Schweizer Sturmforum

Hoi zäme

Immer wieder gut und interessant sind die vom National Climatic Data Center (NCDC von NOAA) Ende Jahr veröffentlichten Studien, Analysen und Zusammenfassungen über die herausragenden Klima- und Wetterereignisse sowohl in den USA als auch weltweit.

Significant U.S. and Global Weather Events 2005:
http://www.ncdc.noaa.gov/oa/climate/res ... vents.html

Vorläufiger Jahresbericht über das weltweite Klima 2005:
http://www.ncdc.noaa.gov/oa/climate/res ... ann05.html

Bericht über die atlantische Hurricane Saison 2005:
http://lwf.ncdc.noaa.gov/oa/climate/res ... nes05.html

Zu Lesen ist unter anderem auch, dass im letzten Jahr in den USA während der offiziellen Tornado-Saison mit lediglich 9 von durchschnittlich 37 F3-F5 Tornados ein ausgesprochen ruhiges Tornadojahr zu verzeichnen war (im Gegensatz zu den Hurricanes). Seit Mitte des letzten Jahrhunderts beobachte man zudem einen leichten Rückgang an sehr starken bis gewaltigen Tornados (F3-F5).

Viele vergangene Publikationen und Jahres- bzw. Monatsberichte (Einstiegsseite):
http://lwf.ncdc.noaa.gov/oa/reports/weather-events.html

Gruss Chrigi

PS: Hier noch eine interessante Grafik über alle Landfälle der letzten 50 Jahre (1950-2003) an der nordamerikanischen Küste: http://lwf.ncdc.noaa.gov/img/climate/se ... ur5003.jpg

Zu den Hurricanes des letzten Jahres hat Nasa ein Zeitraffervideo zusammengestellt.

Der Spiegel Artikel stammt vom Oktober, aber ich meinte diesen hat hier noch niemand gepostet.

http://www.spiegel.de/wissenschaft/erde ... 34,00.html

Hoi Zäme

Das NHC hat nun natchträglich den Tropensturm Cindy zu einem Hurrikan Kat.1 erklährt Link zu NHC. Somit wären es nun 15 Hurrikan im 2005.

Thomas Sävert hat es natürlich auch schon aktualisiert. Link zu Naturgewalten (Cindy)

Grüsse Crosley

Vielen Dank Crosley für das Update!

Für Leute, welche den obigen Link "Bericht über die atlantische Hurricane Saison 2005" noch nicht gebrowst haben, habe ich mal die durch die letztjährige Hurricane Saison aufgestellten Rekorde herauskopiert. Da kommt man echt ins Staunen... Der 2. Punkt ist natürlich bereits veraltet (es sind ja jetzt 15 Hurrikane gewesen):

2005 Records

- 28 named storms formed during the 2005 season. This is the most named storms in a single season, breaking the old record of 21 named storms set in 1933.

- 14 hurricanes formed during the 2005 season. This is the most hurricanes in a single season, breaking the old record of 12 hurricanes set in 1969.

- 7 major (Category 3 or high on the Saffir-Simpson scale) hurricanes formed during the 2005 season. This ties the season record for major hurricanes, first set in 1950.

- Three Category 5 hurricanes formed during the 2005 season (Katrina, Rita, and Wilma). This is the most Category 5 hurricanes recorded in a single season, breaking the old record of two category 5 hurricanes set in 1960 and 1961.

- Seven named storms made United States landfall during 2005 (Arlene, Cindy, Dennis, Katrina, Rita, Tammy and Wilma). This puts the 2005 season in a tie for second place for landfalling storms behind the 1916 and 2004 seasons where eight named storms made landfall.An eighth storm brushed the coast of North Carolina in 2005, but did not make an offical landfall.

- The 2005 season was the most destructive for United States landfalling storms, largely due to Hurricane Katrina. Damage estimates for the 2005 season are over $100 billion dollars.

JULY
- Five named storms formed (Cindy, Dennis, Emily, Franklin, and Gert). This is the most on record for the month.
- Two major hurricanes formed (Dennis and Emily). This is the most on record.

AUGUST
- Five named storms formed (Harvey, Irene, Jose, Katrina and Lee). Only 1990, 1995 and 2004 have had more than five named storms form during the month of August.

SEPTEMBER
- Five hurricanes formed (Maria, Nate, Ophelia, Philippe and Rita). This ties 1955, 1969, 1981, 1998 and 2000 for the most hurricanes to form during the month of September.

OCTOBER
- Six named storms formed (Stan, Tammy, Vince, Wilma, Alpha and Beta). This ties 1950 for the most named storm formations during the month of October.
- Four hurricanes formed (Stan, Vince, Wilma and Beta). Only 1950 had more hurricanes develop during the month of October.
- Two intense hurricanes formed (Wilma and Beta). This ties 1950, 1961, 1964 and 1995 for the most intense hurricanes to form during the month of October.

NOVEMBER
- no records were set in November, though it was active compared to average

DECEMBER
- Hurricane Epsilon was only the 6th hurricane to ever exist in the month of December.

