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Encyclopedia > Subtropical Storm Andrea (2007)
This article or section contains information about an ongoing meteorological event or phenomenon.
Information may undergo major changes as events occur.
Subtropical Storm Andrea SS
Current storm status
Subtropical storm (1-min mean)
As of: 2 a.m. EDT May 10 (0600 UTC)
Location: 30.5°N 79.8°W ± 30 nm
About 135 miles (215 km) SE of Savannah, GA
About 115 miles (185 km) NNE of Daytona Beach, FL
Winds: 40 knots (45 mph, 75 km/h) sustained (1-min mean)
Pressure: 1004 mbar (29.65 inHg)
Movement: Stationary
See more detailed information.

Subtropical Storm Andrea is the first named storm and first subtropical cyclone of the 2007 Atlantic hurricane season. It developed out of a previously non-tropical low on May 9 about 150 miles (240 km) northeast of Daytona Beach, Florida, three weeks before the start of the season. The storm produced rough surf along the coastline from Florida to North Carolina, causing beach erosion and some damage. Image File history File links Lightning_NOAA.jpg‎ Description: Multiple cloud-to-ground and cloud-to-cloud lightning strokes during night-time. ... Image File history File links Current_event_marker. ... Cyclone Catarina, a rare South Atlantic tropical cyclone viewed from the International Space Station on March 26, 2004 Hurricane and Typhoon redirect here. ... Cyclone Catarina, a rare South Atlantic tropical cyclone viewed from the International Space Station on March 26, 2004 Hurricane and Typhoon redirect here. ... The Saffir-Simpson Hurricane Scale is a scale classifying most Western Hemisphere tropical cyclones that exceed the levels of tropical depression and tropical storm and thereby become hurricanes; the categories it divides hurricanes into are distinguished by the intensities of their respective sustained winds. ... Eastern Daylight Time or EDT is equal to: In North America, Eastern Standard Time + 1, or UTC − 4 hours. ... May 10 is the 130th day of the year in the Gregorian calendar (131st in leap years). ... ... Latitude, usually denoted symbolically by the Greek letter phi, , gives the location of a place on Earth north or south of the equator. ... Longitude, sometimes denoted by the Greek letter λ (lambda),[1][2] describes the location of a place on Earth east or west of a north-south line called the Prime Meridian. ... Southeast is the ordinal direction halfway between south and east. ... Coordinates: County Chatham  - Mayor Otis S. Johnson Area    - City 202. ... ESE also stands for Extensible Storage Engine. ... Daytona Beach in 2005 Daytona Beach is a city in Volusia County, Florida, USA. As of 2004, the population estimates recorded by the U.S. Census Bureau is 64,422. ... A millibar (mbar, also mb) is 1/1000th of a bar, a unit for measurement of pressure. ... Inches of mercury or inHg is a non SI unit for pressure. ... Subtropical Storm Gustav in 2002 A subtropical cyclone is a weather system that has some characteristics of a tropical cyclone and some characteristics of an extratropical cyclone. ... The 2007 Atlantic hurricane season will be an ongoing event in the annual cycle of tropical cyclone formation. ... May 9 is the 129th day of the year in the Gregorian calendar (130th in leap years). ... Daytona Beach in 2005 Daytona Beach is a city in Volusia County, Florida, USA. As of 2004, the population estimates recorded by the U.S. Census Bureau is 64,422. ... Official language(s) English Capital Tallahassee Largest city Jacksonville Largest metro area Miami Area  Ranked 22nd  - Total 65,795[1] sq mi (170,304[1] km²)  - Width 361 miles (582 km)  - Length 447 miles (721 km)  - % water 17. ... Official language(s) English Capital Raleigh Largest city Charlotte Area  Ranked 28th  - Total 53,865 sq mi (139,509 km²)  - Width 150 miles (240 km)  - Length 560[1] miles (901 km)  - % water 9. ...


Andrea is the first Atlantic named storm in May since Tropical Storm Arlene in 1981. Additionally, the storm is the first pre-season storm to develop since Tropical Storm Ana in April 2003.[1] First storm formed: May 6, 1981 Last storm dissipated: November 17, 1981 Strongest storm: Harvey - 946 mbar (27. ... 2 B C D 6 7 E 9 F G H I 14 J K L M N O P Categories: | | | | ...

