Hurricane Humberto (2007)

from Wikipedia, the free encyclopedia
Hurricane Humberto
Category 1 hurricane ( SSHWS )
Humberto near the Texan coast
Humberto near the Texan coast
Emergence September 12, 2007
resolution September 14, 2007
Peak wind
speed
90  mph (150  km / h ) (sustained for 1 minute)
Lowest air pressure 985  mbar ( hPa ; 29.1  inHg )
dead 1 direct
Property damage US $ 50 million (2007)
Affected
areas 		southeastern Texas , Louisiana
Season overview:
2007 Atlantic hurricane season

Hurricane Humberto was the eighth named tropical cyclone and third hurricane of the 2007 Atlantic hurricane season . Humberto formed in the northwestern Gulf of Mexico on September 12, 2007 and developed faster than any other known tropical cyclone in the Atlantic Basin since weather records began. The system formed very near the Texas coast and intensified rapidly . The storm hit High Island early on September 13 with winds around 150 km / h . After the storm was overland, it steadily weakened and began to dissolve over northwest Georgia on September 14 when it came under the influence of an approaching cold front. Humberto was the first hurricane to hit the United States since Hurricane Wilma during the 2005 Atlantic hurricane season . The damage caused by Humberto was relatively minor. It was about fifty million dollars .

Storm course

Railway from Humberto

Humberto was formed from the remains of a frontal trough that entered the Gulf of Mexico from Florida on September 5. The combination of a weak trough on the surface and a low in the air produced poorly developed showers and thunderstorms between western Cuba and the eastern Gulf of Mexico. The system slowly migrated west-northwest and adverse wind shear initially prevented development. By the evening of September 11th, conditions became more favorable and the next morning convection over the depression had increased. At the western end of a high pressure ridge at medium altitude, the system slowly turned northwest and developed rapidly. Radar investigations showed a loose band structure and the data from measuring buoys indicated a closed circulation on the surface. Based on these observations, the National Hurricane Center classified the system as Tropical Depression Nine, about 100 km southeast of Matagorda , Texas.

At this point it was assumed that the low pressure area would develop into a tropical storm that would reach its greatest strength with winds around 75 km / h. Within three hours of formation, the depression intensified into Tropical Storm Humberto. With his small core, Humberto continued to organize himself quickly and turned to the north-northeast. At the beginning of September 13, the radar evaluations indicated the formation of an eye . Due to a reconnaissance flight, Humberto was upgraded to a hurricane at 5:15 a.m. UTC when the center of the storm was only about 20 km off the coast of Texas . About two hours later, the storm center of the hurricane crossed the coast a few kilometers east of High Island, Texas. The hurricane at this point entertained a well-trained eye with a strong convection. A flight of the Hurricane Hunter revealed sustained winds of 140 km / h two hours after Humberto had reached the coast. (The post-analysis later found that the wind speed was slightly higher, around 150 km / h.) Already in its operational estimates of wind speeds, the National Hurricane Center found that “no tropical cyclone in the historical record has ever had this intensity in one reached a faster pace shortly before hitting the mainland ” . The path of the eye led through Port Arthur , Nederland , Port Neches , Groves and Bridge City at hurricane strength. Humberto was only the second time (after Hurricane Rita on September 24, 2005) that these cities had been hit by a hurricane. Eight hours later, when Humberto crossed the state line into Louisiana, Humberto had weakened into a tropical storm. Increasing wind shear caused a rapid weakening of the storm over land and by the evening of September 13th, Humberto was only classified as a tropical low pressure area. The last warning issued by the National Hurricane Center on Humberto indicated that the residual depth may be turning south back into the Gulf of Mexico. However, the storm continued in a northeasterly direction through the southwestern states and on September 14, Humberto began to dissolve into a nontropical low pressure area over northwest Georgia .

Preparations

Radar image of Hurricane Humberto reaching the Texan coast

When the system developed into a tropical cyclone, the NHC issued storm warnings for the coast between Port O'Connor and Cameron and advance warnings for the section between Cameron and Intracoastal City , Louisiana; after Humberto was upgraded to a tropical storm, the alert was changed to a warning. After the storm reached hurricane status, the NHC modified its warnings. The hurricane warning was for the coast between High Island, Texas and Cameron, Louisiana. Warning of an inland tropical storm has been issued for several parishs in southwest Louisiana. The Storm Prediction Center of the National Weather Service had tornado warnings for the southwestern Parishs of Louisiana. The warnings were all lifted when Humberto weakened into tropical storm. Before the storm hit land, authorities in Calcasieu Parish asked residents of low-lying or flood-prone areas to move to a safer place. A shelter was opened in Lake Charles , where 29 people appeared during the storm. Flood warnings were triggered for parts of Mississippi and Louisiana as the cyclone swept through the region.

