Signs of change for 2016?

After a couple of false starts in recent years, a strong El Niño finally developed and is now firmly entrenched across a good portion of the equatorial tropical Pacific.

El Nino at its peak in the tropical Pacific

El Nino at its peak in the tropical Pacific

This El Niño event has led to a substantial increase in Northern Hemisphere tropical cyclone activity, mainly in the Pacific (obviously), increased storms for parts of western North America with more to come in the weeks ahead and a fairly wet pattern overall for much of the South and Southeast U.S.

The outlook from the various groups who monitor El Niño calls for a gradual weakening of this warm event  as we move in to 2016. In fact, there is some evidence in the long range climate models that perhaps a cooling phase of what is called ENSO (El Niño Southern Ocscillation) is in store by 2017, if not sooner.

Once past the winter and the influence of the current El Niño, things begin to look very interesting for next hurricane season for the Atlantic.

One glaring consequence of this year’s El Niño was the record level of wind shear across much of the Caribbean Sea. Strong upward motion in the tropical Pacific resulted in strong wind between about 5,000 feet and 40,000 feet across the western Caribbean and extending as far east as the Lesser Antilles at times. This is what caused would-be hurricanes such as Erika to weaken and ultimately dissipate. Only a narrow band of favorable conditions existed in the deep tropics where we saw hurricanes Danny and Fred form, far away from land areas.

Outside of the extreme upper level winds, in the southwest Atlantic, there was another area of favorable conditions and the resulting hurricanes Joaquin and Kate owe their existence to that fact. Otherwise, El Niño really did help kill off the Atlantic season as far as direct impact on the United States was concerned.

2016 might not have that protection and in fact, there is a good chance of that happening, according to the latest projections from a suite of computer models.

CPC/IRI Consensus Probabilistic ENSO Forecast

CPC/IRI Consensus Probabilistic ENSO Forecast

As of the December 10th update from the CPC/IRI (Climate Prediction Center/International Research Institute), the probability of El Niño conditions holding on through March 2016 are near 100%. After that time, things change quickly.

Once we get to spring, El Niño begins to fade as cooler water moves in from the subsurface and stronger trade winds resume across the tropical Pacific. This is reflected in the projections with the probability of El Niño conditions dropping to 60% by late spring.

Moving further out in time, the various models suggest only a 20% probability of El Niño holding on by mid to late summer 2016. This has huge implications on the Atlantic hurricane season since the absence of El Niño by itself is typically a positive signal for Atlantic tropical cyclone activity.

As we know all too well, there are many other factors at play and the Atlantic Basin seems to have the most year to year variability and is subject to large errors in forecasts for seasonal activity – 2013 being a prime example. There was no El Niño that year and it appeared that conditions would be favorable for one of the busiest seasons since 2005. Other unforeseen factors set in by summer and the season was one of the most tranquil in recent memory.

SST anomaly forecast going out to July 2016. Notice the blue showing up in the tropical Pacific - that is the beginning of La Nina conditions there

SST anomaly forecast going out to July 2016. Notice the blue showing up in the tropical Pacific – that is the beginning of La Nina conditions there

While the El Niño fades, another interesting phenomenon may begin to take shape. Some of the climate models are developing a very warm tropical Atlantic next year. If this comes to pass, especially if the far northern Atlantic is cool compared to average, then it would signal yet another reason to believe that changes are ahead for Atlantic activity next season.

Much of this was reflected in Dr. Phil Klotzbach’s first outlook for the 2016 hurricane season which was released last week. The December discussion indicates a 25% chance of seeing a hyper-active season in 2016 which would be a significant change in what we’ve seen in recent years. A lot will depend on exactly how much the El Niño weakens and how warm the tropical Atlantic manages to get before August-September-October rolls around.

Trying to put this all in to perspective, it is kind of like having a the #1 recruiting class in college basketball. Your team is loaded with incoming talent, maybe a couple of seniors with terrific skills to round things out. It appears that the next basketball season is going to be spectacular for your team. They might even have a chance to win it all and be National Champions. Along the way, things can happen: a torn ACL for your star forward. Coach gets sick during tournament play. Another player goes down with a broken hand. All of a sudden, your #1 team is now losing game after game and what looked like a sure-thing season turns out to be anything but. You just never know.

