This Weather Patterns Are Suddenly SHIFTING… And Meteorologists VERY Concerning

Added: 2026-05-27

[00:00:00]We are at a genuinely pivotal moment in the weather pattern right now. A major transition is underway, and what comes out the other side of it over the next 7 to 10 days has some serious implications for the Gulf Coast, the Southeast, and potentially even the tropics as we move into the official opening week of hurricane season. The flooding threat across the South remains very real and ongoing today, but the bigger story is what happens after this current pattern wraps up and the atmosphere reshuffles into something that opens the door for tropical moisture to push northward into the Gulf. There's a lot to unpack here, so let's get right into it. First, let's set the stage with where we are right now. The pattern that has dominated the Southern United States for the past 2 plus weeks, that relentless subtropical jet stream pumping Gulf moisture northward and producing round after round of heavy rainfall from Texas through the Southeast, is in its final stages. The flooding risk remains elevated today and through the rest of this week across the South Central States and Deep South. Texas, Oklahoma, Arkansas, Louisiana, Mississippi, and the broader Southeast are still under that rainfall threat. And with soils already saturated from weeks of repeated heavy rain events, even moderate additional rainfall is enough to produce flash flooding in vulnerable areas.

[00:01:15]There are already marginal to slight risks for excessive rainfall in place across parts of that corridor, and those risks are not going away overnight. Out across the Pacific Northwest, a storm system is bringing 1 to 2 inches of rainfall to Oregon, Idaho, and Western Montana this week. A relatively modest, but still welcome signal for a region that has been desperately dry all spring. It's not a pattern busting event for the drought out there, but it's at least something. Now, let's talk about the transition, because this is the critical part of the forecast. By the way, if you'd like specific weather forecasts for your region or city, please leave them in the comments. I'll answer them individually as time allows.

[00:01:55]Also, if you like the video and subscribe to my channel, you'd be very grateful. Now, let's move on. What's happening atmospherically over the next several days is essentially an omega block pattern setting up across North America. A configuration where high pressure builds in the center of the continent with troughs on either side, creating a relatively stable blocked pattern for a brief period. During the omega block phase, severe weather activity quiets down considerably. If you've been seeing people on social media claiming there are major severe weather outbreaks on the horizon for this week, that's not what the data shows. The block suppresses the kind of dynamic forcing needed for organized severe weather. What you get instead is the continuation of the rainfall pattern across the south underneath the block with things staying relatively quiet elsewhere. But, here's where the forecast gets interesting and where I need you to pay attention closely. After the omega block breaks down, the high pressure that's been sitting over the continent shifts eastward into the Atlantic. And when that happens, it leaves the Gulf of Mexico wide open.

[00:02:56]That eastward migration of the ridge is the key transition I've been watching because it removes the blocking pattern that's been keeping Gulf moisture somewhat corralled, and it opens a pathway for tropical moisture and potentially tropical development to push northward into the Gulf. That transition window looks to occur right around the end of May into the first week of June.

[00:03:17]And both the American GFS and European models are picking up on the potential for something to develop in that time frame, though they disagree on the details. And I want to be transparent about both the signal and the uncertainty. Let me walk through what each model is showing because the difference between them matters a lot here. The GFS model has been persistently, almost stubbornly, showing a tropical depression or potentially even a named tropical storm forming near the Florida Keys or off the southeast coast as we move through this weekend and into early next week. In the GFS scenario, this system would bring some gusty winds to the Florida Keys, Southern Florida, the Bahamas, and then track northeastward toward Bermuda, where it could potentially intensify to near tropical storm strength with wind gusts approaching 70 to even 80 mph.

[00:04:05]This is the more aggressive scenario.

[00:04:07]The European model, which has been more accurate than the GFS in tracking this tropical moisture recently, is showing something considerably weaker, either a very disorganized low-end system or nothing organized at all. The European solution takes the moisture more toward the Gulf before eventually transitioning it toward the Eastern Pacific. It's a less alarming, but still attention-worthy scenario, particularly for the Gulf Coast states. The National Hurricane Center, as of the latest update, is not flagging any development expected in the next 7 days. That is the official word, and it's worth noting.

[00:04:42]But, both major ensemble systems, the GFS and European ensembles, are still showing some probability of development in the window just beyond that 7-day horizon. And, the overall tropical moisture environment is going to be highly favorable as the ridge shifts east. Here is how I want you to think about this. The formation probability right now is genuinely low. The Saharan dust plumes moving through the Atlantic are still providing some suppression.

[00:05:07]The cold front that will push southward as the block breaks down could create wind shear that tears apart any developing circulation before it can organize. And, the European model, which has been the more reliable guide recently, is not showing a significant tropical threat. All of those are reasons not to panic, but here are the reasons to stay alert and not dismiss this entirely. The sea surface temperatures in the Gulf of Mexico are running well above average for late May.

