressure over the Southeast and Gulf to be forced toward Mexico or extremely far south Texas. We’ll continue watching trends, but Beryl’s forecast for the weekend is not much clearer this afternoon than it was this morning.

The morning post follows:

Headlines

Beryl will make a direct hit across the Windward Islands today, very near Grenada or the Grenadines with impacts beyond there.
Beryl is reintensifying after undergoing an eyewall replacement cycle overnight.
Beryl will track west northwest across the Caribbean, eventually encountering some wind shear that should weaken it a good bit before it passes south of Jamaica.
Uncertainty remains high on the ultimate track of Beryl beyond the Caribbean, but modeling has made a fairly southward shift since yesterday, keeping most impacts near Mexico. It still bears close watching.
TD 3 became Chris overnight and is now inland with heavy rain over Mexico, while Invest 96L (unlike Beryl) will take a slow and steady approach to organization over the course of this week.

Hurricane Beryl: 130 mph, moving west northwest at 20 mph

Hurricane Beryl has just undergone what we call an eyewall replacement cycle (ERC). You can read about the nuts and bolts of it here, but in a nutshell, this is where a hurricane basically takes a moment to reorganize itself and expand in size. As a result, Beryl’s wind field has increased with hurricane-force winds now out about 35 miles from the center and tropical storm force winds out 125 miles from the center. Beryl remains relatively compact, but it has grown somewhat.

Hurricane Beryl came out of an eyewall replacement cycle this morning and is unfortunately reintensifying at the worst possible time for the Windward Islands. (Weathernerds.org)

Unfortunately, since Beryl is wrapping up an ERC, this means it will have an opportunity now to restrengthen. Winds were down to 120 mph as of early this morning from its peak around 130 mph yesterday, but we may see those increase once more. (Editor’s note: They have increased to 130 mph again as of the 8 AM AST advisory)

Whatever the specifics are, it’s pretty clear that a major hurricane is going to directly impact the Windward Islands today, with the worst impacts coming near Grenada and the Grenadines, south of St. Vincent.

Hurricane Beryl’s 5 AM forecast from the National Hurricane Center shows a turn more north of due west is expected, bringing it near or just south of Jamaica by later Wednesday or Thursday. (Tomer Burg)

Total rainfall from Beryl will be heavy, but because it is booking it west, the rain totals will generally be 10 inches or less. Surge and wind will be major problems with rainfall a secondary hazard in this case.

Once through the Windward Islands, the next land mass to watch for potential impacts will be Jamaica. While Beryl is likely to pass south of the island Wednesday night or Thursday, avoiding a direct hit, it will be close enough to deliver wind, rain, and surge to Jamaica, and it’s just a question of how much. Notably, Beryl is expected to weaken after tomorrow morning. It will begin to encounter a good bit of wind shear in the central and western Caribbean. The official forecast keeps Beryl a category 2 storm all the way to the Yucatan, but model guidance is actually a little more aggressive in weakening Beryl to perhaps even a tropical storm. While no one should be sleeping on Beryl, this is very likely to be a much different storm in 2 days than it is right now.

For those of you with plans in Jamaica or the Caymans or the Yucatan and Belize, we can’t tell you what to do. Just continue to monitor Beryl’s progress and reach out to your hotel or resort for more guidance.

After day 3, the weather pattern will support Beryl continuing west around the base of high pressure centered over the Southeast or northern Gulf of Mexico.

Beryl should be south of Jamaica Wednesday night, continuing to be steered west or west northwest around the base of high pressure over the Southeast and Gulf. (Tropical Tidbits)

The question will be how long this high stays in tact. The high is expected to weaken by Friday or Saturday. At that point, Beryl should be near or over the Yucatan. The uncertainty then lies in whether Beryl has enough left to it after encountering shear and land to determine if it continues west northwest or shifts more northwest. There is actually decent tropical model agreement that it will continue west northwest, which is close to the official forecast as shown above. A handful of other models suggest it will turn northwesterly toward northern Mexico or Texas.

Modeling is actually in rather good agreement that Beryl will cross the Yucatan and emerge in the far southern Bay of Campeche before perhaps turning more northwesterly. (Tomer Burg)

From the track density plot above, you can see that Beryl is expected with high confidence to pass just south of Jamaica and the Caymans before approaching the Yucatan or Belize. Confidence diminishes from there with some models dissipating Beryl and others continuing it across the Bay of Campeche toward Mexico or far south Texas. Again, keep in mind that this will be a much different storm then than it is today, and it will probably need some time to organize itself after reaching land in the Yucatan. Its forward speed is such that it will likely have a limited amount of time to get itself back together as it approaches the coast. Folks in Mexico and Texas should continue to watch Beryl’s progress, but at this point, it’s too soon to get more specific than that.

