National Hurricane Center

What is National Hurricane Center known for?


low+causing

to race northward, affecting the Central United States along its path, and was last distinguishable in the eastern Great Lakes region on August 31. On August 31, Katrina was absorbed by a frontal boundary and became a powerful extratropical low, causing 1.97–6.69 inches (50–170 mm) of rain in 12 hours, as well as gale-force wind gusts from 31 to 61 mph (50 to 98 km h) in southeastern Quebec and northern New Brunswick. In the region


small low

-P 2007052716.ABPZ20 On May 28, a small low pressure area developed within the system, and it gradually became better organized as it drifted northward. Banding features (Tropical cyclone#Physical structure) developed

crossed Central America and entered the Eastern Pacific Ocean, where it later spawned a small low pressure area. Though Wind shear initially prevented tropical cyclone development (tropical cyclogenesis), convection eventually consolidated around the center. At 1200 UTC on July 31, the National Hurricane Center designated the system as Tropical Depression Eight-E, while located 1,060 miles (1,700 km) southwest of the southern tip of Baja California

; A tropical wave emerged from the coast of Africa on July 16 and traveled westward across the Atlantic Ocean and Caribbean Sea. By July 25, the system crossed Central America and entered the Eastern Pacific Ocean, where it later spawned a small low pressure area. Though Wind shear initially prevented tropical cyclone development (tropical cyclogenesis), convection eventually consolidated around the center. At 1200&


bringing+significant

1997 The HPC issues storm summaries on storm systems bringing significant rainfall and snowfall to portions of the United States. Advisories are also issued for tropical cyclones which have moved inland, weakened to tropical depression strength, and are no longer the responsibility of the National Hurricane Center. The HPC also acts as the backup office to the National Hurricane Center in the event of a complete communications failure. NMC changed its name to NCEP, the National Centers for Environmental Prediction on October 1, 1995. The HPC become a subunit of NCEP, as did a number of other national centers such as the Climate Prediction Center, Environmental Modeling Center, National Hurricane Center, Ocean Prediction Center, Storm Prediction Center, Aviation Weather Center, NCEP Central Operations, and the Space Environment Center. His 1941 novel ''Storm (Storm (novel))'', featuring as its protagonist a Pacific storm called "Maria," prompted the National Weather Service to use personal names to designate storms Dave Roberts, a forecaster for the National Hurricane Center (w:National Hurricane Center) (NHC) said "There's a good chance this system could be a Category 5 in the next 24 hours". The storm is expected to move northwestward, threatening the Baja California (w:Baja California) peninsula over coming days. "There's no watches or warnings in effect, but we would like residents and tourists in the area to monitor the progress of the storm", said Robbie Berg, another hurricane specialist. There are conflicting reports as to whether Hurricane Ida (w:Hurricane Ida (2009)) is responsible for the flooding, with a spokesman for the United States National Hurricane Center (NHC) (w:National Hurricane Center) in Florida (w:Florida) attributing the rain to a separate, low pressure system.


organizing early

: www.nhc.noaa.gov archive text TWOAT 2004 TWOAT.200408231502 Thunderstorms associated with the wave finally began organizing early on August 24, and the system became a tropical depression (Tropical Cyclone) that evening. ref name "

Thunderstorms associated with the wave finally began organizing early on August 24, and the system became a tropical depression (Tropical Cyclone) that evening.

.discus.003.shtml? it moved westward for several days, remaining disorganized despite favorable conditions. Thunderstorms associated with the wave finally began organizing early on August 24,


highly unusual

of time". Eliot Kleinberg, Mary McLachlin (2004). Region starts getting ready. ''Palm Beach Post''. Retrieved on 2009-04-16. Canals were also drained on the same day. Unusual path Hurricane Joan's path through the southern Caribbean in late October was highly unusual. Most October storms in the Atlantic gravitate


extremely powerful

Laboratory While tropical cyclones can produce extremely powerful winds and torrential rain, they are also able to produce high waves and damaging storm surge. Dave Roberts, a forecaster for the National Hurricane Center (w:National Hurricane Center) (NHC) said "There's a good chance this system could be a Category 5 in the next 24 hours". The storm is expected to move northwestward, threatening the Baja California (w:Baja California) peninsula over coming days. "There's no watches or warnings in effect, but we would like residents and tourists in the area to monitor the progress of the storm", said Robbie Berg, another hurricane specialist. There are conflicting reports as to whether Hurricane Ida (w:Hurricane Ida (2009)) is responsible for the flooding, with a spokesman for the United States National Hurricane Center (NHC) (w:National Hurricane Center) in Florida (w:Florida) attributing the rain to a separate, low pressure system.