[00:05:34]The subtropical jet is actively feeding moisture into the region. The ridging pattern transitioning eastward opens the Gulf in a way that allows tropical features to develop and push northward with less inhibition. And, both major ensemble systems are detecting something in this time frame, even if they disagree on the details. In the tropics, the gap between something very weak and disorganized and something that rapidly intensifies over warm Gulf waters can close very quickly under the right conditions. The area that needs to be most alert right now, based on both model solutions, is actually Bermuda, particularly if the GFS scenario of a northeastward tracking system verifies.

[00:06:13]The European model's less aggressive solution would bring heavier rainfall to the Florida Keys and Southern Florida this weekend into early Sunday with some gusty winds possible on the eastern side of any developing low pressure. Nothing catastrophic in that scenario, but worth having your weather app ready if you're in South Florida or the Bahamas this weekend. For the Gulf Coast and Southeast, the transition from the current rainfall pattern toward something more Gulf-focused over the following week means you should not think the flooding threat is over once this current batch of rain wraps up.

[00:06:44]Heavy rainfall from whatever tropical moisture funnels northward through the Gulf transition is going to keep the South active well into early June. The flooding concerns are not a one-week story. They're going to be a persistent feature of the weather pattern through at least the first week of June. Let me now zoom out and give you the bigger picture for early June and beyond because the atmospheric story we're living through right now is genuinely historic in its scope. The subtropical jet stream, energized and sustained by the developing El Niño, has been the dominant driver of United States weather for the better part of the last 3 weeks.

[00:07:18]What we've witnessed across the South and South Central states in that time is one of the most dramatic precipitation turnarounds in recent memory. Louisiana was in exceptional drought a month ago.

[00:07:29]Parts of Texas were in extreme drought.

[00:07:31]These areas have now received extraordinary amounts of rainfall, in some cases enough to completely erase months of precipitation deficits in a matter of weeks. The flip from drought to flood in such a short period is jarring, and it's exactly the kind of extreme pattern swing that El Nino drives. As we move through early June, that subtropical jet remains active, but gradually starts sharing influence with other atmospheric players. The polar jet, which has been pushed well into Canada, starts to wobble back southward slightly as we get into mid-June, setting up the pattern transition I've discussed in previous forecasts toward northwest flow and derecho potential across the upper Midwest and Great Lakes around Father's Day weekend. The monsoon flow from Mexico begins pushing northward into New Mexico, Colorado, and Arizona, potentially ahead of schedule, which will start chipping away at the drought in those states as summer progresses. The Pacific Northwest and Northern California, unfortunately, don't see meaningful relief in this pattern through mid-June. The high pressure over the western US keeps those areas dry and increasingly warm, which means wildfire risk is going to escalate as summer heat builds across a landscape that's been drying out all spring. And then the bigger question looming over all of this, what does the Atlantic hurricane season look like as El Nino strengthens toward its projected peak in fall and winter? Colorado State University is forecasting a slightly below average season with around six named storms and two major hurricanes.

[00:08:59]El Nino's wind shear effect on the Atlantic main development region will be significant by August and September, but the Gulf of Mexico and western Caribbean, as we're seeing right now, operate somewhat independently of that main development region, and warm Gulf SSTs combined with a favorable ridge configuration can produce dangerous storms even in El Nino years. History has taught us that lesson repeatedly.

[00:09:24]Here is your bottom line for the rest of this week and the days ahead. Today through Friday, the flooding threat remains elevated across Texas, Louisiana, Arkansas, Mississippi, and the Southeast. Additional rainfall on already saturated soils will continue producing flash flooding. Do not drive through flooded roadways. The Omega block pattern keeps severe weather quiet for now. This weekend, watch for a potential low pressure development near the Florida Keys or off the Southeast coast, most likely Saturday evening into Sunday. Gusty winds possible for South Florida and the northern Bahamas in this scenario. Nothing catastrophic, but worth watching closely. Bermuda should stay alert for a possible system tracking in their direction early next week if the GFS solution verifies. After this weekend, the pattern transitions with high pressure shifting into the Atlantic, the Gulf opens up, and tropical moisture funnels northward.

[00:10:14]Additional heavy rainfall comes for the Gulf Coast and Southeast regardless of whether anything tropical develops. The flooding concern persists. First week of June, the subtropical jet stays active, low pressure features try to develop in the Gulf and off the Southeast coast, and above normal precipitation continues across the South. The monsoon begins waking up across the Southwest, and we'll be watching closely for any Gulf tropical development as that warm water and favorable ridge alignment provides an increasingly welcoming environment.

[00:10:45]It has been an extraordinary May by any measure. Historic severe weather outbreaks, record rainfall, dramatic drought reversals, a confirmed El Niño arrival, and now the transition into hurricane season with tropical moisture already stirring in the background. June is shaping up to be every bit as dynamic and consequential as May was. We'll be here every day tracking all of it, the floods, the tropics, the pattern transitions, and everything in between.

[00:11:12]Stay safe through this Memorial Day week, keep watching those flood alerts if you're in the South, and we'll see you in the next update.