Hurricane Blanca in the east Pacific
It’s like 2014 all over again in the east Pacific. Hurricane after hurricane developing over the abnormally warm water in the region. The latest, Blanca, poses a risk to the Baja peninsula and eventually parts of the Southwest United States.
The latest from the NHC indicates that winds are near 110 mph. The forecast suggests that Blanca will become significantly stronger as it moves roughly parallel to the Mexican coastline. Fortunately, the hurricane is far enough off shore to spare the mainland any direct impacts. However, in a few days, the southern tip of the Baja is probably going to have to deal with this system.
Most model guidance and the official track forecast from the NHC suggest that Blanca will turn slightly more to the east with time as the high pressure area over the east Pacific breaks down due to a trough of low pressure off the California coast. This will allow the hurricane to track right in to the Baja region this weekend.
The intensity forecast brings Blanca close to category five due to very warm ocean water and an ideal upper level pattern. In fact, the hurricane is going through a steady period of rapid intensification right now which should last for another day or so. This means at the very least, tremendous swells will begin to impact the coast ahead of the hurricane itself due to the intense winds over the open ocean.
How strong Blanca is once it encounters land along the southern Baja remains to be seen. Water temps cool off along the forecast track close to the peninsula. Also, the NHC mentions upper level winds becoming less favorable with time, inducing shear over the hurricane. All of these factors should result in a weaker system at landfall. No matter, interests in the region should prepare for a hurricane and its associated effects by this weekend.
Once Blanca makes landfall and interacts with the Baja it will decay very quickly. However, the moisture plume that will stream northward from the dying hurricane will inevitably dump heavy rain over parts of southwest Mexico and the southwest United States. Right now, this does not look to be as serious a situation as we saw unfold last year with Pacific hurricanes Norbert and Odile. Moisture will be on the increase across the Southwest by early next week but it is too soon to know just how much and precisely where at this point. The forecast will be refined in the coming days and much will depend on how strong Blanca remains after landfall.
In other news, I am heading out beginning today for a trip to Houston, Texas for the annual Ready or Not Houston/Galveston Hurricane Workshop this Saturday. It is probably the largest event of its kind in the country and is well worth the time of anyone who stops in for a visit. Numerous agencies, news media, hurricane experts and relief organizations participate in order to bring the public exceptional hurricane information and preparedness info.
I will have the HurricaneTrack Chevy Tahoe on display along with several pieces of brand new equipment that we have developed for observing hurricanes up close and personal using technology. I will also have our HURRB (Hurricane Research Balloon) payload to show off as well. In fact, after the workshop wraps up Saturday, the team and I head up to Amarillo to prepare for a test launch of HURRB on Monday morning.
Our goal is to have a successful launch and recovery of the payload via high-altitude weather balloon. The on-board weather computer will store air pressure, temperature and humidity data every two seconds for the entire mission. If all goes as planned, the payload will ascend to at least 100,000 feet above Earth before the balloon bursts due to extreme low pressure. HURRB will then fall back to the ground via parachute to be retrieved by our team using satellite and ground based tracking. We’ll get to see it all from the point of view of two GoPro cameras mounted on the outside of the payload.
I will stream the entire trip out to Texas and back live on our public Ustream channel. On Monday, bright and early at that, I will also have the HURRB test streaming live as well. It’s all part of our own preparedness activities for the season ahead, no matter what it brings. Despite the forecast for fewer than average hurricanes, we need to be ready just as you do for that one landfall possibility that could change everything. If you live close enough to Houston to make it worth your while, I invite you to come out to the George R. Brown center on Saturday. Stop by the Tahoe and say hello. It’s an important event and we are proud to support it by our participation. No one knows for sure what kind of season we will end up having, being ready makes sense, no matter the numbers being forecast.
I’ll have more from the road including blog posts concerning Blanca and its projected impact on the Baja and the Southwest U.S.
M. Sudduth 9:35 AM ET June 3