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Tag: 2017 Atlantic hurricane season

Yet another Atlantic tropical wave could develop, but dry air likely to limit development

Yet another Atlantic tropical wave could develop, but dry air likely to limit development

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The National Hurricane Center (NHC) is monitoring a tropical wave for development over the eastern tropical Atlantic. The Atlantic Main Development Region (MDR) has seen a total of eight disturbances so far monitored by the NHC – significantly more than the only one each in 2014, 2015 and 2016. The NHC gives this tropical wave, located several hundred miles southwest of the Cabo Verde Islands, a near zero percent chance of development within 48 hours and a 20 percent chance…

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Hilary and Irwin change little, Typhoon Nesat headed for Taiwan, 97L not expected to develop

Hilary and Irwin change little, Typhoon Nesat headed for Taiwan, 97L not expected to develop

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The global tropics remain active today, but little has changed since yesterday. Hurricane Hilary weakened to a tropical storm last night, and has changed little in strength today. Tropical Storm Irwin has also changed very little in strength. The eastern Atlantic disturbance was briefly designated Invest 97L last night, but was quickly dropped from the Tropical Weather Outlook after it failed to organize. Tropical Storms Hilary and Irwin still expected to merge early next week As of 2:00 p.m. PDT…

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Hilary expected to absorb Irwin, Nesat headed for Taiwan, Atlantic low pressure system may develop

Hilary expected to absorb Irwin, Nesat headed for Taiwan, Atlantic low pressure system may develop

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There are several areas to watch in the tropical Atlantic, Eastern Pacific, and Western Pacific today as the global tropics remain active. In the Eastern Pacific, Hurricane Hilary and Tropical Storm Irwin expected to begin Fujiwhara Interaction this weekend. The global models continue to indicate that the larger and stronger Hilary will be the dominant cyclone. In the Atlantic, an area of low pressure has formed from a tropical wave southwest of the Cape Verde Islands, and has a chance…

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Tropical wave over Eastern Atlantic may slowly develop

Tropical wave over Eastern Atlantic may slowly develop

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A tropical wave located a few hundred miles south-southwest of the Cabo Verde Islands has the potential to develop into the next Atlantic tropical cyclone as it moves slowly westward at about 10 mph. The National Hurricane Center (NHC) gives this wave a near zero percent chance of development within 48 hours, and a 30 percent chance within five days. The wave is currently accompanied by disorganized showers and thunderstorms. In the short term, a suppressed Kelvin Wave is located…

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Twin hurricanes Hilary and Irwin in the Eastern Pacific expected to undergo Fujiwhara interaction, a system worth watching in the Atlantic

Twin hurricanes Hilary and Irwin in the Eastern Pacific expected to undergo Fujiwhara interaction, a system worth watching in the Atlantic

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This week could get very interesting in the Eastern Pacific as Hurricanes Hilary and Irwin are expected to interact with each other in a rare phenomenon known as the Fujiwhara effect. Most global models indicate that Hilary, the stronger and larger storm, will be the dominant cyclone and Irwin is likely going to be absorbed into Hilary’s circulation. Meanwhile, Tropical Storm Greg has weakened to a Tropical Depression and is expected to become a remnant low during the next day…

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A look at the Atlantic: July 22, 2017

A look at the Atlantic: July 22, 2017

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Because of the recent active tropics, especially in the Eastern Pacific, I have not been able to release a typical “A Look at the Atlantic” post. I decided to do one today to give an update on the current state of the Atlantic and when we can expect to see our next tropical cyclone form. Sea surface temperatures Sea surface temperatures have continued to warm throughout the Atlantic basin, and are now warm enough to support development in most areas…

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Atlantic once again becomes quiet; five systems in the East Pacific

Atlantic once again becomes quiet; five systems in the East Pacific

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After Tropical Storm Don opened up into a tropical wave late Tuesday night, the Atlantic basin has gone quiet. Invest 96L is no longer expected to develop into a tropical cyclone and has been removed from the National Hurricane Center’s Tropical Weather Outlook. Another quiet period looks likely in the Atlantic basin, perhaps for as long as a few weeks. On the flip side, the Eastern Pacific remains very active, with three active tropical cyclones and two other systems that…

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Rare event for July: Four simultaneous tropical cyclones in Atlantic and East Pacific

Rare event for July: Four simultaneous tropical cyclones in Atlantic and East Pacific

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On Tuesday, a rare event occurred for the earliest time since 1997: four tropical cyclones were simultaneously active in the National Hurricane Center’s area of responsibility (Atlantic and East Pacific). Hurricane Fernanda, Tropical Storm Greg, Tropical Depression Eight-E, and Tropical Storm Don were all simultaneously active Tuesday afternoon, but Tropical Storm Don has likely degenerated into an open tropical wave. The three East Pacific storms should not be a threat to land. Tropical Storm Don likely now an open wave…

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Tropical Storm Don forms in Atlantic, East Pacific remains active

Tropical Storm Don forms in Atlantic, East Pacific remains active

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Invest 95L quickly developed into Tropical Storm Don Monday afternoon east of the Windward Islands, continuing the fast start to the 2017 Atlantic hurricane season. An Air Force Reserve Hurricane Hunter identified a small but well-defined low-level circulation. Don is the fourth named storm of the 2017 Atlantic hurricane season; the average date for the formation of the fourth named storm is not until August 23.  In the Eastern Pacific, Invest 97E has developed into Tropical Depression Seven-E, which has…

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Invest 95L in Atlantic could develop into a weak tropical cyclone near the Windward Islands

Invest 95L in Atlantic could develop into a weak tropical cyclone near the Windward Islands

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A broad area of low pressure located about 900 miles east-southeast of the Windward Islands was designated Invest 95L early Sunday morning by the National Hurricane Center (NHC), and has a medium chance of developing into a tropical depression or tropical storm this week. Forecast for 95L As of 00:00 UTC Monday, Invest 95L was centered near 10.4°N 47.8°W. Maximum sustained winds were estimated at 25 knots (30 mph) with an estimated minimum pressure of 1011 mb. 95L has become slightly better…

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