Cyclonenseizoen Atlantische Oceaan 2017
Re: Cyclonenseizoen Atlantische Oceaan 2017
Hurricane Jose maakt momenteel een cirkelbeweging en beweegt uiteindelijk volgens ECMWF niet naar de USA. Ook wordt het rustig in de tropische Atlantische Oceaan de komende 2 weken.
https://twitter.com/MJVentrice
https://twitter.com/MJVentrice
Re: Cyclonenseizoen Atlantische Oceaan 2017
Nog een keer Irma. In diverse opzichten was de dame een bijzondere hurricane:. ( bron weatherunderground)
Some of the worst impacts of Hurricane Irma were still coming to light on Tuesday, a day after the National Weather Service wrote its final advisory on the storm. Irma’s unique place in weather history is already clear, though. Phil Klotzbach (Colorado State University) released a compilation Monday night of the many records set during Irma’s long, eventful life as a tropical cyclone. Here are some highlights:
Strongest Atlantic hurricane outside the Gulf of Mexico and Caribbean. Irma set this record in two ways: top sustained winds (185 mph, beating the 175 mph from Hurricane Andrew) and lowest central pressure (914 mb, just ahead of the 915 mb estimated for Hurricane Isabel in 2003). The only hurricane recorded anywhere in the Atlantic with stronger sustained winds than Irma was Hurricane Allen (1980), at 190 mph.
Longevity as a behemoth. Irma racked up a 37-hour stretch with top winds of 185 mph. This beats the global record of 24 hours at or above 185 mph set by Typhoon Haiyan in 2013. Irma spent a total of 3.25 days at Category 5 strength, most of it in a long stretch from Sept. 5 to 8. This puts Irma in a tie with the 1932 Cuba hurricane as the Atlantic storm with the most hours at Cat 5 strength. Before Irma, no Atlantic storm in the satellite era (1966-present) had racked up three consecutive days as a Cat 5. Only Hurricane Ivan (2004) spent more time as a major hurricane (Cat 3/4/5) than Irma’s 8.5 days.
Strength at landfall. No hurricane as strong as Irma had ever been confirmed in the Leeward Islands region (defined by Klotzbach as 15 - 19°N and 60 – 65°W). The previous record-holders were the Okeechobee Hurricane of 1928 and Hurricane David (1979). Both of these hit the Leeward region with winds of 160 mph, and just like Irma, both hurricanes went on to strike Florida. Irma’s landfall on the north coast of Cuba made it the first Cat 5 to strike the nation since the Cuba Hurricane of 1924. Fortunately, Cuba was spared the more intense north side of Irma. From the Juxtaposition Department: the paths of Irma and Hurricane Wilma (2005)—the last major hurricane to strike Florida before Irma—coincided over Marco Island, Florida. Both storms made landfall at 25.9°N, 81.7°F as Category 3 hurricanes. Another path quirk occurred in the open Atlantic this month: on September 8, near 16.9°N and 59.2°W, Hurricane Jose (Cat 4 at the time) passed over the track carved out by Hurricane Irma as a Cat 5 storm less than three days earlier. "I'm not sure if that's a record for two major hurricanes, but it's got to be close," said Klotzbach in an email.
An ace at ACE. Accumulated cyclone energy (ACE) is a function of a hurricane’s peak wind speeds and its longevity. It’s most relevant in the satellite era, where we have more consistent and frequent estimates of top winds. Irma produced more accumulated cyclone energy (ACE) in a 24-hour period than any other Atlantic storm on record, beating Allen (1980). Irma’s total 67.5 units of ACE puts it within the range of 61-111 units cited by NOAA as being near-normal for an entire Atlantic hurricane season (!). It's also the second highest ACE for any Atlantic hurricane in the satellite era, once again trailing only Ivan (2004). Note: all else being equal, a larger hurricane will pack more energy than a smaller one, but wind-field size hasn’t been incorporated in the definition of ACE, since the size data were not included in official databases until fairly recently.
Some of the worst impacts of Hurricane Irma were still coming to light on Tuesday, a day after the National Weather Service wrote its final advisory on the storm. Irma’s unique place in weather history is already clear, though. Phil Klotzbach (Colorado State University) released a compilation Monday night of the many records set during Irma’s long, eventful life as a tropical cyclone. Here are some highlights:
Strongest Atlantic hurricane outside the Gulf of Mexico and Caribbean. Irma set this record in two ways: top sustained winds (185 mph, beating the 175 mph from Hurricane Andrew) and lowest central pressure (914 mb, just ahead of the 915 mb estimated for Hurricane Isabel in 2003). The only hurricane recorded anywhere in the Atlantic with stronger sustained winds than Irma was Hurricane Allen (1980), at 190 mph.
Longevity as a behemoth. Irma racked up a 37-hour stretch with top winds of 185 mph. This beats the global record of 24 hours at or above 185 mph set by Typhoon Haiyan in 2013. Irma spent a total of 3.25 days at Category 5 strength, most of it in a long stretch from Sept. 5 to 8. This puts Irma in a tie with the 1932 Cuba hurricane as the Atlantic storm with the most hours at Cat 5 strength. Before Irma, no Atlantic storm in the satellite era (1966-present) had racked up three consecutive days as a Cat 5. Only Hurricane Ivan (2004) spent more time as a major hurricane (Cat 3/4/5) than Irma’s 8.5 days.