Hurricane season is much the same. It really is. There can be a plethora of signals for the Atlantic Basin to be very active and yet, when all is said and done, it wasn’t and no one really knows why until after the fact. Right now we are in the equivalent of the signing period of college basketball – when the top recruits begin to choose their college. We won’t know how things pan out until much later – maybe even during the season itself. Yet, much like college ball, I see potential building for a busy 2016 in the Atlantic. However, just because something might happen, doesn’t mean that it has to happen.

I’ll post an update to this blog in mid-January. By then, we will have even more data from the various climate models and the picture of what lies ahead will become just a little bit clearer.

M. Sudduth 10:15 AM ET Dec 14

When there are no hurricanes, plan for when there are

Once again, the United States escapes hurricane season without a significant hurricane, or any hurricane, making landfall. This should come as no surprise since the season was forecast to be rather tranquil and, for the most part, it has been. Of course, two exceptions stick out: Dominica and parts of the Bahamas. Those two areas had anything but a “quiet” hurricane season. Otherwise, as far as the U.S. is concerned, the season came and went without too much to worry about.

We used this past season to continue to test new technology, especially our live remote camera system. Despite the quiet season for the U.S., I have been very busy. Doing what? Getting ready for when there are hurricanes once again knocking on the door.

Mike Watkins assisting Mark Sudduth to deploy the

Mike Watkins assisting Mark Sudduth to deploy the “old” camera system as hurricane Isaac approached Louisiana in 2012. This is along the 17th Street Canal in New Orleans.

It was ten years ago that we developed our unmanned cameras for deployment in even the most intense hurricane conditions. Back then and up until this year, the technology was bulky, heavy and had several points of potential failure. It worked more times than not and we captured some extraordinary video using the old tech, all while keeping us away from the worst of the conditions and perhaps just as important, allowing us to be in several places at once.

Fast-forward ten years…

The available technology has come so far that our new cameras are tiny, the entire set up weighs less than 6 pounds and I can even airline three of them to anywhere I need to at very little cost. The video quality is superb and we now have audio, something that we had wanted since day-1 but always struggled with how to do it. Problem solved.

Our new generation of unmanned cameras wieghs only 6 pounds, will run for 36 hours, has superb video and audio quality and costs 1/3 less than what we had been using. Here is one being set up on Long Island during a powerful winter storm last January

Our new generation of unmanned cameras weighs only 6 pounds, will run for 36 hours, has superb video and audio quality and costs 1/3 less than what we had been using. Here is one being set up on Long Island during a powerful winter storm last January

We also solved the problem of how long the cameras would run. The first generation relied on a huge AGM battery that had to power a laptop, a VCR and the camera. We would get 18 hours if we were lucky and ALWAYS had to go retrieve the cases in order to save anything for archival purposes. Today, everything is saved automatically in 3-hour increments on “the cloud” so even if the cameras are lost, stolen or otherwise destroyed, we have everything saved no matter what.

Utilizing the very latest in USB power technology, the cameras operate for 36 hours now. This will come in extremely handy during a major hurricane and storm surge event that requires us to set up well ahead of the wind and rain. Not only does the new technology keep us even safer, but the run time will allow us to capture, and stream live, the entire event, not just a section of it.

I first tested the new cams this past winter in New York and Massachusetts during a pair of blizzards that struck the region in late January and mid-February. I took three with me each time and set them out across a fairly wide swath. The best results came during the Valentines Day blizzard in February along Cape Cod. See for yourself in the time lapse video that I produced from the live stream archive:

After two successful field tests last winter, it was obvious that the new technology was going to work and would be the basis for our future field missions. In fact, the ridiculous amounts of snow in the Boston area, accompanied many times by photos on social media of people using yard sticks to measure the depth, gave me another idea.