Contents

Storm history

In early May, a trough persisted across the western Atlantic Ocean in association with a back door cold front, which is a cold front that drifts southwestward due to a ridge to its north. For several days, hurricane forecast models had anticipated for the trough to evolve into a closed low pressure area,[2] and on May 6 a frontal low with a large and well-defined circulation developed about 90 miles (140 km) east of Cape Hatteras. The low maintained scattered convection around its circulation, and in conjunction with the strong high pressure to its north a very tight pressure gradient produced gale force winds near the coastline.[3] The low tracked south-southwestward[3] and intensified, though due to a lack of deep moisture its corresponding convection was minimal and scattered.[4] A trough is an elongated region of relatively low atmospheric pressure, often associated with fronts. ... In meteorology, a weather front is a boundary between two air masses with differing characteristics (e. ... A ridge is an elongated region of relatively high atmospheric pressure, the opposite of a trough. ... Hurricane Epsilon defied and frustrated forecasters by persisting in a hostile environment for a remarkably long time A tropical cyclone prediction model is a computer program that uses meteorological data to predict the motion and intensity of tropical cyclones. ... A large low-pressure system swirls off the southwestern coast of Iceland, illustrating the maxim that nature abhors a vacuum. ... May 6 is the 126th day of the year in the Gregorian calendar (127th in leap years). ... An aerial view of the Cape Hatteras Lighthouse (before its relocation in 1999) Cape Hatteras from space, October 1989 Cape Hatteras is a cape on the coast of North Carolina. ... Pressure Gradient is the change in pressure over a distance. ...


The National Hurricane Center first mentioned the possibility of tropical cyclogenesis on May 8 while about 230 miles (370 km) east-southeast of the South Carolina coastline. Its associated convection had steadily increased as it tracked slowly westward at 5—10 mph (8—16 km/h).[5] The system changed little throughout the day,[6] though by the following morning hurricane specialists indicated the low was acquiring subtropical characteristics.[7] Early on May 9, a Hurricane Hunters flight into the system revealed winds of 45 mph (70 km/h) and a flat thermal core, which indicated the system was neither warm-core nor cold-core. In addition, satellite imagery indicated a consolidation of the convection near the center, as well as hints of upper-level outflow and a contraction of the radius of maximum winds from more than 115 miles (185 km) to about 70 miles (120 km). Based on the observations and the hybrid structure of the system, the National Hurricane Center classified the low as Subtropical Storm Andrea at 1500 UTC on May 9 about 150 miles (240 km) northeast of Daytona Beach, Florida.[8] National Weather Service Logo The U.S. National Hurricane Center is the division of National Weather Services Tropical Prediction Center responsible for tracking and predicting the likely behavior of tropical depressions, tropical storms and hurricanes. ... Global Tropical Cyclone Tracks Cyclogenesis is the technical term describing the development or strengthening of a surface low pressure system, or cyclone, in the atmosphere. ... May 8 is the 128th day of the year in the Gregorian calendar (129th in leap years). ... Official language(s) English Capital Charleston(1670-1789) Columbia(1790-present) Largest city Columbia Largest metro area Columbia Area  Ranked 40th  - Total 34,726 sq mi (82,965 km²)  - Width 200 miles (320 km)  - Length 260 miles (420 km)  - % water 6  - Latitude 32°430N to 35°12N... Convection in the most general terms refers to the internal movement of currents within fluids (i. ... Subtropical Storm Gustav in 2002 A subtropical cyclone is a weather system that has some characteristics of a tropical cyclone and some characteristics of an extratropical cyclone. ... May 9 is the 129th day of the year in the Gregorian calendar (130th in leap years). ... The introduction to this article provides insufficient context for those unfamiliar with the subject matter. ... Cyclone Catarina, a rare South Atlantic tropical cyclone viewed from the International Space Station on March 26, 2004 Hurricane and Typhoon redirect here. ... A fictitious synoptic chart of an extratropical cyclone affecting the UK & Ireland. ... Cyclone Catarina, a rare South Atlantic tropical cyclone viewed from the International Space Station on March 26, 2004 Hurricane and Typhoon redirect here. ... The radius of maximum wind, or RMW, of a tropical cyclone is defined to be the distance between the center of the cyclone and its band of strongest winds. ... For other uses, see Andrea (disambiguation). ... May 9 is the 129th day of the year in the Gregorian calendar (130th in leap years). ... Daytona Beach in 2005 Daytona Beach is a city in Volusia County, Florida, USA. As of 2004, the population estimates recorded by the U.S. Census Bureau is 64,422. ...