large low

suggesting an impact on the islands. A large tropical wave, which eventually became Erika, moved off the coast of Africa on August 31. Shortly after leaving the coast, it displayed of a large low-level circulation (Atmospheric circulation), though as it tracked westward, the circulation failed to contract significantly. It slowly organized, and by September 3 the convection within the circulation had

: web.archive.org web 20061014101629 http: www.redcross.org article 0,1072,0_332_232,00.html archivedate 2006-10-14 Prior to the formation of Tropical Depression Fourteen, the southern Caribbean Sea was under a large area of low pressure (low pressure area). On October 30, satellite imagery showed that the area of pressure was beginning to form into a tropical disturbance (tropical wave). A reconnaissance


producing+strong

was producing strong westerly wind shear, which would cause Allen to possibly encounter unfavorable conditions within 72 hours. Although slower forward movement was anticipated,

storm_wallets atlantic atl1980-prelim allen prelim02.gif title Hurricane Allen Tropical Cyclone Report Page 2 author National Hurricane Center year 1980 publisher National Oceanic and Atmospheric Administration accessdate 2011-05-13 The National Hurricane Center noted that conditions appeared favorable for further intensification. However, it was also noted that a large cold-low north of Puerto Rico was producing strong westerly wind shear, which would cause Allen to possibly

Tropical Cyclone Report Page 2 author National Hurricane Center year 1980 publisher National Oceanic and Atmospheric Administration accessdate 2011-05-13 The National Hurricane Center noted that conditions appeared favorable for further intensification. However, it was also noted that a large cold-low north of Puerto Rico was producing strong westerly wind shear, which would cause Allen to possibly encounter unfavorable conditions within 72 hours.


work annual

: www.usno.navy.mil NOOC nmfc-ph RSS jtwc atcr 1972atcr pdf annexa.pdf publisher Joint Typhoon Warning Center title Annex A Summary of Tropical Cyclones in the Eastern North Pacific work Annual Typhoon Report 1972 accessdate 2009-08-09 Tropical Storm Gamma originated out of a tropical wave that moved off the western coast of Africa on November 3. For a late-season tropical wave, the system kept an unusually high


title speed

on board. The ship was again forced to relocate, and sailed from Cuba towards the Gulf of Mexico, and returned to the Keys three days later. The filming of the evacuation sequence continued and took place over the next two weeks. Approximately 30 hoses and the ship's fire sprinkler system were used to simulate heavy rainfall in the scene.

National Hurricane Center

The '''National Hurricane Center''' ('''NHC'''), located at Florida International University in Miami, Florida, is the division of the United States' National Weather Service responsible for tracking and predicting weather systems within the tropics between the Prime Meridian and the 140th meridian west poleward to the 30th parallel north in the northeast Pacific ocean and the 31st parallel north in the northern Atlantic ocean. Its Tropical Analysis and Forecast Branch (TAFB) routinely issues marine forecasts, in the form of graphics and high seas forecasts, for this area year round, with the Ocean Prediction Center having backup responsibility for this unit. The Technology and Science Branch (TSB) provides technical support for the center, which includes new infusions of technology from abroad. The Chief, Aerial Reconnaissance Coordination, All Hurricanes (CARCAH) unit tasks planes, for research and operational purposes, to tropical cyclones during the Atlantic hurricane season and significant weather events, including snow storms, during winter and spring. Research conducted to improve operational forecasts is done through the Hurricane Forecast Improvement Project (HFIP) and Joint Hurricane Test Bed (JHT) initiatives.

During the Atlantic (Atlantic hurricane season) and northeast Pacific hurricane seasons, the Hurricane Specialists Unit (HSU) issues routine tropical weather outlooks for the northeast Pacific and northern Atlantic oceans. When tropical storm or hurricane conditions are expected within 48 hours, the center issues the appropriate watches and warnings via the news media and National Oceanic and Atmospheric Administration (NOAA) Weather Radio (NOAA Weather Radio). Although the NHC is an agency of the United States, the World Meteorological Organization has designated it as Regional Specialized Meteorological Center for the North Atlantic and eastern Pacific, making it the central clearinghouse for all tropical cyclone forecasts and observations occurring in these areas. If the center loses power or becomes incapacitated in some manner, the Central Pacific Hurricane Center backs tropical cyclone advisories and tropical weather outlooks for the northeast Pacific ocean while the Weather Prediction Center backs up tropical cyclone advisories and tropical weather outlooks for the north Atlantic ocean.

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