Stay tuned for more on this, but in the meantime, our thoughts are with the Windward Islands today.

The rest of the crew

Tropical Depression 3 became Tropical Storm Chris overnight and is now inland and once more a depression. It is a heavy rainmaker for Mexico.

Total rainfall from Chris will be on the order of 300 mm (12 inches) or more locally in parts of Mexico, with widespread 100 to 200 mm (4 to 8 inch) totals. (NOAA NHC)

Behind Beryl, we continue to track Invest 96L. Models support a slow, gradual intensification of 96L as it essentially follows Beryl’s wake. Slightly cooler water will likely aid in that slower pace of growth. The National Hurricane Center is holding around a 60 percent chance of development with 96L, but it’s far too soon to speculate on exactly where it goes, short of it will follow close to Beryl’s track. What we’re more confident in is that slower pace of intensification.

Invest 96L has about a 60 percent chance of developing over the next week or so as it comes west. It will follow very close to Beryl’s track and likely intensify at a much slower pace than Beryl did. (NOAA NHC)

Some good news: Once 96L exits the picture, we are expecting the Atlantic to settle down into a bit of a July lull (or so we hope). But model guidance keeps any real hint of anything absent in the Atlantic, Caribbean, or Gulf beyond 96L right now. Fingers crossed so we can catch our breath before August.

Beryl is on its way to hurricane intensity as it moves toward the Windward Islands

June 29, 2024 at 9:19 amJune 29, 2024 at 9:19 am by Matt Lanza

Headlines

Beryl is expected to become a hurricane as it moves into the Windward Islands Sunday night and Monday.
Beryl has the potential to become a major hurricane as it moves into the Caribbean, feasting on water more typical of August or September than June or July.
Hurricane impacts are likely for Barbados and the islands south of Martinique.
Interests in Jamaica, southern Hispaniola, and the rest of the western Caribbean should monitor Beryl’s progress closely.
It is simply too soon to say anything coherently about the U.S. Gulf Coast or Mexico impacts from Beryl, if any at all.
Invest 94L will bring heavy rain to Mexico, while a wave behind Beryl has a 60 percent chance of slowly developing next week.

Tropical Storm Beryl

As expected, Invest 95L became a depression and is now Tropical Storm Beryl. It is expected to become a hurricane as it moves through the Windward Islands and into the Caribbean by Monday. From there, confidence in track decreases a good bit and interests in the western Caribbean, including Jamaica should monitor Beryl’s progress over the next few days.

Beryl’s intensity

A look at Beryl on satellite this morning shows a rather robust system that’s working hard to get organized.

Tropical Storm Beryl on satellite shows signs of becoming better organized, though it is still fending off some dry air and wind shear. (Weathernerds.org)

The center is still skewed to the eastern half of the thunderstorm activity, meaning it’s not quite *well* organized yet. But it’s trending in that direction. Look for Beryl to become a more buttoned up tropical storm later today.

From here, we have almost unanimous model agreement that Beryl will strengthen as it comes west toward the Windward Islands. It arrives in about 48 hours, and the model probabilities of strong intensification are extremely high. Right now SHIPS guidance, which we use as a guide for potential rapid intensification is running anywhere from 5 to 13 times higher than climatology over various periods and intensities. The National Hurricane Center describes Beryl’s environment as “abnormally favorable” for intensification. This is precisely what we were concerned about coming into this hurricane season, as water temperatures in the Atlantic Main Development Region are at record levels. They’re at records in the Caribbean too. Beryl is in an environment that’s more August than June.

Water temperatures in the Atlantic MDR where Beryl is located are near or above last year’s record levels and are more typical of September than June. (University of Arizona/Kim Wood)

The official NHC forecast brings Beryl to higher end Category 2 intensity by the time it cuts across the Windward Islands and into the Caribbean, and there is legitimate risk that this forecast is too conservative. A major hurricane may be possible near Barbados or as Beryl inches into the Caribbean. If you’re wondering, only 13 Category 2 or stronger hurricanes have passed within 100 nautical miles of Barbados historically, all of which have occurred in August or later. We’re in uncharted territory.