Upon first becoming a subtropical cyclone, Andrea was embedded within a large, nearly stationary deep-layer trough, leaving it moving westward. Drifting over sea surface temperatures of no more than 77º F (25º C),[8] the organization of the system deteriorated with a significant decrease in convection;[9] by early on May 10 much of the associated weather was located to the east of the cyclone within a band of moderate convection. Additionally, the center of circulation had become disorganized, with several small cloud swirls within the larger circulation.[10] A trough is an elongated region of relatively low atmospheric pressure, often associated with fronts. ... Annual mean sea surface temperature for the World Ocean. ... Fahrenheit is a temperature scale named after the German physicist Daniel Gabriel Fahrenheit (1686–1736), who proposed it in 1724. ... Celsius is, or relates to, the Celsius temperature scale (previously known as the centigrade scale). ... May 10 is the 130th day of the year in the Gregorian calendar (131st in leap years). ... Cyclone Catarina, a rare South Atlantic tropical cyclone viewed from the International Space Station on March 26, 2004 Hurricane and Typhoon redirect here. ...


Current storm information

As of 2 a.m. EDT May 10 (0600 UTC), Subtropical Storm Andrea is located within 30 nautical miles of 30.5°N 79.8°W, about 135 miles (215 km) SE of Savannah, Georgia or about 115 miles (185 km) NE of Daytona Beach, Florida. It has maximum sustained winds of 40 knots (45 mph, 75 km/h), with stronger gusts. Andrea's minimum central pressure is 1004 mbar (29.65 inHg), and it is stationary. Tropical storm-force winds extend up to 105 miles (165 km), mainly to the east of the center. Eastern Daylight Time or EDT is equal to: In North America, Eastern Standard Time + 1, or UTC − 4 hours. ... May 10 is the 130th day of the year in the Gregorian calendar (131st in leap years). ... ... A nautical mile or sea mile is a unit of length. ... Latitude, usually denoted symbolically by the Greek letter phi, , gives the location of a place on Earth north or south of the equator. ... Longitude, sometimes denoted by the Greek letter λ (lambda),[1][2] describes the location of a place on Earth east or west of a north-south line called the Prime Meridian. ... Southeast is the ordinal direction halfway between south and east. ... Coordinates: County Chatham  - Mayor Otis S. Johnson Area    - City 202. ... Northeast is the ordinal direction halfway between north and east. ... Daytona Beach in 2005 Daytona Beach is a city in Volusia County, Florida, USA. As of 2004, the population estimates recorded by the U.S. Census Bureau is 64,422. ... A knot is a unit of speed, abbreviated kt or kn. ... Diurnal (daily) rhythm of air pressure in northern Germany (black curve is air pressure) Atmospheric pressure is the pressure at any point in the Earths atmosphere. ... A millibar (mbar, also mb) is 1/1000th of a bar, a unit for measurement of pressure. ... Inches of mercury or inHg is a non SI unit for pressure. ...


Warnings and watches

See also: Tropical cyclone warnings and watches

As of 11 p.m. EDT (0300 UTC) May 10: See Severe weather terminology for a comprehensive article on this term and related weather terms. ... Eastern Daylight Time or EDT is equal to: In North America, Eastern Standard Time + 1, or UTC − 4 hours. ... ... May 10 is the 130th day of the year in the Gregorian calendar (131st in leap years). ...