Strength at landfall. No hurricane as strong as Irma had ever been confirmed in the Leeward Islands region (defined by Klotzbach as 15 - 19°N and 60 – 65°W). The previous record-holders were the Okeechobee Hurricane of 1928 and Hurricane David (1979). Both of these hit the Leeward region with winds of 160 mph, and just like Irma, both hurricanes went on to strike Florida. Irma’s landfall on the north coast of Cuba made it the first Cat 5 to strike the nation since the Cuba Hurricane of 1924. Fortunately, Cuba was spared the more intense north side of Irma. From the Juxtaposition Department: the paths of Irma and Hurricane Wilma (2005)—the last major hurricane to strike Florida before Irma—coincided over Marco Island, Florida. Both storms made landfall at 25.9°N, 81.7°F as Category 3 hurricanes. Another path quirk occurred in the open Atlantic this month: on September 8, near 16.9°N and 59.2°W, Hurricane Jose (Cat 4 at the time) passed over the track carved out by Hurricane Irma as a Cat 5 storm less than three days earlier. "I'm not sure if that's a record for two major hurricanes, but it's got to be close," said Klotzbach in an email.
An ace at ACE. Accumulated cyclone energy (ACE) is a function of a hurricane’s peak wind speeds and its longevity. It’s most relevant in the satellite era, where we have more consistent and frequent estimates of top winds. Irma produced more accumulated cyclone energy (ACE) in a 24-hour period than any other Atlantic storm on record, beating Allen (1980). Irma’s total 67.5 units of ACE puts it within the range of 61-111 units cited by NOAA as being near-normal for an entire Atlantic hurricane season (!). It's also the second highest ACE for any Atlantic hurricane in the satellite era, once again trailing only Ivan (2004). Note: all else being equal, a larger hurricane will pack more energy than a smaller one, but wind-field size hasn’t been incorporated in the definition of ACE, since the size data were not included in official databases until fairly recently.
Re: Cyclonenseizoen Atlantische Oceaan 2017
Irma is inderdaad een bijzondere hurricane. De invloed van Irma is nog niet verdwenen. Irma laat een duidelijk spoor in haar baan na in de zeewatertemperaturen en op het gepasseerde land. https://interactives.ap.org/irma-before-after-images/?utm_campaign=SocialFlow&utm_source=Twitter&utm_medium=AP_Interactive Ook Hurricane Jose geeft door de langzame verplaatsing een duidelijke afkoeling van het zeeoppervlak te zien.
Laatst gewijzigd door Karel op 14-09-2017 17:22, 1 keer totaal gewijzigd.
Re: Cyclonenseizoen Atlantische Oceaan 2017
Tropische storm Lee is een feit. Verder is de tropische depressie 15 ontstaan.veel activiteit in de Atlantische Oceaan
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- Lid geworden op: 31-12-1977
Re: Cyclonenseizoen Atlantische Oceaan 2017
Eerste helft van september verliep niet eerder met zo'n hoge activiteit. http://twitter.com/philklotzbach/status/909060588877234176
http://twitter.com/philklotzbach/status/908763670607310848
http://twitter.com/philklotzbach/status/908763670607310848
Laatst gewijzigd door Sebastiaan op 16-09-2017 19:43, 1 keer totaal gewijzigd.
Re: Cyclonenseizoen Atlantische Oceaan 2017
Tropische depressie 15 is nu tropische storm Maria. De potentie om een major hurricane te worden dus 3 of meer
Re: Cyclonenseizoen Atlantische Oceaan 2017
Hurricane Maria cat4/5 940hPa zal morgen SanJuan Puerto Rico usa met 4 miljoen inwoners rechtstreeks treffen.http://edition.cnn.com/2017/09/18/americas/atlantic-storms-maria-jose-lee/index.html
Re: Cyclonenseizoen Atlantische Oceaan 2017
Hurricane Maria is vanmiddag bij de tocht over Puerto Rico verzwakt tot cat 3 en het oog ligt momenteel bij de noordwestpunt van Puerto Rico ( 18.6°N 67.0°W),
De luchtdruk in de kern is 959hPa met ca 100 kts wind. De verdere koers is noordwest. Maria trekt ten noorden van de Dominicaanse Republiek als Major Hurricane verder weg richting de open Atlantische Oceaan.
De luchtdruk in de kern is 959hPa met ca 100 kts wind. De verdere koers is noordwest. Maria trekt ten noorden van de Dominicaanse Republiek als Major Hurricane verder weg richting de open Atlantische Oceaan.
Re: Cyclonenseizoen Atlantische Oceaan 2017
Maria heeft flinke afkoeling van het oppervlak van de Atlantische Oceaan ten oosten van de USA veroorzaakt. Het afgelegde pad is goed te zien. Afwachten of deze afkoeling blijvend is.
Van Lee (een hurricane met een verbazend kleine omvang van slechts iets meer dan 200 km en een luchtdruk van 966hPa in de kern) is dat pad niet goed te zien. Beide hurricanes worden komend weekend opgenomen in de straalstroom op de Atlantische Oceaan. Afwachten wat dat voor invloed op de circulatie gaat hebben.
Van Lee (een hurricane met een verbazend kleine omvang van slechts iets meer dan 200 km en een luchtdruk van 966hPa in de kern) is dat pad niet goed te zien. Beide hurricanes worden komend weekend opgenomen in de straalstroom op de Atlantische Oceaan. Afwachten wat dat voor invloed op de circulatie gaat hebben.