Tropical Storm Pink (2006)

from Wikipedia, the free encyclopedia
Tropical storm pink
Tropical Storm ( SSHWS )
Tropical Storm Rosa on November 9th
Tropical Storm Rosa on November 9th
Emergence November 8, 2006
resolution November 10, 2006
Peak wind
speed
40  mph (65  km / h ) (sustained for 1 minute)
Lowest air pressure 1002  mbar ( hPa ; 29.6  inHg )
dead 0
Property damage 0 US $ (2006)
Affected
areas
at sea
Season overview:
2006 Pacific hurricane season

Tropical Storm Rosa was the first tropical storm to form in the eastern Pacific Ocean since November 2000 . Pink was the 23rd tropical system and 17th named storm of the 2006 Pacific hurricane season , developing from a tropical wave that broke off the coast of Africa on October 22nd. The wave crossed the Atlantic Ocean and reached the Pacific on November 3rd . The thunderstorm activity increased and on November 8th the system was classified as Tropical Depression Nineteen-E. After the organization and intensity of the system fluctuated somewhat, it was upgraded to Tropical Storm Rosa on November 9th. Continuous wind shear prevented further intensification and on November 10th the storm quickly weakened again to a low pressure area.

Storm course

Train track of Rosa

Rosa's origins lay in a tropical wave that broke off the coast of West Africa on October 22nd . The weak system moved westward across the Atlantic and the Caribbean . On November 3, the wave crossed Central America and reached the eastern North Pacific. Showers and thunderstorms increased and on November 5th an extensive low pressure area formed a few hundred kilometers south of the Gulf of Tehuantepec . The convection organized itself increasingly better on November 7th and early on the following day, November 8th, the thunderstorm activity in the vicinity of the low pressure area had increased significantly. At 6:00 a.m. UTC on November 8, a tropical depression formed about 700 km south of Manzanillo , Mexico .

Due to its location in a zone with favorable wind conditions at altitude, the low pressure area began to intensify and six hours after the formation of the tropical low, the satellite images indicated that the intensity of the system was approaching the strength of a tropical storm. However, later analysis indicated that the estimated wind speeds were probably inaccurate because the data was skewed by heavy rain. Later in the day the convection of the system disintegrated and increased wind shear shifted most of the convective activity to the eastern side of the circulation. At the same time, the structure of the cyclone near the surface was also disorganized. These conditions did not last very long, and at 00:00 UTC a new focus of convection formed quite close to the suspected center of circulation. In addition, a band structure formed in the north-eastern quadrant of the cyclone. The storm migrated northwest - as it did throughout its existence - and crossed a sub-tropical ridge through a weak zone . Although the system was continuously exposed to wind shear, the depression was upgraded to Tropical Storm Pink on November 9 at around 6:00 a.m. UTC. At this point the constant wind speed was 65 km / h.

The persistent unfavorable wind shear prevented further intensification and the organization of the system declined again shortly after the storm was named. Pink was a tropical storm for only eighteen hours and was downgraded to tropical depression on November 10 at 0:00 UTC. Shortly thereafter, in Discussion Number 9 , Stacy Stewart of the National Hurricane Center Meteorology stated:

The tropical depression in Rosa is rapidly losing its organization and is no longer a tropical cyclone. Nevertheless ... in the event that a new source of convection breaks out near the center ... the system will be maintained as a tropical system for the period of this weather warning. "

As the day progressed, the low pressure area disintegrated into an open trough .

Weather records and effects

Pink was the first tropical storm to form in the eastern North Pacific in November since 2000. It was also the first time that a tropical depression had formed in November since Tropical Depression Sixteen-E in 2002 . Because the storm was far from land, no property damage or loss of life was reported; Shipping was also unhindered by Rosa and no storm warnings were issued. As a result, the name has not been removed from the list of tropical cyclone names and Rosa is on the list of names for the 2012 Pacific hurricane season .

Individual evidence

  1. a b c d e f g Daniel P. Brown: Tropical Storm Rosa Tropical Cyclone Report ( English , PDF; 103 kB) National Hurricane Center . 2006. Retrieved November 7, 2008.
  2. Stewart: Tropical Depression Nineteen-E Discussion Number 1 ( English ) National Hurricane Center. 2006. Retrieved November 7, 2008.
  3. ^ Blake: Tropical Depression Nineteen-E Discussion Number 3 ( English ) National Hurricane Center. 2006. Retrieved November 7, 2008.
  4. Brown: Tropical Depression Nineteen-E Discussion Number 4 ( English ) National Hurricane Center. 2006. Retrieved November 7, 2008.
  5. Stewart: Tropical Depression Nineteen-E Discussion Number 5 ( English ) National Hurricane Center. 2006. Retrieved November 7, 2008.
  6. Rhome: Tropical Storm Rosa Discussion Number 7 ( English ) National Hurricane Center. 2008. Retrieved November 7, 2008.
  7. Stacy Stewart: Tropical Storm Rosa Discussion Number 9 ( English ) National Hurricane Center. 2006. Retrieved November 7, 2008: “ Tropical Depression Rosa is rapidly becoming less organized and may not even be a tropical cyclone any longer. However ... just in case another burst of convection fires off near the center ... the system is being maintained as a tropical entity for this advisory. "
  8. Worldwide Tropical Cyclone Names ( English ) National Hurricane Center. 2007. Retrieved November 7, 2008.

Web links

Commons : Pacific Hurricane Season 2006  - Album with pictures, videos and audio files