The Altamaha River is a major river of the US state of Georgia, and its 37,600 km² (14,500 sq mi) watershed is the second largest in the eastern United States. ... Flagler Beach is a city located in Flagler County, Florida. ...

Preparations

Due to rough surf from the precursor low, local National Weather Service offices issued a High Surf Advisory for much of the coastline from Florida through North Carolina.[3] Upon first becoming a subtropical cyclone, the National Hurricane Center issued a tropical storm watch from the mouth of the Altamaha River in Georgia southward to Flagler Beach, Florida.[11] Additionally, a gale warning was issued for much of the South Carolina coastline.[12] The National Weather Service (NWS) is one of the six scientific agencies that make up the National Oceanic and Atmospheric Administration (NOAA) of the United States government. ... Official language(s) English Capital Tallahassee Largest city Jacksonville Largest metro area Miami Area  Ranked 22nd  - Total 65,795[1] sq mi (170,304[1] km²)  - Width 361 miles (582 km)  - Length 447 miles (721 km)  - % water 17. ... Official language(s) English Capital Raleigh Largest city Charlotte Area  Ranked 28th  - Total 53,865 sq mi (139,509 km²)  - Width 150 miles (240 km)  - Length 560[1] miles (901 km)  - % water 9. ... National Weather Service Logo The U.S. National Hurricane Center is the division of National Weather Services Tropical Prediction Center responsible for tracking and predicting the likely behavior of tropical depressions, tropical storms and hurricanes. ... See Severe weather terminology for a comprehensive article on this term and related weather terms. ... The Altamaha River is a major river of the US state of Georgia, and its 37,600 km² (14,500 sq mi) watershed is the second largest in the eastern United States. ... Flagler Beach is a city located in Flagler County, Florida. ... Official language(s) English Capital Charleston(1670-1789) Columbia(1790-present) Largest city Columbia Largest metro area Columbia Area  Ranked 40th  - Total 34,726 sq mi (82,965 km²)  - Width 200 miles (320 km)  - Length 260 miles (420 km)  - % water 6  - Latitude 32°430N to 35°12N...


At Isle of Palms in South Carolina, workers prepared sandbags and dozens of firefighters in preparation for high tide after waves from the storm previously caused moderate beach erosion. As a precaution, officials there intentionally cut power and gas to multiple uninhabited buildings.[12] Officials closed schools in Dare County, North Carolina due to the threat for high winds from the storm. The North Carolina Department of Transportation also canceled ferry transportation to and from Ocracoke and Knotts Island, North Carolina.[13] Isle of Palms is a city located in Charleston County, South Carolina. ... Official language(s) English Capital Charleston(1670-1789) Columbia(1790-present) Largest city Columbia Largest metro area Columbia Area  Ranked 40th  - Total 34,726 sq mi (82,965 km²)  - Width 200 miles (320 km)  - Length 260 miles (420 km)  - % water 6  - Latitude 32°430N to 35°12N... Dare County is a county located in the state of North Carolina. ... The logo of NCDOT The North Carolina Department of Transportation (NCDOT) is responsible for building, repairing, and operation of highways, bridges, and other modes of transportation, including ferries. ... Ocracoke Island. ... Knotts Island is a small unincorporated community in Currituck County, North Carolina. ...


Impact

Prior to becoming a subtropical cyclone, the low produced gale force winds and dangerous surf near the coast from North Carolina through Georgia,[5] and later along the coast of Florida.[6] Significant swells were also reported in the Bahamas.[14] The waves caused beach erosion and washed up against coastal houses.[15] Subtropical Storm Gustav in 2002 A subtropical cyclone is a weather system that has some characteristics of a tropical cyclone and some characteristics of an extratropical cyclone. ... Official language(s) English Capital Raleigh Largest city Charlotte Area  Ranked 28th  - Total 53,865 sq mi (139,509 km²)  - Width 150 miles (240 km)  - Length 560[1] miles (901 km)  - % water 9. ... Official language(s) English Capital Tallahassee Largest city Jacksonville Largest metro area Miami Area  Ranked 22nd  - Total 65,795[1] sq mi (170,304[1] km²)  - Width 361 miles (582 km)  - Length 447 miles (721 km)  - % water 17. ...