It is one thing to have live video of storm surge sweeping in across the coast. How about showing how high the water is rising? Many cities have flood gauges at low water crossings to indicate how high the water has risen during flash flood events. Why not do this for storm surge? Since we will have live cameras out there, might as well have a method of showing how high the water is in fact rising.

Photo of the "measuring tape" that we developed to show how high the water is rising on our live camera feeds

Photo of the “measuring tape” that we developed to show how high the water is rising on our live camera feeds

I turned to my friends at the local Fast Signs store and once again, problem solved. Using high-quality outdoor banner material, I created what is best described as an over sized tape measure. It is 8 inches wide by 10 to 25 feet high. The idea is to set one up in the view of the camera and as the water rises, we can all see just how high it is above the local ground level.

I took the new cameras along with the giant tape measure to the National Hurricane Center in July for a presentation. Considering all of the innovative storm surge products that are coming out, I thought that this new generation of camera, coupled with the ability to show the storm surge height in real-time, would be extremely beneficial to the forecasters and scientists. They were already familiar with results from previous storm surge events from our old camera system; the response to what I have now was overwhelming. So much potential exists for utilizing this new way of showing a hurricane’s most lethal weapon as it’s happening.

Obviously, the 2015 season did not look to be very threatening to U.S. interests. Erika and Joaquin were, at one point, possible landfall issues but we know how that turned out.

However, Joaquin’s indirect influence on the Southeast with its moisture plume feeding in to an upper level low brought historic flooding and excessive rain to parts of South Carolina. It wasn’t storm surge but it was an opportunity to test the new cameras in the field once again and in much warmer (and wetter) conditions.

My colleague from Houston joined me in Wilmington where we prepared three units for deployment along the coast in North and South Carolina. We put two along the Outer Banks where unusually high tides were wreaking havoc on the dune line. The third camera was placed in Charleston where it streamed live for 36 hours as the rain fell, leading to extensive flooding. Check out the time lapse from that camera below. Notice all of the people using various means of “transportation” to maneuver through the flooded streets. It wasn’t enough of a flood to warrant us putting out our new water height marker but the test once again proved beyond any doubt that this new technology going to work.

The use of time lapse is very important in understanding how fast conditions change. Because the live video stream is archived off-site in three hour chunks, I can go back and pull down any or all of the video and then process it for various time lapse purposes.

However, it is the live, as it’s happening, video that is most compelling. Being able to deploy one of these cameras in just a matter of minutes to practically anything that we need to has huge implications. We can totally immerse our viewers in to the weather event like never before. With the addition of audio, it makes it even more like you’re right there, in the heart of the action.

Even though Joaquin went out to sea, scraping Bermuda on its way, it provided us with the chance to continue testing in real weather conditions. I cannot emphasize how important this is. I can set up a camera system in my back yard until the cows come home but doing it in the field is better. We need to know how well everything works (or doesn’t) with rain, snow, wind, people around, etc. So far, we were perfect for the year – having tested the cams during two massive winter storms in the Northeast and a high-impact flood and tide event in the Southeast. I have to say that at this point, the success exceeded my expectations. This was new ground for us, being able to deploy cams spread out over hundreds of miles and having confidence that they would perform as designed. Still, no hurricanes yet. The 2015 season appeared to be winding down for U.S. concerns.

As October entered its third week, hurricane Patricia dominated the headlines. At one point, winds topped 200 mph in a small area surrounding the tiny eye of the east Pacific beast. It was forecast to strike Mexico west of Manzanillo and then quickly weaken over rugged terrain.

However, as was mentioned by the NHC in their discussions regarding Patricia, it seemed that the remnant energy would survive the passage over Mexico and re-energize to some extent over the northwestern Gulf of Mexico.

The flood threat for parts of Texas began to increase. Many areas from Austin and the surrounding Hill Country down to Houston had seen more than enough rain this past spring. Although it had been fairly dry all summer, the prospects for excessive rain due to the remnants of Patricia raised concerns for the region.

