Wednesday, June 30, 2021

Records smashed again: Portland infrastructure crumbles under 116-degree heat

 By Mark Puleo, AccuWeather staff writer

Published Jun. 29, 2021 11:26 AM EDT Updated Jun. 30, 2021 9:49 AM EDT








Three days, three records. On Monday, for the third consecutive day, the high-temperature page of Portland's record book needed a rewrite.

Portland has been at the epicenter of a record-shattering heat wave that has been sending temperatures soaring to previously unimaginable levels across the northwestern United States and western Canada. Among the victims left in the heat wave's wrath have been stricken residents, buckled streets and melted power cables.

Little relief has been offered even at night, and the city had record warmth on Tuesday morning by dropping only to 75 degrees Fahrenheit, almost 20 degrees above average.

The city continued its streak of searing heat Monday, setting a new all-time record high temperature in the process.

The intense Portland heat has caused streets and sidewalks to buckle. (AccuWeather/Bill Wadell)

The day's highest mark reached 116 degrees Fahrenheit, breaking the one-day-old record of 112 set Sunday. That had broken the anything-but-ageless record of 108 set Saturday. However, prior to that, the all-time high truly did seem untouchable, as no day had touched the previous record of 107 F since August 1981.

For a city that typically sees average highs top out in the low 80s during the year's hottest months, in July and August, this June blast of heat was never something many in the city could have imagined.

The city's infrastructure and operations were a testament to that.

On Monday, power cables supporting streetcars in Portland were stretched to the extreme, melting in some areas.

Less than 50 miles south of Portland, the city of Salem, Oregon, posted the day's highest temperature, hitting a new all-time high of 117 degrees. For reference, Las Vegas has never recorded a day warmer than that.

On such a hot day, even cold conditions can become dangerous for those looking to cool off in rivers or streams.

Power cables supporting Portland streetcars wilted under the intense heat wave. (Twitter/@PDXStreetcar)

The shock from cold water, as low as 50 degrees, presented a risk to even the most experienced swimmer, Robert McDonald told AccuWeather National Reporter Bill Wadell.

McDonald, operations manager with AMR, told Wadell that he was proud of the EMS response in the area, which has helped save lives as more than a dozen people were rushed to the hospital with heat illnesses Monday.

The all-time record high for the state of Oregon is 119 set in Pendleton on August 10, 1898 and previously on July 29, 1898.

"This was a big turn for EMS in the region, but I gotta tell you that I applaud most everyone that’s participated," he said. "I applaud our crews, they have done an amazing job in what can only be called an austere event. It’s hot and difficult out there."

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The Oregon Health Authority reported a total of 506 heat-related visits to emergency departments and urgent care centers over the past four days, according to CNN, and at least 251 visits occurred on Monday.

Across Oregon, authorities have speculated that the heat played a role in at least seven deaths.

One employee at Ernst Nursery and Farms had been found unresponsive in the field at the end of his shift, an agency spokesperson told The Associated Press. The man, whose name was not released, had been working on a crew moving irrigation lines.

Another four deaths in Puget Sound City may have also been due to the heat, according to officials in Bremerton, Washington, though the city's medical examiner told the Kitsap Sun that firefighters cannot say definitively whether heat was the cause of death, the AP reported. Authorities in Bend, Oregon, have said that the deaths of two people without housing may have also been de to the extreme heat.

The heat wasn't any less brutal in Washington where at least 676 people visited emergency departments for heat-related symptoms from Friday into Sunday. Spokesperson for the Washington State Department of Health Cory Portner told CNN that 81 of those cases led to inpatient admissions.

At least two deaths in Washington were blamed on heat exposure, according to The Seattle Times, which cited the King's County Medical Examiner's office. A 65-year-old woman from Seattle and a 68-year-old woman from nearby Emunclaw died of hyperthermia, or a form of overheating, the medical examiner's office said, according to the Times.