Off the coast of North Carolina, the storm produced 34 foot (10 m) waves and storm force winds which damaged three boats; their combined nine passengers were rescued by the Coast Guard. All nine were injured to some degree; three endured hypothermia, one received a broken rib, and one Coast Guardsman experienced back injuries from the surf.[16] Another boat and its four occupants remain missing.[13] Onshore, winds reached 52 mph (84 km/h) in Norfolk, Virginia, with an unofficial report of 57 mph (92 km/h) near Virginia Beach. Similar observations occurred along the Outer Banks,[17] with the winds knocking some tree limbs onto power lines;[18] some isolated power outages were reported.[13] Wind damage included some roofs losing shingles from the winds.[17] In Elizabeth City, North Carolina, an outer rainband dropped 0.5 inches (10 mm) of precipitation in about 2 hours as well as several lightning strikes; one bolt of lightning injured two firefighters.[13] The winds covered portions of North Carolina Highway 12 with sand,[17] and for a day the route was closed after waves from the storm washed out about 200 feet (60 m) of roadway.[13] In some locations, the waves eroded up to 20 feet (6 m) of beach, leaving 70 homes in imminent danger.[19] Official language(s) English Capital Raleigh Largest city Charlotte Area  Ranked 28th  - Total 53,865 sq mi (139,509 km²)  - Width 150 miles (240 km)  - Length 560[1] miles (901 km)  - % water 9. ... A coast guard is a national organization responsible for various services at sea. ... Motto: Crescas (Latin for, Thou shalt grow. ... Location in the Commonwealth o Virginia. ... North Carolinas Outer Banks separating the Atlantic Ocean (east) from Albemarle Sound (north) and Pamlico Sound (south). ... Nickname: Location in Pasquotank and Camden counties in the state of North Carolina Coordinates: Country United States State North Carolina Counties Pasquotank and Camden Mayor Rev. ... Cyclone Catarina, a rare South Atlantic tropical cyclone viewed from the International Space Station on March 26, 2004 Hurricane and Typhoon redirect here. ... NC 12 is a North Carolina state highway that mostly traverses the northeastern shoreline of North Carolina, linking the islands of the Outer Banks. ...


Rough waves from the precursor low left two kayakers missing near Seabrook Island, South Carolina. One was found the next day, while the other is currently missing.[20] Seabrook Island is a town located in Charleston County, South Carolina. ...


In Florida, waves of over 10 feet (3 m) in height capsized a boat near Lantana; the two occupants were rescued without injury. Additionally, the waves displaced a sailboat that had previously been washed ashore in Juno Beach. Large waves flooded a parking lot and destroyed several fences and tree branches at Jupiter Beach, which resulted in its temporary closure; nearby a maintenance shed was destroyed. Eight Leatherback Sea Turtle nests in Boca Raton were destroyed after the surf reached the dunes.[21] The waves forced the closure of the beach pier at Flagler Beach.[22] Strong winds from the storm spread smoke from local brush fires through the Tampa Bay area to Miami[23] Official language(s) English Capital Tallahassee Largest city Jacksonville Largest metro area Miami Area  Ranked 22nd  - Total 65,795[1] sq mi (170,304[1] km²)  - Width 361 miles (582 km)  - Length 447 miles (721 km)  - % water 17. ... Lantana is a town located in Palm Beach County, Florida. ... Juno Beach is a town located in Palm Beach County, Florida. ... Jupiter is a town located in Palm Beach County, Florida. ... Binomial name Dermochelys coriacea (Vandelli, 1761) The beautiful Leatherback Sea Turtle (Dermochelys coriacea) is the biggest of all living turtles, reaching a length of over 2. ... Nickname: A City for All Seasons Coordinates: Country United States State Florida County Palm Beach Founded 1925 Government Type Commission-Manager  - Mayor Steven L. Abrams Area    - City  29. ... Flagler Beach is a city located in Flagler County, Florida. ... Landsat image of Tampa Bay Tampa Bay is a large natural harbor and estuary along the Gulf of Mexico on the western coast of Florida, made up of Old Tampa Bay, Hillsborough Bay, McKay Bay, and the New Tampa Bay. ... This article is about the city in Florida. ...