Before the hurricane hit the coast, the Texas Governor Rick Perry arranged for government agencies to be on standby to help the areas that might be affected. He deployed 200 of the Texas Military Forces . Six UH-60 Black Hawk and two water rescue teams were deployed for rescue operations . Shortly after the cyclone formed, a crisis team was set up.

Effects

Texas

Fallen trees frequently caused power outages in southeast Texas

A few hours before the system developed into a tropical low pressure area, its outer rain bands moved over parts of the Texan coast. Heavy rain from intense thunderstorms resulted in less flooding in the days that followed as the rain bands crossed the coast; the highest amount of rainfall related to Hurricane Humberto was recorded in East Bay Bayou , Texas at 358.9 mm . The sustained winds reached their highest speed on land at 110 km / h in Sea Rim State Park , where some gusts reached 135 km / h; the National Weather Service estimates that gusts exceeded 150 mph in southwest Jefferson County and the far southeast corner of Chambers County . Before the storm was land-bound, it led to a light storm surge , which reached its highest value of 0.87 m above normal at the Rollover Pass ; the combination of storm surge and waves locally led to slight coastal erosion .

In Galveston County , Humberto destroyed ten houses and another 19 were badly damaged; around 5,000 households were cut off from the outside world by interrupted road connections. Since the ground was saturated with moisture, the strong winds uprooted many trees and tore down many power lines along the path of the storm, at least fifty high-voltage pylons could not withstand the forces of nature and fell over or were badly damaged; more than 120,000 customers in Orange County and Jefferson Counties lost power. Both counties were also affected by flooding, in Beaumont about 20 houses were under water. Streets were also flooded. The passage of the hurricane caused one death; in Bridge City a man was killed when his carport fell on him. The property damage was estimated at about fifty million US dollars.

The fuel supply was slowed by Humberto, since at least four oil refineries - the investment of Valero in Port Arthur and the facilities of ExxonMobil , Total SA and Motiva Enterprises LLC in Beaumont - were stopped because of a power failure. As a result, the price of crude oil rose to the then record level of 80.09 US dollars per barrel on September 12th . The price of natural gas futures rose eight percent before the storm, but for the most part fell again the following day.

Humberto's rainfall

Louisiana and Southeast States

Humberto passed through Louisiana as a weakening tropical storm. In the southwest, the constant wind reached its maximum value of around 60 km / h at the Calcasieu Pass . The top gust was measured at around 70 km / h, although there is an unofficial measurement of 90 km / h from Vinton . In the area, heavy rain fell, which in DeRidder added up to 210 mm. The rain caused a slight flood; the Vermilion River, for example, reached a level of 0.29 m above the high water mark in Lafayette . The storm surge in Louisiana was low; it reached a level of 0.65 m above normal at Cypremont Point . No coastal erosion was found in Louisiana.

The rain caused flooding in Beauregard Parish and some road closures in the state, including US Highway 171 and some state routes. Storm damage has been reported sporadically, particularly on the Texas border, with mostly trees falling and power lines being torn down. The latter led to a power outage for around 13,000 customers in southwest Louisiana.

After the closed circulation disintegrated, the remains of it triggered several tornadoes in South Carolina and also in North Carolina , where three counties in the middle of the state were mainly affected, but which occurred without injuries.

Because the damage from Hurricane Humberto was minor, the name has not been removed from the list of tropical cyclone names and will be reused during the 2013 Atlantic hurricane season.