Oh the irony! The large yellow case used to house a big battery, laptop and other bulky equipment needed to stream live video. Here, I have packed three of the new cams in to that same case for transport via airline to Houston

Oh the irony! The large yellow case used to house a big battery, laptop and other bulky equipment needed to stream live video. Here, I have packed three of the new cams in to that same case for transport via airline to Houston

At literally the last minute possible, I decided this was a chance to test the new cameras under stressful conditions, similar to a hurricane event. Time was running out, tremendous amounts of rain were forecast to move in to Texas from the southwest and I had to get to Houston quickly. There was no time to drive the cameras there in the Tahoe. Instead, I packed three cams in to one of the large cases that we used to use for just one camera unit back in the day. Talk about irony! All three fit perfectly inside what was once the case for just one bulky camera system. The cost for me to “airline” the cams was only $65! I could not believe it. In less than four hours on Saturday, October 24, I was in Houston and ready to roll.

I met up with Kerry, my colleague in Houston, and we worked quickly to deploy one of the cameras along Brays Bayou – part of the Harris County Flood Control District. This time, we would use one of the high water markers. After about 15 minutes of effort, we had the camera secured to a massive concrete column and the marker set up on the adjacent column. Kerry warned me that the water would rise tens of feet and easily submerge the camera. I had trouble believing this since I was not familiar with the flood control system in Houston and could not imagine that much water rising so fast. He knew it and said it was almost a certainty. He pointed out that on Memorial Day when excessive rains fell across the region, the water level was some 35 feet higher than where we were standing, almost topping the banks of the bayou.

One of three cams set up for the October 24 flood event in Houston, here along Brays Bayou near 288

One of three cams set up for the October 24 flood event in Houston, here along Brays Bayou near 288

The camera was secured using strong zip ties and a steel chain to keep it on the column should the zip ties fail. Everything was running and we were streaming live from an unmanned camera deep inside Brays Bayou. What happened next was an instant classic.

We spent the next several hours deploying the two remaining cameras out on Bolivar peninsula to capture the potential tidal flooding that was predicted due to the onshore flow. Patricia was no more but the remnants spawned a new low pressure area over the very warm Gulf with tropical storm conditions being felt across the region.

As the day wore on, the rain fell hard across Houston and vicinity. Slowly but surely the bayous began to rise. We watched our live cam in Brays as the water steadily came up and swallowed the sidewalk, normally used by bikers and joggers on sunny days.

By 4:30 pm the water had risen over 6 feet and was about to reach the camera itself. The high water marker we had set up came loose in the wind and folded over on itself. However, the mid-point, 5 feet above the concrete below, was still clearly visible since that is where we ran a zip tie. At least we knew where the 5 foot line was. The water kept on coming. Within 15 minutes, the camera was submerged and eventually the data signal could not reach the cell site and we lost the feed. We were not surprised about this but I was shocked at how fast the water came up.

As night fell, more and more rain did as well. Houston was flooding once again as were parts of the Hill Country. Patricia left its mark on Mexico and, indirectly, on parts of Texas, Louisiana and beyond.

The next day, by late in the afternoon, we went back to Brays Bayou to retrieve the camera. To my astonishment, the water had risen all the up the side of the banks, some 25 feet higher than normal. As for our camera? It was doing just fine, resting on the flowing water, held on by the thick chain that secured it to the column. We donned some hip-waders and made our way down to the flooded bayou to grab the cam. Success once again! Despite being under water until the pressure was enough to pop the cam out from the zip ties, the case, a Pelican Storm Case, was almost completely dry inside. Only about a teaspoon of seepage was noticed. Not bad considering where it was for 30+ hours. No equipment was harmed and the cam was ready for the next event.

Check out the time lapse and then the last few minutes of real-time video from that camera:

The other two cameras out along Bolivar also worked perfect. We had now streamed more live video from more cameras than ever before – all during a season with no hurricane landfalls. Needless to say, we were quite impressed at how well things were working and it was about to get even more interesting.