INDIVIDUAL STORM RECORDS
- Dennis became the most intense hurricane on record before August when a central pressure of 930 mb was recorded.
- Emily eclipsed the record previously set by Dennis for lowest pressure recorded for a hurricane before August when its central pressure reached 929 mb.
- Katrina's central pressure dropped to 902mb. At the time, it was the fourth lowest pressure ever measured in the Atlantic basin.
- Katrina's central pressure at landfall was 920 mb. This is the third lowest pressure recorded at landfall behind the Florida Keys storm of 1935 - 892mb and Hurricane Camille of 1969 - 909 mb.
- Katrina became the most destructive storm on record with an estimated $50 billion dollars in insured damage. This shatters the old record of approximately $25 billion dollars (normalized to 2005 dollars) in insured damage set by Hurricane Andrew (1992).
- Rita's central pressure dropped to 897 mb. At the time, it was the third lowest pressure ever measured in the Atlantic basin.
- Vince was the furthest north and east that a storm has ever developed in the Atlantic basin.
- Vince was the first tropical cyclone in recorded history to strike the Iberian Peninsula.
- Wilma reached Category 5 intensity. Wilma was the third Category 5 of the season. This is the first time that three Category 5 storms have formed in one year, breaking the record of two Category 5 storms set in 1960 and equaled in 1961.
- Wilma's central pressure dropped to 882mb. It was the lowest pressure ever measured in the Atlantic basin, eclipsing the old record of 888 mb set by Hurricane Gilbert (1988).
- Alpha became the 22nd named storm of the 2005 season. This breaks the old record of 21 named storms set in 1933.
- Beta became the 13th hurricane of the 2005 season. This breaks the old record of 12 hurricanes set in 1969.

NCDC thanks William Gray and Colorado State University for collating many of these records.

Quelle: http://lwf.ncdc.noaa.gov/oa/climate/res ... nes05.html

Unglaublich was? Und diese Rekorde wurden allesamt innerhalb einer einzigen Hurricane Saison aufgestellt!

Gruss Chrigi
- Editiert von Christian Matthys am 14.04.2006, 23:05 -

Die folgenden fünf Hurricanes (alle von der letztjährigen Hurricane Saison) werden definitiv in die Geschichte eingehen. Sie werden nämlich nie mehr für die Bezeichnung von Hurricanes herhalten müssen. Qualifiziert dafür haben sie sich aufgrund ihrer enormen Zerstörungsentfaltung. Die Namens"pensionierung" hat vor allem historische, wissenschaftliche und rechtliche Gründe, soll aber auch die Betroffenen davor bewahren, immer wieder aufs Neue an die schrecklichen Erlebnisse erinnert zu werden.

Hier also die fünf besagten Stürme:

Dennis (wird ersetzt durch Don), Katrina (wird ersetzt durch Katia), Rita (wird ersetzt durch Rina), Stan (wird ersetzt durch Sean) and Wilma (wird ersetzt durch Whitney).

Eine Zusammenfassung dieser fünf Stürme in Englisch:

•Hurricane Dennis crossed Cuba in early July with winds of about 140 mph. It made landfall on Santa Rosa Island, Florida, on July 10 with winds estimated at 120 mph. At least 54 deaths have been attributed to Dennis, including 15 in the United States.

•Katrina is considered one of the deadliest and costliest hurricanes in U.S. history, with damages exceeding $50 billion and about 1,300 deaths (In 1900, a hurricane in Galveston, Texas, killed 8,000, and in 1928, a hurricane hit Lake Okeechobee in Florida and killed 1,836, according to the NOAA). Katrina first struck near Miami, Florida, on August 24 before making landfall in Buras, Louisiana, five days later with top winds of 125 mph.

•Rita struck southwestern Louisiana near the Texas border with winds of 115 mph on September 24. It had weakened significantly since being measured as a Category 5, with 180 mph winds, as it made its way between Cuba and the Florida Keys to the Louisiana coast. Nonetheless, its storm surge -- joined by heavy wind, rain and tornadoes -- left a swath of destruction from east Texas to Alabama.

•Stan dumped torrential rains on Central America and Mexico's Yucatan Peninsula, killing as many as 2,000 people. Stan was a tropical storm when it hit the peninsula, but had escalated into a Category 1 by the time it made landfall October 4 about 90 miles southeast of Veracruz, Mexico.

•Wilma turned into a Category 5 storm, with 185 mph winds, over the Caribbean Sea, registering the lowest-ever recorded central pressure of any storm in the Atlantic. Though it dwindled to a Category 4, it still devastated the Yucatan Peninsula and later raced ashore October 24 in Cape Romano, Florida, with winds estimated at 120 mph.


Ein Sprecher der amerikanischen National Oceanic and Athmospheric Administration (NOAA) meint:
"Das Ausserkraftsetzen von nicht weniger als fünf Sturmnamen spricht für das Extrem der Hurricane Saison 2005, in welcher insgesamt 27 Stürme benannt wurden, 15 davon als Hurricanes. Noch nie wurden fünf Sturmnamen aus einer einzigen Saison aus dem Verkehr gezogen.
Seit 1953, als tropische Wirbelstürme erstmals mit Spitznamen versehen worden sind, wurden 67 Sturmnamen neu vergeben, 13 Prozent davon in den letzten beiden Saisons."

Die Namen welche für die diesjährige Saison zur Verfügung stehen, lauten wie folgt:
•Alberto
•Beryl
•Chris
•Debby
•Ernesto
•Florence
•Gordon
•Helene
•Isaac
•Joyce
•Kirk
•Leslie
•Michael
•Nadine
•Oscar
•Patty
•Rafael
•Sandy
•Tony
•Valerie
•William

Quelle: CNN

Gruss Chrigi

Das NHC stufte nun ein weiteres System von 2005 zu einem tropischen Sturm herauf:
http://www.nhc.noaa.gov/pdf/TCR-AL31200 ... _Storm.pdf

Somit waren es also insgesamt 28 tropische Stürme, davon 15 Hurricanes.

Weitere Infos zur aussergewöhnlichen Hurricane Saison 2005: http://www.naturgewalten.de/hurr05.htm