One group directly stricken by heat illnesses has been pool lifeguards. The Portland Parks and Recreation Department announced the closing of public pools on Monday after multiple lifeguards experienced heat-related illnesses on Sunday.

Nicola Biello, 9, was hoping to cool off at a Portland pool on Monday, but found the gates locked after multiple lifeguards had suffered heat-related illnesses over the weekend. (AccuWeather/Bill Wadell)

For Gena Biello and her 9-year-old daughter Nicola, that meant having to make a change of plans. Gena considered the safety of the lifeguards as they were driving to the pool, but told Wadell that she was just hoping the pool would be open for her own family's sake of cooling off.

"I thought that it does kind of make sense because the lifeguards would be really hot, but it’s also a little bit of a bummer that the pool’s not open," Nicola said.

Her mom agreed.

"Ironically enough, who would have thought we’d come to a day when it’s too hot to swim?" Gena said. "That’s where we’re at now."

Portland, Oregon's average summer temperature has trended upwards over the past several decades. (Climate Central)

By Tuesday, the temperature in Portland had cooled off some as the city registered a high of 92 -- still well above average, but a far cry from the searing 116 a day earlier. Also on Tuesday, the 116-degree record heat had caught the attention of President Joe Biden.

Speaking at a warehouse in Wisconsin, Biden, who was discussing his proposed infrastructure plan, mentioned the high heat in Portland.

"Anybody ever believe you’d turn on the news, it says it’s 116 degrees in Portland, Oregon? 116 degrees," the president said. "But don’t worry, there is no global warming. It doesn’t exist. It’s a figment of our imagination."

As the week progresses, families like the Biellos may need to continue finding alternative methods to stay cool. AccuWeather meteorologists forecast the gripping heat to linger through Thursday.

Though the Northwest heat’s rage may soften slightly enough to allow the ink on the record books to dry, the unusually high temperatures will still remain in place, including well beyond the Fourth of July.

“In fact, record-challenging temperatures are likely to persist east of the Cascades and throughout western Canada into the early days of July,” AccuWeather Meteorologist Renee Duff wrote. “High temperatures can still soar close to 20 degrees above normal each day for many locations from the middle of the week onward.”

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Tropical Atlantic going neck and neck with record 2020 hurricane season

 By Alex Sosnowski, AccuWeather senior meteorologist

Two areas of interest or tropical disturbances were spinning over the Atlantic Wednesday, June 30, 2021. One can be seen just left of center of the satellite image above, and another was situated farther to the right. South America appears on the lower left, while Puerto Rico is visible in the upper left. Dust from the Sahara Desert (brown shades) was evident. (CIRA at Colorado State/GOES-East)

Following the rapid development of Tropical Storm Danny and its landfall in the Southeast Monday, not only is the 2021 Atlantic hurricane season running in the same pack as last year's record season, there is the chance it could pull ahead should the "E" storm form in the next week. There are a couple of areas that AccuWeather meteorologists are monitoring for development in the coming days.

Formation of a named tropical system or two is not highly unusual by late June, but on average the second named storm does not brew until early August, according to the National Hurricane Center (NHC). To have four such systems by late June is teetering on record territory. The average date for the fourth named storm to form is Aug. 23 and, for the fifth storm, the average formation date is Aug. 31.

Last year, Dolly missed the record for the earliest fourth-named storm or D-storm by just a few days. In 2016, Danielle formed on June 20, and Dolly formed three days later in 2020 on June 23. However, every storm after Dolly last year set an early-formation record. The "E" storm, which was Ernesto, formed on July 6, 2020. With two potential candidates in the next seven days, there is at least a chance of a record being broken should Elsa, the next name on the 2021 list, take shape.

The 2020 Atlantic hurricane season was the busiest on record with 30 named storms that required the use of the Greek alphabet, once the last name and letter "W" on the list was used up. That was the second-only and last time the NHC will tap into Greek letters to name storms that extend via the original designated list.

