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Super Typhoon Surigae seen on satellite imagery Saturday morning east of the Philippines. (CIRA/RAMMB)

Super Typhoon Surigae surged in intensity from a Category 1 storm on Friday to a beastly Category 5 monster on Saturday, with maximum sustained winds estimated at 190 mph with higher gusts.

Why it matters: This storm — known as Typhoon Bising in the Philippines — is just the latest of many tropical cyclones to undergo a process known as rapid intensification, a feat that studies show is becoming more common due to climate change. It weakened slightly, to the equivalent of a strong Category 4 storm, on Sunday.

  • The storm set a record for the strongest tropical cyclone during the month of April anywhere in the Northern Hemisphere.
  • The storm will recurve out to sea just northeast of the Philippines, sparing the disaster-prone country from its worst impacts, but it will bring heavy rains, high seas and gusty winds to some areas.
  • It may also help shake up weather patterns far downstream, including across North America, over the next few weeks.

Details: The storm maxed out at the top end of the scale according to techniques that meteorologists use to estimate storm intensity via satellites, scoring an 8 out of 8 on one particular metric, which is unusual.

  • Of note: Since aircraft do not fly into West Pacific typhoons the way they do in the Atlantic, we may never know how strong Super Typhoon Surigae was, and it's possible the 190 mph intensity was an underestimate.

By the numbers: The storm is the first Category 5 tropical cyclone (a category that includes hurricanes, typhoons and cyclones) to occur in 2021. Typically, each year sees about 18 Category 4 and 5 storms around the world.

  • The storm jumped from a 90-mph Category 1 storm Friday to a 180-mph Category 5 super typhoon 24 hours later, a staggering rate of intensification that is more than double the criteria for rapid intensification. The storm further intensified to an estimated maximum sustained winds of 190 mph by Saturday evening.
Chart showing satellite-based intensity estimates of Super Typhoon Surigae, including the sharp jump during the past 24 hours. Chart: University of Wisconsin/CIMSS

Driving this news: The number of high-end tropical cyclones is increasing as the world continues to warm.

  • Projections show that future Atlantic hurricane seasons, for example, could bring a greater proportion of Category 4 and 5 storms, though it's not yet clear if the total number of storms will increase.
  • There is evidence, including from the record 2020 Atlantic hurricane season, that more storms in the North Atlantic Ocean basin are undergoing rapid intensification, which can be extremely dangerous if the intensity ramps up near land.
  • Super Typhoons like Surigae feed off warm ocean waters and humid air masses, both of which are increasingly abundant as sea and air temperatures warm in response to human-caused global warming.

The bottom line: Super Typhoon Surigae is passing east of the Philippines on Sunday, and is close enough to bring dangerously high surf, heavy rain and gusty winds to eastern and northeastern portions of the country, including the eastern Visayas and Bicol region.

Go deeper

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Biden reaches agreements with Uber and Lyft to give free rides to vaccine sites

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The Biden administration has reached agreements with ride-sharing companies Uber and Lyft to offer free rides to coronavirus vaccination sites through July 4, the White House announced Tuesday.

Why it matters: The free rides, starting in the next two weeks, are part of the Biden administration's push to administer at least one vaccine dose to 70% of U.S. adults by Independence Day.

Ben Geman, author of Generate
1 hour ago - Energy & Environment

Biden officials green-light nation's first big offshore wind project

Illustration: Aïda Amer/Axios. Photo by Brendan Smialowski/AFP via Getty Images

The Biden administration today gave final approval to Vineyard Wind, a project off the Massachusetts coast slated to be the country's first large-scale offshore wind farm.

Why it matters: While the green light for the long-proposed project was expected, it marks a key step in White House plans to help spur development of a suite of coastal projects off New York, New Jersey and other states.

Global temperatures are cooler in 2021 than other recent years

Data: NASA; Chart: Andrew Witherspoon/Axios

With a moderate La Niña event in the tropical Pacific Ocean, global temperatures in 2021 are running decidedly cooler when compared to recent years.

Why it matters: The lack of a new warmest year record in 2021 could sap some of the sense of urgency among policymakers in the U.S. and abroad during a critical year for enacting stricter emissions cuts to meet the Paris Agreement's targets.