As Beryl works into the Caribbean, it will hit a bit of a crossroads. If the storm really intensifies beyond forecasts, it could be drawn north closer to Jamaica or Cuba and run into land issues that weaken the storm. If Beryl is impacted by wind shear, as is often the story in the Caribbean, it will likely stabilize or even weaken some as it comes west. That is what is explicitly shown in the NHC forecast, with Beryl dropping to category 1 intensity again by Wednesday night.

All that said, I would not necessarily be counting on Beryl to weaken at this point, and as the NHC even notes, people should not be focused on the specific intensity numbers. The near term concern is folks in the Windward Islands preparing for a borderline major hurricane impact, while folks downstream in Jamaica or the Caymans or even Hispaniola should monitor Beryl’s progress closely.

Beryl’s track

As noted above, a lot of Beryl’s track may depend on its intensity, with a stronger storm “feeling” troughing near Bermuda and being tugged northward, while a weaker or more disorganized storm may track more westerly or west-northwesterly across the Caribbean.

The map above shows the probability of Beryl’s track being within 150 km of a given point. You can see that model agreement is extremely strong as Beryl passes the Windward Islands. Once it gets into the Caribbean, confidence diminishes a good bit until it drops to low confidence in the western Caribbean. But I think it’s obvious that tracks toward southern Hispaniola, Jamaica, and elsewhere are very much on the table, and the current forecast cone from the NHC captures this very well.

For folks on the U.S. Gulf Coast or in Mexico and the Yucatan, it’s simply too soon to really say a lot about this. There’s no real signal in the noise that we can meaningfully derive from the current model guidance. Yes, it seems a track to the south of the Gulf is generally favored right now, but there is a high degree of uncertainty beyond day 5 on where this goes, in addition to the uncertainty on its intensity. Keep monitoring for now, but we’re still a few days from being able to say something coherently.

Beryl’s impacts

For the Windward Islands, Beryl clearly looks as if it will be a noteworthy storm in terms of wind speed, with again only 13 previous category 2 or stronger storms in that region since the 1800s. A hurricane watch is posted for Barbados, and additional watches or warnings will be handed out later today.

A look at the HWRF model as it moves into the Windward Islands (don’t focus on specifics here) shows a relatively compact storm.

Beryl’s hurricane force winds will be relatively compact, but the tropical storm force winds will likely impact Grenada northward to Martinique. These areas should all be preparing for a hurricane impact, in case the track shifts one way or another. (Tropical Tidbits)

Hurricane-force winds are not forecast to extend out terribly far from the center, but tropical storm-force winds (damaging winds) would be implied to extend from Martinique south toward probably Grenada. With that said, any shift in track could easily change the outcome on a given island. So basically, the Windward Islands should all be preparing for a hurricane impact.

Beryl will also produce heavy rainfall on its path.

Total rainfall from Beryl is expected to peak around 6 to 8 inches (150-200 mm) near the center of its track through the islands. Uncertainty increases in Beryl’s rain totals for Hispaniola and Jamaica as it tracks west, given the uncertainty on track and intensity specifics. (NOAA WPC)

Rain totals should peak near Barbados, St. Vincent, or St. Lucia with about 6 to 8 inches total. Higher amounts are possible. Flooding and mudslides will be a concern but perhaps mitigated somewhat by Beryl’s forward speed. Waves and rough seas will also be an obvious issue with Beryl as it moves into the Caribbean.

Bottom line on Beryl: A storm more typical of August or later will impact the Windward Islands by Monday, and those regions should prepare for hurricane impacts. Areas in the rest of the central or western Caribbean should monitor Beryl’s progress closely in the coming days.

Other systems of note

Invest 94L flared up yesterday in the northwest Caribbean. It’s currently over land, but it will have a brief window to perhaps make a go at organization before moving inland in Mexico early next week. Heavy rain and flooding are the main concerns with this.

We’ll continue to watch the wave behind Beryl, which now has a 60 percent chance of developing into a tropical system next week. In DJ Khaled parlance, another one.

There’s another wave behind Beryl that is increasingly likely to develop next week. It would likely follow Beryl into the Caribbean, but current modeling is less excited about how strong this gets. (NOAA NHC)

This wave will likely follow Beryl into the Caribbean, though currently the models suggest it will have less upside than Beryl in terms of intensity. Thus, one might expect this stays in the southern Caribbean tracking west or west-northwest. Still, we’re several days out, so we’ll keep monitoring.