2020 Atlantic Hurricane Tracks

AccuWeather

The 2021 season is forecast to fall short of the number of named systems from 2020. However, AccuWeather forecasters say that to have a significant amount of tropical disturbances that are originating from Africa this early is a concern.

Typically, through the middle of the summer, vast areas of dry air, dust, wind shear over top of cool ocean temperatures tend to prohibit development of these features, which meteorologists refer to as tropical waves, as they move westward over the Atlantic.

Thus far this year, most named systems, with the exception of Ana that formed over the central Atlantic, developed fairly close to land. That is typical for early in the season, but that may be about to change, AccuWeather forecasters say.

There are two tropical waves on AccuWeather's radar over the south-central Atlantic that are being closely watched. These features originate from Africa and travel westward across the Atlantic. Disturbances that originate from this pattern of tropical waves are called Cabo Verde systems, named after a group of islands off the coast of Africa.

These waves of low barometric pressure ignite clusters of showers and thunderstorms. Many of these waves fail to develop, but a few can evolve into a tropical depressions, storms and hurricanes over time under ideal atmospheric conditions.

So far in 2021, there have been prohibitive conditions in place, but the waves in general emerging from Africa have been more robust than usual for so early in the season. In a sense, the pattern resembles that of August rather than late June or early July.

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While tropical waves have succumbed to the inhibiting factors thus far, there are indications that at least one of systems currently drifting westward may have more fight than predecessors and may cause trouble as it approaches and moves through the Caribbean.

Since these long-track disturbances tend to spend more time over water, they tend to have more time to organize, develop a circulation and strengthen, when compared to near-shore systems (also called homebrew storms). Because of that, they could potentially pose a more significant threat to lives and property as they approach land areas.

One lead tropical wave was approaching the Lesser Antilles on Wednesday has been dubbed 95L by NHC and continues to track westward.

"Satellite images from Wednesday morning show a cluster of showers and thunderstorms associated with this weak area of low pressure, AccuWeather Senior Meteorologist Rob Miller said.

"While 95L is now moving over warm waters, the system is also moving into an environment with strong wind shear and dry air," Miller explained.

Weighing the conducive factor of warmer water with the inhibiting factor of wind shear and dry air, some low-end tropical development is possible over the next few days as it moves across the eastern and northern Caribbean. However, the risk of development has lowered compared to a couple of days ago.

Regardless, locally heavy showers and thunderstorms, along with some gusty winds, are expected to impact the Leeward Islands Wednesday and the British and U.S. Virgin Islands and Puerto Rico by Thursday.

Beyond this area, further development and track is questionable due to possible degradation caused by interaction with the land of the Greater Antilles. Should the system survive and jog north or south of these larger islands, then there may be a greater chance for the system to strengthen.

There is a system several hundred miles farther east of 95L, which has been given an investigative identification by the NHC of 97L.

Satellite images on Tuesday began to reveal some spin about the clouds associated with this feature. That spin was more evident on Wednesday.

This trailing feature has a more favorable environment for development, since 95L may help to moisten up the atmosphere and displace some of the dust in the region. There is less wind shear in the vicinity of 97L as well.

This feature is tracking a bit farther south than 95L and has a better chance at moving into open waters of the middle of the Caribbean, rather than brush the islands on the northern edge of the basin.

"This disturbance is likely to develop as it moves into and travels through the Caribbean into early July," Miller said.

Expected to cross the Windward Islands at the end of the week, 97L will bring another uptick in showers and thunderstorms.

Should the system hold together, it is forecast to drift west-northwestward over open waters of the Caribbean Sea spanning July 3-5. It could enter the Gulf of Mexico on or about July 6. Waters in both of these basins are generally in low to middle 80s F and plenty warm enough to support tropical development or sustain an established tropical system.