During that event, Kerry had shared the links to the camera feeds with the local emergency management officials in Houston and Harris county. Kerry works with Amateur Radio for severe weather and other emergency situations and has numerous contacts within what is called TranStar. He also shared the archival video with Jeff Lindner of Harris County Flood Control District. All of a sudden, there was great interest in our project. We received tremendous praise for the efforts and set up a meeting in early November to discuss working together during future flood events. The idea was simple: we need to test the equipment regularly and HCFCD needs real-time video from as many bayou sites as possible. TranStar can only do so much and is really more for traffic issues, not weather events. We agreed to collaborate on working future flood threats and even worked to select three sites for when the next event takes place. It only took two weeks.

Kerry kept three cams with him in Houston and during a low-end flood threat on November 14, he set out all three along Houston area bayous: Brays, South Mayde Creek and Brickhouse Gully. This time, Jeff and his team were watching in real time as the rain fell. He too shared the live feed links with local officials and the media. KPRC, the NBC station in Houston, tapped in to the feeds for on-air use. The flooding was minor but the test was, once again, perfect. In fact, the cameras outlasted the event! Kerry went out the night after the rain and collected all three cases and had to turn them off as they were still running long after the front passed through.

The results were impressive. Jeff and his team had live video from actual USGS flood gauge sites (South Mayde Creek and Brickhouse) and an incredible view of Brays Bayou literally looking down from Hwy 288.

The time lapse was just as impressive. The best example was from South Mayde Creek. Watch as the rain comes in about 1/3 of the way through the video. Then, the creek rises in dramatic fashion, filling the inside floodplain in just a matter of hours, if that.

Indeed, we knew we were on to something very special with this new generation of unmanned camera system. By now, we had seven cameras ready for deployment. After the mid-November event, we ordered parts for five more – bringing our total to 12. This is some serious fire power for the next hurricane or major winter storm or Houston area flood. What would we do with it? How can it best serve the public? Here is the plan:

All of the testing was done using our public Ustream account. This means that anyone with an Internet connected device, from PC to Mac to Smartphones and almost all tablets, could access the feeds at zero cost to them. The streams are monetized with commercials that play throughout the duration, usually every 15 minutes. This is how Ustream pays for the bandwidth and we collect a tiny portion of the revenue as well.

The idea is to continue to make the feeds available to the public at no cost. We do have a subscription site that, ten years ago, was set up to provide exclusive access to our live video. However, times are changing and we now have far more cameras than ever before. We feel it is best to provide the feeds to anyone who wishes to watch at no cost what so ever. We will still offer our subscription service but it will focus much more on forecast analysis and private live video discussions with our clients. There are other unique features as well but the days of keeping our live video during field missions behind a paywall are over.

As such, anyone, including the media, may use our live feeds as much as they want. The feeds can be shared, embedded on your site, put on social media, what ever you want, it’s all good. This will get the public more involved than ever before. From the moment we leave the driveway for a field mission to the moment it’s all over, our audience can be immersed in the event like no other time before. You will go along with us as we set up each camera. If it is a substantial hurricane storm surge threat, you will be able to watch as the water rises on our markers. Imagine being able to see, in real time, just how high the water is. You won’t have to imagine – it will happen right on your screen.

In addition, you will, for the first time, hear a hurricane like never before. We can place these cams practically anywhere, giving you a front row seat to one of the most dangerous weather events on the planet. You will feel as if you’re there yet you’ll be safe in your home. Better yet, if you evacuated the region where we deployed these cams, you can see precisely why you made the right choice. All you have to do is tune in. We will provide a totally immersive experience that will show you the power of a hurricane (and other severe weather events) like you’ve never seen or heard before. And it won’t cost anything.

The benefit to emergency management and law enforcement officials is huge. Social media can be a great tool to make sure local officials have access to the live cams with ease. Jeff Lindner knows the potential of this as do other public officials that we have worked with or come to know over the last decade. Now it will be easier than ever before to gain access and know precisely what is going on via our live feeds. It’s a win-win for all, no doubt about it.