Individual evidence

  1. ↑ a b c Blake: Hurricane Humberto Tropical Cyclone Report ( English , PDF; 348 kB) National Hurricane Center. 2007. Retrieved November 19, 2007.
  2. ↑ Beven: September 8 Tropical Weather Outlook ( English ) National Hurricane Center. 2007. Accessed on September 12, 2007.  ( Page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.@1@ 2Template: dead link / ftp.met.fsu.edu  
  3. ↑ Rhome: September 10 Tropical Weather Outlook . National Hurricane Center. 2007. Accessed on September 12, 2007.  ( Page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.@1@ 2Template: dead link / ftp.met.fsu.edu  
  4. ↑ Pasch & Landsea: September 11 Tropical Weather Outlook ( English ) National Hurricane Center. 2007. Accessed on September 12, 2007.  ( Page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.@1@ 2Template: dead link / ftp.met.fsu.edu  
  5. ↑ a b Mainelli: September 12 Tropical Weather Outlook ( English ) National Hurricane Center. 2007. Accessed on September 12, 2007.  ( Page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.@1@ 2Template: dead link / ftp.met.fsu.edu  
  6. ^ A b Franklin: Tropical Depression Nine Discussion One ( English ) National Hurricane Center. 2007. Retrieved September 12, 2007.
  7. ^ Franklin: Tropical Storm Humberto Public Advisory One-A ( English ) National Hurricane Center. 2007. Retrieved September 12, 2007.
  8. ^ Pasch: Tropical Storm Humberto Discussion Three ( English ) National Hurricane Center. 2007. Retrieved September 13, 2007.
  9. ↑ Mainelli & Avila: Hurricane Humberto Special Discussion Four ( English ) National Hurricane Center. 2007. Retrieved September 13, 2007.
  10. ↑ Mainelli & Avila: Hurricane Humberto Discussion Five ( English ) National Hurricane Center. 2007. Retrieved September 13, 2007.
  11. ↑ "no tropical cyclone in the historic record has ever reached this intensity at a faster rate near landfall" .
  12. ^ A b Franklin: Tropical Storm Humberto Discussion Six . National Hurricane Center. 2007. Retrieved September 13, 2007.
  13. ^ Beven: Tropical Depression Humberto Discussion Seven . National Hurricane Center. 2007. Retrieved September 13, 2007.
  14. ^ A b Hedge: Public Advisory 11 for the Remnants of Humberto . Hydrometeorological Prediction Center. 2007. Archived from the original on January 16, 2008. Info: The archive link was automatically inserted and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved September 14, 2007. @1@ 2Template: Webachiv / IABot / www.hpc.ncep.noaa.gov
  15. ^ Franklin: Tropical Depression Nine Public Advisory One . National Hurricane Center. 2007. Retrieved September 13, 2007.
  16. ^ Franklin: Tropical Storm Humberto Public Advisory Two . National Hurricane Center. 2007. Retrieved September 13, 2007.
  17. ↑ Mainelli & Avila: Hurricane Humberto Public Advisory Four . National Hurricane Center. 2007. Retrieved September 13, 2007.
  18. ↑ a b Erickson: Hurricane Humberto Local Area Statement . Lake Charles National Weather Service. 2007. Archived from the original on September 13, 2007. Retrieved September 13, 2007.
  19. ↑ a b c d e Landreneau, Shamburger, Erickson and Rua: Hurricane Humberto Post-Tropical Cyclone Report . Lake Charles, Louisiana National Weather Service. 2007. Retrieved September 20, 2007.
  20. ^ Petersen: Public Advisory 9 for the Tropical Depression Humberto . Hydrometeorological Prediction Center. 2007. Accessed on September 14, 2007.  ( Page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.@1@ 2Template: Dead Link / www.hpc.ncep.noaa.gov  
  21. ^ Office of the Governor of Texas: Texas Governor Perry Declares Three Texas Counties Disaster Areas . 2007. Archived from the original on February 23, 2012. Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved September 20, 2007. @1@ 2Template: Webachiv / IABot / www.allamericanpatriots.com
  22. ↑ a b c Blood, Overpeck, Lights: Hurricane Humberto Post-Tropical Cyclone Report . Houston, Texas National Weather Service. 2007. Retrieved September 19, 2007.
  23. ↑ a b National Weather Service: Hurricane Humberto Winds & Lowest Pressures . 2007. Archived from the original on September 5, 2008. Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved September 19, 2007. @1@ 2Template: Webachiv / IABot / www.srh.weather.gov
  24. ^ Matthew Robinson: Oil hits record over $ 80 , Reuters. September 13, 2007. 
  25. ↑ a b Myra P. Saefong: Oil futures mark first-ever close above $ 80 a barrel , USA Today . September 13, 2007. Archived from the original on February 15, 2012 Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. . @1@ 2Template: Webachiv / IABot / markets.usatoday.com 
  26. ^ National Weather Service: Hurricane Humberto Rainfall . 2007. Archived from the original on August 29, 2008. Info: The archive link was automatically inserted and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved September 20, 2007. @1@ 2Template: Webachiv / IABot / www.srh.weather.gov
  27. ^ National Weather Service: Hurricane Humberto Storm Surge and River Levels . 2007. Archived from the original on September 6, 2008. Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved September 20, 2007. @1@ 2Template: Webachiv / IABot / www.srh.weather.gov
  28. ^ Raleigh, North Carolina National Weather Service: Hurricane Humberto Special Weather Statement . 2007. Retrieved December 25, 2007.
  29. ↑ WRAL5.com: Humberto's Ghost Lashes Triangle With Winds and Rain . September 14, 2007. Retrieved December 25, 2007.

Web links

Commons : Hurricane Humberto (2007)  - Collection of images, videos and audio files