See also

Tropical cyclones Portal

Image File history File links Download high resolution version (1000x662, 320 KB) http://eol. ... Image File history File links WikiNews-Logo. ... Wikinews is a free-content news source and a project of the Wikimedia Foundation. ... This is a list of notable Atlantic hurricanes, subdivided by reason for notability. ...

External links

References

  1. ^ Hurricane Research Division (2007). Hurdat Data for Tropical Cyclones 1851-2006. National Oceanic and Atmospheric Administration. Retrieved on 2006-10-11.
  2. ^ Cangialosi (2007). May 4 Tropical Weather Discussion. National Hurricane Center. Retrieved on 2007-05-09.
  3. ^ a b c Cangialosi (2007). May 6 Tropical Weather Discussion. National Hurricane Center. Retrieved on 2007-05-09.
  4. ^ Cangialosi (2007). May 7 Tropical Weather Discussion. National Hurricane Center. Retrieved on 2007-05-09.
  5. ^ a b Knabb (2007). May 8 Special Tropical Disturbance Statement. National Hurricane Center. Retrieved on 2007-05-09.
  6. ^ a b Brown (2007). May 9 Special Tropical Disturbance Statement. National Hurricane Center. Retrieved on 2007-05-09.
  7. ^ Franklin/Knabb (2007). May 9 Special Tropical Disturbance Statement (2). National Hurricane Center. Retrieved on 2007-05-09.
  8. ^ a b Knabb (2007). Subtropical Storm Andrea Discussion One. National Hurricane Center. Retrieved on 2007-05-09.
  9. ^ Knabb (2007). Subtropical Storm Andrea Discussion Two. National Hurricane Center. Retrieved on 2007-05-09.
  10. ^ Avila (2007). Subtropical Storm Andrea Discussion Three. National Hurricane Center. Retrieved on 2007-05-09.
  11. ^ Knabb (2007). Subtropical Storm Andrea Public Advisory One. National Hurricane Center. Retrieved on 2007-05-09.
  12. ^ a b Jennifer Wilson (2007). Forecasters: Subtropical Storm Andrea has formed. WIStv Columbia, South Carolina. Retrieved on 2007-05-09.
  13. ^ a b c d e Lauren King and Kristin Davis (2007). Season's first named storm unleashes band of rain. Virginia Pilot. Retrieved on 2007-05-09.
  14. ^ Willis (2007). May 8 Tropical Weather Discussion. National Hurricane Center. Retrieved on 2007-05-09.
  15. ^ Jessica Gresko (2007). Year's first named storm becomes Andrea, forms 3 weeks before hurricane season begins. Associated Press. Retrieved on 2007-05-09.
  16. ^ Virginia Pilot. "High drama on high seas", 2007-05-08. Retrieved on 2007-05-09. 
  17. ^ a b c Virginia Pilot. "Wind and chill chase away spring today's weather", 2007-05-07. Retrieved on 2007-05-09. 
  18. ^ Francine Sawyer (2007). Storm moving away from coast. New Bern Sun Journal. Retrieved on 2007-05-09.
  19. ^ Bryan Mims (2007). Offshore Storm System Raked N.C. Beaches. WRAL.com. Retrieved on 2007-05-09.
  20. ^ Associated Press (2007). First named '07 Atlantic storm forms near coast. Retrieved on 2007-05-09.
  21. ^ Erika Pesantes, Sally Apgar and Chrystian Tejedor. "Sweeping erosion hits Palm Beach County coast: Low-pressure system sucks swaths of sand; Jupiter feels brunt of it", South Florida Sun-Sentinel, 2007-05-09. Retrieved on 2007-05-09. 
  22. ^ Jacksonville, Florida National Weather Service (2007). May 8 Preliminary Local Storm Report. Retrieved on 2007-05-09.
  23. ^ Staff Writer (2007). Subtropical storm Andrea is swirling off the north Florida coastline. Brandenton Herald. Retrieved on 2007-05-09.

 

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