As for the science? So much information is captured via video, especially from a fixed camera location. Time lapse will continue to be an extremely valuable tool as we deploy in future events. For the scientists and forecasters at the National Hurricane Center and local WFOs, real time video as well as archival clips will go a long way in public awareness campaigns. All using technology and not putting anyone in harm’s way to capture the video.

It’s taken a decade to get here but here we are – on the brink of something so innovative and useful for those who like to watch the weather when it turns against us. We have our own network of unmanned cameras, coupled with weather data gathering capabilities that will enable us to bring you what will ultimately be the best hurricane coverage you have ever seen. All because we don’t sit around twiddling our thumbs when there are no hurricanes impacting the USA. You, our audience, will be the beneficiaries of those efforts. I guarantee that you have never seen anything like what we will unleash the next time a hurricane, especially a major hurricane, crosses the coast of the United States. It’s only a matter of time.

In the off-season, we will have winter storm coverage and blog posts. As for next hurricane season and what I think might happen? Well, if history is a guide, then the fall of the current El Nino in to possible La Nina conditions by next summer could mean we have a very busy season. Either way, like we do when there are NO hurricanes, it is always best to prepare for when there ARE hurricanes.

We are ready. Make sure you are too.

M. Sudduth 10:45 AM Dec 1

TS Kate forms but will have little overall impact

Visible satellite picture showing TS Kate in the central Bahamas

Visible satellite picture showing TS Kate in the central Bahamas

The 2015 hurricane season now has its 11th named storm, Kate. The NHC made the upgrade this morning citing 40 mph winds with a pressure of 1008 mb. Kate is moving towards the northwest but will eventually turn out in to the open Atlantic head of an approaching trough.

Right now, the storm is impacting portions of the Bahamas where tropical storm warnings are in effect. However, much of the inclement weather associated with the storm is located to the east of the low level center, leaving much of the Bahamas free of any significant impacts.

Water temps along the track can still support a hurricane but the upper level winds should prevent that from happening. The official NHC forecast calls for some additional strengthening and Kate could reach 50 mph before being absorbed by a larger storm system emerging from the East Coast later this week.

There might be a period of increased swell activity for parts of the Southeast and East coasts which could lead to additional beach erosion issues during times of high tide as the week wears on. Outside of that, I see no reason to worry about Kate along the United States coast.

I’ll post a video discussion covering the latest on Kate this afternoon.

M. Sudduth 8:50 AM ET Nov 9

One more storm before season ends?

Latest tropical weather outlook map indicating a couple of areas to watch over the coming days

Latest tropical weather outlook map indicating a couple of areas to watch over the coming days

November is typically a quiet month in the tropics and in fact, it is extremely rare for there to be a November hurricane threat to the United States. Cooler near-shore sea surface temperatures combined with increasingly stronger upper level winds usually keeps a lid on things – but not always.

During the last few weeks of the hurricane season, we look to the Caribbean Sea and southwest Atlantic for the best chances of development. Right on cue, both areas have something to monitor over the next few days.

The first area of interest is a broad area of low pressure tucked in to the northwest Caribbean off the coast of Belize. While it looks fairly impressive on satellite imagery, the forecast calls for it to move inland over the Yucatan soon and then over the southwest Gulf of Mexico by this weekend. Although water temps are warm enough in the region, strong upper level winds ahead of an approaching cold front, combined with land interaction, should limit development. Heavy rain and periods of gusty winds are possible as the tropical low moves across the Yucatan over the next day or two.

Recent satellite photo showing two distinct areas of clouds, showers and thunderstorms in the Caribbean Sea

Recent satellite photo showing two distinct areas of clouds, showers and thunderstorms in the Caribbean Sea

Meanwhile, another tropical wave has flared up as it enters the eastern Caribbean Sea. This is the second area that the NHC mentions on their latest outlook. It has a slightly better chance of development over the next few days and this is shown by most of the reliable global computer models. It is possible that this system could eventually become a tropical storm over the southwest Atlantic sometime next week. So far, with the exception of heavy rain and gusty winds spreading in to the Lesser Antilles, there does not appear to be any significant threat to land from this feature. It will be something to monitor but as I mentioned earlier, hurricane threats this late in the season are few and far between.