All interests in the Caribbean should closely monitor the progress of these two disturbances as conditions are at least marginally favorable for development over the next several days or more. If one system should fizzle out, there is still a significant risk that the second system may continue on.

In addition to these two main areas of concern, patches of showers and thunderstorms have persisted over the Gulf of Mexico thus far this week.

"The Gulf of Mexico will probably remain an area where there is at least a very low risk of a weak system popping up very close to the coast over the next week or so," AccuWeather Senior Meteorologist Dave Houk said.

AccuWeather meteorologists are forecasting 16-20 named systems for the Atlantic basin for the 2021 season with seven to 10 hurricanes and three to five direct impacts on the U.S. Both Danny from June 28-29 and Claudette from June 19-23 tracked over the Southeastern states.

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Severe storms to slice through 'hot, sticky' Northeast

 By Jessica Storm, AccuWeather Meteorologist

Updated Jun. 30, 2021 9:43 AM EDT








June is anticipated to end on an active note in terms of severe weather in the Northeast, with millions of Americans at risk for dangerously potent thunderstorms Wednesday. As the second heat wave of the season continues, severe thunderstorms from Pennsylvania to Maine can be fueled by sweltering heat.

"Some very strong thunderstorms are expected to flare up early on Wednesday afternoon across the Northeast's interior," said AccuWeather Senior Meteorologist Carl Babinski.

Contrasting weather conditions will battle in the humidity-rich East, spurring powerful storms in the afternoon.

"A slow-moving cool front will be intersecting with some very hot, humid air, and it will trigger lines of storms over upstate New York and northern New England before 2 or 3 p.m.," said Babinski.

More than 15 million people are under a slight risk for severe weather while nearly 8 million are facing an enhanced risk as calculated by the Storm Prediction Center (SPC). Boston is among the cities currently in the enhanced area, which is the third-highest threat level the SPC issues.

This map shows the threat level for severe weather across the Northeast Wednesday, June 30, 2021 as designated by the NWS Storm Prediction Center.

Flash flooding and damaging winds will be two of the biggest risks these storms pose.

"Storms will continue to thrive in a very hot, sticky environment later Wednesday afternoon and evening as they approach major metropolitan areas like BostonNew York and Philadelphia," said Babinski.

The thunderstorms are also expected to target cities such as Portland, Maine; Pittsburgh, Pennsylvania; and Syracuse, New York.

"We could see severe weather anywhere from the eastern Great Lakes to the East Coast," said AccuWeather On-Air Meteorologist Kevin Coskren.

Even outside of the area AccuWeather meteorologists are emphasizing for concentrated severe weather risks, thunderstorms across the Northeast into the Ohio Valley could turn heavy and gusty locally Wednesday.

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The biggest threats with these storms will include torrential downpours, as well as straight-line winds that could gust in excess of 60 mph, with an AccuWeather Local StormMax™ of 70 mph, according to Babinski. As a result, there could be downed trees and power outages, as well as street and highway flooding.

Straight-line winds are non-tornadic but powerful thunderstorm winds that can push trees and other objects in their way down in a single direction or in a fanlike pattern over a large distance.

Hail is not out of the question either, according to AccuWeather Senior Meteorologist Joe Lundberg.

Several National Weather Service offices across the Northeast have issued special weather statements warning of severe storms Wednesday.

AccuWeather forecasters urge residents to ensure they have a way to receive severe weather warnings.

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Motorists should use caution on roadways as heavy rainfall can produce pooling of water and a heightened risk of hydroplaning at highway speeds. Some highly impacted roadways will include interstates 81, 90 and 95.

While dangerous, these storms can bring beneficial rain to parts of the Northeast in need of it. About 70% of the state of Maine is in moderate drought, according to the United States Drought Monitor. Bangor, Maine, for example, has received less than an inch of rain during June, which is 26% of the normal precipitation there.

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Man missing at sea for nearly 2 weeks found alive in life raft off Washington coast

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