The eastern Pacific has returned to being very quiet for the time being. After super-hurricane Patricia, this is definitely great news. Water temps are still very warm off of Mexico and Central America and even though the season usually slows down in this region during November, it would not surprise me in the least if we saw one more storm or hurricane develop somewhere in the extreme southeast Pacific before all is said and done. For now, nothing is brewing but the pattern suggests that perhaps that will change in the longer term.

I’ll have more tomorrow.

M. Sudduth 8:30 AM ET Nov 5

 

Hurricane Patricia a record setting event

It’s been quite a year for tropical cyclones globally. After several years in a row with few intense hurricanes and typhoons, 2015 has seen a remarkable turnaround. The latest is Patricia, now poised to strike Mexico near Manzanillo later today, and it is about as intense as they come.

There is not much I can say in terms of preparedness actions. Simply put, people in the path of this hurricane need to leave, period. If they haven’t done so already, they need to get moving. That being said, there’s actually some good news.

Patricia is NOT a 100 mile wide or 60 mile wide EF-5 tornado. I’ve seen people saying this on social media and it’s just wrong. Let me explain…

A hurricane like Patricia is very rare, obviously. One thing we do know because of the recon flights that have provided incredible in-situ data is that the radius of maximum winds (RMW) is very narrow. In fact, the ENTIRE extent of hurricane force winds, 74 mph to 200 mph in this case, is ONLY 30 miles from the eye. This is extremely important because it limits the amount of real estate that will have to deal with those winds. In other words, if you live just 40 miles from the eye, you would hardly notice as the core passed by. Move 20 miles closer to the eye and it’s a terrifying siege of flying debris and flesh-stripping wind. So while it will be awful for those who have to endure the core, it’s not like we’re talking about 100 miles of coastline laid to waste.

Another aspect of the small RMW is the storm surge. Katrina had a storm surge of 28+ feet in some locations due to its enormous RMW – more than 90 miles at one point. The result was a surge of water pushed onshore from Louisiana to Florida. In the case of Patricia, it will be a small area, maybe 10 to 20 miles, that receives a possible catastrophic storm surge. Wind drives the surge and the wind is only 200 mph very close to the eye.

I bring this up because it is important to keep the facts straight and not let the historic moment become clouded with information that is simply incorrect. Patricia is bad enough on its own and for those who remain in its path, today will be one not soon forgotten.

Texas to receive Patricia remnants

What happens after Patricia makes landfall? First, it will weaken extremely fast over the higher terrain of interior Mexico. Sadly, there will be potential for loss of life due to the flash flooding and mudslides as the torrents of rain impact those same mountains.

Info-graphic concerning the threat to parts of Texas from the remnants of hurricane Patricia

Info-graphic concerning the threat to parts of Texas from the remnants of hurricane Patricia

Interestingly, it looks as though the low level center will be stripped away but the mid and upper level energy will remain fairly intact. This means that there is a slim chance that once the remnants reach the warm Gulf of Mexico, some regeneration could take place. While this is NOT being forecast by the NHC right now, it would not surprise me to see it happen over the weekend or on Monday. What is more likely to happen is that Patricia’s energy leads to more of a non-tropical low pressure area to develop and bring gale force winds and extremely heavy rains to a large part of Texas. All of this will combine with a frontal boundary draped across the region and will help to focus the moisture feed, dumping excessive rain over a large swath of Texas.

In addition to the rain, coastal flooding is a real possibility with the strong onshore flow that is forecast to develop. Water levels could rise several feet in typical flood-prone areas away from the Galveston Seawall. In short, Patricia will leave a mark, even if only indirectly, long after its historic landfall in Mexico.

I will have a video discussion posted this afternoon that will highlight the landfall of Patricia and what to expect after tonight for Texas and vicinity.

M. Sudduth 9:40 AM ET Oct 23